/* ============================================================
   Nat Lin Portfolio — Design System
   Direction: A+B blend · warm · simple · bright
   Inter + Noto Sans TC · navy/blue palette · light default + dark
   ============================================================ */

:root{
  /* warm bright surfaces */
  --bg:#FAF8F4;
  --bg-2:#F3EFE7;
  --surface:#FFFFFF;
  --surface-2:#FBF9F5;
  /* ink */
  --navy:#0A2540;
  --text:#15314F;
  --text-2:#5B6675;
  --muted:#9AA6B2;
  /* lines */
  --line:#EAE3D7;
  --line-soft:#F0EBE1;
  --hr:#15314F;
  /* accent */
  --accent:#005BAC;
  --accent-2:#3D86D6;
  --accent-soft:#EAF2FF;
  --accent-ink:#005BAC;
  /* misc */
  --ok:#22A06B;
  --ok-soft:#ECF6EF;
  --radius:20px;
  --radius-sm:14px;
  --radius-lg:28px;
  --shadow-sm:0 1px 2px rgba(20,40,70,.05);
  --shadow:0 18px 44px rgba(20,40,70,.10);
  --shadow-lg:0 30px 70px rgba(20,40,70,.14);
  --maxw:1200px;
  --pad:clamp(20px,5vw,64px);
  --font:'Inter','Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;
  --glass:rgba(250,248,244,.78);
}

[data-theme="dark"]{
  --bg:#0E1620;
  --bg-2:#0A111A;
  --surface:#16212E;
  --surface-2:#1A2734;
  --navy:#0A2540;
  --text:#EEF3F9;
  --text-2:#A7B4C3;
  --muted:#6E7F93;
  --line:#26333F;
  --line-soft:#1D2935;
  --hr:#33424F;
  --accent:#4D97E4;
  --accent-2:#7FB6F0;
  --accent-soft:rgba(77,151,228,.14);
  --accent-ink:#7FB6F0;
  --ok:#3FBE86;
  --ok-soft:rgba(63,190,134,.14);
  --glass:rgba(14,22,32,.78);
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow:0 18px 44px rgba(0,0,0,.4);
  --shadow-lg:0 30px 70px rgba(0,0,0,.5);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  transition:background .35s ease,color .35s ease;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--accent-soft);color:var(--accent-ink);}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);}
.section{padding:clamp(56px,8vw,104px) 0;}
.eyebrow{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-ink);font-weight:700;}
.lead{font-size:clamp(16px,1.4vw,18px);color:var(--text-2);line-height:1.75;}

.sec-head{border-top:1.5px solid var(--hr);padding-top:22px;display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px;}
.sec-head .l{display:flex;flex-direction:column;gap:6px;}
.sec-head h2{font-size:clamp(28px,3.4vw,44px);font-weight:800;letter-spacing:-.03em;line-height:1.05;}
.sec-head .kicker{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700;}
.sec-head .r{font-size:14.5px;color:var(--text-2);max-width:420px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;border-radius:999px;padding:14px 26px;font-weight:700;font-size:15px;font-family:inherit;cursor:pointer;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s;}
.btn.fill{background:var(--navy);color:#fff;}
[data-theme="dark"] .btn.fill{background:var(--accent);}
.btn.fill:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.btn.accent{background:var(--accent);color:#fff;}
.btn.accent:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,91,172,.28);}
.btn.ghost{background:var(--surface);border-color:var(--line);color:var(--text);}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent-ink);transform:translateY(-2px);}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:var(--glass);backdrop-filter:blur(18px);border-bottom:1px solid var(--line-soft);transition:background .35s,border-color .35s;}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:16px var(--pad);display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:-.01em;}
.brand .mark{width:34px;height:34px;border-radius:11px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;}
[data-theme="dark"] .brand .mark{background:var(--accent);}
.brand b{font-weight:800;white-space:nowrap;}
.brand b span{color:var(--accent-ink);}
.nav-menu{display:flex;gap:6px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px;box-shadow:var(--shadow-sm);}
.nav-menu a{font-size:14px;color:var(--text-2);font-weight:600;padding:8px 15px;border-radius:999px;transition:.18s;}
.nav-menu a:hover{color:var(--text);background:var(--bg-2);}
.nav-right{display:flex;align-items:center;gap:10px;}
.theme-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:.2s;}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent-ink);transform:rotate(-12deg);}
.nav-burger{display:none;width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--text);}

/* ---------- hero ---------- */
.hero{padding:clamp(48px,7vw,92px) 0 clamp(40px,5vw,64px);}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:clamp(32px,5vw,64px);align-items:center;}
.status-pill{display:inline-flex;align-items:center;gap:9px;white-space:nowrap;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 16px 7px 11px;font-size:13.5px;font-weight:600;color:var(--text-2);margin-bottom:26px;box-shadow:var(--shadow-sm);}
.status-pill .dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px var(--ok-soft);}
.hero h1{font-size:clamp(46px,6.6vw,82px);line-height:.99;letter-spacing:-.035em;font-weight:800;color:var(--text);}
.hero h1 .muted{color:var(--muted);font-weight:600;}
.hero h1 mark,.hero .sub mark{background:linear-gradient(transparent 58%,var(--accent-soft) 58%);color:inherit;padding:0 .04em;border-radius:2px;}
.hero .sub{font-size:clamp(16px,1.5vw,19px);color:var(--text-2);line-height:1.75;max-width:560px;margin-top:30px;}
.hero-cta{display:flex;gap:13px;margin-top:38px;flex-wrap:wrap;}

/* hero visual collage */
.hero-visual{position:relative;height:clamp(400px,42vw,480px);}
.phone{position:absolute;border-radius:34px;background:var(--navy);padding:9px;box-shadow:var(--shadow-lg);}
[data-theme="dark"] .phone{background:#000;border:1px solid var(--line);}
.phone img{width:100%;height:100%;object-fit:cover;border-radius:26px;}
.hero-visual .phone{top:50%;left:54%;transform:translate(-50%,-50%);width:208px;height:404px;}

/* hero work carousel — crossfading card deck */
.hero-carousel{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(420px,86%);aspect-ratio:4/3.35;}
.hcard{position:absolute;inset:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;opacity:0;transform:scale(.96) translateY(10px);transition:opacity .6s ease,transform .6s cubic-bezier(.16,.8,.3,1);pointer-events:none;}
.hcard.on{opacity:1;transform:none;pointer-events:auto;z-index:2;}
.hcard-img{flex:1;min-height:0;overflow:hidden;background:var(--bg-2);display:flex;align-items:center;justify-content:center;}
.hcard-img img{width:100%;height:100%;object-fit:cover;object-position:top;}
.hcard-img.contain img{object-fit:contain;padding:14px;}
.hcard-body{padding:18px 22px 20px;border-top:1px solid var(--line-soft);}
.hcard-cat{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-ink);font-weight:700;}
.hcard-title{font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--text);margin:6px 0 8px;}
.hcard-go{font-size:13.5px;font-weight:700;color:var(--text-2);transition:.2s;}
.hcard:hover .hcard-go{color:var(--accent-ink);}
.hero-dots{position:absolute;left:50%;bottom:-30px;transform:translateX(-50%);display:flex;gap:8px;z-index:5;}
.hero-dots button{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:var(--line);cursor:pointer;transition:.25s;}
.hero-dots button.on{background:var(--accent);width:24px;border-radius:4px;}
.float-card{position:absolute;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:15px 18px;box-shadow:var(--shadow);}
.float-card .k{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700;}
.float-card b{display:block;font-size:28px;font-weight:800;color:var(--text);letter-spacing:-.02em;margin-top:2px;}
.float-card span{font-size:12.5px;color:var(--text-2);}
.float-card.tl{top:4px;left:-6px;transform:rotate(-4deg);z-index:2;}
.float-card.br{bottom:18px;right:0;display:flex;align-items:center;gap:11px;}
.float-card.br .ic{width:34px;height:34px;border-radius:10px;background:var(--accent-soft);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;}
.float-card.br .t b{font-size:15px;margin:0;}
.float-card.br .t span{font-size:12px;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);}
.card.pad{padding:clamp(26px,3vw,40px);}
.about-grid p{color:var(--text-2);font-size:16.5px;margin-bottom:16px;}
.tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px;}
.tag{font-size:13px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);border-radius:999px;padding:6px 14px;}
.tag.soft{color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);}
.do-list{display:grid;gap:2px;}
.do-item{padding:18px 0;border-bottom:1px solid var(--line-soft);}
.do-item:last-child{border-bottom:0;}
.do-item h4{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px;}
.do-item h4 .n{font-size:12px;color:var(--muted);font-weight:700;font-variant-numeric:tabular-nums;}
.do-item p{font-size:14.5px;color:var(--text-2);margin-top:6px;margin-bottom:0;}

