@import "tailwindcss";

:root {
  --ink: #f5fbff;
  --muted: #a9c1d1;
  --panel: rgba(13, 34, 52, 0.78);
  --line: rgba(211, 238, 250, 0.16);
  --accent: #ffd45c;
  --accent-rgb: 255, 212, 92;
  --deep: #071420;
}

/* Materie, Stoffe und Technik — aktive Lehrbuchdarstellungen */
.matter-photo,.object-stoff-stage,.sample-model-stage,.model-stage,.compare-stage,.states-stage,.changes-stage,.properties-stage,.profile-stage,.principles-stage,.evaporation-stage,.recycling-stage {
  width:100%;max-width:880px;aspect-ratio:1.55;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.14);border-radius:clamp(24px,3vw,42px);background:linear-gradient(145deg,#0d2a40,#081826);box-shadow:0 34px 76px rgba(0,0,0,.35);
}
.matter-photo>img,.object-stoff-stage>img,.properties-stage>img{width:100%;height:100%;display:block;object-fit:cover}
.matter-photo::after,.object-stoff-stage::after,.properties-stage::after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -80px 90px rgba(4,16,27,.28)}

.matter-hero>img{animation:matterHero 16s ease-in-out infinite alternate}.matter-tags{position:absolute;left:16px;right:16px;bottom:16px;z-index:3;display:flex;justify-content:space-between;gap:7px}.matter-tags span,.mix-label,.mixture-example-label{padding:8px 11px;border:1px solid rgba(255,255,255,.24);border-radius:999px;color:#edfaff;background:rgba(4,17,29,.78);backdrop-filter:blur(12px);font-size:10px;font-weight:800;box-shadow:0 9px 22px rgba(0,0,0,.2)}.matter-tags span{animation:matterFocus 10s ease-in-out infinite}.matter-tags span:nth-child(2){animation-delay:2s}.matter-tags span:nth-child(3){animation-delay:4s}.matter-tags span:nth-child(4){animation-delay:6s}.matter-tags span:nth-child(5){animation-delay:8s}
@keyframes matterHero{to{transform:scale(1.025)}}@keyframes matterFocus{0%,14%{color:#071923;background:var(--accent);transform:translateY(-4px)}22%,100%{color:#edfaff;background:rgba(4,17,29,.78);transform:none}}

.object-stoff-stage>img{position:absolute;inset:0;opacity:.27;filter:saturate(.7)}.object-stoff-stage::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(4,18,29,.55),rgba(4,18,29,.2))}.concept-card{position:absolute;top:21%;z-index:3;width:24%;min-height:150px;padding:23px 17px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.19);border-radius:25px;background:rgba(7,28,43,.89);text-align:center;box-shadow:0 18px 35px rgba(0,0,0,.25)}.concept-card.object{left:8%}.concept-card.material{left:44%;border-color:rgba(var(--accent-rgb),.45)}.concept-card small{color:#9eb9c8;font-size:8px;font-weight:900;letter-spacing:.16em}.concept-card b{margin-top:9px;color:white;font-size:28px}.concept-card span{margin-top:7px;color:var(--accent);font-size:10px}.concept-arrow{position:absolute;left:32%;top:31%;z-index:4;width:12%;display:flex;flex-direction:column;align-items:center;color:#b7ced9}.concept-arrow span{font-size:8px}.concept-arrow i{color:var(--accent);font-size:34px;font-style:normal;animation:arrowNudge 2s ease-in-out infinite}.material-choice{position:absolute;right:3%;top:12%;bottom:12%;z-index:3;width:25%;padding:18px 13px;display:flex;flex-direction:column;justify-content:center;gap:8px;border-left:2px solid var(--accent);background:linear-gradient(90deg,rgba(var(--accent-rgb),.11),transparent)}.material-choice b{margin-bottom:5px;font-size:12px;line-height:1.3}.material-choice span{padding:8px 10px;border-radius:10px;color:#c9dce5;background:rgba(255,255,255,.06);font-size:10px;animation:choiceFocus 8s ease-in-out infinite}.material-choice span:nth-of-type(2){animation-delay:2s}.material-choice span:nth-of-type(3){animation-delay:4s}.material-choice span:nth-of-type(4){animation-delay:6s}@keyframes arrowNudge{50%{transform:translateX(7px)}}@keyframes choiceFocus{0%,18%{color:#071923;background:var(--accent)}26%,100%{color:#c9dce5;background:rgba(255,255,255,.06)}}

.sample-model-stage{padding:42px;display:grid;grid-template-columns:1fr 105px 1fr;align-items:center;gap:22px}.sample-photo{height:78%;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.15);border-radius:27px;background:#091b2a}.sample-photo img{width:100%;height:100%;object-fit:cover;object-position:56% 48%;transform:scale(2.1)}.sample-photo span{position:absolute;left:12px;bottom:12px;padding:7px 10px;border-radius:999px;color:white;background:rgba(3,15,25,.75);font-size:9px;font-weight:850}.zoom-bridge{display:flex;flex-direction:column;align-items:center;text-align:center}.zoom-bridge i{width:52px;height:52px;display:grid;place-items:center;border:2px solid var(--accent);border-radius:50%;color:var(--accent);font-size:25px;font-style:normal;box-shadow:0 0 25px rgba(var(--accent-rgb),.15)}.zoom-bridge span{margin-top:8px;color:#93adba;font-size:8px;line-height:1.3}.particle-chamber{min-width:0;min-height:0;padding:20px;display:grid;grid-template-columns:repeat(6,1fr);align-content:center;justify-items:center;gap:9px;border:1px solid rgba(255,255,255,.15);border-radius:27px;background:radial-gradient(circle at 50% 42%,rgba(var(--accent-rgb),.1),rgba(4,19,31,.8));overflow:hidden}.sample-model-stage>.particle-chamber{height:78%}.matter-particle{--delay:0s;width:20px;height:20px;display:block;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff8b5 0 12%,#eaaa40 32%,#8e4b18 78%);box-shadow:inset -3px -4px 6px rgba(0,0,0,.25),0 0 10px rgba(238,174,64,.14);animation:particleHover 2.9s ease-in-out var(--delay) infinite alternate}.matter-particle.kind-b,.key-b{background:radial-gradient(circle at 35% 30%,#d9fbff,#42bfcf 42%,#176377 80%)}.matter-particle.kind-c,.key-c{background:radial-gradient(circle at 35% 30%,#f4ddff,#ad72e8 45%,#543080 80%)}.model-key{position:absolute;right:51px;bottom:18px;width:34%;display:flex;justify-content:space-between;color:#b7ced8;font-size:8px}.model-key span{display:flex;align-items:center;gap:6px}.model-key i,.legend i{width:9px;height:9px;border-radius:50%;display:block}.key-a{background:#d69031}@keyframes particleHover{to{transform:translate(2px,-3px)}}

.mixture-example-label{position:absolute;z-index:3;top:14px;width:22%;border-radius:14px;text-align:center}.mixture-example-label b,.mixture-example-label span{display:block}.mixture-example-label b{color:var(--accent);font-size:11px}.mixture-example-label span{margin-top:3px;color:#a9c2cf;font-size:7px}.mixture-example-label.granite{left:1.5%}.mixture-example-label.water{left:26%}.mixture-example-label.solution{left:51%}.mixture-example-label.emulsion{left:76%}

.model-stage{padding:38px;display:grid;grid-template-columns:31% 1fr;align-items:center;gap:110px}.model-sample{height:74%;position:relative;z-index:2;overflow:hidden;border-radius:29px;border:1px solid rgba(255,255,255,.16)}.model-sample img{width:100%;height:100%;object-fit:cover;object-position:8% 34%;transform:scale(1.65)}.model-sample span{position:absolute;left:12px;bottom:12px;padding:7px 10px;border-radius:999px;background:rgba(4,17,28,.8);font-size:9px;font-weight:800}.model-lens{height:88%;position:relative;z-index:2;padding:32px 24px 18px;border:2px solid var(--accent);border-radius:50%;background:radial-gradient(circle,rgba(var(--accent-rgb),.11),rgba(5,23,36,.93));box-shadow:0 0 36px rgba(var(--accent-rgb),.13)}.model-lens>span{position:absolute;left:50%;top:-12px;transform:translateX(-50%);padding:6px 12px;border-radius:999px;color:#071923;background:var(--accent);font-size:8px;font-weight:950;letter-spacing:.13em}.model-lens>div{height:100%;display:grid;grid-template-columns:repeat(5,1fr);align-content:center;justify-items:center;gap:13px}.model-stage>svg{position:absolute;inset:0;width:100%;height:100%;fill:none;stroke:var(--accent);stroke-width:2;stroke-dasharray:8 9;opacity:.6;animation:dashFlow 3s linear infinite}.not-photo{position:absolute;left:38px;bottom:15px;z-index:3;display:flex;gap:8px;align-items:center}.not-photo b{padding:5px 8px;border:1px solid #ff9c87;border-radius:6px;color:#ffb0a0;font-size:8px;text-transform:uppercase}.not-photo span{color:#91aeba;font-size:8px}

.compare-stage{padding:38px;display:grid;grid-template-columns:1fr 54px 1fr;gap:10px;align-items:center}.compare-card{height:89%;display:flex;flex-direction:column}.compare-card header{height:62px;padding:9px 14px;display:flex;flex-direction:column;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:16px 16px 0 0;background:rgba(255,255,255,.05)}.compare-card header b{font-size:16px}.compare-card header span{margin-top:3px;color:var(--accent);font-size:8px}.compare-card .particle-chamber{flex:1;border-radius:0 0 20px 20px}.compare-mark{display:grid;place-items:center;color:var(--accent);font-size:32px;font-weight:900}.legend{position:absolute;left:50%;bottom:13px;transform:translateX(-50%);display:flex;gap:15px;color:#a8c0cc;font-size:8px}.legend span{display:flex;align-items:center;gap:5px}

.states-stage{padding:32px;display:grid;grid-template-columns:repeat(3,1fr);gap:15px;align-items:center}.state-card{min-width:0;height:88%;display:flex;flex-direction:column;align-items:center}.state-chamber{width:100%;flex:1;padding:15px;display:grid;grid-template-columns:repeat(5,1fr);align-content:center;justify-items:center;gap:8px;border:1px solid rgba(255,255,255,.16);border-radius:22px;background:linear-gradient(rgba(255,255,255,.04),rgba(3,18,30,.64));overflow:hidden}.state-card b{margin-top:13px;color:white;font-size:17px}.state-card>span{margin-top:4px;color:#9eb8c5;font-size:8px}.state-card.solid .matter-particle{animation:solidJitter 1.2s ease-in-out var(--delay) infinite alternate}.state-card.liquid .matter-particle{animation:liquidMove 2.1s ease-in-out var(--delay) infinite alternate}.state-card.gas .state-chamber{grid-template-columns:repeat(3,1fr);align-content:space-around;gap:25px}.state-card.gas .matter-particle{animation:gasMove 1.45s ease-in-out var(--delay) infinite alternate}.state-card.gas .matter-particle:nth-child(3n){transform:translateX(14px)}@keyframes solidJitter{to{transform:translate(1px,-1px)}}@keyframes liquidMove{to{transform:translate(8px,-6px)}}@keyframes gasMove{to{transform:translate(18px,-15px)}}

.changes-stage{padding:38px 45px}.energy-scale{height:36px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;color:#9db6c3;font-size:8px}.energy-scale i{height:5px;border-radius:999px;background:linear-gradient(90deg,#68c9f0,#ffd65e,#ff756c)}.change-row{height:68%;display:grid;grid-template-columns:1fr 105px 1fr 105px 1fr;align-items:center;gap:7px}.change-row>div{height:170px;padding:20px;display:flex;flex-wrap:wrap;align-content:center;justify-content:center;gap:7px;border:1px solid rgba(255,255,255,.14);border-radius:24px;background:rgba(255,255,255,.04)}.change-row>div b{width:100%;margin-top:15px;text-align:center;font-size:14px}.change-row .liquid-dots{align-content:flex-end}.change-row .gas-dots{align-content:space-around;gap:18px}.change-arrow{color:#ffd468;font-size:9px;text-align:center;animation:heatArrow 2.5s ease-in-out infinite}.reverse-row{position:absolute;left:27%;right:9%;bottom:61px;display:grid;grid-template-columns:1fr 1fr;color:#69caee;font-size:8px;text-align:center}.change-note{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);width:max-content;max-width:85%;padding:7px 11px;border-radius:999px;color:#bfced7;background:rgba(255,255,255,.06);font-size:8px}@keyframes heatArrow{50%{color:#ff836b;transform:translateX(4px)}}

.properties-stage>img{position:absolute;inset:0;opacity:.22;filter:saturate(.65)}.properties-stage::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,20,32,.62),rgba(5,20,32,.9))}.property-grid{position:absolute;inset:38px 26px 50px;z-index:3;display:grid;grid-template-columns:repeat(5,1fr);gap:9px;align-items:center}.property-card{min-width:0;min-height:190px;padding:18px 10px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:22px;background:rgba(8,31,48,.86);text-align:center;animation:propertyFocus 5.5s ease-in-out var(--delay) infinite}.property-card>i{width:48px;height:48px;margin-bottom:15px;display:grid;place-items:center;border:2px solid var(--accent);border-radius:15px;position:relative}.property-card>i::after{color:var(--accent);font-size:24px;font-style:normal}.property-card .eye::after{content:"◉"}.property-card .drop::after{content:"●"}.property-card .magnet::after{content:"∩"}.property-card .bolt::after{content:"ϟ"}.property-card .flame::after{content:"♢"}.property-card b{font-size:10px}.property-card span{margin-top:7px;color:#9db6c3;font-size:7px;line-height:1.4}.safety-note{position:absolute;left:50%;bottom:18px;z-index:4;transform:translateX(-50%);color:#f0b6a6;font-size:8px;white-space:nowrap}@keyframes propertyFocus{0%,16%{border-color:var(--accent);transform:translateY(-7px);box-shadow:0 0 22px rgba(var(--accent-rgb),.16)}24%,100%{border-color:rgba(255,255,255,.14);transform:none;box-shadow:none}}

