/* ============================================================
   TOTEM — a creative studio that builds one iconic object at a time
   Style register: "Virgil Abloh" — one unforgettable element (the
   chrome object), repeated tastefully. Contrast, not bigness.
   High-contrast industrial. Demo build for the Stack Studios portfolio.
   ============================================================ */

:root {
  --paper:   #EEEBE4;   /* stark off-white */
  --paper-2: #E3E0D7;
  --ink:     #0A0A08;   /* near-black */
  --ink-soft:#2E2D28;
  --dim:     #706F67;
  --line:    rgba(10,10,8,0.16);
  --line-2:  rgba(10,10,8,0.07);
  --orange:  #FF4A17;   /* industrial accent — rationed, high-contrast */
  --sig:      var(--orange);                                 /* Stack Studios signature — the demo's own accent */
  --sig-line: color-mix(in srgb, var(--sig) 55%, transparent);

  --display: "Bricolage Grotesque", system-ui, -apple-system, sans-serif;
  --mono:    "DM Mono", ui-monospace, "SF Mono", monospace;

  --maxw: 1340px;
  --gutter: clamp(20px, 4vw, 52px);
  --section: clamp(80px, 11vw, 160px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,*::before,*::after { box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body {
  margin:0; background:var(--paper); color:var(--ink);
  font-family:var(--display); font-size:17px; line-height:1.5; font-weight:400;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
img { display:block; max-width:100%; }
a { color:inherit; text-decoration:none; }
button { font:inherit; cursor:pointer; }
h1,h2,h3,h4 { margin:0; font-family:var(--display); font-weight:700; line-height:0.94; letter-spacing:-0.03em; }
p { margin:0; }
::selection { background:var(--orange); color:#fff; }

/* layout */
.wrap { max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.section { padding-block:var(--section); }
.section-sm { padding-block: clamp(52px,7vw,96px); }
.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 { position:absolute;left:-999px;top:8px;z-index:200;background:var(--ink);color:var(--paper);padding:10px 16px; }
.skip-link:focus { left:8px; }

/* technical mono annotations — the Virgil "labeling" device */
.tech { font-family:var(--mono); font-size:0.72rem; letter-spacing:0.02em; text-transform:uppercase; color:var(--dim); }
.tech-ink { color:var(--ink); }
.tech-o { color:var(--orange); }
.q::before { content:"\201C"; } .q::after { content:"\201D"; }   /* "quote" device */

/* hazard strip — thin diagonal caution accent */
.hazard { height:8px; background:repeating-linear-gradient(-45deg, var(--orange) 0 14px, var(--ink) 14px 28px); }

/* type scale */
.d-huge { font-size:clamp(3.4rem, 13vw, 15rem); line-height:0.86; letter-spacing:-0.045em; font-weight:700; }
.d-xl { font-size:clamp(2.6rem, 7.5vw, 7rem); line-height:0.92; letter-spacing:-0.04em; }
.d-l  { font-size:clamp(2rem, 4.6vw, 4rem); line-height:0.98; letter-spacing:-0.03em; }
.d-m  { font-size:clamp(1.4rem, 2.6vw, 2.2rem); line-height:1.02; }
.lede { font-family:var(--display); font-size:clamp(1.05rem,1.6vw,1.35rem); line-height:1.45; color:var(--ink-soft); max-width:48ch; font-weight:500; }
.dim { color:var(--dim); }
.measure { max-width:56ch; }

:focus-visible { outline:3px solid var(--orange); outline-offset:2px; }

/* nav */
.nav { position:sticky; top:0; z-index:100; background:color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); border-bottom:1px solid var(--ink); }
.nav-in { display:flex; align-items:center; justify-content:space-between; height:66px; }
.brand { font-family:var(--display); font-weight:800; font-size:1.4rem; letter-spacing:-0.02em; display:inline-flex; align-items:center; gap:9px; }
.nav-links { display:flex; align-items:center; gap:clamp(16px,2.4vw,34px); list-style:none; margin:0; padding:0; }
.nav-links a { font-family:var(--mono); font-size:0.76rem; letter-spacing:0.04em; text-transform:uppercase; color:var(--ink); opacity:.7; transition:opacity .18s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { opacity:1; color:var(--orange); }
.nav-actions { display:flex; align-items:center; gap:14px; }
.nav-toggle { display:none; background:none; border:0; padding:8px; }
.nav-toggle span { display:block; width:24px; height:2px; background:var(--ink); margin:5px 0; }