/* ---------- experience timeline ---------- */
.timeline{display:grid;gap:0;}
.tl-item{display:grid;grid-template-columns:170px 1fr;gap:28px;padding:28px 0;border-bottom:1px solid var(--line-soft);}
.tl-item:last-child{border-bottom:0;}
.tl-item .yr{font-weight:800;color:var(--accent-ink);font-size:15px;font-variant-numeric:tabular-nums;}
.tl-item .yr small{display:block;color:var(--muted);font-weight:600;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;margin-top:4px;}
.tl-item h3{font-size:22px;font-weight:800;letter-spacing:-.01em;}
.tl-item .role{font-size:14px;color:var(--accent-ink);font-weight:700;margin:3px 0 8px;}
.tl-item p{color:var(--text-2);font-size:15.5px;}

/* ---------- featured projects (editorial rows + warm thumb) ---------- */
.work-list{display:grid;gap:18px;}
.work{display:grid;grid-template-columns:64px 1fr 340px;gap:clamp(20px,3vw,40px);align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(22px,2.6vw,34px);box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s;}
.work:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line);}
.work .num{font-size:22px;font-weight:800;color:var(--muted);font-variant-numeric:tabular-nums;}
.work .cat{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);font-weight:700;margin-bottom:10px;}
.work h3{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.025em;line-height:1.05;}
.work h3 em{font-style:normal;color:var(--muted);font-weight:600;font-size:.5em;margin-left:14px;letter-spacing:0;}
.work .desc{font-size:15.5px;color:var(--text-2);margin-top:12px;max-width:560px;}
.work .more{margin-top:18px;font-size:14.5px;font-weight:700;color:var(--accent-ink);display:inline-flex;align-items:center;gap:7px;transition:gap .2s;}
.work:hover .more{gap:12px;}
.work-thumb{height:200px;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.work-thumb img{width:100%;height:100%;object-fit:cover;}
.work-thumb.contain{background:var(--bg-2);}
.work-thumb.contain img{object-fit:contain;height:90%;width:auto;padding:10px;}

/* ---------- generic cards grid ---------- */
.grid{display:grid;gap:20px;}
.grid.c3{grid-template-columns:repeat(3,1fr);}
.grid.c2{grid-template-columns:repeat(2,1fr);}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.feature .fimg{height:200px;background:var(--bg-2);overflow:hidden;display:flex;align-items:center;justify-content:center;}
.feature .fimg img{width:100%;height:100%;object-fit:cover;}
.feature .fimg.contain img{object-fit:contain;height:88%;width:auto;}
.feature .fbody{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.feature .cat{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-ink);}
.feature h3{font-size:21px;font-weight:800;margin:9px 0 8px;letter-spacing:-.01em;}
.feature p{font-size:14.5px;color:var(--text-2);margin-bottom:14px;}

/* ---------- carousel ---------- */
.carousel{position:relative;}
.carousel-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
.carousel-track::-webkit-scrollbar{display:none;}
.carousel-slide{flex:0 0 auto;scroll-snap-align:start;}
.carousel-banner .carousel-slide{width:min(620px,82%);}
.carousel-banner img{width:100%;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-sm);cursor:zoom-in;}
.carousel-nav{display:flex;gap:9px;margin-top:18px;align-items:center;}
.cbtn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;font-size:17px;display:flex;align-items:center;justify-content:center;transition:.2s;}
.cbtn:hover{border-color:var(--accent);color:var(--accent-ink);}
.cbtn:disabled{opacity:.35;cursor:default;}
.cdots{display:flex;gap:7px;margin-left:6px;}
.cdot{width:8px;height:8px;border-radius:50%;background:var(--line);border:0;padding:0;cursor:pointer;transition:.2s;}
.cdot.on{background:var(--accent);width:22px;border-radius:5px;}

/* ---------- gallery (lightbox grid) ---------- */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;}
.gallery img{width:100%;height:220px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);cursor:zoom-in;transition:transform .25s,box-shadow .25s;}
.gallery img:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.gallery img.contain{object-fit:contain;background:var(--surface-2);padding:12px;}

/* split blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;}

/* web frame (campaign sites) */
.web-frame{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm);}
.web-frame .bar{display:flex;align-items:center;gap:7px;padding:10px 14px;border-bottom:1px solid var(--line-soft);background:var(--bg-2);}
.web-frame .bar i{width:10px;height:10px;border-radius:50%;background:var(--line);display:block;flex:0 0 auto;}
.web-frame .bar .url{margin-left:8px;font-size:11.5px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:4px 12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.web-frame .shot{max-height:430px;overflow:hidden;background:var(--surface-2);}
.web-frame .shot img{width:100%;display:block;cursor:zoom-in;}