.profile-stage{padding:25px 31px}.profile-head,.profile-row{display:grid;grid-template-columns:1.2fr repeat(3,1fr);align-items:center}.profile-head{height:58px;padding:0 12px;border-bottom:1px solid rgba(255,255,255,.2)}.profile-head span{color:#91adbb;font-size:8px;text-transform:uppercase;letter-spacing:.12em}.profile-head b{text-align:center;font-size:15px}.profile-row{min-height:57px;padding:0 12px;border-bottom:1px solid rgba(255,255,255,.08);animation:rowFocus 4s ease-in-out var(--delay) infinite}.profile-row b{color:var(--accent);font-size:9px}.profile-row span{padding:0 8px;text-align:center;color:#c6d8e0;font-size:8px;line-height:1.35}.profile-stage>small{position:absolute;left:31px;bottom:14px;color:#86a4b3;font-size:7px}@keyframes rowFocus{0%,17%{background:rgba(var(--accent-rgb),.08)}25%,100%{background:transparent}}

.mixture-types-stage{aspect-ratio:1.55}.mix-label{position:absolute;z-index:4;bottom:15px;width:22%;border-radius:13px;text-align:center}.mix-label b,.mix-label span{display:block}.mix-label b{color:white;font-size:10px}.mix-label span{margin-top:3px;color:var(--accent);font-size:7px}.mix-label.m1{left:1.5%}.mix-label.m2{left:26%}.mix-label.m3{left:51%}.mix-label.m4{left:76%}

.principles-stage{padding:30px;display:grid;grid-template-columns:180px 1fr;align-items:center;gap:27px}.principle-core{height:180px;display:grid;place-items:center;border:2px solid var(--accent);border-radius:50%;color:white;background:radial-gradient(circle,rgba(var(--accent-rgb),.17),rgba(5,24,38,.86));box-shadow:0 0 32px rgba(var(--accent-rgb),.12);text-align:center;font-size:16px;font-weight:850}.principle-list{display:grid;gap:9px}.principle-card{min-height:78px;padding:10px 15px;display:grid;grid-template-columns:38px 1fr 25px 1.2fr;gap:10px;align-items:center;border:1px solid rgba(255,255,255,.13);border-radius:16px;background:rgba(255,255,255,.045);animation:principleFocus 5s ease-in-out var(--delay) infinite}.principle-card>i{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:rgba(var(--accent-rgb),.13)}.principle-card>i::after{color:var(--accent);font-size:17px;font-style:normal}.principle-card .mesh::after{content:"▦"}.principle-card .magnet::after{content:"∩"}.principle-card .wind::after{content:"≋"}.principle-card .heat::after{content:"⌁"}.principle-card span{display:flex;flex-direction:column}.principle-card small{color:#7895a5;font-size:6px;letter-spacing:.13em}.principle-card b{margin-top:3px;font-size:9px}.principle-card em{color:var(--accent);font-size:18px;font-style:normal}@keyframes principleFocus{0%,16%{border-color:var(--accent);transform:translateX(5px)}24%,100%{border-color:rgba(255,255,255,.13);transform:none}}

.filtration-stage .filter-label{position:absolute;z-index:4;min-width:106px;padding:8px 10px;border:1px solid rgba(255,255,255,.23);border-radius:11px;color:white;background:rgba(3,16,27,.8);backdrop-filter:blur(10px);font-size:9px;font-weight:850}.filter-label i{position:absolute;top:50%;height:1px;background:linear-gradient(90deg,white,transparent)}.filter-label.suspension{left:3%;top:9%}.filter-label.suspension i{left:100%;width:80px;transform:rotate(20deg)}.filter-label.paper{right:4%;top:10%}.filter-label.paper i{right:100%;width:110px;transform:rotate(-18deg)}.filter-label.residue{right:5%;top:38%}.filter-label.residue i{right:100%;width:125px;transform:rotate(8deg)}.filter-label.filtrate{right:4%;bottom:13%}.filter-label.filtrate i{right:100%;width:150px;transform:rotate(-9deg)}.animated-drop{position:absolute;left:47%;top:54%;z-index:4;width:9px;height:13px;border-radius:50% 50% 55% 55%;background:#d7f7ff;box-shadow:0 0 10px #8fe7ff;animation:filterDrop 1.8s ease-in infinite}@keyframes filterDrop{0%{transform:translateY(-8px);opacity:0}20%{opacity:1}100%{transform:translateY(105px);opacity:0}}

.evaporation-stage{padding:38px;display:grid;grid-template-columns:1fr .65fr 1fr;gap:20px;align-items:center}.evap-dish{height:56%;position:relative;border:1px solid rgba(255,255,255,.2);border-radius:20px 20px 50% 50%;background:linear-gradient(180deg,rgba(83,191,226,.45),rgba(32,102,137,.62));box-shadow:inset 0 -22px 30px rgba(40,124,160,.3)}.salt-solution{position:absolute;inset:20px;display:grid;grid-template-columns:repeat(6,1fr);align-items:end;justify-items:center;gap:4px}.salt-solution .matter-particle{width:11px;height:11px}.evap-dish>span,.crystal-tray>span{position:absolute;left:50%;bottom:-32px;transform:translateX(-50%);width:max-content;color:white;font-size:10px;font-weight:800}.heat-source{display:flex;flex-direction:column;align-items:center;gap:5px}.heat-source i{width:70px;height:3px;border-radius:999px;background:linear-gradient(90deg,transparent,#ff8b63,transparent);animation:heatRise 2.4s ease-in-out infinite}.heat-source i:nth-child(2){width:50px;animation-delay:.25s}.heat-source i:nth-child(3){width:32px;animation-delay:.5s}.heat-source span{margin-top:14px;color:#f4bd81;font-size:8px;text-align:center}.vapor-particles{position:absolute;left:25%;top:8%;width:24%;height:42%}.vapor-particles .matter-particle{position:absolute;width:10px;height:10px;background:radial-gradient(circle,#e7fbff,#76d0e6);animation:vaporRise 3.4s ease-in var(--delay) infinite}.vapor-particles .matter-particle:nth-child(2n){left:35%}.vapor-particles .matter-particle:nth-child(3n){left:70%}.crystal-tray{height:62%;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.15);border-radius:25px}.crystal-tray img{width:100%;height:100%;object-fit:cover;object-position:22% 92%;transform:scale(2.25)}.evap-arrow{position:absolute;left:46%;top:22%;color:#7ad6ee;font-size:8px;animation:arrowNudge 2.4s ease-in-out infinite}@keyframes heatRise{50%{transform:translateY(-9px);opacity:.45}}@keyframes vaporRise{0%{bottom:0;opacity:0}20%,75%{opacity:.8}100%{bottom:90%;transform:translateX(18px);opacity:0}}

.recycling-stage{padding:32px}.waste-input{position:absolute;left:25px;top:28px;display:flex;flex-direction:column}.waste-input b{font-size:15px}.waste-input span{margin-top:4px;color:#97b0bd;font-size:8px}.sorting-line{position:absolute;left:25px;right:25px;top:110px;display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.sorting-step{min-height:125px;padding:17px 10px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:20px;background:rgba(255,255,255,.045);animation:sortFocus 5s ease-in-out var(--delay) infinite}.sorting-step i{width:29px;height:29px;display:grid;place-items:center;border-radius:50%;color:#071923;background:var(--accent);font-size:10px;font-style:normal;font-weight:950}.sorting-step b{margin-top:10px;font-size:11px}.sorting-step span{margin-top:4px;color:#91aebb;font-size:7px}.conveyor{position:absolute;left:28px;right:28px;top:253px;height:21px;border-top:5px solid #516a78;border-bottom:5px solid #516a78;overflow:hidden}.conveyor i{position:absolute;top:2px;width:9px;height:9px;border-radius:2px;background:#ffb85c;animation:conveyorMove 4s linear infinite}.conveyor i:nth-child(2){animation-delay:.8s;background:#79d3ef}.conveyor i:nth-child(3){animation-delay:1.6s;background:#ce8beb}.conveyor i:nth-child(4){animation-delay:2.4s;background:#83d89e}.conveyor i:nth-child(5){animation-delay:3.2s;background:#ff7b76}.outputs{position:absolute;left:30px;right:30px;top:300px;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.outputs span{padding:10px;border-radius:11px;color:#dceaf0;background:rgba(var(--accent-rgb),.09);text-align:center;font-size:8px;font-weight:800}.recycling-note{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);width:max-content;max-width:90%;padding:8px 12px;border-left:2px solid var(--accent);color:#bcd0da;background:rgba(255,255,255,.04);font-size:9px}@keyframes sortFocus{0%,18%{border-color:var(--accent);box-shadow:0 0 20px rgba(var(--accent-rgb),.13)}26%,100%{border-color:rgba(255,255,255,.14);box-shadow:none}}@keyframes conveyorMove{from{left:-2%}to{left:102%}}

.start-screen::before{background:linear-gradient(90deg,rgba(4,15,24,.88),rgba(4,15,24,.34)),url('./water-soil-hero.webp') center/cover no-repeat!important;filter:saturate(.85)}.start-screen::after{background:radial-gradient(circle at 50% 35%,rgba(115,214,214,.14),transparent 38%)}.start-symbol{color:#0d2426;background:#73d6d6;box-shadow:0 0 0 12px rgba(115,214,214,.06),0 22px 55px rgba(115,214,214,.17)}.start-card>p{color:#73d6d6}.start-card>button{background:#73d6d6;box-shadow:0 16px 35px rgba(115,214,214,.16)}

@media(max-width:980px){.matter-photo,.object-stoff-stage,.sample-model-stage,.model-stage,.compare-stage,.states-stage,.changes-stage,.properties-stage,.profile-stage,.principles-stage,.evaporation-stage,.recycling-stage{max-width:760px}.property-grid{grid-template-columns:repeat(5,1fr)}}
@media(max-width:680px){.matter-photo,.object-stoff-stage,.sample-model-stage,.model-stage,.compare-stage,.states-stage,.changes-stage,.properties-stage,.profile-stage,.principles-stage,.evaporation-stage,.recycling-stage{aspect-ratio:1.42;border-radius:22px}.matter-tags{left:6px;right:6px;bottom:7px;gap:3px}.matter-tags span{padding:5px 6px;font-size:6px}.concept-card{top:18%;min-height:105px;padding:12px 7px;border-radius:15px}.concept-card small{font-size:5px}.concept-card b{font-size:17px}.concept-card span{font-size:6px}.material-choice{gap:4px;padding:8px}.material-choice b{font-size:7px}.material-choice span{padding:5px;font-size:6px}.concept-arrow span{font-size:5px}.concept-arrow i{font-size:23px}.sample-model-stage{padding:18px;grid-template-columns:1fr 50px 1fr;gap:6px}.particle-chamber{padding:8px;gap:4px}.matter-particle{width:12px;height:12px}.zoom-bridge i{width:32px;height:32px;font-size:15px}.zoom-bridge span{font-size:5px}.model-key{right:20px;bottom:7px;width:37%;font-size:5px}.mixture-example-label{top:5px;padding:4px 2px}.mixture-example-label b{font-size:7px}.mixture-example-label span{display:none}.model-stage{padding:17px;grid-template-columns:31% 1fr;gap:50px}.model-lens{padding:20px 10px 10px}.model-lens>div{gap:5px}.not-photo{left:16px;bottom:5px}.not-photo span{display:none}.compare-stage{padding:16px;grid-template-columns:1fr 25px 1fr}.compare-card header{height:42px;padding:5px 8px}.compare-card header b{font-size:10px}.compare-card header span{font-size:5px}.compare-mark{font-size:20px}.legend{bottom:4px;font-size:5px}.states-stage{padding:13px;gap:6px}.state-chamber{padding:7px;gap:3px}.state-card b{margin-top:6px;font-size:10px}.state-card>span{font-size:5px;text-align:center}.state-card.gas .state-chamber{gap:9px}.changes-stage{padding:14px}.change-row{grid-template-columns:1fr 48px 1fr 48px 1fr}.change-row>div{height:110px;padding:8px;gap:3px;border-radius:13px}.change-row>div b{margin-top:5px;font-size:8px}.change-arrow{font-size:5px}.reverse-row{bottom:35px;font-size:5px}.change-note{bottom:7px;font-size:5px}.property-grid{inset:16px 8px 27px;gap:3px}.property-card{min-height:112px;padding:8px 3px;border-radius:12px}.property-card>i{width:27px;height:27px;margin-bottom:7px;border-radius:7px}.property-card>i::after{font-size:14px}.property-card b{font-size:6px}.property-card span{font-size:4px}.safety-note{bottom:7px;font-size:5px}.profile-stage{padding:9px 12px}.profile-head{height:32px;padding:0 5px}.profile-head span{font-size:5px}.profile-head b{font-size:8px}.profile-row{min-height:35px;padding:0 5px}.profile-row b,.profile-row span{font-size:5px}.profile-stage>small{left:12px;bottom:4px;font-size:4px}.mix-label{bottom:6px;padding:5px 2px}.mix-label b{font-size:6px}.mix-label span{font-size:4px}.principles-stage{padding:12px;grid-template-columns:95px 1fr;gap:9px}.principle-core{height:95px;font-size:9px}.principle-list{gap:4px}.principle-card{min-height:44px;padding:4px 6px;grid-template-columns:20px 1fr 12px 1.2fr;gap:4px}.principle-card>i{width:19px;height:19px;border-radius:5px}.principle-card>i::after{font-size:10px}.principle-card small{font-size:3px}.principle-card b{font-size:5px}.principle-card em{font-size:10px}.filtration-stage .filter-label{min-width:62px;padding:4px 5px;font-size:5px}.filter-label.suspension i{width:40px}.filter-label.paper i,.filter-label.residue i{width:60px}.filter-label.filtrate i{width:80px}.evaporation-stage{padding:16px;gap:8px}.evap-dish>span,.crystal-tray>span{bottom:-18px;font-size:6px}.salt-solution{inset:9px}.salt-solution .matter-particle{width:7px;height:7px}.heat-source span{font-size:5px}.evap-arrow{font-size:5px}.recycling-stage{padding:12px}.waste-input{left:12px;top:10px}.waste-input b{font-size:9px}.waste-input span{font-size:5px}.sorting-line{left:12px;right:12px;top:60px;gap:4px}.sorting-step{min-height:74px;padding:7px 3px;border-radius:10px}.sorting-step i{width:18px;height:18px;font-size:6px}.sorting-step b{margin-top:5px;font-size:6px}.sorting-step span{font-size:4px}.conveyor{left:13px;right:13px;top:140px;height:13px;border-width:3px}.outputs{left:13px;right:13px;top:165px;gap:4px}.outputs span{padding:6px 2px;font-size:5px}.recycling-note{bottom:7px;font-size:5px}}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; }
body {
  background: #071420;
  color: var(--ink);
  font-family: "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; }

