:root{
    --ink:#0e1535;          /* deep navy (from Webbia palette) */
    --ink-2:#0a0f28;
    --cream:#f7f5f0;        /* warm paper */
    --cream-2:#ece9e0;
    --rust:#0f7a6e;         /* teal accent (light backgrounds) */
    --rust-soft:#13927f;    /* lighter teal — hover */
    --mint:#5ce8d0;         /* bright mint accent (dark backgrounds) */
    --slate:#4a4a4a;        /* ink-soft */
    --slate-light:#9a9a9a;  /* ink-faint */
    --line:rgba(14,21,53,.12);     /* hairline on cream */
    --line-dark:rgba(255,255,255,.10);
    --sans:'Archivo',system-ui,sans-serif;
    --serif:'Playfair Display',Georgia,serif;
    --mono:'JetBrains Mono',ui-monospace,monospace;
    --maxw:1280px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--sans);
    background:var(--cream);
    color:var(--ink);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  ::selection{background:var(--rust);color:#fff}
  /* ---------- shared bits ---------- */
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
  .label{
    font-family:var(--mono);
    font-size:11px;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--rust);
    display:inline-flex;
    align-items:center;
    gap:9px;
  }
  .label::before{content:"";width:18px;height:1px;background:var(--rust);display:inline-block}
  .label.dot::before{width:7px;height:7px;border-radius:50%;background:var(--rust)}
  .serif-em{font-family:var(--serif);font-style:italic;color:var(--rust);font-weight:600}
  .btn{
    display:inline-flex;align-items:center;gap:9px;
    font-family:var(--sans);font-weight:600;font-size:14px;
    padding:13px 22px;border-radius:40px;border:none;cursor:pointer;
    text-decoration:none;transition:transform .25s ease,background .25s ease;
  }
  .btn:hover{transform:translateY(-2px)}
  .btn-dark{background:var(--ink);color:#fff}
  .btn-rust{background:var(--rust);color:#fff}
  .btn-rust:hover{background:var(--rust-soft)}
  .btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
  /* ---------- nav ---------- */
  header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.82);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
  .brand{display:flex;align-items:center;gap:18px}
  .logo{display:flex;align-items:center;gap:7px;font-weight:800;font-size:20px;letter-spacing:-.02em}
  .logo .mark{
    width:22px;height:22px;border-radius:6px;
    background:var(--rust);color:#fff;display:grid;place-items:center;
    font-family:var(--serif);font-style:italic;font-size:15px;font-weight:700;
  }
  .brand .tag{border-left:1px solid var(--line);padding-left:18px;line-height:1.35}
  .brand .tag .t1{font-family:var(--mono);font-size:10px;letter-spacing:.18em;font-weight:700}
  .brand .tag .t2{font-family:var(--mono);font-size:9px;letter-spacing:.14em;color:var(--slate);display:flex;align-items:center;gap:6px}
  .brand .tag .t2::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--rust)}
  .navlinks{display:flex;align-items:center;gap:34px}
  .navlinks a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;opacity:.8;transition:opacity .2s}
  .navlinks a:hover{opacity:1}
  .nav-pill{background:#fff;border:1px solid var(--line);border-radius:40px;padding:9px 6px;display:flex;gap:0}
  .nav-pill a{padding:6px 16px;border-radius:30px}
  /* ---------- hero ---------- */
  .hero{
    background:
      radial-gradient(120% 90% at 90% 110%, rgba(92,232,208,.20), transparent 55%),
      radial-gradient(80% 60% at 10% -10%, rgba(92,232,208,.08), transparent 60%),
      var(--ink);
    color:var(--cream);position:relative;overflow:hidden;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(var(--line-dark) 1px,transparent 1px),linear-gradient(90deg,var(--line-dark) 1px,transparent 1px);
    background-size:64px 64px;opacity:.5;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 80%);
  }