/* financial card feature (key project) */
.cards-feature{display:grid;gap:22px;}
.card-row{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,52px);align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(20px,2.6vw,38px);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;}
.card-row:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.card-shot{border-radius:var(--radius);overflow:hidden;background:var(--bg-2);border:1px solid var(--line);padding:clamp(20px,3vw,34px);}
.card-shot img{width:100%;aspect-ratio:1.586/1;object-fit:cover;display:block;cursor:zoom-in;border-radius:12px;box-shadow:var(--shadow);}
.card-row.flip{grid-template-columns:.9fr 1.1fr;}
.card-row.flip .card-shot{order:2;}
.card-meta .idx{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);font-weight:700;}
.card-meta h3{font-size:clamp(23px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;margin:9px 0 4px;}
.card-meta .en{font-size:13.5px;color:var(--muted);font-weight:600;letter-spacing:.02em;margin-bottom:14px;}
.card-meta p{font-size:15.5px;color:var(--text-2);margin-bottom:20px;}
.pantone{display:flex;gap:16px;flex-wrap:wrap;}
.pantone .sw{display:flex;flex-direction:column;align-items:center;gap:8px;}
.pantone .chip{width:40px;height:40px;border-radius:11px;border:1px solid rgba(0,0,0,.1);box-shadow:var(--shadow-sm);}
.pantone .lab{font-size:10px;color:var(--muted);font-weight:600;letter-spacing:.02em;}
@media(max-width:980px){.card-row,.card-row.flip{grid-template-columns:1fr;}.card-row.flip .card-shot{order:-1;}.card-shot{order:-1;}}
.card-shot.portrait{display:flex;align-items:center;justify-content:center;}
.card-shot.portrait img{width:auto;aspect-ratio:auto;max-width:290px;max-height:460px;object-fit:contain;border-radius:14px;box-shadow:var(--shadow);}

/* TV / broadcast screen frame (queue machine) */
.tv-frame{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#0d1320;box-shadow:var(--shadow);padding:10px;}
.tv-frame .screen{border-radius:9px;overflow:hidden;background:#000;}
.tv-frame .screen img{width:100%;display:block;cursor:zoom-in;}
.tv-stand{width:120px;height:14px;margin:0 auto;background:linear-gradient(180deg,var(--line),transparent);border-radius:0 0 8px 8px;}
.tv-foot{width:180px;height:8px;margin:6px auto 0;background:var(--line);border-radius:6px;}
.queue-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:16px;}
.queue-thumbs img{width:100%;height:84px;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:var(--surface);cursor:zoom-in;transition:transform .2s,box-shadow .2s;}
.queue-thumbs img:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
@media(max-width:680px){.queue-thumbs{grid-template-columns:repeat(3,1fr);}}

/* print-pending placeholder */
.print-pending{display:flex;align-items:center;gap:18px;border:2px dashed var(--line);border-radius:var(--radius);padding:24px 26px;background:var(--surface-2);}
.print-pending .pp-ic{width:52px;height:52px;border-radius:14px;background:var(--accent-soft);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-size:24px;flex:0 0 auto;}
.print-pending b{display:block;font-size:16px;font-weight:800;color:var(--text);}
.print-pending span{font-size:14px;color:var(--text-2);}

/* 3D physical card simulation */
.card3d-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,40px);margin-bottom:30px;perspective:1400px;}
.card3d-cell{display:flex;flex-direction:column;align-items:center;gap:16px;}
.card3d-wrap{width:100%;perspective:1000px;}
.card3d{position:relative;width:100%;aspect-ratio:1.586;border-radius:16px;transform-style:preserve-3d;transition:transform .35s cubic-bezier(.16,.8,.3,1),box-shadow .35s;box-shadow:0 26px 44px -14px rgba(20,40,70,.42),0 8px 18px -6px rgba(20,40,70,.28);will-change:transform;}
.card3d::after{content:"";position:absolute;inset:0;border-radius:16px;box-shadow:inset 0 1px 1px rgba(255,255,255,.5),inset 0 0 0 1px rgba(0,0,0,.06);pointer-events:none;}
.card3d-face{position:absolute;inset:0;border-radius:16px;overflow:hidden;}
.card3d-face img{width:100%;height:100%;object-fit:cover;display:block;transform:scale(1.06);}
.card3d .sheen{position:absolute;inset:0;border-radius:16px;background:linear-gradient(110deg,transparent 25%,rgba(255,255,255,.55) 48%,transparent 62%);opacity:0;transition:opacity .35s;pointer-events:none;mix-blend-mode:soft-light;background-size:220% 220%;background-position:var(--sx,50%) var(--sy,0%);}
.card3d:hover .sheen{opacity:1;}
.card3d-label{text-align:center;}
.card3d-label b{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.card3d-label span{display:block;font-size:12.5px;color:var(--muted);font-weight:600;margin-top:2px;}
.card3d-hint{text-align:center;font-size:13px;color:var(--muted);margin:-8px 0 30px;}
@media(max-width:760px){.card3d-strip{grid-template-columns:1fr;max-width:380px;margin-left:auto;margin-right:auto;}}

/* HTC feature */
.htc{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(24px,3vw,40px);box-shadow:var(--shadow-sm);}
.htc-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);max-height:460px;background:var(--bg-2);}
.htc-img img{width:100%;height:100%;object-fit:cover;object-position:top;}

/* ---------- awards ---------- */
.awards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.award{display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;}
.award:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.award .medal{width:46px;height:46px;border-radius:13px;background:var(--accent-soft);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-size:20px;flex:0 0 auto;}
.award h4{font-size:18px;font-weight:800;}
.award .yr{font-size:12.5px;color:var(--muted);font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-top:2px;}
.award p{font-size:14px;color:var(--text-2);margin-top:8px;}

/* ---------- contact ---------- */
.contact{background:linear-gradient(150deg,var(--navy),#10395F);color:#fff;border-radius:var(--radius-lg);padding:clamp(40px,6vw,80px);text-align:center;position:relative;overflow:hidden;}
[data-theme="dark"] .contact{background:linear-gradient(150deg,#0c1a2c,#13334f);border:1px solid var(--line);}
.contact .glow{position:absolute;inset:0;background:radial-gradient(60% 90% at 50% 0%,rgba(0,91,172,.5),transparent 60%);pointer-events:none;}
.contact .eyebrow{color:var(--accent-2);position:relative;}
.contact h2{font-size:clamp(32px,5vw,56px);font-weight:800;letter-spacing:-.03em;margin:18px 0 16px;line-height:1.02;position:relative;}
.contact p{color:#CBDBEC;font-size:17px;max-width:520px;margin:0 auto;position:relative;}
.contact .btn-row{display:flex;gap:13px;justify-content:center;margin-top:34px;flex-wrap:wrap;position:relative;}
.contact .btn.fill{background:#fff;color:var(--navy);}
.contact .btn.ghost{background:transparent;border-color:rgba(255,255,255,.3);color:#fff;}

/* ---------- footer ---------- */
.footer{padding:48px var(--pad) 56px;border-top:1px solid var(--line-soft);}
.footer-in{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
.footer .fb{font-weight:800;font-size:17px;}
.footer .fb span{color:var(--accent-ink);}
.footer .fmeta{font-size:13.5px;color:var(--muted);}
.footer .flinks{display:flex;gap:18px;font-size:14px;color:var(--text-2);font-weight:600;}
.footer .flinks a:hover{color:var(--accent-ink);}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,14,22,.9);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;padding:40px;opacity:0;transition:opacity .25s;}
.lightbox.open{display:flex;opacity:1;}
.lightbox img{max-width:min(1120px,94vw);max-height:88vh;border-radius:14px;box-shadow:0 40px 120px rgba(0,0,0,.6);}
.lb-close,.lb-arrow{position:absolute;border:0;background:rgba(255,255,255,.12);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:.2s;}
.lb-close{top:24px;right:24px;width:46px;height:46px;font-size:22px;}
.lb-arrow{top:50%;transform:translateY(-50%);width:54px;height:54px;font-size:24px;}
.lb-arrow.prev{left:24px;}
.lb-arrow.next{right:24px;}
.lb-close:hover,.lb-arrow:hover{background:rgba(255,255,255,.24);}
.lb-count{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:#fff;font-size:13px;letter-spacing:.1em;background:rgba(255,255,255,.12);padding:7px 16px;border-radius:999px;}

/* ---------- scroll reveal ---------- */
.has-js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.16,.8,.3,1),transform .7s cubic-bezier(.16,.8,.3,1);}
.has-js .reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}
@media(prefers-reduced-motion:reduce){.has-js .reveal{opacity:1 !important;transform:none !important;transition:none !important;}html{scroll-behavior:auto;}}

/* ---------- case study ---------- */
.case-hero{background:linear-gradient(155deg,var(--navy),#10395F);color:#fff;position:relative;overflow:hidden;}
[data-theme="dark"] .case-hero{background:linear-gradient(155deg,#0c1a2c,#13334f);border-bottom:1px solid var(--line);}
.case-hero .glow{position:absolute;inset:0;background:radial-gradient(70% 90% at 80% 0%,rgba(0,91,172,.5),transparent 55%);}
.case-hero-in{position:relative;padding:clamp(40px,6vw,84px) 0 clamp(40px,5vw,64px);}
.case-back{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#BFD2E6;font-weight:600;margin-bottom:26px;}
.case-back:hover{color:#fff;}
.case-hero .eyebrow{color:var(--accent-2);}
.case-hero h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-.03em;font-weight:800;margin:16px 0 20px;}
.case-hero p{color:#CBDBEC;font-size:18px;max-width:680px;line-height:1.7;}
.case-hero .tags{margin-top:26px;}
.case-hero .tag{background:rgba(255,255,255,.12);color:#DCEAFB;}
.case-metabar{display:flex;gap:40px;flex-wrap:wrap;margin-top:34px;}
.case-metabar .m .k{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2);font-weight:700;}
.case-metabar .m .v{font-size:15px;color:#EAF2FB;font-weight:600;margin-top:5px;}

.case-body{display:grid;grid-template-columns:.28fr .72fr;gap:clamp(28px,4vw,56px);align-items:start;}
.toc{position:sticky;top:96px;display:grid;gap:2px;}
.toc a{display:block;padding:11px 14px;border-radius:11px;color:var(--text-2);font-size:14.5px;font-weight:600;transition:.18s;}
.toc a:hover,.toc a.active{background:var(--accent-soft);color:var(--accent-ink);}
.case-section{margin-bottom:clamp(40px,5vw,68px);scroll-margin-top:96px;}
.case-section .step{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);font-weight:700;margin-bottom:14px;}
.case-section .step .b{width:26px;height:26px;border-radius:8px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:13px;}
.case-section h2{font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.025em;margin-bottom:18px;}
.case-section p{color:var(--text-2);font-size:16.5px;margin-bottom:16px;}
.case-section ul{margin:0;padding-left:0;list-style:none;display:grid;gap:12px;}
.case-section ul li{position:relative;padding-left:30px;color:var(--text-2);font-size:16px;}
.case-section ul li::before{content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--accent);}
.callout{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius-sm);padding:22px 26px;margin:24px 0;box-shadow:var(--shadow-sm);}
.callout .q{font-size:18px;font-weight:700;color:var(--text);line-height:1.5;}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:8px 0 6px;}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);}
.metric b{display:block;font-size:34px;font-weight:800;letter-spacing:-.02em;color:var(--accent-ink);}
.metric span{font-size:13.5px;color:var(--text-2);}
.phone-row{display:flex;gap:22px;flex-wrap:wrap;}
.phone-row .phone{position:static;transform:none;width:230px;height:auto;aspect-ratio:9/19;}
.phone-row .phone img{height:100%;}
.phone-cap{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;font-weight:600;}
.slide-frame{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--surface);}
.slide-frame img{width:100%;cursor:zoom-in;}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero-grid,.about-grid,.split,.htc,.case-body{grid-template-columns:1fr;}
  .grid.c3{grid-template-columns:1fr 1fr;}
  .work{grid-template-columns:1fr;}
  .work .num{display:none;}
  .work-thumb{height:220px;order:-1;}
  .toc{position:static;display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px;}
  .hero-visual{order:-1;height:420px;}
  .case-metabar{gap:24px;}
}
@media(max-width:680px){
  .nav-menu{display:none;}
  .nav-burger{display:flex;align-items:center;justify-content:center;}
  .grid.c3,.grid.c2,.awards,.split,.metrics{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:1fr;gap:8px;}
  .gallery{grid-template-columns:1fr 1fr;}
  .gallery img{height:160px;}
}

/* mobile menu drawer */
.mobile-menu{display:none;position:fixed;inset:0;z-index:60;background:var(--bg);padding:80px var(--pad) 40px;flex-direction:column;gap:8px;}
.mobile-menu.open{display:flex;}
.mobile-menu a{font-size:22px;font-weight:700;padding:14px 0;border-bottom:1px solid var(--line-soft);}
.mobile-menu .mm-close{position:absolute;top:22px;right:var(--pad);width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);font-size:20px;cursor:pointer;color:var(--text);}