.learning-path {
  --accent: #ffd45c;
  --accent-rgb: 255, 212, 92;
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 78% 15%, rgba(var(--accent-rgb), .12), transparent 28%),
    linear-gradient(145deg, #081a2a 0%, #07131f 55%, #0a2030 100%);
  transition: background 700ms ease;
}

.tone-blue { --accent:#70d5ff; --accent-rgb:112,213,255; }
.tone-indigo { --accent:#a6a7ff; --accent-rgb:166,167,255; }
.tone-lime { --accent:#b9e46d; --accent-rgb:185,228,109; }
.tone-coral { --accent:#ff8f74; --accent-rgb:255,143,116; }
.tone-cyan { --accent:#6ce0da; --accent-rgb:108,224,218; }
.tone-violet { --accent:#c296ff; --accent-rgb:194,150,255; }
.tone-orange { --accent:#ffb34d; --accent-rgb:255,179,77; }
.tone-rose { --accent:#ff9ca0; --accent-rgb:255,156,160; }
.tone-red { --accent:#ff716b; --accent-rgb:255,113,107; }
.tone-mint { --accent:#70dfae; --accent-rgb:112,223,174; }
.tone-navy { --accent:#7eb5e7; --accent-rgb:126,181,231; }
.tone-yellow { --accent:#ffe35a; --accent-rgb:255,227,90; }
.tone-spectrum { --accent:#d39cff; --accent-rgb:211,156,255; }
.tone-teal { --accent:#73d6d6; --accent-rgb:115,214,214; }

.ambient { position: absolute; pointer-events: none; border-radius: 999px; filter: blur(2px); z-index: -1; }
.ambient-one { width: 38vw; height: 38vw; right: -18vw; top: 18vh; border: 1px solid rgba(var(--accent-rgb), .18); box-shadow: 0 0 100px rgba(var(--accent-rgb), .05); }
.ambient-two { width: 18vw; height: 18vw; left: -8vw; bottom: 8vh; background: rgba(var(--accent-rgb), .035); }

.topbar {
  height: 84px;
  padding: 0 clamp(22px, 4vw, 72px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 6;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; color: #101b22; background: var(--accent); box-shadow: 0 8px 30px rgba(var(--accent-rgb), .16); }
.brand > span:last-child { display: flex; flex-direction: column; line-height: 1.05; }
.brand strong { font-size: 13px; letter-spacing: .11em; }
.brand small { color: var(--muted); font-size: 12px; margin-top: 5px; }
.path-title { color: var(--muted); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; }
.page-count { justify-self: end; display: flex; gap: 8px; align-items: baseline; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.page-count span { color: var(--ink); font-size: 24px; font-weight: 700; }
.page-count i { color: var(--accent); font-style: normal; }
.progress-track { height: 3px; width: 100%; background: rgba(255,255,255,.04); position: relative; z-index: 6; }
.progress-track span { display: block; height: 100%; background: var(--accent); transition: width .55s cubic-bezier(.2,.8,.2,1); box-shadow: 0 0 18px rgba(var(--accent-rgb), .6); }

.slide {
  width: min(1500px, 100%);
  min-height: calc(100dvh - 170px);
  margin: 0 auto;
  padding: clamp(28px, 4vw, 68px) clamp(22px, 5vw, 84px) 106px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(350px, .85fr);
  align-items: center;
  gap: clamp(34px, 5vw, 90px);
  animation: slideIn .55s cubic-bezier(.2,.75,.25,1) both;
}
@keyframes slideIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.visual-column { min-width: 0; min-height: 480px; display: grid; place-items: center; }
.visual-column::before { content: ""; position: absolute; width: min(58vw, 820px); aspect-ratio: 1.45; border-radius: 44%; background: rgba(var(--accent-rgb), .035); filter: blur(35px); z-index: -1; }
.content-column { max-width: 520px; position: relative; z-index: 2; }
.eyebrow { margin: 0 0 17px; color: var(--accent); font-size: 12px; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; }
.content-column h1 { margin: 0; max-width: 10em; font-size: clamp(38px, 4.45vw, 68px); line-height: .98; letter-spacing: -.045em; text-wrap: balance; }
.memory-card { margin-top: clamp(27px, 4vh, 46px); padding: 22px 24px 24px; border-left: 3px solid var(--accent); background: linear-gradient(100deg, rgba(var(--accent-rgb), .11), rgba(255,255,255,.025)); border-radius: 0 18px 18px 0; }
.memory-card span { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.memory-card p { margin: 9px 0 0; color: #eef8fd; font-size: clamp(18px, 1.55vw, 23px); line-height: 1.44; font-weight: 520; text-wrap: pretty; }
.fact-row { margin-top: 20px; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.fact-row span { min-height: 43px; padding: 10px 14px; display: flex; align-items: center; gap: 13px; background: rgba(8,26,41,.82); color: #c4d8e4; font-size: 13px; }
.fact-row b { color: var(--accent); font-size: 10px; letter-spacing: .08em; }

.diagram { width: 100%; max-width: 840px; height: auto; overflow: visible; filter: drop-shadow(0 30px 38px rgba(0,0,0,.2)); }
.svgLabel { fill: #edf8fc; font-size: 15px; font-weight: 750; letter-spacing: .12em; }
.svgDarkLabel { fill: #4b3500; font-size: 14px; font-weight: 800; letter-spacing: .08em; }
.svgCaption { fill: #b9d0dc; font-size: 14px; font-weight: 600; }
.svgTiny { fill: #b9d0dc; font-size: 12px; }
.digitalText { fill: #62e0b4; font-size: 22px; font-family: monospace; font-weight: 700; }
.angleText { fill: white; font-size: 25px; font-style: italic; }

/* Ruhige Fachanimationen: Bewegung zeigt einen Vorgang, nicht bloß Dekoration. */
.earth-surface { transform-origin:500px 235px; animation:earthSpin 14s linear infinite; }
.rotation-arrow,.orbit-path { animation:dashFlow 7s linear infinite; }
.season-earth { animation:seasonFocus 9.6s ease-in-out infinite; }
.season-halo { fill:transparent; stroke:#ffd75a; stroke-width:3; opacity:0; }
.sun-pulse { transform-origin:380px 230px; animation:sunPulse 3.8s ease-in-out infinite; }
.thermometer-fill,.liquid-fill { transform-box:fill-box; transform-origin:center bottom; animation:liquidRise 5.5s ease-in-out infinite; }
.bimetal-needle { transform-origin:90px 130px; animation:needleSweep 5.5s ease-in-out infinite; }
.sensor-reading { animation:sensorBlink 3.2s ease-in-out infinite; }
.particle { transform-box:fill-box; transform-origin:center; }
.cold-particle { animation:coldJitter 2.4s ease-in-out infinite alternate; }
.warm-particle { animation:warmJitter 1.25s ease-in-out infinite alternate; }
.flow-arrow,.heat-flow,.heat-flow path,.light-rays path,.reflection-ray,.white-light,.spectrum-ray,.red-reflection,.eye-ray { stroke-dasharray:18 12; animation:dashFlow 2.7s linear infinite; }
.heat-convection { animation-duration:3.4s; }
.heat-radiation,.heat-radiation path { animation-duration:2.1s; }
.radiant-source,.lamp-glow { transform-box:fill-box; transform-origin:center; animation:radiantPulse 2.8s ease-in-out infinite; }
.light-field { animation:fieldBreathe 4.4s ease-in-out infinite; }
.shadow-space { animation:shadowBreathe 4.4s ease-in-out infinite; }
.reflection-ray { stroke-dasharray:620; stroke-dashoffset:620; animation:rayTravel 4.4s ease-in-out infinite; }
.outgoing-ray { animation-delay:1.35s; }
.white-light { stroke-dasharray:240; animation:dashFlow 2.4s linear infinite; }
.spectrum-ray { stroke-dasharray:290; stroke-dashoffset:290; animation:spectrumReveal 4.8s ease-in-out infinite; }
.red-reflection { stroke-dasharray:90; animation:dashFlow 1.8s linear infinite reverse; }

@keyframes earthSpin { to { transform:rotate(360deg); } }
@keyframes dashFlow { to { stroke-dashoffset:-120; } }
@keyframes seasonFocus { 0%,18% { filter:drop-shadow(0 0 13px #ffd75a); } 24%,100% { filter:none; } }
@keyframes sunPulse { 0%,100% { transform:scale(.94); opacity:.08; } 50% { transform:scale(1.12); opacity:.22; } }
@keyframes liquidRise { 0%,12% { transform:scaleY(.38); } 55%,68% { transform:scaleY(1); } 100% { transform:scaleY(.38); } }
@keyframes needleSweep { 0%,12% { transform:rotate(-28deg); } 55%,68% { transform:rotate(18deg); } 100% { transform:rotate(-28deg); } }
@keyframes sensorBlink { 0%,100% { opacity:.55; } 45%,70% { opacity:1; filter:drop-shadow(0 0 6px #62e0b4); } }
@keyframes coldJitter { from { transform:translate(-2px,1px); } to { transform:translate(2px,-1px); } }
@keyframes warmJitter { 0% { transform:translate(-8px,5px); } 35% { transform:translate(7px,-7px); } 70% { transform:translate(5px,8px); } 100% { transform:translate(-7px,-4px); } }
@keyframes radiantPulse { 0%,100% { transform:scale(.94); filter:drop-shadow(0 0 2px #ffd24f); } 50% { transform:scale(1.08); filter:drop-shadow(0 0 16px #ffd24f); } }
@keyframes fieldBreathe { 0%,100% { opacity:.55; } 50% { opacity:.9; } }
@keyframes shadowBreathe { 0%,100% { opacity:.78; } 50% { opacity:.98; } }
@keyframes rayTravel { 0% { stroke-dashoffset:620; opacity:0; } 18%,68% { opacity:1; } 82%,100% { stroke-dashoffset:0; opacity:0; } }
@keyframes spectrumReveal { 0%,10% { stroke-dashoffset:290; opacity:0; } 35%,76% { stroke-dashoffset:0; opacity:1; } 100% { stroke-dashoffset:0; opacity:.2; } }

.photo-visual { width: 100%; max-width: 880px; aspect-ratio: 1.48; position: relative; overflow: hidden; border-radius: clamp(24px,3vw,44px); border: 1px solid rgba(255,255,255,.14); box-shadow: 0 35px 80px rgba(0,0,0,.38); background: #0d2639; }
.photo-visual::after { content:""; position:absolute; inset:0; pointer-events:none; box-shadow: inset 0 0 0 1px rgba(255,255,255,.05), inset 0 -80px 100px rgba(5,18,28,.28); }
.photo-visual img { width:100%; height:100%; object-fit:cover; display:block; }
.hero-photo img { animation:heroDrift 15s ease-in-out infinite alternate; }
.energy-photo img { object-position:center; }
.energy-photo::before,.protection-photo::before { content:""; position:absolute; inset:-25%; z-index:1; pointer-events:none; background:linear-gradient(110deg,transparent 39%,rgba(255,220,96,.25) 49%,transparent 59%); transform:translateX(-52%); animation:sunSweep 7s ease-in-out infinite; }
.image-tags { position:absolute; left:20px; right:20px; bottom:18px; display:flex; justify-content:space-between; gap:8px; z-index:1; }
.image-tags span { padding:8px 12px; border:1px solid rgba(255,255,255,.24); border-radius:999px; background:rgba(4,18,28,.66); backdrop-filter:blur(12px); color:white; font-size:12px; font-weight:700; }
.image-tags span { animation:tagFocus 8s ease-in-out infinite; }.image-tags span:nth-child(2){animation-delay:2s}.image-tags span:nth-child(3){animation-delay:4s}.image-tags span:nth-child(4){animation-delay:6s}
.lens-inset { position:absolute; top:18px; right:18px; z-index:2; min-width:210px; padding:11px 14px; display:flex; align-items:center; gap:10px; border:1px solid rgba(255,255,255,.28); border-radius:16px; background:rgba(4,18,28,.72); backdrop-filter:blur(12px); color:#dbeaf0; font-size:11px; line-height:1.25; }
.lens-inset svg { width:82px; height:52px; fill:none; stroke:#ffd95d; stroke-width:2.2; stroke-linecap:round; }
.lens-inset b { color:#ffd95d; font-size:12px; }
.lens-inset svg path { stroke-dasharray:80; animation:dashFlow 2.5s linear infinite; }
@keyframes heroDrift { from { transform:scale(1); } to { transform:scale(1.035); } }
@keyframes sunSweep { 0%,18% { transform:translateX(-55%); opacity:0; } 45%,70% { opacity:1; } 88%,100% { transform:translateX(55%); opacity:0; } }
@keyframes tagFocus { 0%,16% { color:#14202a; background:var(--accent); transform:translateY(-4px); } 24%,100% { color:white; background:rgba(4,18,28,.66); transform:none; } }

.temperature-stage { width:100%; max-width:760px; min-height:480px; position:relative; display:grid; grid-template-columns:1fr 190px 1fr; align-items:center; gap:26px; }
.temperature-stage > svg { width:190px; height:480px; overflow:visible; filter:drop-shadow(0 22px 30px rgba(0,0,0,.3)); }
.temperature-context { min-height:180px; padding:27px 18px; border-radius:28px; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; border:1px solid rgba(255,255,255,.12); }
.temperature-context.cold { background:linear-gradient(160deg,rgba(44,164,231,.24),rgba(10,50,78,.55)); }
.temperature-context.hot { background:linear-gradient(160deg,rgba(255,109,80,.25),rgba(82,32,23,.55)); }
.temperature-context span { font-size:42px; }
.temperature-context strong { font-size:31px; margin-top:10px; }
.temperature-context small { color:#bad0dc; margin-top:8px; }
.micro-note { position:absolute; right:20px; bottom:40px; color:#8da8b8; font-size:11px; }

.three-panels { width:100%; max-width:820px; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.instrument-card { min-height:440px; padding:20px 15px 24px; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; border-radius:30px; border:1px solid rgba(255,255,255,.11); background:linear-gradient(160deg,rgba(var(--accent-rgb),.1),rgba(12,37,55,.72)); box-shadow:0 24px 50px rgba(0,0,0,.2); }
.instrument-card svg { width:100%; height:270px; }
.instrument-card strong { color:white; font-size:18px; }
.instrument-card span { margin-top:7px; color:#a9c3d0; font-size:12px; }

.eye-visual-v2 { width:100%; max-width:900px; aspect-ratio:1.777; position:relative; overflow:hidden; border:1px solid rgba(255,255,255,.15); border-radius:36px; background:#071729; box-shadow:0 35px 80px rgba(0,0,0,.4); }
.eye-visual-v2::after { content:""; position:absolute; inset:0; z-index:5; pointer-events:none; border-radius:inherit; box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -75px 90px rgba(3,12,20,.3); }
.eye-visual-v2 > img { width:100%; height:100%; object-fit:cover; display:block; }
.eye-optics { position:absolute; inset:0; z-index:2; width:100%; height:100%; overflow:visible; }
.eye-ray { fill:none; stroke:#ffe36d; stroke-width:5; stroke-linecap:round; filter:url(#rayGlow); stroke-dasharray:1350; stroke-dashoffset:1350; animation:eyeRayTravel 5.2s ease-in-out infinite; }
.eye-ray-center { animation-delay:.16s; }.eye-ray-lower { animation-delay:.32s; }
.focus-point { fill:#fff8a8; transform-origin:1280px 470px; animation:focusPulse 5.2s ease-in-out infinite; filter:drop-shadow(0 0 13px #ffe36d); }
.eye-label { position:absolute; z-index:4; padding:7px 10px; border:1px solid rgba(255,255,255,.27); border-radius:10px; color:#f2fbff; background:rgba(4,18,29,.76); backdrop-filter:blur(9px); box-shadow:0 7px 18px rgba(0,0,0,.25); font-size:10px; font-weight:800; letter-spacing:.02em; }
.eye-cornea { left:2%; top:20%; }.eye-pupil { left:2%; top:47%; }.eye-lens { left:31%; top:7%; }.eye-retina { right:4%; top:17%; }.eye-nerve { right:3%; bottom:17%; }.eye-vitreous { left:59%; bottom:5%; }
.eye-key { position:absolute; left:12px; bottom:11px; z-index:4; display:flex; gap:8px; }
.eye-key span { padding:6px 9px; display:flex; align-items:center; gap:6px; border-radius:9px; color:#dcecf2; background:rgba(4,18,29,.76); font-size:8px; font-weight:750; }
.eye-key i { width:19px; height:3px; border-radius:3px; background:#ffe36d; box-shadow:0 0 6px #ffe36d; }.eye-key b { width:8px; height:8px; border-radius:50%; background:#fff8a8; box-shadow:0 0 7px #ffe36d; }
@keyframes eyeRayTravel { 0%,8% { stroke-dashoffset:1350; opacity:0; } 42%,76% { stroke-dashoffset:0; opacity:.95; } 100% { stroke-dashoffset:0; opacity:0; } }
@keyframes focusPulse { 0%,40%,100% { transform:scale(.45); opacity:.3; } 58%,78% { transform:scale(1.45); opacity:1; } }
.skin-visual-v2 { width:100%; max-width:900px; aspect-ratio:1.5; position:relative; overflow:hidden; border:1px solid rgba(255,255,255,.14); border-radius:36px; background:radial-gradient(circle at 52% 42%,#6b3529,#0a1118 72%); box-shadow:0 35px 80px rgba(0,0,0,.4); }
.skin-visual-v2::after { content:""; position:absolute; inset:0; pointer-events:none; border-radius:inherit; box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -85px 95px rgba(4,14,22,.46); }
.skin-visual-v2 > img { width:100%; height:100%; object-fit:cover; display:block; }
.skin-layers { position:absolute; top:15%; right:2%; bottom:17%; z-index:3; width:148px; display:flex; flex-direction:column; justify-content:space-between; }
.skin-layers > span { padding:8px 10px 8px 25px; position:relative; border:1px solid rgba(255,255,255,.25); border-radius:12px; color:white; background:rgba(7,20,30,.78); backdrop-filter:blur(10px); font-size:12px; font-weight:800; box-shadow:0 9px 24px rgba(0,0,0,.22); }
.skin-layers i { position:absolute; left:10px; top:13px; width:8px; height:8px; border-radius:50%; background:#ffb195; box-shadow:0 0 10px currentColor; }
.skin-layers small { display:block; margin-top:3px; color:#a9c1cf; font-size:8px; font-weight:650; letter-spacing:.03em; }
.skin-layers .layer-dermis i { background:#db4f69; }
.skin-layers .layer-hypodermis i { background:#f4bd37; }
.skin-pin { position:absolute; z-index:4; width:29px; height:29px; display:grid; place-items:center; border:2px solid white; border-radius:50%; color:#15202a; background:var(--accent); font-size:11px; font-weight:900; box-shadow:0 7px 18px rgba(0,0,0,.38); }
.pin-sebum { left:42%; top:39%; }.pin-sweat { left:57%; top:58%; }.pin-touch { left:69%; top:69%; }.pin-vessel { left:48%; top:77%; }
.skin-legend { position:absolute; left:16px; right:16px; bottom:14px; z-index:3; min-height:46px; padding:8px 12px; display:grid; grid-template-columns:repeat(4,1fr); gap:9px; border:1px solid rgba(255,255,255,.19); border-radius:14px; background:rgba(5,17,26,.8); backdrop-filter:blur(12px); }
.skin-legend span { display:flex; align-items:center; gap:7px; color:#dceaf0; font-size:9px; font-weight:750; white-space:nowrap; }
.skin-legend b { width:21px; height:21px; display:grid; place-items:center; flex:0 0 auto; border-radius:50%; color:#16222a; background:var(--accent); font-size:9px; }

.hazard-grid { width:100%; max-width:820px; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.hazard-card { min-height:350px; padding:34px 22px; border-radius:32px; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; border:1px solid rgba(255,255,255,.12); background:#102c41; box-shadow:0 28px 55px rgba(0,0,0,.22); }
.hazard-card.uv { background:linear-gradient(160deg,#5b3928,#261b1e); }
.hazard-card.cut { background:linear-gradient(160deg,#4b3042,#231b2b); }
.hazard-card.chemical { background:linear-gradient(160deg,#234c4d,#13272e); }
.hazard-icon { width:118px; height:118px; margin-bottom:28px; display:grid; place-items:center; border-radius:50%; color:var(--accent); background:rgba(255,255,255,.075); font-size:72px; line-height:1; }
.hazard-card strong { font-size:19px; }
.hazard-card span { margin-top:10px; color:#b8cbd5; font-size:12px; line-height:1.5; }

.controls { position:fixed; z-index:12; left:50%; bottom:20px; transform:translateX(-50%); width:min(770px,calc(100% - 28px)); height:66px; padding:8px; display:flex; justify-content:space-between; align-items:center; gap:14px; border:1px solid rgba(255,255,255,.14); border-radius:22px; background:rgba(7,22,34,.82); backdrop-filter:blur(20px); box-shadow:0 22px 55px rgba(0,0,0,.38); }
.control-group { display:flex; align-items:center; gap:6px; }
.icon-button,.text-control,.voice-control,.speed-control { height:48px; border:0; color:#d8e8ef; background:transparent; border-radius:15px; cursor:pointer; transition:background .2s,color .2s,transform .15s; }
.icon-button { width:48px; display:grid; place-items:center; }
.icon-button:hover,.text-control:hover,.voice-control:hover,.speed-control:hover { background:rgba(255,255,255,.08); color:white; }
.icon-button:active,.text-control:active,.voice-control:active,.speed-control:active { transform:scale(.96); }
.icon-button.active { color:#07141e; background:var(--accent); }
.icon-button svg { width:23px; height:23px; fill:none; stroke:currentColor; stroke-width:1.9; stroke-linecap:round; stroke-linejoin:round; }
.text-control { padding:0 13px; font-size:12px; font-weight:700; }
.voice-control { padding:0 13px; color:var(--accent); font-size:12px; font-weight:800; }
.speed-control { width:48px; font-size:12px; font-weight:800; color:var(--accent); }
.motion-paused *, .motion-paused *::before, .motion-paused *::after { animation-play-state:paused !important; }

.voice-menu { position:fixed; left:50%; bottom:102px; z-index:20; width:min(420px,calc(100% - 32px)); padding:20px; transform:translateX(-50%); border:1px solid rgba(255,255,255,.14); border-radius:22px; background:rgba(8,27,42,.97); backdrop-filter:blur(24px); box-shadow:0 24px 70px rgba(0,0,0,.45); animation:voiceRise .24s ease both; }
@keyframes voiceRise { from{opacity:0;transform:translate(-50%,10px)} to{opacity:1;transform:translate(-50%,0)} }
.voice-menu > div { display:flex; justify-content:space-between; align-items:center; margin-bottom:6px; }
.voice-menu > div span { color:var(--accent); font-size:11px; font-weight:800; letter-spacing:.13em; text-transform:uppercase; }
.voice-menu > div button { width:32px; height:32px; border:0; border-radius:50%; color:#dcecf3; background:rgba(255,255,255,.07); cursor:pointer; font-size:20px; }
.voice-menu > p { margin:6px 0 12px; color:#91acba; font-size:12px; }
.voice-menu > button:not(:first-child) { width:100%; min-height:42px; margin-top:5px; padding:8px 12px; display:flex; justify-content:space-between; align-items:center; border:1px solid transparent; border-radius:12px; color:#d8e8ef; background:rgba(255,255,255,.04); cursor:pointer; text-align:left; font-size:12px; }
.voice-menu > button.selected { border-color:rgba(var(--accent-rgb),.55); background:rgba(var(--accent-rgb),.1); color:white; }
.voice-menu > button b { color:var(--accent); font-size:9px; letter-spacing:.08em; text-transform:uppercase; }
.voice-menu > small { display:block; padding:12px; color:#ff9d91; }

.transcript { position:fixed; right:clamp(16px,4vw,54px); bottom:102px; z-index:20; width:min(510px,calc(100% - 32px)); padding:22px 24px; border:1px solid rgba(255,255,255,.14); border-radius:22px; background:rgba(8,27,42,.96); backdrop-filter:blur(24px); box-shadow:0 24px 70px rgba(0,0,0,.45); animation:slideIn .25s ease both; }
.transcript > div { display:flex; justify-content:space-between; align-items:center; }
.transcript span { color:var(--accent); font-size:11px; font-weight:800; letter-spacing:.13em; text-transform:uppercase; }
.transcript button { width:32px; height:32px; border:0; border-radius:50%; color:#dcecf3; background:rgba(255,255,255,.07); cursor:pointer; font-size:20px; }
.transcript p { margin:13px 0 0; color:#d7e7ed; font-size:15px; line-height:1.62; }
.transcript small { display:block; margin-top:12px; color:#ff9d91; }

.msl-intro { position:fixed; inset:0; z-index:50; display:grid; place-items:center; padding:20px; background:#06131f; transition:opacity .42s ease; }
.msl-intro.finishing { opacity:0; pointer-events:none; }
.msl-intro-card { position:relative; width:min(520px,calc(100vmin - 48px)); aspect-ratio:1; overflow:hidden; border:5px solid rgba(255,255,255,.98); border-radius:22px; background:#101a29; box-shadow:0 18px 55px rgba(0,0,0,.42); }
.msl-intro-video { display:block; width:100%; height:100%; object-fit:cover; background:#101a29; }
.msl-intro-start { position:absolute; left:50%; bottom:8%; z-index:3; min-width:48%; padding:11px 18px; border:3px solid white; border-radius:999px; color:white; background:rgba(0,91,218,.94); box-shadow:0 7px 24px rgba(0,0,0,.38); font:inherit; font-size:clamp(.85rem,1.7vw,1.2rem); font-weight:900; cursor:pointer; transform:translateX(-50%); transition:opacity .18s ease,transform .18s ease,background .18s ease; }
.msl-intro-start:hover,.msl-intro-start:focus-visible { background:#0758c7; transform:translateX(-50%) scale(1.04); }
.msl-intro.playing .msl-intro-start { opacity:0; pointer-events:none; }
.msl-intro-progress { position:absolute; right:0; bottom:0; left:0; z-index:4; height:7px; overflow:hidden; background:rgba(255,255,255,.25); }
.msl-intro-progress-bar { width:0; height:100%; background:#0c8ee7; box-shadow:0 0 10px rgba(255,255,255,.8); }
.msl-intro.counting .msl-intro-progress-bar { animation:introProgress 8s linear forwards; }
@keyframes introProgress { to { width:100%; } }

.start-screen { position:fixed; inset:0; z-index:30; display:grid; place-items:center; padding:20px; overflow:hidden; background:#06131f; }
.start-screen::before { content:""; position:absolute; inset:-20px; z-index:-2; background:linear-gradient(90deg,rgba(4,15,24,.84),rgba(4,15,24,.36)),url('./water-soil-hero.webp') center/cover no-repeat; filter:saturate(.9); }
.start-screen::after { content:""; position:absolute; inset:0; z-index:-1; background:radial-gradient(circle at 50% 35%,rgba(255,211,77,.12),transparent 38%); }
.start-card { width:min(640px,100%); padding:48px 34px 38px; display:flex; flex-direction:column; align-items:center; text-align:center; border:1px solid rgba(255,255,255,.13); border-radius:38px; background:linear-gradient(145deg,rgba(18,49,70,.96),rgba(8,26,41,.96)); box-shadow:0 38px 110px rgba(0,0,0,.5); animation:startRise .7s cubic-bezier(.2,.8,.2,1) both; }
@keyframes startRise { from{opacity:0;transform:translateY(22px) scale(.98)} to{opacity:1;transform:none} }
.start-sun { width:106px; height:106px; display:grid; place-items:center; border-radius:34px; color:#182129; background:#ffd456; box-shadow:0 0 0 12px rgba(255,212,86,.06),0 22px 55px rgba(255,200,45,.18); }
.start-card > p { margin:30px 0 12px; color:#ffd456; font-size:11px; font-weight:800; letter-spacing:.2em; }
.start-card h2 { margin:0; font-size:clamp(48px,7vw,76px); line-height:.94; letter-spacing:-.055em; }
.start-note { margin-top:22px; color:#acc3cf; font-size:14px; }
.start-card > button { margin-top:34px; height:60px; padding:0 24px 0 27px; display:flex; align-items:center; gap:16px; border:0; border-radius:18px; color:#13202a; background:#ffd456; font-weight:800; cursor:pointer; box-shadow:0 16px 35px rgba(255,200,50,.16); }
.start-card > button svg { width:23px; height:23px; fill:none; stroke:currentColor; stroke-width:2; stroke-linejoin:round; }
.start-card > small { margin-top:19px; color:#7793a4; font-size:11px; }

@media (max-width: 980px) {
  .slide { grid-template-columns:1fr; gap:22px; padding-top:30px; padding-bottom:112px; align-items:start; }
  .visual-column { min-height:unset; order:1; }
  .content-column { order:2; max-width:none; display:grid; grid-template-columns:1fr 1fr; gap:14px 24px; align-items:start; }
  .eyebrow,.content-column h1 { grid-column:1; }
  .content-column h1 { font-size:clamp(34px,6vw,58px); }
  .memory-card { grid-column:2; grid-row:1 / span 2; margin-top:0; }
  .fact-row { grid-column:1 / -1; grid-template-columns:repeat(3,1fr); }
  .photo-visual { max-width:750px; }
  .diagram { max-height:45vh; }
  .visual-column::before { width:82vw; }
}

@media (max-width: 680px) {
  .topbar { height:66px; padding:0 16px; grid-template-columns:1fr auto; }
  .brand-mark { width:36px;height:36px;border-radius:12px; }
  .brand small,.path-title { display:none; }
  .page-count span { font-size:19px; }
  .slide { min-height:calc(100dvh - 69px); padding:18px 16px 104px; }
  .content-column { display:block; }
  .eyebrow { margin:18px 0 9px; }
  .content-column h1 { font-size:36px; line-height:1.02; }
  .memory-card { margin-top:18px; padding:16px 17px; }
  .memory-card p { font-size:17px; }
  .fact-row { display:none; }
  .visual-column { min-height:250px; }
  .photo-visual { border-radius:24px; aspect-ratio:1.3; }
  .diagram { max-height:39vh; }
  .skin-visual-v2 { aspect-ratio:1.27; border-radius:23px; }
  .eye-visual-v2 { aspect-ratio:1.38; border-radius:23px; }
  .eye-visual-v2 > img { object-position:center; }
  .eye-label { padding:5px 6px; border-radius:7px; font-size:7px; }
  .eye-key { display:none; }
  .skin-layers { width:104px; top:11%; bottom:18%; }
  .skin-layers > span { padding:6px 6px 6px 18px; border-radius:8px; font-size:9px; }
  .skin-layers i { left:6px; top:9px; width:7px; height:7px; }
  .skin-layers small { display:none; }
  .skin-pin { width:22px; height:22px; font-size:8px; }
  .skin-legend { left:7px; right:7px; bottom:7px; min-height:34px; padding:5px; gap:3px; }
  .skin-legend span { gap:3px; font-size:7px; }
  .skin-legend b { width:16px; height:16px; font-size:7px; }
  .three-panels,.hazard-grid { grid-template-columns:repeat(3,1fr); gap:6px; }
  .instrument-card,.hazard-card { min-height:245px; padding:10px 5px 16px; border-radius:17px; }
  .instrument-card svg { height:180px; }
  .instrument-card strong,.hazard-card strong { font-size:12px; }
  .instrument-card span,.hazard-card span { display:none; }
  .hazard-icon { width:70px;height:70px;margin-bottom:18px;font-size:40px; }
  .temperature-stage { min-height:330px; grid-template-columns:1fr 110px 1fr; gap:7px; }
  .temperature-stage > svg { width:110px;height:330px; }
  .temperature-context { min-height:130px;padding:12px 4px;border-radius:18px; }
  .temperature-context span { font-size:24px; }.temperature-context strong{font-size:18px}.temperature-context small{font-size:9px}
  .micro-note { display:none; }
  .controls { bottom:10px; height:60px; border-radius:19px; }
  .icon-button,.text-control,.voice-control,.speed-control { height:44px; }
  .icon-button { width:44px; }
  .text-control { display:none; }
  .voice-control { padding:0 9px; }
  .msl-intro-card { width:min(92vw,390px); border-width:3px; border-radius:14px; }
  .start-card { padding:36px 22px 30px;border-radius:28px; }
  .start-sun { width:84px;height:84px;border-radius:27px; }
  .start-card h2 { font-size:51px; }
  .start-note { font-size:12px; }
  .image-tags { display:none; }
  .lens-inset { min-width:0; padding:7px 9px; top:9px; right:9px; }
  .lens-inset svg { width:54px; height:35px; }
  .lens-inset span { display:none; }
}

@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation-duration:.01ms !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}

/* Mensch und Gesundheit: kontrollierte Lehrbuchgrafiken und Funktionsanimationen */
.tone-gold { --accent:#ffd45c; --accent-rgb:255,212,92; }
.tone-slate { --accent:#c6d7df; --accent-rgb:198,215,223; }
.brand-mark svg,.start-symbol svg { fill:none; stroke:currentColor; stroke-width:1.65; stroke-linecap:round; stroke-linejoin:round; }

.photo-stage,.teamwork,.fuel-stage,.balance-stage,.nutrient-stage {
  width:100%; max-width:900px; aspect-ratio:16/9; position:relative; overflow:hidden;
  border:1px solid rgba(255,255,255,.14); border-radius:clamp(24px,3vw,40px);
  background:radial-gradient(circle at 50% 30%,#173b58,#071725 72%);
  box-shadow:0 34px 80px rgba(0,0,0,.38),inset 0 0 0 1px rgba(255,255,255,.035);
}
.photo-stage::after,.nutrient-stage::after {
  content:""; position:absolute; inset:0; z-index:2; pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.045),inset 0 -60px 90px rgba(2,12,20,.22);
}
.photo-stage>img,.nutrient-stage>img { width:100%;height:100%;object-fit:cover;display:block; }

.body-stage>img { animation:bodyBreathe 8s ease-in-out infinite alternate; }
.body-stage.compact>img { transform:scale(1.02); }
.system-label,.bone-label,.spine-label,.muscle-label {
  position:absolute;z-index:4;min-width:150px;padding:9px 12px 9px 28px;border:1px solid rgba(255,255,255,.22);
  border-radius:12px;color:#f4fbff;background:rgba(4,18,30,.8);backdrop-filter:blur(10px);
  box-shadow:0 10px 25px rgba(0,0,0,.25);font-size:12px;font-weight:850;line-height:1.15;
}
.system-label small,.bone-label small,.muscle-label small { display:block;margin-top:4px;color:#9eb9c8;font-size:9px;font-weight:650; }
.system-label i,.muscle-label i { position:absolute;left:11px;top:13px;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 11px var(--accent); }
.system-label::after,.bone-label::after,.muscle-label::after { content:"";position:absolute;top:50%;width:54px;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.75),transparent); }
.label-nerves{left:3%;top:9%}.label-breath{right:3%;top:25%}.label-blood{left:3%;top:44%}.label-digest{right:3%;bottom:12%}
.label-nerves::after,.label-blood::after{left:100%}.label-breath::after,.label-digest::after{right:100%;transform:rotate(180deg)}
.label-nerves i{background:#c79bff}.label-breath i{background:#70d8ff}.label-blood i{background:#ff716b}.label-digest i{background:#ffb14d}
@keyframes bodyBreathe{from{transform:scale(1)}to{transform:scale(1.018)}}

.teamwork { overflow:visible; }
.teamwork svg { position:absolute;inset:0;width:100%;height:100%;color:#8bd8eb; }
.teamwork .flow { fill:none;stroke:currentColor;stroke-width:7;stroke-linecap:round;marker-end:url(#flowArrow);opacity:.6; }
.teamwork .oxygen{color:#6dd7ff}.teamwork .nutrient{color:#ffb65f}.teamwork .blood{color:#f47a79}
.organ-node { position:absolute;z-index:3;width:150px;min-height:112px;padding:15px 12px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:24px;background:linear-gradient(155deg,rgba(30,73,101,.95),rgba(8,29,44,.96));box-shadow:0 20px 45px rgba(0,0,0,.26);text-align:center; }
.organ-node span { width:42px;height:42px;display:grid;place-items:center;border-radius:50%;color:#0c1a23;background:var(--accent);font-size:16px;font-weight:900;box-shadow:0 0 22px rgba(var(--accent-rgb),.22); }
.organ-node b{margin-top:8px;font-size:15px}.organ-node small{margin-top:3px;color:#9eb7c5;font-size:9px}
.organ-node.lung{left:3%;top:14%}.organ-node.gut{left:3%;bottom:12%}.organ-node.heart{left:43%;top:50%;transform:translate(-50%,-50%)}.organ-node.cell{right:2%;top:50%;transform:translateY(-50%)}
.flow-dot { position:absolute;z-index:5;width:13px;height:13px;border:2px solid white;border-radius:50%;filter:drop-shadow(0 0 8px currentColor); }
.dot-o{color:#6dd7ff;background:#6dd7ff;offset-path:path("M178 145C270 145 270 235 360 235");animation:flowTravel 3.4s linear infinite}
.dot-n{color:#ffb65f;background:#ffb65f;offset-path:path("M178 360C270 360 270 265 360 265");animation:flowTravel 3.4s linear 1.7s infinite}
.dot-b{color:#f47a79;background:#f47a79;offset-path:path("M470 250C570 250 570 250 655 250");animation:flowTravel 2.7s linear .4s infinite}
.signal-line { position:absolute;left:50%;bottom:5%;transform:translateX(-50%);z-index:4;padding:8px 13px;border-radius:999px;color:#c9b0ef;background:rgba(108,67,147,.24);font-size:10px;font-weight:750;letter-spacing:.05em;white-space:nowrap; }
.signal-line span{display:inline-block;animation:signalBlink 1.4s steps(3,end) infinite}
@keyframes flowTravel{0%{offset-distance:0%;opacity:0}12%,82%{opacity:1}100%{offset-distance:100%;opacity:0}}
@keyframes signalBlink{50%{opacity:.25}}

.healthy-stage>img{object-position:center;animation:slowPan 13s ease-in-out infinite alternate}
.habit-ring{position:absolute;inset:18px;z-index:4;display:grid;grid-template-columns:1fr 1fr;align-content:space-between;justify-content:space-between;pointer-events:none}
.habit-ring span{width:max-content;padding:8px 12px;border:1px solid rgba(255,255,255,.25);border-radius:999px;color:white;background:rgba(4,18,29,.73);backdrop-filter:blur(9px);font-size:10px;font-weight:800;animation:habitFocus 8s ease-in-out infinite}
.habit-ring span:nth-child(2),.habit-ring span:nth-child(4){justify-self:end}.habit-ring span:nth-child(2){animation-delay:2s}.habit-ring span:nth-child(3){animation-delay:4s}.habit-ring span:nth-child(4){animation-delay:6s}
@keyframes habitFocus{0%,16%{color:#071923;background:var(--accent);transform:translateY(-4px)}24%,100%{color:white;background:rgba(4,18,29,.73);transform:none}}
@keyframes slowPan{from{transform:scale(1)}to{transform:scale(1.025)}}

.nutrient-stage>img{height:70%;object-position:center top}
.nutrient-grid{position:absolute;left:12px;right:12px;bottom:12px;z-index:4;display:grid;grid-template-columns:repeat(5,1fr);gap:7px}
.nutrient-card{min-height:82px;padding:10px 7px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.14);border-radius:14px;color:white;background:rgba(4,18,29,.9);text-align:center;backdrop-filter:blur(12px)}
.nutrient-card i{width:9px;height:9px;margin-bottom:7px;border-radius:50%;background:var(--dot);box-shadow:0 0 10px var(--dot)}
.nutrient-card b{font-size:10px}.nutrient-card small{margin-top:4px;color:#91adbc;font-size:7px}.carb{--dot:#ffd36b}.fat{--dot:#e8ba57}.protein{--dot:#ff8c84}.water{--dot:#66d8ff}.micro{--dot:#73dfaa}

.fuel-stage{display:grid;grid-template-columns:1fr 150px 1fr;align-items:center;gap:24px;padding:38px}
.fuel-stage>svg{position:absolute;inset:0;width:100%;height:100%;fill:none;stroke:#9cb9c8;stroke-width:4;stroke-dasharray:13 11;animation:dashFlow 3s linear infinite}
.molecule,.enzyme{position:relative;z-index:2;min-height:190px;padding:25px 16px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.13);border-radius:28px;background:rgba(8,31,48,.9);text-align:center}
.molecule b,.enzyme b{font-size:16px}.molecule small,.enzyme small{margin-top:10px;color:#9cb5c3;font-size:10px}
.molecule>div{height:55px;margin-top:14px;display:flex;align-items:center}
.molecule i{width:27px;height:27px;margin-left:-3px;display:block;border:4px solid #ffd36b;border-radius:50%;background:#70582c}
.glucose i{width:24px;height:24px;margin:0 5px;border-color:#70dfae;background:#245e49;animation:buildingBlocks 3s ease-in-out infinite alternate}
.glucose i:nth-child(even){animation-delay:.3s}.enzyme span{color:var(--accent);font-size:50px;animation:enzymeCut 2.8s ease-in-out infinite}
.use-badges{position:absolute;left:50%;bottom:20px;z-index:3;transform:translateX(-50%);display:flex;gap:7px}
.use-badges span{padding:7px 10px;border-radius:999px;color:#cfe0e8;background:rgba(255,255,255,.07);font-size:8px;font-weight:750;white-space:nowrap}
@keyframes enzymeCut{0%,100%{transform:rotate(-7deg) scale(.94)}50%{transform:rotate(9deg) scale(1.08)}}
@keyframes buildingBlocks{to{transform:translateY(-10px)}}

.digestive-stage>img{object-position:center}
.digestive-route{position:absolute;left:14px;top:50%;z-index:5;width:156px;transform:translateY(-50%);display:grid;gap:7px}
.digestive-route::before{content:"";position:absolute;left:15px;top:16px;bottom:16px;width:2px;background:linear-gradient(#ffad72,#ff7b79);opacity:.7}
.digestive-route span{--delay:0s;position:relative;min-height:40px;padding:8px 8px 8px 41px;display:flex;align-items:center;border:1px solid rgba(255,255,255,.15);border-radius:11px;color:#dcebf2;background:rgba(4,18,29,.86);backdrop-filter:blur(10px);font-size:10px;font-weight:750;animation:routeFocus 6s ease-in-out var(--delay) infinite}
.digestive-route b{position:absolute;left:5px;z-index:2;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;color:#14202a;background:#ffad72;font-size:9px}
.digestive-pins b{position:absolute;z-index:5;width:23px;height:23px;display:grid;place-items:center;border:2px solid white;border-radius:50%;color:#14202a;background:#ffad72;box-shadow:0 5px 16px rgba(0,0,0,.35);font-size:9px;animation:pinPulse 6s ease-in-out infinite}
.digestive-pins .pin-1{left:51%;top:5%}.digestive-pins .pin-2{left:51%;top:28%;animation-delay:.45s}.digestive-pins .pin-3{left:57%;top:47%;animation-delay:.9s}.digestive-pins .pin-4{left:51%;top:67%;animation-delay:1.35s}.digestive-pins .pin-5{left:63%;top:64%;animation-delay:1.8s}.digestive-pins .pin-6{left:51%;top:88%;animation-delay:2.25s}
.digestive-stage.focus-upper>img{transform:scale(1.35) translateY(11%);transform-origin:55% 20%}.digestive-stage.focus-colon>img{transform:scale(1.18) translateY(-5%);transform-origin:55% 65%}
.focus-caption{position:absolute;right:18px;top:18px;z-index:5;padding:12px 15px;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:rgba(4,18,29,.82);backdrop-filter:blur(10px)}
.focus-caption b,.focus-caption span{display:block}.focus-caption b{color:var(--accent);font-size:13px}.focus-caption span{margin-top:4px;color:#b5c9d3;font-size:9px}
.focus-upper::before{content:"";position:absolute;left:51%;top:19%;z-index:5;width:9px;height:34%;border-radius:999px;background:linear-gradient(transparent,#ffe18a,transparent);filter:drop-shadow(0 0 8px #ffe18a);animation:peristalsis 3.2s ease-in-out infinite}
.colon-key{position:absolute;right:14px;bottom:14px;z-index:5;display:grid;gap:6px}
.colon-key span{padding:8px 10px;display:flex;align-items:center;gap:8px;border-radius:11px;color:#d9e9ef;background:rgba(4,18,29,.86);font-size:9px;font-weight:700}
.colon-key i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
@keyframes routeFocus{0%,9%{border-color:#ffad72;color:white;transform:translateX(4px)}17%,100%{border-color:rgba(255,255,255,.15);color:#dcebf2;transform:none}}
@keyframes pinPulse{0%,9%{transform:scale(1.35);box-shadow:0 0 18px #ffad72}17%,100%{transform:scale(1);box-shadow:0 5px 16px rgba(0,0,0,.35)}}
@keyframes peristalsis{0%{transform:translateY(-12px);opacity:0}20%,75%{opacity:1}100%{transform:translateY(145px);opacity:0}}

.villi-stage>img{object-position:center}.villi-label{position:absolute;z-index:5;min-width:155px;padding:9px 10px 9px 40px;border:1px solid rgba(255,255,255,.2);border-radius:13px;color:white;background:rgba(4,18,29,.83);backdrop-filter:blur(10px);font-size:11px;font-weight:850}
.villi-label b{position:absolute;left:9px;top:50%;width:22px;height:22px;transform:translateY(-50%);display:grid;place-items:center;border-radius:50%;color:#10202a;background:var(--accent);font-size:9px}
.villi-label small{display:block;margin-top:3px;color:#a4bdca;font-size:8px;font-weight:650}.v-wall{left:2%;bottom:6%}.v-villi{left:39%;top:5%}.v-vessel{right:2%;bottom:5%}
.absorb-particle{--n:0;position:absolute;z-index:4;right:15%;top:calc(58% + var(--n) * 2%);width:8px;height:8px;border-radius:50%;background:#ffd45c;box-shadow:0 0 9px #ffd45c;animation:absorb 3.5s ease-in calc(var(--n) * .28s) infinite}
@keyframes absorb{0%{transform:translate(80px,-15px);opacity:0}20%{opacity:1}80%{opacity:1}100%{transform:translate(-5px,58px);opacity:0}}

.balance-stage{padding:24px 34px;display:grid;grid-template-columns:1.25fr .75fr;align-items:center;gap:28px}
.pyramid{height:100%;display:flex;flex-direction:column-reverse;justify-content:center;align-items:center;gap:7px}
.pyramid>div{height:62px;padding:8px 18px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.15);border-radius:14px;color:#11202a;background:var(--c);box-shadow:0 12px 24px rgba(0,0,0,.15);animation:pyramidFocus 8s ease-in-out infinite}
.pyramid>div span{font-size:11px;font-weight:900}.pyramid>div small{margin-top:3px;font-size:8px;font-weight:700;opacity:.72}
.pyramid .drink{--c:#72d7ee;width:94%}.pyramid .plants{--c:#75d59a;width:80%;animation-delay:1.4s}.pyramid .grain{--c:#e2cc71;width:67%;animation-delay:2.8s}.pyramid .middle{--c:#efaa70;width:54%;animation-delay:4.2s}.pyramid .top{--c:#ee7c83;width:40%;animation-delay:5.6s}
.balance-note{padding:28px 22px;border-left:3px solid var(--accent);border-radius:0 18px 18px 0;background:linear-gradient(90deg,rgba(var(--accent-rgb),.11),transparent)}
.balance-note b,.balance-note span{display:block}.balance-note b{font-size:22px;line-height:1.1}.balance-note span{margin-top:13px;color:#adc3ce;font-size:11px;line-height:1.6}
@keyframes pyramidFocus{0%,12%{filter:brightness(1.2);transform:scale(1.035)}20%,100%{filter:none;transform:none}}

.skeleton-stage>img{object-position:center}.bone-label{padding-left:12px}.skull{left:4%;top:9%}.ribs{left:4%;top:34%}.pelvis{left:4%;top:60%}.limbs{left:4%;bottom:8%}
.bone-label::after{left:100%}.spine-focus>img{transform:scale(1.2) translateX(-10%);transform-origin:80% center}
.spine-label{padding-left:12px}.curve{right:3%;top:9%}.vertebra{right:3%;top:42%}.disc{right:3%;top:57%}
.spine-label::after{content:"";position:absolute;right:100%;top:50%;width:58px;height:1px;background:linear-gradient(90deg,transparent,white)}
.compression{position:absolute;left:13%;top:19%;z-index:5;width:140px;height:265px;display:flex;flex-direction:column;align-items:center;color:#dcebf1}
.compression span,.compression small{padding:7px 10px;border-radius:999px;background:rgba(4,18,29,.84);font-size:9px;font-weight:800}.compression i{width:76px;height:26px;margin:6px 0;border:7px solid #e5d8bd;border-radius:9px;background:#75bcd4;box-shadow:inset 0 0 0 3px #27556b;animation:discCompress 3.6s ease-in-out infinite}.compression i:nth-of-type(2){animation-delay:.18s}.compression i:nth-of-type(3){animation-delay:.36s}
@keyframes discCompress{0%,100%{transform:scaleY(1)}50%{transform:scaleY(.72)}}

.joints-stage>img{object-position:center}.joint-label{position:absolute;z-index:5;bottom:14px;width:29%;padding:10px 8px;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:rgba(4,18,29,.87);backdrop-filter:blur(10px);text-align:center}
.saddle-precise{position:absolute;right:0;top:0;z-index:3;width:33.5%;height:79%;display:grid;place-items:center;background:radial-gradient(circle at 50% 44%,#173e5d,#071725 72%)}
.saddle-precise svg{width:72%;height:78%;overflow:visible;filter:drop-shadow(0 16px 24px rgba(0,0,0,.35))}
.saddle-precise>span{position:absolute;bottom:3%;color:#94bdce;font-size:8px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.saddle-axis{fill:none;stroke:#9ae2f8;stroke-width:3;stroke-linecap:round;stroke-dasharray:8 8;animation:dashFlow 2.4s linear infinite}
.axis-two{animation-direction:reverse}
.joint-label b,.joint-label span,.joint-label small{display:block}.joint-label b{color:white;font-size:12px}.joint-label span{margin-top:4px;color:var(--accent);font-size:9px;font-weight:750}.joint-label small{margin-top:3px;color:#9db6c3;font-size:8px}
.joint-label.ball{left:2%}.joint-label.hinge{left:35.5%}.joint-label.saddle{right:2%}
.joints-stage::before{content:"";position:absolute;inset:0;z-index:4;background:linear-gradient(90deg,transparent 32%,rgba(255,255,255,.15) 32.1%,transparent 32.4%,transparent 66%,rgba(255,255,255,.15) 66.1%,transparent 66.4%);pointer-events:none}
.joint-label{animation:jointFocus 7.5s ease-in-out infinite}.joint-label.hinge{animation-delay:2.5s}.joint-label.saddle{animation-delay:5s}
@keyframes jointFocus{0%,22%{transform:translateY(-8px);border-color:var(--accent);box-shadow:0 0 24px rgba(var(--accent-rgb),.18)}30%,100%{transform:none;border-color:rgba(255,255,255,.2);box-shadow:none}}

.muscle-stage>img{object-position:center}.muscle-label.biceps{right:3%;top:18%}.muscle-label.triceps{left:3%;top:39%}.muscle-label.tendon{right:3%;bottom:16%}
.muscle-label.triceps::after{left:100%;width:210px}.muscle-label.biceps::after,.muscle-label.tendon::after{right:100%;width:150px;transform:rotate(180deg)}
.biceps i{background:#ff745f}.triceps i{background:#76c7e7}.tendon i{background:#efe6cd}
.muscle-label.biceps{animation:bicepsFocus 6s ease-in-out infinite}.muscle-label.triceps{animation:tricepsFocus 6s ease-in-out infinite}
.movement-arrow{position:absolute;right:4%;bottom:8%;z-index:5;width:150px;display:flex;flex-direction:column;align-items:center;color:var(--accent);font-size:52px;line-height:.7;animation:armMove 3s ease-in-out infinite alternate}
.movement-arrow span{margin-top:14px;color:#d9e8ee;font-size:9px;font-weight:800;letter-spacing:.08em}
@keyframes bicepsFocus{0%,42%{border-color:#ff745f;box-shadow:0 0 25px rgba(255,116,95,.22)}55%,100%{border-color:rgba(255,255,255,.2);box-shadow:none}}
@keyframes tricepsFocus{0%,42%{border-color:rgba(255,255,255,.2)}55%,92%{border-color:#76c7e7;box-shadow:0 0 25px rgba(118,199,231,.22)}}
@keyframes armMove{to{transform:scaleX(.82)}}

.start-screen::before{background:linear-gradient(90deg,rgba(4,15,24,.86),rgba(4,15,24,.36)),url('./water-soil-hero.webp') center/cover no-repeat;filter:saturate(.88)}
.start-screen::after{background:radial-gradient(circle at 50% 35%,rgba(112,223,174,.13),transparent 38%)}
.start-symbol{width:106px;height:106px;display:grid;place-items:center;border-radius:34px;color:#0e2225;background:#70dfae;box-shadow:0 0 0 12px rgba(112,223,174,.06),0 22px 55px rgba(112,223,174,.17)}
.start-card>p{color:#70dfae}.start-card>button{background:#70dfae;box-shadow:0 16px 35px rgba(112,223,174,.16)}

@media(max-width:980px){
  .photo-stage,.teamwork,.fuel-stage,.balance-stage,.nutrient-stage{max-width:760px}
  .visual-column{min-height:0}
  .system-label{min-width:132px;font-size:10px}.system-label small{font-size:8px}
  .nutrient-card{min-height:68px}.digestive-route{width:140px}
}
@media(max-width:680px){
  .photo-stage,.teamwork,.fuel-stage,.balance-stage,.nutrient-stage{aspect-ratio:1.38;border-radius:22px}
  .system-label{min-width:0;max-width:118px;padding:6px 7px 6px 20px;font-size:8px}.system-label small{display:none}.system-label i{left:7px;top:9px;width:6px;height:6px}.system-label::after{width:24px}
  .label-nerves,.label-blood{left:2%}.label-breath,.label-digest{right:2%}
  .organ-node{width:88px;min-height:77px;padding:8px 4px;border-radius:15px}.organ-node span{width:28px;height:28px;font-size:11px}.organ-node b{margin-top:5px;font-size:10px}.organ-node small{display:none}
  .teamwork .flow{stroke-width:5}.signal-line{font-size:7px}.flow-dot{width:9px;height:9px}
  .nutrient-stage>img{height:66%}.nutrient-grid{left:5px;right:5px;bottom:5px;gap:3px}.nutrient-card{min-height:60px;padding:5px 2px;border-radius:8px}.nutrient-card b{font-size:7px}.nutrient-card small{display:none}
  .fuel-stage{grid-template-columns:1fr 72px 1fr;gap:8px;padding:16px}.molecule,.enzyme{min-height:130px;padding:12px 4px;border-radius:16px}.molecule b,.enzyme b{font-size:10px}.molecule small,.enzyme small{font-size:7px}.molecule i{width:16px;height:16px;border-width:2px}.glucose i{width:14px;height:14px;margin:0 2px}.enzyme span{font-size:30px}.use-badges{bottom:9px}.use-badges span{padding:4px 5px;font-size:6px}
  .digestive-route{left:6px;width:96px;gap:3px}.digestive-route span{min-height:28px;padding:4px 3px 4px 29px;border-radius:7px;font-size:7px}.digestive-route b{width:17px;height:17px;font-size:7px}.focus-caption{top:7px;right:7px;padding:7px 8px}.focus-caption span{display:none}.colon-key{right:6px;bottom:6px}.colon-key span{padding:5px 6px;font-size:6px}
  .villi-label{min-width:0;max-width:125px;padding:6px 6px 6px 28px;border-radius:8px;font-size:8px}.villi-label b{left:6px;width:17px;height:17px}.villi-label small{display:none}.v-villi{left:34%}
  .balance-stage{padding:12px;grid-template-columns:1.3fr .7fr;gap:10px}.pyramid{gap:3px}.pyramid>div{height:41px;padding:4px 8px;border-radius:8px}.pyramid>div span{font-size:7px}.pyramid>div small{font-size:6px}.balance-note{padding:12px 9px}.balance-note b{font-size:13px}.balance-note span{font-size:7px}
  .bone-label,.spine-label,.muscle-label{min-width:0;max-width:118px;padding:6px 7px;font-size:8px}.bone-label small,.muscle-label small{display:none}.bone-label::after,.spine-label::after,.muscle-label::after{width:25px}.spine-focus>img{transform:scale(1.15) translateX(-8%)}.compression{left:6%;top:13%;width:78px;height:190px}.compression i{width:45px;height:18px;border-width:4px}.compression span,.compression small{font-size:6px}
  .joint-label{bottom:5px;padding:6px 3px;border-radius:8px}.joint-label b{font-size:8px}.joint-label span{font-size:6px}.joint-label small{display:none}
  .saddle-precise>span{display:none}
  .movement-arrow{right:2%;bottom:4%;width:95px;font-size:34px}.movement-arrow span{font-size:6px}
  .start-symbol{width:84px;height:84px;border-radius:27px}
}

/* Thema-spezifische Startansicht hat Vorrang vor den archivierten Vorgängerstilen. */
.learning-path .start-symbol{color:#0d2426!important;background:#73d6d6!important;box-shadow:0 0 0 12px rgba(115,214,214,.06),0 22px 55px rgba(115,214,214,.17)!important}
.learning-path .start-card>p{color:#73d6d6!important}
.learning-path .start-card>button{background:#73d6d6!important;box-shadow:0 16px 35px rgba(115,214,214,.16)!important}

/* Lebensgrundlage Wasser und Boden — aktive Lehrtafeln */
.ws-photo,.water-properties,.surface-stage,.water-states,.anomaly-stage,.molecule-stage,.cell-stage,.impacts-stage,.photosynthesis-stage,.soil-functions,.indicators-stage,.foodweb-stage,.forest-cycle{
  width:100%;max-width:900px;aspect-ratio:1.55;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.16);border-radius:clamp(24px,3vw,42px);background:linear-gradient(145deg,#0a2a41,#071825);box-shadow:0 34px 76px rgba(0,0,0,.36)
}
.ws-photo>img,.indicators-stage>img,.foodweb-stage>img,.forest-cycle>img,.soil-functions>img{width:100%;height:100%;display:block;object-fit:cover}.ws-photo::after,.indicators-stage::after,.foodweb-stage::after,.forest-cycle::after,.soil-functions::after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -80px 100px rgba(3,15,25,.28)}
.ws-label,.habitat-label,.gas-label,.hydro-label,.fish-label,.soil-layer,.soil-life-label{position:absolute;z-index:4;min-width:150px;padding:10px 12px;border:1px solid rgba(255,255,255,.25);border-radius:14px;color:white;background:rgba(3,17,29,.79);backdrop-filter:blur(11px);box-shadow:0 12px 24px rgba(0,0,0,.22)}.ws-label b,.ws-label span,.habitat-label b,.habitat-label span,.gas-label b,.gas-label span,.hydro-label,.hydro-label small,.fish-label,.fish-label small,.soil-layer b,.soil-layer span,.soil-life-label b,.soil-life-label span{display:block}.ws-label b,.habitat-label b,.gas-label b,.soil-layer b,.soil-life-label b{font-size:11px}.ws-label span,.habitat-label span,.gas-label span,.soil-layer span,.soil-life-label span,.hydro-label small,.fish-label small{margin-top:4px;color:#a9c5d2;font-size:8px}.ws-hero>img{animation:wsDrift 16s ease-in-out infinite alternate}.water-zone{left:4%;bottom:8%}.soil-zone{right:4%;bottom:8%}.cycle-chip{position:absolute;left:50%;top:7%;z-index:4;transform:translateX(-50%);padding:8px 12px;border-radius:999px;color:#05202c;background:#79ddeb;font-size:9px;font-weight:900;box-shadow:0 0 25px rgba(121,221,235,.25)}@keyframes wsDrift{to{transform:scale(1.025)}}
.roles-stage>img{filter:saturate(.8);opacity:.62}.roles-stage::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(3,18,30,.2),rgba(3,18,30,.58))}.role-grid{position:absolute;z-index:4;right:3%;top:7%;bottom:7%;width:42%;display:grid;grid-template-columns:1fr 1fr;gap:9px}.role-grid>div{padding:16px 12px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.16);border-radius:18px;background:rgba(5,26,40,.86);text-align:center;animation:roleFocus 6s ease-in-out var(--delay) infinite}.role-grid b{font-size:12px}.role-grid span{margin-top:6px;color:var(--accent);font-size:8px}@keyframes roleFocus{0%,16%{border-color:var(--accent);transform:translateY(-5px);box-shadow:0 0 22px rgba(var(--accent-rgb),.17)}24%,100%{border-color:rgba(255,255,255,.16);transform:none;box-shadow:none}}
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.learning-path .start-screen::before{background:linear-gradient(90deg,rgba(3,15,25,.9),rgba(3,15,25,.32)),url('./water-soil-hero.webp') center/cover no-repeat!important;filter:saturate(.88)!important}.learning-path .start-symbol{color:#06212b!important;background:#78dde9!important;box-shadow:0 0 0 12px rgba(120,221,233,.06),0 22px 55px rgba(120,221,233,.18)!important}.learning-path .start-card>p{color:#78dde9!important}.learning-path .start-card>button{background:#78dde9!important;box-shadow:0 16px 35px rgba(120,221,233,.18)!important}
@media(max-width:980px){.ws-photo,.water-properties,.surface-stage,.water-states,.anomaly-stage,.molecule-stage,.cell-stage,.impacts-stage,.photosynthesis-stage,.soil-functions,.indicators-stage,.foodweb-stage,.forest-cycle{max-width:760px}.visual-column{min-height:0}}
@media(max-width:680px){.ws-photo,.water-properties,.surface-stage,.water-states,.anomaly-stage,.molecule-stage,.cell-stage,.impacts-stage,.photosynthesis-stage,.soil-functions,.indicators-stage,.foodweb-stage,.forest-cycle{aspect-ratio:1.43;border-radius:22px}.ws-label,.habitat-label,.gas-label,.hydro-label,.fish-label,.soil-layer,.soil-life-label{min-width:0;max-width:120px;padding:6px 7px;border-radius:8px}.ws-label b,.habitat-label b,.gas-label b,.soil-layer b,.soil-life-label b{font-size:7px}.ws-label span,.habitat-label span,.gas-label span,.soil-layer span,.soil-life-label span,.hydro-label small,.fish-label small{font-size:5px}.cycle-chip,.energy-chain,.decomposition-chain{font-size:5px}.role-grid{gap:4px}.role-grid>div{padding:7px 4px;border-radius:9px}.role-grid b{font-size:7px}.role-grid span{font-size:5px}.water-properties{padding:14px;grid-template-columns:92px 1fr;gap:8px}.property-water{height:95px}.property-water svg{width:40px}.property-water b{font-size:10px}.water-property-grid{gap:3px}.water-property-grid>div{min-height:80px;padding:4px 2px;border-radius:8px}.water-property-grid b{font-size:8px}.water-property-grid span{font-size:4px}.conductivity-note{left:116px;right:15px;bottom:12px;font-size:4px}.surface-air{padding:15px}.surface-water{padding:18px 30px;gap:5px}.water-dot{width:10px;height:10px}.surface-key{right:7px;top:7px}.surface-key b{font-size:6px}.surface-key span,.soap-chip{font-size:4px}.water-states{padding:12px;gap:5px}.water-state>div{padding:6px;gap:3px;border-radius:10px}.water-state b{font-size:8px}.water-state>span{font-size:4px}.water-state.vapor>div{gap:8px}.anomaly-stage{padding:11px}.density-scale{height:38px;font-size:5px}.density-scale b{width:50px;height:32px;font-size:6px}.anomaly-compare{gap:6px}.anomaly-compare>div{padding:5px;border-radius:10px}.anomaly-compare b{font-size:6px}.anomaly-compare>div>div{gap:2px}.ice-lattice>div{gap:5px!important}.anomaly-compare span,.float-note{font-size:4px}.lake-temp{padding:4px 5px;font-size:5px}.molecule-stage svg text{font-size:28px}.molecule-label{font-size:5px}.formula{font-size:22px}.electrolysis-formula{bottom:6px;font-size:6px}.gas-ratio{display:none}.hydro-label{font-size:5px}.factor-strip{bottom:4px}.factor-strip span{padding:3px 4px;font-size:4px}.quality-arrow{top:15px;font-size:5px}.indicator-grid{top:55px;bottom:35px;gap:4px}.indicator-grid>div{padding:8px 3px;border-radius:9px}.indicator-grid b{font-size:6px}.indicator-grid span{font-size:4px}.indicators-stage>small{bottom:7px;font-size:4px}.cell-label{min-width:0;max-width:90px;padding:5px;font-size:5px}.cell-label small{font-size:4px}.fish-label{font-size:5px}.web-node,.cycle-node{min-width:65px;padding:5px 6px;font-size:5px}.impact-half{padding:16px 10px}.impact-half header b{font-size:12px}.impact-half header span{font-size:5px}.impact-flow{gap:3px}.impact-flow span{padding:6px;font-size:5px}.impact-flow i{font-size:10px}.impact-half footer{font-size:4px}.cycle-node b{font-size:6px}.cycle-node span{font-size:4px}.photosynthesis-stage{padding:12px;grid-template-columns:90px 1fr 30px 1fr;gap:5px}.photo-leaf{height:100px}.photo-leaf svg{width:32px}.photo-leaf b{font-size:6px}.photo-leaf span{font-size:4px}.photo-inputs span,.photo-outputs span{padding:6px 3px;font-size:5px}.photo-inputs small,.photo-outputs small,.photo-arrow span{font-size:4px}.photo-arrow{font-size:14px}.photo-equation{bottom:5px;font-size:4px}.soil-layer{min-width:120px}.soil-layer i{max-width:95px}.soil-life-label{max-width:120px}.soil-function-grid{gap:4px}.soil-function-grid>div{padding:5px;border-radius:8px}.soil-function-grid b{font-size:5px}.soil-function-grid span{font-size:4px}.soil-threats{gap:3px}.soil-threats span{padding:4px 5px;font-size:4px}.soil-final-note{bottom:5px;font-size:4px}}

/* Qualitätskorrektur: sichtbare Fachanimationen, Lehrbuchzelle und Erzählstimme */
.electrolysis-stage::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(2,13,27,.18),transparent 42%,rgba(2,13,27,.08));pointer-events:none}
.electrolysis-stage .gas-label.h2{left:37%;top:5%}.electrolysis-stage .gas-label.h2 i{left:42%;top:100%;width:76px;transform:rotate(76deg)}
.electrolysis-stage .gas-label.o2{right:14%;top:14%}.electrolysis-stage .gas-label.o2 i{right:45%;top:100%;width:62px;transform:rotate(106deg)}
.electrolysis-particle-panel{position:absolute;left:2.5%;top:24%;bottom:17%;z-index:5;width:31%;padding:15px 13px;border:1px solid rgba(132,226,242,.42);border-radius:18px;background:rgba(3,18,34,.9);backdrop-filter:blur(12px);box-shadow:0 18px 42px rgba(0,0,0,.32),inset 0 0 30px rgba(92,215,235,.07);overflow:hidden}
.electrolysis-particle-panel>strong,.electrolysis-particle-panel>small{display:block}.electrolysis-particle-panel>strong{color:#8be3f0;font-size:10px;letter-spacing:.12em;text-transform:uppercase}.electrolysis-particle-panel>small{margin-top:3px;color:#a6bfca;font-size:7px}
.particle-reactants,.particle-products{position:absolute;left:9%;right:9%;display:flex;align-items:center;justify-content:space-around}.particle-reactants{top:30%;animation:reactantsCycle 6s ease-in-out infinite}.particle-products{bottom:22%;opacity:0;animation:productsCycle 6s ease-in-out infinite}
.mini-water{position:relative;width:64px;height:30px;display:block}.mini-water::before{content:"";position:absolute;left:10px;right:10px;top:14px;height:3px;border-radius:3px;background:#ccebf1}.mini-water i,.mini-hydrogen i,.mini-oxygen i{position:absolute;display:block;border-radius:50%;box-shadow:inset -2px -2px 4px rgba(0,0,0,.25),0 0 8px rgba(255,255,255,.18)}.mini-water .h{top:8px;width:15px;height:15px;background:#d9f5fb}.mini-water .h:first-child{left:0;animation:splitHydrogenLeft 6s ease-in-out infinite}.mini-water .h:last-child{right:0;animation:splitHydrogenRight 6s ease-in-out infinite}.mini-water .o{left:22px;top:2px;width:25px;height:25px;background:#e96962;animation:splitOxygen 6s ease-in-out infinite}
.reaction-energy{position:absolute;left:50%;top:51%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;color:#ffdd76;animation:energyFlash 1.2s ease-in-out infinite}.reaction-energy b{font-size:24px}.reaction-energy span{font-size:5px;white-space:nowrap}
.mini-hydrogen,.mini-oxygen{position:relative;width:35px;height:21px;display:block}.mini-hydrogen::before,.mini-oxygen::before{content:"";position:absolute;left:9px;right:9px;top:9px;height:3px;background:#d9eef3}.mini-hydrogen i{top:3px;width:16px;height:16px;background:#d9f5fb}.mini-hydrogen i:first-child,.mini-oxygen i:first-child{left:1px}.mini-hydrogen i:last-child,.mini-oxygen i:last-child{right:1px}.mini-oxygen i{top:1px;width:20px;height:20px;background:#e96962}.mini-oxygen{width:42px}.particle-products .plus{color:#9eb8c4;font-size:11px}.particle-caption{position:absolute;left:9%;right:9%;bottom:6%;display:flex;justify-content:space-between;color:#d9f1f5;font-size:7px;font-weight:900}
.electrolysis-bubbles{position:absolute;z-index:4;top:48%;width:5%;height:35%;overflow:hidden;pointer-events:none}.h2-bubbles{left:46%}.o2-bubbles{left:61.5%}.electrolysis-bubbles i{--bubble-delay:0s;--bubble-x:0px;position:absolute;left:50%;bottom:-10px;width:7px;height:7px;border:1.5px solid rgba(224,251,255,.9);border-radius:50%;box-shadow:0 0 7px rgba(137,230,244,.8);animation:bubbleRise 2.8s ease-in var(--bubble-delay) infinite}
@keyframes reactantsCycle{0%,30%{opacity:1;transform:scale(1)}44%,82%{opacity:0;transform:scale(1.08)}100%{opacity:1;transform:scale(1)}}
@keyframes productsCycle{0%,35%{opacity:0;transform:translateY(7px) scale(.9)}49%,84%{opacity:1;transform:none}100%{opacity:0;transform:translateY(-5px)}}
@keyframes splitHydrogenLeft{0%,28%,100%{transform:none}42%,78%{transform:translate(-18px,8px)}}@keyframes splitHydrogenRight{0%,28%,100%{transform:none}42%,78%{transform:translate(18px,8px)}}@keyframes splitOxygen{0%,28%,100%{transform:none}42%,78%{transform:translateY(-15px)}}
@keyframes energyFlash{50%{filter:drop-shadow(0 0 12px #ffce55);transform:translate(-50%,-50%) scale(1.18)}}@keyframes bubbleRise{0%{opacity:0;transform:translate(var(--bubble-x),0) scale(.55)}18%{opacity:1}100%{opacity:0;transform:translate(calc(var(--bubble-x) * -.5),-170px) scale(1.25)}}

.lake-convection,.hydro-motion{position:absolute;inset:0;z-index:3;width:100%;height:100%;fill:none;pointer-events:none}.lake-convection path{stroke:#b9f4ff;stroke-width:4;stroke-linecap:round;stroke-dasharray:10 13;filter:drop-shadow(0 0 7px #5ad8ee);animation:dashFlow 3.2s linear infinite}.lake-convection path:last-child{animation-direction:reverse}
.hydro-motion>path{stroke:#84e7f2;stroke-width:6;stroke-linecap:round;stroke-dasharray:4 16;filter:drop-shadow(0 0 7px #4ed4e8);animation:dashFlow 1.1s linear infinite}.hydro-rotor{transform-box:fill-box;transform-origin:center;animation:hydroSpin 2.4s linear infinite}.hydro-rotor circle,.hydro-rotor path{stroke:#ffe17a;stroke-width:4;fill:rgba(255,222,112,.1);filter:drop-shadow(0 0 6px #ffce55)}@keyframes hydroSpin{to{transform:rotate(360deg)}}

.cell-stage{overflow:hidden;background:#f5f2ea}.cell-stage>img{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover;animation:cellBreathe 12s ease-in-out infinite alternate}.cell-stage::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(21,51,43,.08),inset 0 -35px 60px rgba(34,62,54,.1)}
.cell-stage .cell-leaders{position:absolute;inset:0;z-index:4;filter:none;fill:none}.cell-leaders path{stroke:#173d43;stroke-width:2.5;stroke-linecap:round;stroke-dasharray:7 6;animation:cellLineFlow 3.2s linear infinite}.cell-leaders circle{fill:#fff;stroke:#173d43;stroke-width:3;animation:cellTarget 2s ease-in-out infinite}
.cell-stage .cell-label{z-index:5;min-width:148px;padding:9px 11px;border-left:4px solid var(--cell-color,#79d7e6);border-radius:10px;background:rgba(5,28,34,.91);box-shadow:0 10px 24px rgba(0,0,0,.24);animation:cellLabelFocus 7.2s ease-in-out var(--cell-delay,0s) infinite}.cell-stage .cell-label small{color:#b7ccd0}.cell-label.plasma{--cell-color:#d7a66e;--cell-delay:0s;left:1.5%;top:13%}.cell-label.nucleus{--cell-color:#b18bd2;--cell-delay:1.2s;left:1.5%;top:45%}.cell-label.membrane{--cell-color:#d88eaa;--cell-delay:2.4s;left:1.5%;bottom:8%}.cell-label.wall{--cell-color:#d8c39b;--cell-delay:3.6s;right:1.5%;top:12%}.cell-label.vacuole{--cell-color:#7fcce0;--cell-delay:4.8s;right:1.5%;top:44%}.cell-label.chloros{--cell-color:#6fc05c;--cell-delay:6s;right:1.5%;bottom:9%}.cell-model-note{position:absolute;left:50%;bottom:12px;z-index:5;transform:translateX(-50%);padding:6px 10px;border-radius:999px;color:#d9eef0;background:rgba(5,28,34,.88);font-size:6px;font-weight:850;white-space:nowrap}
@keyframes cellLineFlow{to{stroke-dashoffset:-52}}@keyframes cellTarget{50%{r:8;filter:drop-shadow(0 0 7px #fff)}}@keyframes cellLabelFocus{0%,14%{border-color:#fff;transform:translateY(-4px);box-shadow:0 0 22px color-mix(in srgb,var(--cell-color),transparent 45%)}22%,100%{border-color:var(--cell-color);transform:none;box-shadow:0 10px 24px rgba(0,0,0,.24)}}@keyframes cellBreathe{to{transform:scale(1.012)}}

.photo-leaf{animation:photoLeafPulse 3s ease-in-out infinite}.photo-arrow{animation:photoArrowFlow 1.8s ease-in-out infinite}.photo-inputs span{animation:photoInput 4s ease-in-out infinite}.photo-outputs span{animation:photoOutput 4s ease-in-out 2s infinite}@keyframes photoLeafPulse{50%{box-shadow:0 0 34px rgba(117,217,141,.28);transform:scale(1.025)}}@keyframes photoArrowFlow{50%{transform:translateX(7px);filter:drop-shadow(0 0 8px var(--accent))}}@keyframes photoInput{50%{border-color:#75d98d}}@keyframes photoOutput{50%{border-color:#ffdf75}}

.voice-control.natural{color:#8ee5c0}.voice-control.natural::after{content:"";display:inline-block;width:6px;height:6px;margin-left:6px;border-radius:50%;background:#72dda7;box-shadow:0 0 8px #72dda7}.voice-quality{margin:10px 0 12px!important;padding:10px 12px!important;display:flex!important;flex-direction:column;align-items:flex-start!important;gap:3px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.04)}.voice-quality.good{border-color:rgba(114,221,167,.34);background:rgba(114,221,167,.07)}.voice-quality.limited{border-color:rgba(255,174,116,.35);background:rgba(255,174,116,.06)}.voice-quality b{color:#dff6ee;font-size:11px}.voice-quality span{color:#94afbb!important;font-size:9px!important;text-transform:none!important;letter-spacing:0!important}.voice-preview{margin-top:10px!important;justify-content:center!important;border-color:rgba(var(--accent-rgb),.4)!important;color:var(--accent)!important;font-weight:850!important}.speed-control{width:54px}

@media(max-width:680px){.electrolysis-particle-panel{left:2%;top:26%;bottom:15%;width:34%;padding:7px 6px;border-radius:10px}.electrolysis-particle-panel>strong{font-size:5px}.electrolysis-particle-panel>small{font-size:4px}.mini-water{transform:scale(.65)}.reaction-energy b{font-size:14px}.reaction-energy span,.particle-caption{font-size:3px}.particle-products{transform:scale(.65)}.electrolysis-stage .gas-label.h2{left:38%;top:4%}.electrolysis-stage .gas-label.o2{right:9%;top:12%}.electrolysis-bubbles i{width:4px;height:4px}.cell-stage .cell-label{min-width:0;max-width:96px;padding:4px 5px;border-left-width:2px}.cell-stage .cell-label small{display:block}.cell-model-note{bottom:4px;font-size:3px}.cell-leaders path{stroke-width:2}.hydro-motion>path{stroke-width:4}.hydro-rotor{display:none}.voice-quality{padding:8px!important}}