/* her-portfolio-v2 — product style.
   Role colours mean something everywhere on the page: blue = model, ink = code & rules, orange = human.
   Fonts: Geist (self-hosted, Latin & numbers) + the system Chinese face, so nothing loads from overseas. */
@font-face{font-family:"Geist";src:url("assets/fonts/Geist-Variable.woff2") format("woff2");font-weight:100 900;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2190-2199,U+2212,U+2215,U+2264-2265}
:root{
  --ink:#131722;--text:#3a4150;--muted:#5f6779;--line:#e6e8ee;--line2:#dfe3eb;--mist:#f6f7fa;
  --blue:#3150e6;--blue-soft:#eef1ff;--orange:#ff6a3d;--orange-text:#c2410c;--orange-soft:#fff3ee;--green:#15803d;--green-soft:#e9f7ef;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"Geist","PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --paper:#f6f7fa; /* used by agent-chat.css */
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--text);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3{margin:0;color:var(--ink);font-weight:600}
p,figure,dl,dd,ol,ul{margin:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
img{max-width:none}
.num{font-family:"Geist",var(--font);font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid rgb(49 80 230 / .45);outline-offset:3px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link:focus{position:fixed;left:16px;top:12px;width:auto;height:auto;clip:auto;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px}
[hidden]{display:none!important}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* logo mark */
.mark{width:30px;height:30px;flex:none}
.mark path{fill:none;stroke-width:7}
.mk-b{stroke:var(--blue)}.mk-k{stroke:var(--ink)}.mk-o{stroke:var(--orange)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:12px;font-size:15px;font-weight:500;white-space:nowrap;transition:background .2s,border-color .2s,transform .2s var(--ease)}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn:hover svg{transform:translateX(2px)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#272d3b}
.btn-blue{background:var(--blue);color:#fff;font-weight:600}.btn-blue:hover{background:#2541cc}
.btn-line{background:#fff;color:var(--ink);border:1px solid var(--line2)}.btn-line:hover{border-color:var(--ink)}
.btn-white{background:#fff;color:var(--ink);font-weight:600}.btn-white:hover{background:#eef0f5}
.btn-ghost{background:rgb(255 255 255 / .06);color:#fff;border:1px solid rgb(255 255 255 / .28)}.btn-ghost:hover{background:rgb(255 255 255 / .12)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.close{position:absolute;right:16px;top:14px;width:36px;height:36px;border-radius:50%;background:var(--mist);font-size:24px;line-height:1;color:var(--ink);z-index:2}
.close:hover{background:var(--line)}
.pill{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border-radius:10px;font-weight:600;font-size:14px;background:var(--mist);color:var(--ink)}
.pill.orange{background:var(--blue);color:#fff}

/* top bar */
.topbar{position:sticky;top:0;z-index:30;background:rgb(255 255 255 / .86);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid #eceef3}
.topbar-inner{display:flex;align-items:center;gap:32px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px;letter-spacing:.02em}
.nav{display:flex;gap:4px;margin-left:auto;font-size:14px}
.nav a{color:#5b6375;padding:8px 12px;border-radius:8px;transition:background .2s,color .2s}
.nav a:hover{color:var(--ink);background:var(--mist)}

/* entrance: one orchestrated sequence on load */
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.in{opacity:0;animation:rise 1s var(--ease) forwards;animation-delay:calc(var(--d,0) * 90ms + 60ms)}

/* hero */
.hero{position:relative;overflow:hidden;padding:96px 0 88px}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(#d9dde7 1px,transparent 1px);background-size:22px 22px;-webkit-mask-image:radial-gradient(ellipse 70% 60% at 72% 40%,#000 30%,transparent 75%);mask-image:radial-gradient(ellipse 70% 60% at 72% 40%,#000 30%,transparent 75%)}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(36px,-24px) scale(1.1)}}
@keyframes drift2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30px,20px) scale(1.06)}}
.glow{position:absolute;border-radius:50%;pointer-events:none;filter:blur(10px)}
.hero .glow-blue{width:540px;height:540px;right:2%;top:30px;background:radial-gradient(circle,rgb(49 80 230 / .2),rgb(49 80 230 / 0) 65%);animation:drift 16s ease-in-out infinite}
.hero .glow-orange{width:400px;height:400px;right:26%;top:320px;background:radial-gradient(circle,rgb(255 106 61 / .16),rgb(255 106 61 / 0) 65%);animation:drift2 18s ease-in-out infinite}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:64px;align-items:center}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgb(22 163 74 / .45)}70%{box-shadow:0 0 0 8px rgb(22 163 74 / 0)}100%{box-shadow:0 0 0 0 rgb(22 163 74 / 0)}}
.status{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;line-height:1.5}
.status i{width:8px;height:8px;border-radius:50%;background:#16a34a;flex:none;animation:pulse 2s infinite}
.hero h1{margin-top:26px;font-size:68px;line-height:1.08;letter-spacing:-.035em}
.lede{margin-top:24px;max-width:520px;font-size:18px;line-height:1.8;color:#4a5162}
.ask{position:relative;margin-top:32px;max-width:520px;display:flex;align-items:center;gap:10px;padding:6px 6px 6px 16px;border:1px solid var(--line2);border-radius:14px;background:#fff;box-shadow:0 10px 30px -18px rgb(19 23 34 / .28);transition:border-color .2s,box-shadow .2s}
.ask:focus-within{border-color:var(--blue);box-shadow:0 0 0 4px rgb(49 80 230 / .12),0 10px 30px -18px rgb(19 23 34 / .28)}
.ask-icon{width:18px;height:18px;flex:none;fill:none;stroke:var(--blue);stroke-width:1.6;stroke-linejoin:round}
.ask input{flex:1;min-width:0;height:40px;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink)}
.ask input::placeholder{color:#8a91a1}
.ask .btn{height:40px;border-radius:10px;padding:0 18px;font-size:14px}
.asks{margin-top:12px;max-width:540px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.asks span{margin-right:2px}
.asks button{padding:4px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:#4a5162;transition:border-color .2s,color .2s}
.asks button:hover{border-color:var(--blue);color:var(--blue)}
.hero-actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}

/* the trace: one refund, step by step, looping */
.trace{position:relative;border-radius:20px;border:1px solid #e3e6ee;background:rgb(255 255 255 / .92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);box-shadow:0 50px 100px -40px rgb(19 23 34 / .35),0 2px 8px rgb(19 23 34 / .05);overflow:hidden}
.trace-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid #eef0f4}
.dots{display:flex;gap:6px}.dots i{width:10px;height:10px;border-radius:50%;background:#e4e7ee}
.trace-title{font-size:13px;font-weight:500;color:var(--ink)}
.trace-tag{margin-left:auto;font-size:12px;color:var(--muted);background:#f3f5f9;padding:3px 8px;border-radius:6px;white-space:nowrap}
.trace-bar{height:2px;background:#f1f3f7}
.trace-bar span{display:block;height:2px;width:0;background:linear-gradient(90deg,var(--blue),var(--ink) 55%,var(--orange));animation:run 12s linear infinite}
@keyframes run{0%{width:0}62%,100%{width:100%}}
.trace-body{list-style:none;padding:22px 22px 18px;display:flex;flex-direction:column;gap:10px;min-height:452px}
.tr{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;font-size:14px;color:#1d2433;border:1px solid var(--line);background:#fff}
.tr b{flex:none;width:52px;font-size:12px;font-weight:600}
.tr em{margin-left:auto;flex:none;font-style:normal;font-size:14px;font-weight:600;color:var(--ink)}
.tr .pass{font-size:12px;color:#16a34a;background:#e9f7ef;padding:3px 8px;border-radius:6px}
.tr .ok{margin-left:auto;width:16px;height:16px;flex:none;fill:none;stroke:#16a34a;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.tr-model{background:var(--blue-soft);border-color:transparent}.tr-model b{color:var(--blue)}
.tr-code b{color:var(--ink)}
.tr-human{background:#fff6f2;border:1px dashed #ffb59c;color:#6b3a24}.tr-human b{color:var(--orange-text)}
.tr-user,.tr-reply{border:0;background:none;padding:0}
.tr-user{align-self:flex-start;align-items:flex-end;gap:8px}
.tr-user .who{width:28px;height:28px;border-radius:50%;background:#f3f5f9;display:grid;place-items:center;font-size:12px;color:#5b6375}
.tr-user .msg{padding:10px 14px;border-radius:14px 14px 14px 4px;background:#f3f5f9;font-size:14.5px;color:var(--ink)}
.tr-reply{align-self:flex-end;margin-top:6px}
.tr-reply .msg{padding:10px 14px;border-radius:14px 14px 4px 14px;background:var(--blue);color:#fff;font-size:14.5px}
@keyframes caret{50%{opacity:0}}
.caret{display:inline-block;width:2px;height:15px;margin-left:3px;vertical-align:-2px;background:rgb(255 255 255 / .8);animation:caret 1s steps(1) infinite}
@keyframes k1{0%,2%{opacity:0;transform:translateY(10px)}6%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
@keyframes k2{0%,10%{opacity:0;transform:translateY(10px)}14%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
@keyframes k3{0%,18%{opacity:0;transform:translateY(10px)}22%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
@keyframes k4{0%,26%{opacity:0;transform:translateY(10px)}30%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
@keyframes k5{0%,34%{opacity:0;transform:translateY(10px)}38%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
@keyframes k6{0%,42%{opacity:0;transform:translateY(10px)}46%,90%{opacity:.7;transform:none}96%,100%{opacity:0}}
@keyframes k7{0%,50%{opacity:0;transform:translateY(10px)}54%,90%{opacity:1;transform:none}96%,100%{opacity:0}}
.t1{animation:k1 12s var(--ease) infinite both}.t2{animation:k2 12s var(--ease) infinite both}.t3{animation:k3 12s var(--ease) infinite both}.t4{animation:k4 12s var(--ease) infinite both}.t5{animation:k5 12s var(--ease) infinite both}.t6{animation:k6 12s var(--ease) infinite both}.t7{animation:k7 12s var(--ease) infinite both}
.trace.paused *,.cta.paused *{animation-play-state:paused}
.trace-legend{display:flex;gap:16px;flex-wrap:wrap;padding:12px 18px;border-top:1px solid #eef0f4;font-size:12px;color:var(--muted)}
.trace-legend>span{display:inline-flex;align-items:center;gap:6px}
.sw{width:8px;height:8px;border-radius:2px}.sw-model{background:var(--blue)}.sw-code{background:var(--ink)}.sw-human{background:var(--orange)}