  .hero-inner{position:relative;padding:70px 0 64px}
  .pill{
    display:inline-flex;align-items:center;gap:9px;
    border:1px solid var(--line-dark);border-radius:40px;padding:8px 16px;
    font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#c9cedb;
  }
  .pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(92,232,208,.25)}
  .pill b{color:var(--mint);font-weight:700}
  h1.hero-h{font-size:clamp(40px,7vw,86px);line-height:.98;font-weight:800;letter-spacing:-.03em;margin:26px 0 0;max-width:14ch}
  h1.hero-h .serif-em{font-size:.92em;display:inline-block;margin-top:.06em;color:var(--mint)}
  .hero p.lede{margin-top:26px;max-width:48ch;color:#b9c0cd;font-size:17px;line-height:1.6}
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:54px;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
  .stat{padding:26px 22px 24px;border-right:1px solid var(--line-dark)}
  .stat:last-child{border-right:none}
  .stat .n{font-family:var(--serif);font-size:46px;font-weight:700;line-height:1}
  .stat .k{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--slate-light);text-transform:uppercase;margin-top:14px;line-height:1.7}
  .scroll-ind{text-align:center;margin-top:30px;font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--slate-light)}
  .scroll-ind::after{content:"";display:block;width:1px;height:34px;background:linear-gradient(var(--slate-light),transparent);margin:12px auto 0}
  /* ---------- generic section ---------- */
  section{position:relative}
  .pad{padding:92px 0}
  .pad-lg{padding:120px 0}
  .center{text-align:center}
  h2.big{font-size:clamp(32px,5vw,56px);font-weight:800;letter-spacing:-.025em;line-height:1.02}
  .sub{color:var(--slate);font-size:16px;line-height:1.7;max-width:60ch}
  /* ---------- how we tell ---------- */
  .how .intro{max-width:62ch;margin:30px auto 0;color:var(--slate);font-size:16px;line-height:1.8}
  .how .intro b{color:var(--ink)}
  .how .inline-stats{display:flex;justify-content:center;flex-wrap:wrap;gap:0;margin:44px auto 0;background:var(--cream-2);border-radius:14px;max-width:680px;padding:6px}
  .ist{display:flex;align-items:center;gap:12px;padding:18px 26px;border-right:1px solid var(--line)}
  .ist:last-child{border-right:none}
  .ist .n{font-family:var(--serif);font-size:34px;font-weight:700}
  .ist .k{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);line-height:1.5}
  .cso{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:70px;border-top:1px solid var(--line)}
  .cso .col{padding:34px 30px 0;border-right:1px solid var(--line)}
  .cso .col:last-child{border-right:none}
  .cso .gn{font-family:var(--serif);font-size:30px;color:var(--line);font-weight:700}
  .cso h4{margin:18px 0 12px;font-size:18px;font-weight:700}
  .cso p{color:var(--slate);font-size:14px;line-height:1.7}
  .cso p b{color:var(--ink)}
  /* ---------- portfolio grid ---------- */
  .pf-legend{display:flex;align-items:center;gap:22px;flex-wrap:wrap;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}
  .pf-legend .lg{display:flex;align-items:center;gap:7px}
  .chip{font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:.08em;padding:3px 6px;border-radius:4px;text-transform:uppercase}
  .chip.ai{background:var(--rust);color:#fff}
  .chip.nda{background:var(--ink);color:#fff}
  .chip.mob{background:#cfe3df;color:var(--ink)}
  .pf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:34px;background:var(--line);border:1px solid var(--line)}
  .pf-card{background:var(--cream);padding:20px 18px 22px;cursor:pointer;transition:background .2s;position:relative;min-height:120px}
  .pf-card:hover{background:#fff}
  .pf-card .num{font-family:var(--mono);font-size:11px;color:var(--slate);letter-spacing:.1em}
  .pf-card .chips{display:flex;gap:5px;position:absolute;top:18px;right:16px}
  .pf-card h5{margin:14px 0 6px;font-size:16px;font-weight:700;letter-spacing:-.01em}
  .pf-card .d{font-size:12.5px;color:var(--slate);line-height:1.5}
  /* ---------- case study ---------- */
  .cs{padding:96px 0 70px;border-top:1px solid var(--line);position:relative}
  .cs:nth-of-type(even){background:var(--cream-2)}
  .ghost{position:absolute;top:64px;right:28px;font-family:var(--serif);font-style:italic;font-weight:700;font-size:clamp(80px,13vw,170px);color:rgba(14,21,53,.05);line-height:1;pointer-events:none;z-index:0}
  .cs-head{position:relative;z-index:1;max-width:760px}
  .cs-badge{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);border-radius:40px;padding:7px 14px;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--slate)}
  .cs-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--rust)}
  h3.cs-title{font-size:clamp(34px,5.5vw,58px);font-weight:800;letter-spacing:-.03em;margin:22px 0 0;line-height:1}
  h3.cs-title::after{content:"";display:block;width:54px;height:3px;background:var(--rust);margin-top:18px}
  .cs-tag{font-family:var(--serif);font-style:italic;font-size:22px;color:var(--ink);margin-top:18px;font-weight:500}
  .cs-meta{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin-top:18px}
  /* browser + phone mockups (CSS placeholders) */
  .mock{position:relative;z-index:1;margin-top:46px}
  .browser{border-radius:14px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(14,21,53,.35);background:#fff;border:1px solid var(--line)}
  .browser-bar{display:flex;align-items:center;gap:14px;padding:12px 16px;background:#efeae1;border-bottom:1px solid var(--line)}
  .dots{display:flex;gap:7px}
  .dots i{width:11px;height:11px;border-radius:50%;display:block}
  .dots i:nth-child(1){background:#ff5f57}.dots i:nth-child(2){background:#febc2e}.dots i:nth-child(3){background:#28c840}
  .url{flex:1;max-width:420px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:30px;text-align:center;padding:6px 14px;font-family:var(--mono);font-size:11px;color:var(--slate)}
  .browser-body{height:340px;display:grid;grid-template-columns:190px 1fr;background:#fbfaf7}
  .bb-side{background:#f4f1ec;border-right:1px solid var(--line);padding:16px 14px}
  .bb-side .tab{height:11px;background:#e2ddd3;border-radius:4px;margin-bottom:11px}
  .bb-side .tab.act{background:var(--rust);width:70%}
  .bb-side .tab.w1{width:80%}.bb-side .tab.w2{width:60%}.bb-side .tab.w3{width:90%}.bb-side .tab.w4{width:50%}
  .bb-main{padding:22px 24px}
  .bb-main .line{height:13px;background:#eae5db;border-radius:4px;margin-bottom:12px}
  .bb-main .line.t{width:42%;height:20px;background:#dcd5c8}
  .bb-main .grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
  .bb-main .box{height:96px;background:#f1ece3;border:1px solid var(--line);border-radius:8px}
  .thumbs{display:flex;gap:8px;justify-content:center;margin-top:18px;flex-wrap:wrap}
  .thumbs i{width:56px;height:34px;border-radius:5px;background:#e4ddd0;border:1px solid var(--line);display:block}
  .thumbs i.act{border-color:var(--rust);box-shadow:0 0 0 2px rgba(15,122,110,.3)}
  .phones{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:46px;position:relative;z-index:1}
  .phone{width:150px;height:308px;border-radius:24px;background:#0a0f28;padding:9px;box-shadow:0 30px 60px -25px rgba(14,21,53,.4)}
  .phone .screen{height:100%;border-radius:16px;background:linear-gradient(160deg,#0f7a6e,#0e1535);position:relative;overflow:hidden}
  .phone:nth-child(2) .screen{background:linear-gradient(160deg,#13a594,#0c5048)}
  .phone:nth-child(3) .screen{background:linear-gradient(160deg,#5ce8d0,#0f7a6e)}
  .phone:nth-child(4) .screen{background:linear-gradient(160deg,#1c2a5e,#0e1535)}
  .phone .notch{width:46px;height:6px;border-radius:6px;background:rgba(255,255,255,.6);margin:9px auto}
  .phone .ph-line{height:8px;border-radius:4px;background:rgba(255,255,255,.5);margin:7px 14px}
  .phone .ph-line.s{width:50%}
  .phone .ph-card{height:40px;border-radius:8px;background:rgba(255,255,255,.85);margin:12px 14px}
  /* challenge / solution */
  .cs-text{display:grid;grid-template-columns:1fr 1fr;gap:46px;margin-top:54px;position:relative;z-index:1}
  .cs-text .blk h6{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--rust);margin-bottom:14px;display:flex;align-items:center;gap:8px}
  .cs-text .blk h6::before{content:"";width:16px;height:1px;background:var(--rust)}
  .cs-text p{color:var(--slate);font-size:15px;line-height:1.8}
  .cs-text p b{color:var(--ink)}
  /* outcomes */
  .outcomes{margin-top:62px;position:relative;z-index:1}
  .out-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:22px}
  .out{padding:26px 22px 0}
  .out .n{font-family:var(--serif);font-size:42px;font-weight:700;color:var(--rust);line-height:1}
  .out .k{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin-top:12px;line-height:1.6}
  /* testimonial + reference */
  .ref-row{display:grid;grid-template-columns:1.1fr 1fr;gap:0;margin-top:58px;position:relative;z-index:1;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--cream)}
  .quote{padding:42px 40px;position:relative;border-right:1px solid var(--line)}
  .quote .qm{font-family:var(--serif);font-size:64px;color:var(--rust);line-height:.6;font-weight:700}
  .quote .ql{position:absolute;left:0;top:34px;bottom:34px;width:3px;background:var(--rust)}
  .quote blockquote{font-family:var(--serif);font-style:italic;font-size:18px;line-height:1.65;margin:22px 0 0;color:var(--ink)}
  .quote cite{display:block;margin-top:22px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--slate);font-style:normal}
  .refcard{padding:38px 36px}
  .refcard .rl{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--rust);margin-bottom:22px;display:flex;align-items:center;gap:8px}
  .refcard .rl::before{content:"";width:16px;height:1px;background:var(--rust)}
  .refcard .rrow{display:grid;grid-template-columns:78px 1fr;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
  .refcard .rrow:last-of-type{border-bottom:none}
  .refcard .rk{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);padding-top:2px}
  .refcard .rv{color:var(--ink);font-weight:500}
  .refcard .rv.link{color:var(--rust)}
  .refcard .req{margin:18px 0;color:var(--rust);font-size:13px;font-weight:600}
  /* gallery */
  .gallery{margin-top:64px;position:relative;z-index:1}
  .gal-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
  .gal-cat{display:flex;align-items:center;gap:14px}
  .gal-cat .bar{width:3px;height:22px;background:var(--rust)}
  .gal-cat strong{font-family:var(--serif);font-style:italic;font-size:22px;font-weight:600}
  .gal-cat .t{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);border:1px solid var(--line);border-radius:30px;padding:5px 11px}
  .gal-count{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate)}
  .gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
  .gal-grid .shot{aspect-ratio:16/10;border-radius:10px;background:linear-gradient(135deg,#efeae1,#e3dccf);border:1px solid var(--line);position:relative;overflow:hidden}
  .gal-grid .shot::after{content:"";position:absolute;inset:14px;border:1px dashed var(--line);border-radius:6px}
  .loadmore{display:flex;justify-content:center;margin-top:32px}
  /* next case */
  .nextcase{display:flex;align-items:center;justify-content:space-between;margin-top:64px;padding-top:30px;border-top:1px solid var(--line);position:relative;z-index:1}
  .nextcase .nx{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--rust)}
  .arrowbtn{width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:transparent;display:grid;place-items:center;cursor:pointer;font-size:18px;color:var(--ink);transition:.25s}
  .arrowbtn:hover{background:var(--ink);color:#fff;transform:translateX(3px)}
  /* ---------- why thewebbia (dark) ---------- */
  .why{background:
    radial-gradient(90% 70% at 100% 0%, rgba(92,232,208,.12), transparent 55%),
    var(--ink);color:var(--cream);padding:110px 0}
  .why .label{color:var(--mint)}.why .label::before{background:var(--mint)}
  .why h2{margin-top:24px;color:#fff;max-width:18ch}
  .why .sub{color:#aab2c1;margin-top:24px}
  .why-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:70px;border-top:1px solid var(--line-dark)}
  .why-col{padding:34px 22px 0;border-right:1px solid var(--line-dark)}
  .why-col:last-child{border-right:none}
  .why-col .n{font-family:var(--serif);font-size:42px;font-weight:700;color:var(--mint);line-height:1}
  .why-col .n sub{font-size:.5em;color:#8a93a3;font-family:var(--serif)}
  .why-col h5{margin:18px 0 12px;font-size:15px;font-weight:700;color:#fff}
  .why-col p{font-size:12.5px;color:#9aa3b2;line-height:1.65}
  /* ---------- references ---------- */
  .ref-section h2{margin-top:22px}
  .ref-callout{background:
    radial-gradient(100% 140% at 0% 0%, rgba(92,232,208,.28),transparent 55%),var(--ink);
    color:var(--cream);border-radius:14px;padding:38px 40px;margin-top:46px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
  .ref-callout .label{color:var(--mint)}.ref-callout .label::before{background:var(--mint)}
  .ref-callout h4{font-family:var(--serif);font-style:italic;font-size:24px;margin:14px 0 12px;font-weight:600}
  .ref-callout p{color:#b9c0cd;font-size:14px;line-height:1.7;max-width:54ch}
  .ref-table{margin-top:42px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
  .ref-tr{display:grid;grid-template-columns:30px 1.3fr 1.6fr 1.4fr 1fr 1.4fr;gap:18px;padding:20px 24px;border-bottom:1px solid var(--line);font-size:13px;align-items:start}
  .ref-tr:last-child{border-bottom:none}
  .ref-tr .ix{font-family:var(--mono);color:var(--slate)}
  .ref-tr .proj{font-weight:700}
  .ref-tr .who b{display:block;font-weight:600}
  .ref-tr .who em{display:block;color:var(--slate);font-size:11px;font-style:italic;margin-top:3px;line-height:1.4}
  .ref-tr .mono{font-family:var(--mono);font-size:11.5px;color:var(--slate)}
  .ref-tr .live{color:var(--rust);font-weight:500;font-size:12px}
  .ref-tr .live.nda{color:var(--slate);font-style:italic}
  .ref-note{font-style:italic;color:var(--slate);font-size:12.5px;margin-top:18px;line-height:1.6}
  /* ---------- final cta (dark) ---------- */
  .cta{background:
    radial-gradient(90% 120% at 0% 100%, rgba(92,232,208,.26),transparent 55%),var(--ink);
    color:var(--cream);padding:110px 0}
  .cta-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
  .cta .label{color:var(--mint)}.cta .label::before{background:var(--mint)}
  .cta h2{color:#fff;margin-top:24px;font-size:clamp(36px,5vw,58px)}
  .cta h2 .serif-em{color:var(--mint)}
  .cta p{color:#aab2c1;margin-top:24px;line-height:1.7;max-width:46ch}
  .cta .btn{margin-top:34px}
  .contact-card{border:1px solid var(--line-dark);border-radius:14px;overflow:hidden}
  .cc-row{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line-dark);align-items:center}
  .cc-row:last-child{border-bottom:none}
  .cc-row .k{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--slate-light)}
  .cc-row .v{font-weight:600;font-size:14px;color:#fff}
  .cc-row .v.addr{font-family:var(--serif);font-style:italic;font-weight:500;color:#cfd6e0;font-size:13px;line-height:1.5}
  /* ---------- footer ---------- */
  footer{background:var(--ink);color:var(--cream);padding:64px 0 30px;border-top:1px solid var(--line-dark)}
  .foot-top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
  .foot-brand .logo{color:#fff}
  .foot-brand .ft{font-family:var(--serif);font-style:italic;font-size:15px;color:#9aa3b2;margin-top:16px}
  .foot-brand .ft b{color:var(--mint);font-weight:600}
  .foot-links{display:flex;flex-direction:column;gap:9px;text-align:right;font-family:var(--mono);font-size:12px;color:var(--slate-light)}
  .foot-links a{color:var(--slate-light);text-decoration:none}
  .foot-links a:hover{color:var(--mint)}
  .foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-top:50px;padding-top:24px;border-top:1px solid var(--line-dark);font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--slate)}
  .foot-bottom b{color:#c9cedb}
  .wa{position:fixed;right:24px;bottom:24px;width:54px;height:54px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 12px 30px rgba(37,211,102,.4);z-index:80;text-decoration:none;font-size:26px;transition:transform .25s}
  .wa:hover{transform:scale(1.08)}
  /* =====================================================
     RESPONSIVE — 3 BREAKPOINTS
     1) Tablet/laptop  ≤ 1024px
     2) Tablet/mobile  ≤ 768px
     3) Phone          ≤ 480px
  ===================================================== */
  /* ---------- 1) ≤ 1024px (tablet / small laptop) ---------- */
  @media (max-width:1024px){
    :root{--maxw:920px}
    .pad{padding:72px 0}
    .pad-lg{padding:90px 0}
    .pf-grid{grid-template-columns:repeat(3,1fr)}
    .why-grid{grid-template-columns:repeat(3,1fr)}
    .why-col:nth-child(3){border-right:none}
    .why-col:nth-child(n+1):nth-child(-n+3){border-bottom:1px solid var(--line-dark)}
    .gal-grid{grid-template-columns:repeat(2,1fr)}
    .ghost{font-size:clamp(70px,12vw,130px);top:54px}
    .cs-text{gap:34px}
    .browser-body{height:300px}
  }
  /* ---------- 2) ≤ 768px (tablet portrait / large phone) ---------- */
  @media (max-width:768px){
    :root{--maxw:100%}
    .wrap{padding:0 22px}
    .pad{padding:60px 0}
    .pad-lg{padding:70px 0}
    /* nav: collapse to logo + CTA */
    .nav{height:64px}
    .brand .tag,.nav-pill{display:none}
    /* hero */
    .hero-inner{padding:54px 0 50px}
    .stats{grid-template-columns:repeat(2,1fr)}
    .stat:nth-child(2){border-right:none}
    .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-dark)}
    /* how-we-tell */
    .cso{grid-template-columns:1fr}
    .cso .col{border-right:none;border-bottom:1px solid var(--line);padding:28px 4px}
    .cso .col:last-child{border-bottom:none}
    .inline-stats{flex-wrap:wrap}
    .ist{flex:1 1 40%;border-right:none;justify-content:center;padding:16px}
    /* portfolio */
    .pf-grid{grid-template-columns:repeat(2,1fr)}
    /* case study */
    .cs{padding:64px 0 56px}
    .cs-tag{font-size:19px}
    .cs-text{grid-template-columns:1fr;gap:30px}
    .out-grid{grid-template-columns:1fr 1fr;gap:26px 0}
    .ref-row{grid-template-columns:1fr}
    .quote{border-right:none;border-bottom:1px solid var(--line);padding:34px 28px}
    .refcard{padding:30px 28px}
    .browser-body{grid-template-columns:130px 1fr;height:260px}
    .phone{width:132px;height:272px}
    .gal-grid{grid-template-columns:repeat(2,1fr)}
    /* why */
    .why{padding:72px 0}
    .why-grid{grid-template-columns:repeat(2,1fr)}
    .why-col{border-bottom:1px solid var(--line-dark);padding:28px 18px}
    .why-col:nth-child(2){border-right:none}
    /* references */
    .ref-callout{flex-direction:column;align-items:flex-start;padding:30px 26px}
    .ref-tr{grid-template-columns:22px 1fr 1.2fr;gap:12px}
    .ref-tr .mono,.ref-tr .live{display:none}
    /* cta + footer */
    .cta{padding:72px 0}
    .cta-grid{grid-template-columns:1fr;gap:38px}
    .foot-top{flex-direction:column}
    .foot-links{text-align:left}
  }
  /* ---------- 3) ≤ 480px (phone) ---------- */
  @media (max-width:480px){
    .wrap{padding:0 22px}
    .pad{padding:48px 0}
    .pad-lg{padding:56px 0}
    .nav{height:58px}
    .logo{font-size:18px}
    .hero-inner{padding:40px 0 40px}
    .pill{font-size:9px;padding:7px 12px}
    .hero p.lede{font-size:15px}
    .stats{grid-template-columns:1fr}
    .stat{border-right:none;border-bottom:1px solid var(--line-dark);padding:20px 4px}
    .stat:last-child{border-bottom:none}
    .stat .n{font-size:40px}
    .inline-stats{flex-direction:column;padding:10px}
    .ist{flex:1 1 100%;border-right:none;border-bottom:1px solid var(--line);width:100%}
    .ist:last-child{border-bottom:none}
    .pf-grid{grid-template-columns:1fr}
    .pf-card{min-height:auto}
    .ghost{font-size:64px;top:44px;right:18px}
    .cs{padding:52px 0 48px}
    .cs-tag{font-size:17px}
    .out-grid{grid-template-columns:1fr;gap:22px 0}
    .quote blockquote{font-size:16px}
    .browser-body{grid-template-columns:1fr;height:auto}
    .bb-side{display:none}
    .browser-body .bb-main{min-height:200px}
    .url{font-size:9px}
    .thumbs i{width:42px;height:26px}
    .phones{gap:12px}
    .phone{width:46%;max-width:150px;height:auto;aspect-ratio:150/308}
    .gal-grid{grid-template-columns:1fr}
    .gal-head{align-items:flex-start}
    .why{padding:56px 0}
    .why-grid{grid-template-columns:1fr}
    .why-col{border-right:none}
    .ref-table{border-radius:10px}
    .ref-tr{grid-template-columns:20px 1fr;gap:8px;padding:16px}
    .ref-tr .who{grid-column:1 / -1}
    .contact-card .cc-row{grid-template-columns:90px 1fr;gap:10px;padding:14px 18px}
    .nextcase{gap:14px}
    .nextcase .nx{font-size:10px}
    .wa{right:16px;bottom:16px;width:48px;height:48px;font-size:22px}
  }
  /* reveal animation */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
  @media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

  /* ===== mobile hero polish (2x2 stats, tighter spacing) ===== */
  @media (max-width:560px){
    .hero-inner{padding:38px 0 34px}
    h1.hero-h{font-size:clamp(32px,8.5vw,44px);max-width:none}
    .hero p.lede{font-size:14px;margin-top:18px}
    .stats{grid-template-columns:1fr 1fr;margin-top:30px}
    .stat{padding:18px 14px;border-right:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
    .stat:nth-child(2n){border-right:none}
    .stat:nth-child(n+3){border-bottom:none}
    .stat .n{font-size:32px}
    .stat .k{margin-top:10px}
    .scroll-ind{margin-top:22px}
  }
  /* ===== adaptive sticky header (dark over hero -> solid on scroll) ===== */
header{transition:background .35s ease,border-color .35s ease,box-shadow .35s ease}
.navlinks a,.nav-pill,.brand .tag .t1,.brand .tag .t2,.logo,.btn-dark{
  transition:color .35s ease,background .35s ease,border-color .35s ease}

/* state A — over the dark hero (top of page) */
header.over-dark{background:rgba(14,21,53,.42);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);border-bottom-color:rgba(255,255,255,.10)}
header.over-dark .logo{color:#fff}
header.over-dark .brand .tag{border-left-color:rgba(255,255,255,.18)}
header.over-dark .brand .tag .t1{color:#fff}
header.over-dark .brand .tag .t2{color:rgba(255,255,255,.62)}
header.over-dark .navlinks a{color:#fff}
header.over-dark .nav-pill{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16)}
header.over-dark .btn-dark{background:var(--rust);color:#fff}

/* state B — scrolled onto light content (solid bar) */
header.over-light{background:rgba(247,245,240,.92);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
  /* ===== scroll fade-up + hover lift for explainer + portfolio ===== */
.anim-up{opacity:0;transform:translateY(26px);
  transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.anim-up.in{opacity:1;transform:none}

.cso .col{transition:transform .25s ease}
.cso .col:hover{transform:translateY(-5px)}

.pf-card{transition:transform .2s ease,background .2s ease,box-shadow .2s ease}
.pf-card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(14,21,53,.10)}

@media(prefers-reduced-motion:reduce){.anim-up{opacity:1;transform:none;transition:none}}