/* buttons — hard-edged industrial */
.btn { display:inline-flex; align-items:center; gap:10px; font-family:var(--mono); font-size:0.78rem; font-weight:500; letter-spacing:0.04em; text-transform:uppercase; padding:14px 24px; border:2px solid var(--ink); color:var(--ink); background:transparent; transition:background .18s, color .18s, transform .1s; }
.btn:hover { background:var(--ink); color:var(--paper); }
.btn-solid { background:var(--ink); color:var(--paper); }
.btn-solid:hover { background:var(--orange); border-color:var(--orange); color:#fff; }
.btn-o { background:var(--orange); border-color:var(--orange); color:#fff; }
.btn-o:hover { background:var(--ink); border-color:var(--ink); }
.btn:active, .btn-o:active, .nav-toggle:active, .link-u:active { transform:scale(.97); }
.link-u { font-family:var(--mono); font-size:0.78rem; letter-spacing:0.04em; text-transform:uppercase; display:inline-flex; align-items:center; gap:10px; border-bottom:2px solid var(--ink); padding-bottom:4px; transition:gap .2s, color .2s, border-color .2s; }
.link-u:hover { gap:15px; color:var(--orange); border-color:var(--orange); }

/* hero */
.hero { border-bottom:1px solid var(--ink); }
.hero-grid { display:grid; grid-template-columns:1.1fr 0.9fr; align-items:stretch; }
.hero-copy { padding:clamp(40px,6vw,80px) var(--gutter) clamp(40px,6vw,72px) var(--gutter); display:flex; flex-direction:column; justify-content:space-between; }
.hero-copy .top { }
.hero-copy h1 { margin-top:24px; }
.hero-obj { border-left:1px solid var(--ink); background:var(--paper-2); position:relative; overflow:hidden; min-height:clamp(360px,60vh,720px); }
.hero-obj img { width:100%; height:100%; object-fit:cover; }
.hero-obj .ann { position:absolute; font-family:var(--mono); font-size:0.68rem; text-transform:uppercase; color:var(--ink); background:var(--paper); padding:4px 8px; border:1px solid var(--ink); }

/* marquee */
.marquee { border-top:1px solid var(--ink); border-bottom:1px solid var(--ink); overflow:hidden; background:var(--ink); color:var(--paper); }
.marquee-track { display:inline-flex; white-space:nowrap; gap:0; will-change:transform; }
.marquee-track span { font-family:var(--display); font-weight:700; font-size:clamp(1.4rem,3vw,2.4rem); letter-spacing:-0.02em; padding:16px 0; }
.marquee-track .star { color:var(--orange); padding-inline:clamp(20px,3vw,44px); }
@media (prefers-reduced-motion: no-preference) {
  .marquee-track { animation: scroll-x 26s linear infinite; }
  @keyframes scroll-x { from { transform:translateX(0); } to { transform:translateX(-50%); } }
}

/* index / labels row */
.rowline { display:flex; justify-content:space-between; align-items:center; gap:16px; padding-block:20px; border-bottom:1px solid var(--ink); flex-wrap:wrap; }

/* work grid — bold objects */
.work { display:grid; grid-template-columns:repeat(2,1fr); gap:0; border-left:1px solid var(--ink); border-top:1px solid var(--ink); }
.work-item { border-right:1px solid var(--ink); border-bottom:1px solid var(--ink); background:var(--paper-2); position:relative; overflow:hidden; }
.work-item .media { aspect-ratio:1/1; overflow:hidden; }
.work-item .media img { width:100%; height:100%; object-fit:cover; transition:transform 1s var(--ease); }
.work-item:hover .media img { transform:scale(1.05); }
.work-item .info { display:flex; justify-content:space-between; align-items:baseline; padding:18px 22px; border-top:1px solid var(--ink); background:var(--paper); }
.work-item .info .name { font-family:var(--display); font-weight:700; font-size:1.35rem; }

/* split */
.split { display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,4vw,72px); align-items:center; }
.split.rev .split-media { order:-1; }
.split-media { background:var(--paper-2); border:1px solid var(--ink); overflow:hidden; }
.split-media img { width:100%; height:100%; object-fit:cover; }

/* big statement */
.statement { max-width:22ch; }

/* steps / process */
.steps { border-top:1px solid var(--ink); }
.step { display:grid; grid-template-columns:auto 1fr 2fr; gap:clamp(16px,3vw,48px); padding:32px 0; border-bottom:1px solid var(--ink); align-items:start; }
.step .no { font-family:var(--display); font-weight:800; font-size:clamp(2rem,4vw,3.4rem); line-height:1; }
.step h3 { font-size:1.4rem; }
.step p { color:var(--dim); font-size:0.96rem; max-width:44ch; }