/* key numbers */
.metrics{border-top:1px solid #eef0f4;border-bottom:1px solid #eef0f4;background:#fbfcfd}
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.metrics-grid div{display:flex;flex-direction:column-reverse;gap:6px;padding:36px 24px}
.metrics-grid div:first-child{padding-left:0}
.metrics-grid div+div{border-left:1px solid #eef0f4}
.metrics-grid dt{font-size:14px;color:var(--muted)}
.metrics-grid dd{font-size:44px;line-height:1.1;font-weight:600;letter-spacing:-.03em;color:var(--ink)}

/* section heads */
.work h2,.cases h2,.exp h2{font-size:44px;line-height:1.2;letter-spacing:-.03em}
.sub{margin-top:16px;max-width:620px;font-size:17px;line-height:1.8;color:var(--muted)}

/* how I work */
.work{padding:120px 0 104px}
.roles{margin-top:56px;display:grid;grid-template-columns:minmax(0,1fr) 48px minmax(0,1fr) 48px minmax(0,1fr)}
.role{border-radius:22px;border:1px solid var(--line);padding:28px;transition:transform .4s var(--ease),box-shadow .4s}
.role:hover{transform:translateY(-4px);box-shadow:0 30px 60px -30px rgb(19 23 34 / .25)}
.role-model{background:linear-gradient(180deg,#f3f5ff,#fff 46%)}
.role-code{background:linear-gradient(180deg,#f3f4f6,#fff 46%)}
.role-human{background:linear-gradient(180deg,#fff3ee,#fff 46%)}
.role-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center}
.role-icon svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.role-model .role-icon{background:var(--blue)}.role-model .role-icon svg{fill:#fff;stroke:none}
.role-code .role-icon{background:var(--ink)}
.role-human .role-icon{background:var(--orange)}
.role h3{margin-top:20px;font-size:21px}
.role-job{margin-top:6px;font-size:15px;font-weight:500}
.role-model .role-job{color:var(--blue)}.role-code .role-job{color:var(--ink)}.role-human .role-job{color:var(--orange-text)}
.role p:not(.role-job):not(.role-eg){margin-top:16px;font-size:15px;line-height:1.8;color:var(--muted)}
.role-eg{margin-top:18px;padding-top:16px;border-top:1px solid #e9ecf3;font-size:13.5px;line-height:1.7;color:var(--muted)}
@keyframes dash{to{background-position:24px 0}}
.handoff{display:flex;align-items:center}
.handoff span,.flow{display:block;width:100%;height:2px;background-image:linear-gradient(90deg,#aab6f5 50%,transparent 50%);background-size:12px 2px;background-repeat:repeat-x;animation:dash .9s linear infinite}
.principles{list-style:none;padding:0;margin-top:40px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.principles li{padding:22px;font-size:13.5px;line-height:1.7;color:var(--muted)}
.principles li+li{border-left:1px solid #eef0f4}
.principles b{display:block;margin-bottom:6px;font-size:15px;font-weight:600;color:var(--ink)}

/* cases */
.cases{padding:104px 0;background:var(--mist)}
.bento{margin-top:48px;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
.span7{grid-column:span 7}.span5{grid-column:span 5}.span4{grid-column:span 4}.span12{grid-column:span 12}
.case{display:flex;flex-direction:column;text-align:left;border-radius:24px;border:1px solid var(--line);background:#fff;overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s,border-color .4s}
.case:hover{transform:translateY(-4px);box-shadow:0 30px 60px -30px rgb(19 23 34 / .28);border-color:#d5d9e2}
.case-text{display:block}
.tag{display:inline-block;font-size:12.5px;font-weight:500;line-height:1.5;padding:4px 10px;border-radius:999px;background:#f1f3f7;color:#5b6375}
.tag-real{background:var(--green-soft);color:var(--green)}
.case-title{display:block;margin-top:16px;font-size:26px;font-weight:600;letter-spacing:-.02em;color:var(--ink);line-height:1.3}
.case-desc{display:block;margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted)}
.case-nums{display:flex;gap:36px;margin-top:20px;font-size:13px;color:var(--muted)}
.case-nums>span{display:flex;flex-direction:column}
.case-nums b{font-size:24px;font-weight:600;color:var(--ink);line-height:1.3}
.case-lg .case-text{padding:32px 32px 0}
.case-media{position:relative;display:block;overflow:hidden}
.case-lg .case-media{margin-top:28px;flex:1;min-height:270px}
.media-green{background:linear-gradient(180deg,#fff,#eef6f1)}.media-blue{background:linear-gradient(180deg,#fff,#eef1ff)}.media-sand{background:linear-gradient(180deg,#fff,#fbf3e2)}
.shot{position:absolute;left:32px;top:0;width:118%;height:auto;border-radius:12px 12px 0 0;border:1px solid #e3e6ee;box-shadow:0 20px 40px -24px rgb(19 23 34 / .3);transition:transform .6s var(--ease)}
.shot.wide{width:150%}
.case:hover .shot{transform:translateY(-6px)}
.case-sm .case-media{height:200px;flex:none}
.case-sm .shot{left:24px;top:24px;border-radius:10px}
.case-sm .case-text{padding:24px 26px 28px;border-top:1px solid #eef0f4;flex:1}
.case-sm .case-title{margin-top:14px;font-size:19px}
.case-sm .case-desc{margin-top:8px;font-size:14px;line-height:1.75}
.case-strip{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);align-items:center;gap:32px;padding:32px}
.case-strip .case-title{margin-top:14px;font-size:22px}
.case-strip .case-desc{margin-top:8px;font-size:14.5px;line-height:1.75}
.chain{display:flex;align-items:center}
.link{flex:none;padding:10px 14px;border-radius:12px;font-size:13.5px;color:#1d2433;border:1px solid var(--line)}
.link b{font-weight:600;margin-right:6px}
.l-model{background:var(--blue-soft);border-color:transparent}.l-model b{color:var(--blue)}
.l-human{background:var(--orange-soft);border-color:transparent}.l-human b{color:var(--orange-text)}
.chain .flow{flex:1;min-width:20px;width:auto}

/* experience */
.exp{padding:120px 0 104px}
.exp-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:24px 48px}
.exp-head{align-self:start;position:sticky;top:110px}
.timeline{list-style:none;padding:0}
.timeline li{display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;padding:28px 0;border-top:1px solid var(--line)}
.timeline li:last-child{border-bottom:1px solid var(--line)}
.tl-when{font-size:13.5px;color:var(--muted)}
.tl-when b{display:block;margin-bottom:4px;font-size:16px;font-weight:600;color:var(--ink)}
.tl-body h3{font-size:20px}
.tl-body p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--muted)}
.tl-body .tl-nums{display:flex;gap:32px;margin-top:16px;font-size:13px}
.tl-nums span{display:flex;flex-direction:column}
.tl-nums b{font-size:22px;font-weight:600;color:var(--ink)}
.stack{grid-column:2;margin-top:16px;padding:20px 28px;border-radius:18px;background:var(--mist)}
.stack div{display:grid;grid-template-columns:120px minmax(0,1fr);gap:16px;padding:10px 0}
.stack div+div{border-top:1px solid #e6e9ef}
.stack dt{font-size:14px;font-weight:600;color:var(--ink)}
.stack dd{font-size:14.5px;color:var(--muted)}

/* contact */
.contact{padding:0 0 104px}
.cta{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:48px;border-radius:32px;background:var(--ink);padding:72px 64px;color:#fff}
.cta .glow-blue{width:460px;height:460px;right:-80px;top:-160px;background:radial-gradient(circle,rgb(49 80 230 / .55),rgb(49 80 230 / 0) 65%);animation:drift 16s ease-in-out infinite}
.cta .glow-orange{width:360px;height:360px;right:220px;bottom:-200px;background:radial-gradient(circle,rgb(255 106 61 / .38),rgb(255 106 61 / 0) 65%);animation:drift2 18s ease-in-out infinite}
.cta-copy{position:relative;max-width:620px}
.cta h2{font-size:48px;line-height:1.15;letter-spacing:-.03em;color:#fff}
.cta-copy>p{margin-top:18px;font-size:17px;line-height:1.8;color:#c5cad6}
.cta-actions{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn{height:46px;padding:0 22px}
.copy-row{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.copy-chip{display:inline-flex;align-items:center;gap:10px;padding:8px 12px;border-radius:10px;border:1px solid rgb(255 255 255 / .18);font-size:13px;color:#9aa3b7;transition:border-color .2s,background .2s}
.copy-chip .num{font-size:14px;color:#e8ebf2}
.copy-chip:hover{border-color:rgb(255 255 255 / .4);background:rgb(255 255 255 / .05)}
.qr{position:relative;flex:none;background:#fff;border-radius:18px;padding:14px 14px 10px;text-align:center}
.qr img{display:block;width:148px;height:auto}
.qr figcaption{margin-top:6px;font-size:12.5px;color:var(--muted)}
.footer{position:relative;display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-top:28px;padding-bottom:40px;font-size:13.5px;color:var(--muted)}
.footer::before{content:'';position:absolute;top:0;left:32px;right:32px;border-top:1px solid #eef0f4}
.footer .mark{width:22px;height:22px}
.footer a{margin-left:auto}
.footer a:hover{color:var(--ink)}

/* project dialog */
dialog{border:0;padding:0;border-radius:22px;background:#fff;color:var(--text);width:min(880px,calc(100vw - 32px));max-height:88svh;overflow:auto;box-shadow:0 40px 100px rgb(19 23 34 / .35)}
dialog::backdrop{background:rgb(19 23 34 / .5);backdrop-filter:blur(6px)}
dialog[open]{animation:pop .35s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.dialog-content{padding:48px 44px 36px}
.detail-type{font-size:13px;color:var(--muted);margin-bottom:10px}
.dialog-content h2{font-size:32px;line-height:1.3;letter-spacing:-.02em;padding-right:40px}
.detail-description{font-size:16px;line-height:1.85;color:var(--muted);margin:14px 0 24px}
.detail-stats{display:flex;flex-wrap:wrap;gap:14px 40px;padding:18px 0 22px;border-top:1px solid var(--line)}
.detail-stats div{display:grid;gap:2px}
.detail-stats strong{font-family:"Geist",var(--font);font-size:26px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.detail-stats span{font-size:12.5px;color:var(--muted)}
.detail-section{border-top:1px solid var(--line);padding-top:20px;margin-top:22px}
.detail-section h3{font-size:16px;margin-bottom:8px}
.detail-section p,.detail-section li{font-size:14.5px;line-height:1.85;color:var(--text)}
.detail-section ul{padding-left:20px}
.detail-note{font-size:13px;line-height:1.8;color:var(--muted);margin-top:24px;padding-left:12px;border-left:3px solid var(--line2)}
.detail-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:28px;padding-top:22px}
.detail-nav{display:flex;gap:8px}
.project-media{display:grid;gap:20px;margin:24px 0 8px}
.project-media figure{margin:0;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--mist)}
.project-media img{display:block;width:100%;height:auto;max-width:100%}
.project-media a{display:block}
.project-media video{display:block;width:100%;max-height:520px;background:#000}
.project-media figcaption{font-size:13px;line-height:1.7;color:var(--muted);padding:10px 14px;background:#fff;border-top:1px solid var(--line)}
.project-media figure.is-narrow{margin-left:auto;margin-right:auto}
.phone-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}
.project-media figure.is-phone{background:var(--ink);border-color:var(--ink);border-radius:22px;padding:6px}
.project-media figure.is-phone img{border-radius:16px}
.project-media figure.is-phone figcaption{background:transparent;border:0;color:#d7dbe2;padding:10px 6px 4px;font-size:12px}
.project-media figure.is-phone-video{max-width:360px;justify-self:center}
.project-media figure.is-phone-video video{max-height:none}
.media-error{font-size:13px;padding:18px;color:var(--orange-text)}

/* toast + floating Agent button (appears once the hero is out of view) */
.toast{position:fixed;left:50%;bottom:28px;z-index:100;transform:translate(-50%,16px);opacity:0;pointer-events:none;background:var(--ink);color:#fff;font-size:14px;padding:11px 18px;border-radius:12px;transition:opacity .25s,transform .25s var(--ease);max-width:90vw;text-align:center}
.toast.visible{opacity:1;transform:translate(-50%,0)}
.agent-launcher{opacity:0;pointer-events:none;transform:translateY(10px)}
.scrolled .agent-launcher{opacity:1;pointer-events:auto;transform:none}

/* responsive */
@media(max-width:1020px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:48px}
  .trace{max-width:600px}
  .roles{grid-template-columns:minmax(0,1fr);gap:16px}
  .handoff{display:none}
  .principles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .principles li:nth-child(3){border-left:0}
  .principles li:nth-child(n+3){border-top:1px solid #eef0f4}
  .span7,.span5,.span4{grid-column:span 12}
  .case-strip{grid-template-columns:minmax(0,1fr)}
  .exp-grid{grid-template-columns:minmax(0,1fr)}
  .exp-head{position:static}
  .stack{grid-column:auto}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics-grid div:nth-child(3){padding-left:0;border-left:0}
  .metrics-grid div:nth-child(n+3){border-top:1px solid #eef0f4}
}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .footer::before{left:16px;right:16px}
  .topbar-inner{gap:12px}
  .nav{display:none}
  .topbar .btn{margin-left:auto}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:44px;margin-top:20px}
  .lede{font-size:16px}
  .ask input{font-size:14px}
  .trace-body{min-height:0;padding:16px}
  .tr{font-size:13px;padding:10px 12px;gap:10px}
  .tr b{width:40px}
  .trace-title{font-size:12px}
  .metrics-grid div{padding:24px 0 24px 16px}
  .metrics-grid div:nth-child(odd){padding-left:0}
  .metrics-grid dd{font-size:28px}
  .work,.exp{padding:72px 0}
  .cases{padding:72px 0}
  .work h2,.cases h2,.exp h2{font-size:32px}
  .sub{font-size:15.5px}
  .principles{grid-template-columns:minmax(0,1fr)}
  .principles li+li{border-left:0;border-top:1px solid #eef0f4}
  .case-lg .case-text{padding:24px 24px 0}
  .case-title{font-size:22px}
  .case-lg .case-media{min-height:200px}
  .case-strip{padding:24px}
  .chain{flex-wrap:wrap;gap:8px}.chain .flow{display:none}
  .timeline li{grid-template-columns:minmax(0,1fr);gap:6px}
  .stack{padding:16px 18px}.stack div{grid-template-columns:minmax(0,1fr);gap:2px}
  .contact{padding-bottom:64px}
  .cta{flex-direction:column;align-items:flex-start;padding:44px 24px;border-radius:24px}
  .cta h2{font-size:34px}
  .qr{display:none}
  .dialog-content{padding:52px 20px 24px}
  .dialog-content h2{font-size:25px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .in{opacity:1}
}