:root{
  --cream:#FFF6E5; --cream-2:#FCEBC8; --ink:#2B2118; --ink-2:#6B5A48;
  --green:#2F7D4F; --green-2:#4FB477; --leaf:#DDF2D2;
  --orange:#FF8A3D; --orange-2:#FFD3A8; --sun:#FFC83D;
  --blue:#3A9BC9; --blue-2:#D3EEFA; --purple:#2A1E3F; --pink:#F06C9B;
  --r:28px; --shadow:0 6px 0 rgba(43,33,24,.9);
  --font-d:"ZCOOL KuaiLe","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-b:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--font-b);color:var(--ink);background:var(--cream);font-size:18px;line-height:1.7;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:inherit}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:4px solid var(--blue);outline-offset:3px;border-radius:12px}

/* top bar */
.topbar{position:fixed;inset:12px 12px auto;z-index:50;display:flex;align-items:center;gap:12px;padding:8px 10px 8px 16px;background:rgba(255,246,229,.92);backdrop-filter:blur(10px);border:3px solid var(--ink);border-radius:999px;box-shadow:0 4px 0 var(--ink)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;font-family:var(--font-d);font-size:22px;white-space:nowrap}
.nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{font-family:var(--font-d);font-size:18px;text-decoration:none;padding:6px 14px;border-radius:999px;white-space:nowrap;transition:background .2s}
.nav a:hover,.nav a.active{background:var(--sun)}
.sound-toggle{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--green-2);color:#fff;border:3px solid var(--ink);flex:none}
.sound-toggle[aria-pressed="false"]{background:#bbb}
.sound-toggle[aria-pressed="false"] .wave{opacity:0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:20px;padding:10px 22px;background:#fff;border:3px solid var(--ink);border-radius:999px;box-shadow:0 5px 0 var(--ink);text-decoration:none;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-2px);box-shadow:0 7px 0 var(--ink)}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.btn-big{font-size:26px;padding:14px 32px;background:var(--orange);color:#fff;text-shadow:0 2px 0 rgba(0,0,0,.25)}
.btn-sun{background:var(--sun);color:var(--ink);text-shadow:none}
.btn-ghost{background:rgba(255,255,255,.85)}
.btn-ghost.light{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;box-shadow:0 5px 0 rgba(255,255,255,.5)}
.btn-round{width:64px;height:64px;padding:0;justify-content:center;border-radius:50%;background:var(--sun)}
.speak.talking{background:var(--green-2);color:#fff}

/* hero */
.hero{position:relative;min-height:100svh;overflow:hidden;display:grid;place-items:center;perspective:1200px}
.hero-scene{position:absolute;inset:0;z-index:0}
.layer{position:absolute;will-change:transform;transition:transform .25s ease-out}
.l-bg{inset:-6%}
.l-bg img{width:100%;height:100%;object-fit:cover}
.l-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,rgba(255,246,229,.55),rgba(255,246,229,0) 55%),linear-gradient(transparent 70%,var(--cream))}
.l-ptero{top:4%;left:0;width:min(22vw,240px)}
.l-brachio{right:3%;bottom:14%;width:min(22vw,280px)}
.l-tri{left:4%;bottom:6%;width:min(26vw,330px)}
.l-trex{right:16%;bottom:2%;width:min(34vw,440px)}
.l-trex img{cursor:pointer;filter:drop-shadow(0 18px 18px rgba(0,0,0,.25))}
.l-tri img,.l-brachio img{filter:drop-shadow(0 14px 14px rgba(0,0,0,.2))}
.fly{animation:fly 18s linear infinite}
@keyframes fly{0%{transform:translate(-30vw,0) rotate(-4deg)}25%{transform:translate(25vw,-4vh) rotate(3deg)}50%{transform:translate(70vw,2vh) rotate(-3deg)}75%{transform:translate(105vw,-3vh)}100%{transform:translate(130vw,0)}}
.bob{animation:bob 3.2s ease-in-out infinite}
.bob.d2{animation-delay:-1.4s;animation-duration:2.8s}
@keyframes bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(-1.5deg)}}
.sway{transform-origin:50% 100%;animation:sway 5s ease-in-out infinite}
@keyframes sway{0%,100%{transform:rotate(-2deg)}50%{transform:rotate(2deg)}}
.roaring{animation:roar .6s ease-in-out!important}
@keyframes roar{0%{transform:scale(1)}20%{transform:scale(1.08) rotate(-4deg)}40%{transform:scale(1.1) rotate(3deg)}60%{transform:scale(1.08) rotate(-3deg)}100%{transform:scale(1)}}

.hero-copy{position:relative;z-index:5;text-align:center;padding:120px 20px 34vh;max-width:820px}
.hero-kicker{display:inline-block;font-family:var(--font-d);font-size:24px;color:var(--green);background:rgba(255,246,229,.9);border:3px solid var(--ink);border-radius:999px;padding:2px 18px;margin-bottom:14px}
.title-3d{font-family:var(--font-d);font-weight:400;font-size:clamp(64px,13vw,150px);line-height:1;color:var(--sun);letter-spacing:.04em;-webkit-text-stroke:4px var(--ink);paint-order:stroke fill;
  text-shadow:0 2px 0 #E89A1C,0 4px 0 #E89A1C,0 6px 0 #D9850F,0 8px 0 #C9760A,0 10px 0 var(--ink),0 18px 24px rgba(0,0,0,.25);
  animation:titleIn 1s cubic-bezier(.2,1.6,.4,1) both;transform-origin:50% 80%}
@keyframes titleIn{from{transform:scale(.4) rotateX(60deg);opacity:0}to{transform:none;opacity:1}}
.hero-sub{font-size:22px;margin:18px auto 24px;max-width:30em;font-weight:600;text-shadow:0 1px 0 #fff,0 0 14px #fff}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hint{display:inline-block;margin-top:16px;font-size:16px;font-weight:700;color:var(--ink);background:rgba(255,246,229,.92);border-radius:999px;padding:4px 16px}

/* sections */
.sec{position:relative;padding:clamp(64px,9vw,120px) clamp(16px,4vw,48px)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 40px}
.sec-head h2{font-family:var(--font-d);font-weight:400;font-size:clamp(40px,6vw,64px);line-height:1.15;margin:12px 0 10px}
.sec-head p{font-size:19px;color:var(--ink-2)}
.sec-head.light h2{color:#fff}.sec-head.light p{color:#E6DAF5}
.chip{display:inline-block;font-family:var(--font-d);font-size:18px;padding:4px 16px;border-radius:999px;background:var(--green-2);color:#fff;border:3px solid var(--ink)}
.chip-orange{background:var(--orange)}.chip-blue{background:var(--blue)}.chip-purple{background:#8E6CEF}.chip-pink{background:var(--pink)}

/* timeline */
.sec-time{background:linear-gradient(var(--cream),var(--leaf))}
.timeline{max-width:1100px;margin:0 auto}
.track{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:4px;padding-top:70px;margin-bottom:28px}
.track-line{position:absolute;left:10%;right:10%;top:96px;height:12px;border-radius:12px;background:#fff;border:3px solid var(--ink);overflow:hidden}
.track-fill{height:100%;width:0;background:repeating-linear-gradient(-45deg,var(--orange) 0 12px,var(--sun) 12px 24px);transition:width .8s cubic-bezier(.5,0,.2,1)}
.track-runner{position:absolute;top:0;left:10%;width:84px;transform:translateX(-50%);transition:left .8s cubic-bezier(.5,0,.2,1);pointer-events:none;filter:drop-shadow(0 6px 4px rgba(0,0,0,.2))}
.track-runner.run{animation:hop .2s ease-in-out 4 alternate}
@keyframes hop{to{margin-top:-10px}}
.stop{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:2px;padding-top:44px}
.stop::before{content:"";position:absolute;top:14px;width:30px;height:30px;border-radius:50%;background:#fff;border:4px solid var(--ink);transition:transform .25s,background .25s}
.stop b{font-family:var(--font-d);font-weight:400;font-size:22px}
.stop small{font-size:14px;color:var(--ink-2)}
.stop.on::before{background:var(--orange);transform:scale(1.3)}
.stop:hover::before{transform:scale(1.2)}
.era-stage{perspective:1400px;min-height:440px}
.era{display:grid;grid-template-columns:1fr 1.05fr;gap:28px;align-items:center;background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);padding:28px;animation:eraIn .7s cubic-bezier(.2,1.2,.3,1) both;transform-origin:50% 50% -200px}
.era.out-l{animation:eraOutL .35s ease-in both}.era.in-l{animation-name:eraInL}
@keyframes eraIn{from{transform:rotateY(-70deg) translateX(30%);opacity:0}to{transform:none;opacity:1}}
@keyframes eraInL{from{transform:rotateY(70deg) translateX(-30%);opacity:0}to{transform:none;opacity:1}}
.era-art{position:relative;aspect-ratio:4/3;border-radius:20px;overflow:hidden;display:grid;place-items:center}
.era-art img{position:absolute;filter:drop-shadow(0 10px 10px rgba(0,0,0,.2))}
.era-art .a1{width:66%;left:4%;bottom:6%;animation:bob 3s ease-in-out infinite}
.era-art .a2{width:46%;right:2%;bottom:18%;animation:bob 3.4s ease-in-out -1s infinite}
.era-art .full{inset:0;width:100%;height:100%;object-fit:cover;filter:none}
.era-art .center{width:72%;position:relative;animation:bob 3s ease-in-out infinite}
.era-txt .era-time{display:inline-block;font-weight:700;color:#fff;background:var(--green);border-radius:999px;padding:2px 14px;font-size:16px}
.era-txt h3{font-family:var(--font-d);font-weight:400;font-size:clamp(34px,4.5vw,48px);line-height:1.2;margin:10px 0}
.era-txt ul{list-style:none;display:grid;gap:10px;margin-bottom:18px}
.era-txt li{position:relative;padding-left:34px}
.era-txt li::before{content:"";position:absolute;left:0;top:7px;width:22px;height:22px;border-radius:50% 50% 50% 8px;background:var(--orange-2);border:3px solid var(--orange)}
.era-nav{display:flex;justify-content:center;gap:22px;margin-top:26px}
.clock-card{max-width:1100px;margin:56px auto 0;background:var(--purple);color:#fff;border:4px solid var(--ink);border-radius:var(--r);padding:28px;box-shadow:0 10px 0 var(--ink)}
.clock-card h3{font-family:var(--font-d);font-weight:400;font-size:30px;margin-bottom:18px}
.day-bar{position:relative;height:34px;border-radius:999px;background:linear-gradient(90deg,#1b1530,#3a2f68 40%,#5a4a95 80%,#3a2f68);border:3px solid #fff;overflow:hidden}
.seg-dino{position:absolute;top:0;bottom:0;background:var(--orange);box-shadow:0 0 18px var(--orange)}
.seg-human{position:absolute;top:0;bottom:0;width:3px;background:var(--sun);box-shadow:0 0 10px var(--sun)}
.day-labels{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0;font-size:15px;color:#E6DAF5}
.day-labels span:nth-child(2){color:var(--orange-2)}
.day-labels span:nth-child(n+2){text-align:right}
.clock-card p{font-size:18px}

/* cards */
.sec-dinos{background:var(--leaf)}
.filters{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.filter{font-family:var(--font-d);font-size:19px;padding:8px 20px;border-radius:999px;border:3px solid var(--ink);background:#fff}
.filter.on{background:var(--ink);color:#fff}
.cards{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.card{perspective:1100px;height:410px;transition:opacity .3s,transform .3s}
.card.hide{display:none}
.card-in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.3,1.4,.5,1)}
.card.flip .card-in{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 8px 0 var(--ink);overflow:hidden;cursor:pointer}
.front{display:flex;flex-direction:column;background:var(--c,#FFD3A8)}
.front .pic{flex:1;display:grid;place-items:center;padding:18px;background:radial-gradient(circle at 50% 60%,rgba(255,255,255,.75),rgba(255,255,255,0) 65%)}
.front .pic img{max-height:250px;object-fit:contain;transform:translateZ(40px);transition:transform .3s;filter:drop-shadow(0 12px 10px rgba(0,0,0,.22))}
.card:hover .front .pic img{transform:scale(1.07) rotate(-2deg)}
.front .nm{background:#fff;border-top:4px solid var(--ink);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.front .nm b{font-family:var(--font-d);font-weight:400;font-size:30px;line-height:1.1}
.front .nm small{display:block;font-size:13px;color:var(--ink-2);font-weight:600}
.tag{font-size:14px;font-weight:700;padding:3px 10px;border-radius:999px;border:2px solid var(--ink);white-space:nowrap}
.tag.meat{background:#FFB4A2}.tag.plant{background:#B7E4A8}.tag.fly{background:#BDE3F7}.tag.fish{background:#BDE3F7}
.back{transform:rotateY(180deg);background:#fff;padding:20px;display:flex;flex-direction:column;gap:10px}
.back h3{font-family:var(--font-d);font-weight:400;font-size:28px;line-height:1.2}
.facts{display:grid;gap:8px;font-size:16px;line-height:1.5}
.facts div{display:grid;grid-template-columns:72px 1fr;gap:8px}
.facts dt{font-weight:800;color:var(--green)}
.size-bar{margin-top:auto}
.size-bar .lbl{font-size:13px;color:var(--ink-2);font-weight:700}
.size-bar .rail{height:16px;border-radius:12px;background:var(--cream-2);border:2px solid var(--ink);overflow:hidden;margin-top:4px}
.size-bar .rail span{display:block;height:100%;background:var(--orange);width:0;transition:width 1s .3s}
.card.flip .size-bar .rail span{width:var(--w)}
.back-actions{display:flex;gap:8px}
.mini{font-size:15px;font-weight:800;padding:6px 12px;border-radius:999px;border:3px solid var(--ink);background:var(--sun);display:inline-flex;align-items:center;gap:6px}
.mini.roar{background:var(--orange-2)}

/* environment */
.sec-home{background:linear-gradient(var(--leaf),var(--blue-2))}
.world{position:relative;max-width:1150px;margin:0 auto;border:4px solid var(--ink);border-radius:var(--r);overflow:hidden;box-shadow:0 10px 0 var(--ink);transform-style:preserve-3d;transition:transform .3s ease-out}
.world-pic{position:relative}
.world img{width:100%;aspect-ratio:3/2;object-fit:cover}
.spot{position:absolute;transform:translate(-50%,-50%);width:58px;height:58px;border-radius:50%;background:var(--sun);border:4px solid var(--ink);font-family:var(--font-d);font-size:28px;display:grid;place-items:center;box-shadow:0 5px 0 var(--ink)}
.spot::after{content:"";position:absolute;inset:-12px;border-radius:50%;border:4px solid #fff;animation:ping 1.8s ease-out infinite}
.spot.seen{background:var(--green-2);color:#fff}
.spot.seen::after{animation:none;opacity:0}
.spot.cur{background:var(--orange);color:#fff;transform:translate(-50%,-50%) scale(1.15)}
@keyframes ping{from{transform:scale(.6);opacity:1}to{transform:scale(1.4);opacity:0}}
.world-info{position:absolute;left:2.5%;top:4%;width:min(38%,440px);background:#fff;border:4px solid var(--ink);border-radius:var(--r);padding:16px 20px;box-shadow:0 6px 0 var(--ink)}
.world-info p{font-size:16px;line-height:1.6}
.world-info h3{font-family:var(--font-d);font-weight:400;font-size:28px;line-height:1.2;margin-bottom:6px}
.world-info.pop{animation:pop .45s cubic-bezier(.2,1.6,.4,1)}
@keyframes pop{from{transform:scale(.92) rotateX(20deg)}to{transform:none}}
.pangaea{max-width:1150px;margin:60px auto 0;display:grid;grid-template-columns:1fr 1.3fr;gap:36px;align-items:center}
.globe-wrap{perspective:800px;display:grid;place-items:center}
.globe{width:min(100%,380px);animation:spinY 10s linear infinite;filter:drop-shadow(0 22px 22px rgba(0,0,0,.25))}
@keyframes spinY{0%{transform:rotateY(0) rotateZ(-8deg)}50%{transform:rotateY(25deg) rotateZ(-4deg) scale(1.03)}100%{transform:rotateY(0) rotateZ(-8deg)}}
.pangaea-copy h3{font-family:var(--font-d);font-weight:400;font-size:38px;margin-bottom:10px}
.pangaea-copy p{margin-bottom:12px}
.pangaea-copy b{color:var(--green);font-size:1.1em}

/* extinction */
.sec-gone{background:var(--purple);color:#fff}
.gone-stage{position:relative;aspect-ratio:16/9;border:4px solid #fff;border-radius:var(--r);overflow:hidden;background:#000}
.gone-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:filter 1.4s,transform 6s ease-out}
.rock{position:absolute;width:12%;aspect-ratio:1;left:-12%;top:-14%;border-radius:46% 54% 50% 50%;background:radial-gradient(circle at 35% 35%,#9b8a7a,#4d3f35 70%);box-shadow:0 0 50px 20px rgba(255,140,40,.8);opacity:0}
.flash{position:absolute;inset:0;background:#fff;opacity:0;pointer-events:none}
.dust{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 80%,rgba(70,60,60,.2),rgba(30,25,30,.85));opacity:0;transition:opacity 1.6s}
.snow{position:absolute;inset:0;opacity:0;transition:opacity 1.5s;background-image:radial-gradient(2px 2px at 20% 30%,#ccc,transparent),radial-gradient(2px 2px at 60% 10%,#ddd,transparent),radial-gradient(3px 3px at 80% 50%,#bbb,transparent),radial-gradient(2px 2px at 40% 70%,#ccc,transparent),radial-gradient(2px 2px at 90% 80%,#aaa,transparent),radial-gradient(3px 3px at 10% 90%,#ccc,transparent);background-size:220px 220px;animation:ash 6s linear infinite}
@keyframes ash{to{background-position:60px 220px}}
.gone-dino{position:absolute;left:4%;bottom:2%;width:26%;transition:filter 1.2s,transform 1.2s,opacity 1.2s;filter:drop-shadow(0 10px 10px rgba(0,0,0,.4))}
.gone-bird{position:absolute;left:8%;bottom:4%;width:17%;opacity:0;transform:scale(.3);transition:all .9s cubic-bezier(.2,1.6,.4,1)}
.gone-wrap{position:relative;max-width:1150px;margin:0 auto}
.gone-card{position:absolute;right:3%;top:5%;width:min(46%,440px);background:rgba(255,255,255,.95);color:var(--ink);border:4px solid var(--ink);border-radius:22px;padding:16px 20px;box-shadow:0 6px 0 var(--ink)}
.gone-card .n{font-family:var(--font-d);font-size:16px;background:var(--orange);color:#fff;border-radius:999px;padding:2px 12px;display:inline-block}
.gone-card h3{font-family:var(--font-d);font-weight:400;font-size:clamp(22px,2.6vw,32px);line-height:1.25;margin:6px 0}
.gone-card p{font-size:clamp(15px,1.5vw,18px);line-height:1.6}
.gone-card.pop{animation:pop .45s cubic-bezier(.2,1.6,.4,1)}
.gone-stage[data-step="1"] .rock{animation:fall 2.2s cubic-bezier(.5,0,.9,.6) forwards}
@keyframes fall{0%{opacity:1;left:-12%;top:-14%}85%{opacity:1;left:46%;top:54%;transform:scale(.5)}100%{opacity:0;left:52%;top:62%;transform:scale(.2)}}
.gone-stage[data-step="2"] .flash{animation:flash 1.2s ease-out}
@keyframes flash{0%{opacity:0}10%{opacity:1}100%{opacity:0}}
.gone-stage[data-step="2"] .gone-bg{animation:shake .6s 3}
@keyframes shake{0%,100%{transform:translate(0)}25%{transform:translate(-10px,6px)}50%{transform:translate(8px,-6px)}75%{transform:translate(-6px,-4px)}}
.gone-stage[data-step="2"] .dust,.gone-stage[data-step="3"] .dust,.gone-stage[data-step="4"] .dust{opacity:1}
.gone-stage[data-step="3"] .snow,.gone-stage[data-step="4"] .snow{opacity:1}
.gone-stage[data-step="3"] .gone-bg,.gone-stage[data-step="4"] .gone-bg{filter:grayscale(.85) brightness(.45)}
.gone-stage[data-step="3"] .gone-dino{filter:grayscale(.6) brightness(.7);transform:rotate(6deg) translateY(6%)}
.gone-stage[data-step="4"] .gone-dino{opacity:0;transform:translateY(20%)}
.gone-stage[data-step="5"] .gone-dino{opacity:0}
.gone-stage[data-step="5"] .gone-bg{filter:saturate(1.2) brightness(1.05)}
.gone-stage[data-step="5"] .gone-bird{opacity:1;transform:scale(1);animation:bob 2s ease-in-out .9s infinite}
.gone-controls{max-width:1150px;margin:24px auto 0;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.dots{display:flex;gap:8px;margin-right:auto}
.dots i{width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,.25);border:2px solid #fff}
.dots i.on{background:var(--sun)}

/* games */
.sec-games{background:linear-gradient(var(--cream),#FFE3EC)}
.game-tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.gtab{display:flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:22px;padding:10px 20px;border:3px solid var(--ink);border-radius:20px;background:#fff;box-shadow:0 5px 0 var(--ink);transition:transform .15s}
.gtab.on{background:var(--pink);color:#fff;transform:translateY(3px);box-shadow:0 2px 0 var(--ink)}
.gicon{width:30px;height:30px;border-radius:50%;border:3px solid var(--ink);background:var(--sun)}
.gi-feed{background:var(--green-2)}.gi-mem{background:var(--blue)}.gi-egg{background:#fff;border-radius:50% 50% 46% 46%/60% 60% 40% 40%}
.game{display:none;max-width:900px;margin:0 auto;background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);padding:24px}
.game.on{display:block;animation:pop .4s cubic-bezier(.2,1.5,.4,1)}
.g-tip{font-size:19px;font-weight:700;text-align:center;margin-bottom:16px}
.g-row{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap;margin-top:18px}
.score{font-family:var(--font-d);font-size:22px}
.score b{color:var(--orange);font-size:28px;font-weight:800;font-family:var(--font-b)}

.dig-box{position:relative;max-width:520px;margin:0 auto;aspect-ratio:1;border-radius:22px;overflow:hidden;border:4px solid var(--ink);touch-action:none}
.dig-box img{width:100%;height:100%;object-fit:cover}
#digCanvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab}
.dig-done{position:absolute;inset:auto 0 0;padding:14px;text-align:center;font-family:var(--font-d);font-size:28px;background:rgba(255,255,255,.92);border-top:4px solid var(--ink);transform:translateY(110%);transition:transform .5s cubic-bezier(.2,1.5,.4,1)}
.dig-done.show{transform:none}
.meter{width:min(320px,70%);height:22px;border-radius:999px;border:3px solid var(--ink);background:var(--cream-2);overflow:hidden}
.meter span{display:block;height:100%;width:0;background:var(--green-2);transition:width .2s}

.feed-stage{text-align:center}
.feed-dino-wrap{position:relative;display:inline-block}
#feedDino{height:260px;width:auto;object-fit:contain;margin:0 auto;filter:drop-shadow(0 12px 10px rgba(0,0,0,.2))}
#feedDino.happy{animation:roar .7s}
#feedDino.no{animation:no .5s}
@keyframes no{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-14px)}40%,80%{transform:translateX(14px)}}
.bubble{position:absolute;top:-6px;right:-30px;font-family:var(--font-d);font-size:22px;background:#fff;border:3px solid var(--ink);border-radius:20px;padding:6px 14px;white-space:nowrap}
.feed-name{font-family:var(--font-d);font-size:34px;margin-top:6px}
.foods{display:flex;justify-content:center;gap:18px;margin-top:16px;flex-wrap:wrap}
.food{width:130px;padding:12px;border:4px solid var(--ink);border-radius:24px;background:var(--cream);box-shadow:0 6px 0 var(--ink);display:flex;flex-direction:column;align-items:center;font-family:var(--font-d);font-size:22px;transition:transform .12s}
.food svg{width:80px;height:80px}
.food:hover{transform:translateY(-4px) rotate(-3deg)}
.food:active{transform:translateY(4px)}
.food.fly-in{animation:eat .6s ease-in forwards}
@keyframes eat{to{transform:translateY(-200px) scale(.2);opacity:0}}

.mem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:640px;margin:0 auto}
.mcard{aspect-ratio:3/4;perspective:700px}
.mcard .in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.3,1.4,.5,1)}
.mcard.open .in,.mcard.done .in{transform:rotateY(180deg)}
.mcard .f,.mcard .b{position:absolute;inset:0;border:4px solid var(--ink);border-radius:18px;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:grid;place-items:center}
.mcard .f{background:repeating-linear-gradient(45deg,var(--green-2) 0 14px,#5fc487 14px 28px)}
.mcard .f::after{content:"?";font-family:var(--font-d);font-size:44px;color:#fff;-webkit-text-stroke:2px var(--ink)}
.mcard .b{transform:rotateY(180deg);background:var(--cream);padding:6px}
.mcard .b img{max-height:100%;object-fit:contain}
.mcard.done .b{background:#FFF0A8;animation:pop .5s}

.egg-stage{position:relative;height:380px;display:grid;place-items:center}
.egg-btn{width:220px;transition:transform .1s}
.egg-svg{width:100%;overflow:visible}
.egg-btn.wobble{animation:wob .4s}
@keyframes wob{0%,100%{transform:rotate(0)}25%{transform:rotate(-12deg)}75%{transform:rotate(12deg)}}
.cracks path{stroke-dasharray:200;stroke-dashoffset:200;transition:stroke-dashoffset .3s}
.cracks path.show{stroke-dashoffset:0}
.egg-btn.burst{animation:burst .5s forwards}
@keyframes burst{to{transform:scale(1.4);opacity:0}}
.baby{position:absolute;width:300px;opacity:0;transform:scale(.2) translateY(40px);transition:all .7s cubic-bezier(.2,1.6,.4,1);pointer-events:none;mix-blend-mode:multiply}
.baby.show{opacity:1;transform:none}
.egg-msg{position:absolute;bottom:0;font-family:var(--font-d);font-size:26px}
.egg-msg b{color:var(--orange);font-weight:800;font-family:var(--font-b);font-size:32px}
.confetti{position:fixed;width:12px;height:16px;top:0;z-index:99;pointer-events:none;border-radius:3px}

.foot{background:var(--green);color:#fff;text-align:center;padding:56px 20px 40px;position:relative}
.foot-dino{width:160px;margin:-120px auto 8px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.25))}
.foot p{font-family:var(--font-d);font-size:22px}
.foot .small{font-family:var(--font-b);font-size:14px;opacity:.85;max-width:520px;margin:6px auto 0}

.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,200px);visibility:hidden;z-index:80;background:var(--ink);color:#fff;font-family:var(--font-d);font-size:22px;padding:10px 22px;border-radius:999px;transition:transform .4s cubic-bezier(.2,1.5,.4,1)}
.toast.show{transform:translate(-50%,0);visibility:visible}

.reveal{opacity:0;transform:translateY(40px) rotateX(12deg);transition:opacity .8s,transform .8s cubic-bezier(.2,1,.3,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:860px){
  .nav{display:none}
  .topbar{padding-right:8px}
  .sound-toggle{margin-left:auto}
  .era{grid-template-columns:1fr;padding:18px}
  .pangaea{grid-template-columns:1fr;text-align:center}
  .globe{width:min(70%,260px)}
  .world-info{position:relative;left:auto;top:auto;width:auto;border:0;border-top:4px solid var(--ink);border-radius:0;box-shadow:none}
  .spot{width:44px;height:44px;font-size:22px}
  .gone-stage{aspect-ratio:4/3;border-radius:var(--r) var(--r) 0 0}
  .gone-dino{width:36%}.gone-bird{width:18%}
  .gone-card{position:relative;inset:auto;width:auto;border-color:#fff;border-top:0;border-radius:0 0 var(--r) var(--r);box-shadow:none}
  .day-labels{grid-template-columns:1fr 1fr}
  .day-labels span:nth-child(n){text-align:left}
}
@media (max-width:560px){
  body{font-size:17px}
  .track{grid-template-columns:repeat(5,1fr)}
  .stop b{font-size:16px}.stop small{font-size:11px}
  .track-runner{width:56px}
  .l-trex{right:-4%;width:52vw}.l-tri{width:40vw;left:-4%}.l-brachio{width:30vw;right:-2%;bottom:30%}.l-ptero{width:34vw}
  .hero-copy{padding-bottom:40vh}
  .hero-sub{font-size:19px}
  .mem-grid{gap:8px}
  .foods{gap:8px;flex-wrap:nowrap}.food{width:84px;padding:8px 4px;font-size:18px}.food svg{width:52px;height:52px}
  .game{padding:18px 14px}
  #feedDino{height:200px}
  .bubble{right:-6px;font-size:18px}
  .btn-big{font-size:22px;padding:12px 24px}
  .card{height:400px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}