/* form */
.field { display:grid; gap:8px; margin-bottom:20px; }
.field label { font-family:var(--mono); font-size:0.7rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--dim); }
.field input, .field textarea, .field select { font:inherit; padding:13px 14px; border:2px solid var(--ink); background:var(--paper); color:var(--ink); }
.field input:focus, .field textarea:focus, .field select:focus { outline:0; border-color:var(--orange); }

/* footer */
.footer { border-top:1px solid var(--ink); }
.footer-big { font-family:var(--display); font-weight:800; font-size:clamp(3.4rem,17vw,15rem); line-height:0.8; letter-spacing:-0.05em; padding-block:clamp(30px,5vw,60px); border-bottom:1px solid var(--ink); }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:30px; padding-block:clamp(40px,5vw,64px); }
.footer h4 { font-family:var(--mono); font-size:0.7rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--dim); font-weight:400; margin-bottom:14px; }
.footer nav a { display:block; padding:5px 0; color:var(--ink-soft); font-size:0.92rem; }
.footer nav a:hover { color:var(--orange); }
.footer-bot { display:flex; justify-content:space-between; align-items:center; padding-block:22px 34px; border-top:1px solid var(--line); flex-wrap:wrap; gap:10px; font-family:var(--mono); font-size:0.72rem; text-transform:uppercase; color:var(--dim); }
.demo-flag { border:1px solid var(--ink); padding:6px 12px; }

/* page hero */
.page-hero { padding-top:clamp(48px,6vw,80px); }
.crumbs { font-family:var(--mono); font-size:0.72rem; letter-spacing:0.04em; text-transform:uppercase; color:var(--dim); margin-bottom:22px; }
.crumbs a:hover { color:var(--orange); }
.rule { border:0; border-top:1px solid var(--ink); margin:0; }

/* ============================================================
   STACK STUDIOS SIGNATURE — recurring craft, in this demo's own
   accent (--sig). Seam hairline · one orchestrated first-load
   moment · footer mark · press feedback. Style-agnostic by design.
   ============================================================ */
.sig-kicker { display:inline-flex; align-items:center; gap:14px; }
.sig-seam   { display:inline-block; width:34px; height:1px; background:var(--sig); transform-origin:left center; flex:none; }
.sig-mask   { display:block; overflow:hidden; padding-block:.12em; margin-block:-.12em; }
.sig-rule   { display:flex; align-items:center; gap:16px; }
.sig-rule::after { content:""; flex:1; height:1px; background:var(--sig-line); }
.sig-credit  { display:inline-flex; align-items:center; gap:9px; }
.sig-emblem  { width:15px; height:15px; color:var(--sig); flex:none; }

@media (prefers-reduced-motion: no-preference){
  /* First-load choreography — pure CSS, plays on load once the inline <head>
     bootstrap adds `.js` (synchronous, before first paint). No dependency on any
     script finishing; with JS off or reduced motion the rules simply don't apply
     and all content is fully visible. Seam draws → headline rises from its mask
     → hero items stagger up. */
  .js .sig-seam      { animation:sig-draw .70s var(--ease) .12s both; }
  .js .sig-mask > h1 { animation:sig-rise .85s var(--ease) .18s both; }
  .js .sig-hero      { animation:sig-up   .60s var(--ease) both; }
  .js .sig-d1 { animation-delay:.08s; }
  .js .sig-d2 { animation-delay:.30s; }
  .js .sig-d3 { animation-delay:.40s; }
  @keyframes sig-draw { from{transform:scaleX(0);}        to{transform:scaleX(1);} }
  @keyframes sig-rise { from{transform:translateY(118%);} to{transform:translateY(0);} }
  @keyframes sig-up   { from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:none;} }
}

/* reveal */
@media (prefers-reduced-motion: no-preference) {
  .js .fade { opacity:0; transform:translateY(20px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
  .js .fade.in { opacity:1; transform:none; }
}

/* responsive */
@media (max-width: 900px) {
  .hero-grid, .work, .split, .footer-grid { grid-template-columns:1fr; }
  .hero-obj { border-left:0; border-top:1px solid var(--ink); }
  .hero-copy { padding-right:0; }
  .work { border-left:0; }
  .work-item { border-right:0; }
  .split.rev .split-media { order:0; }
  .step { grid-template-columns:auto 1fr; }
  .step p { grid-column:1 / -1; }
  .nav-links, .nav-actions .btn { display:none; }
  .nav-toggle { display:block; }
  .nav-links.open { display:flex; position:fixed; inset:66px 0 auto 0; flex-direction:column; align-items:flex-start; gap:0; background:var(--paper); border-bottom:1px solid var(--ink); padding:8px var(--gutter) 20px; z-index:110; }
  .nav-links.open li { width:100%; border-top:1px solid var(--line-2); }
  .nav-links.open a { display:block; padding:15px 0; font-size:0.9rem; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }