/* ============================================================
   ObjSlice — Blueprint clair
   blue = structure / mesh / plan · orange = la coupe / l'action
   ============================================================ */

:root {
  /* paper + ink */
  --paper:      #eef1f5;
  --paper-2:    #e6eaf0;
  --card:       #ffffff;
  --ink:        #0f1722;
  --ink-2:      #3c4a5e;
  --ink-3:      #6c7a8e;

  /* hairlines */
  --line:        #d3dbe7;
  --line-2:      #c2ccdb;
  --grid:        rgba(31, 80, 214, 0.07);
  --grid-strong: rgba(31, 80, 214, 0.13);

  /* blue = plan / structure */
  --blue:      #1f50d6;
  --blue-ink:  #163a9e;
  --blue-soft: #e3e9fb;

  /* orange = la coupe / action */
  --cut:      #ff5a2c;
  --cut-ink:  #d8410f;
  --cut-soft: #ffe6dd;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --maxw: 1180px;
  --radius: 4px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-display);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* blueprint grid wash on the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, #000, #000);
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ---------- shared layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

section { position: relative; z-index: 1; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--blue);
  display: inline-block;
}
.eyebrow.is-cut { color: var(--cut-ink); }
.eyebrow.is-cut::before { background: var(--cut); }

.section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

h1, h2, h3 { font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; }

h2.title {
  font-size: clamp(30px, 4.2vw, 52px);
  letter-spacing: -0.03em;
  text-wrap: balance;
  margin-top: 18px;
}

.lead {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: pretty;
  line-height: 1.55;
}

/* ---------- buttons ---------- */
.btn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
  white-space: nowrap;
}
.btn .arr { transition: transform .2s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

.btn-primary {
  background: var(--cut);
  color: #fff;
  box-shadow: 0 1px 0 var(--cut-ink), 0 8px 20px -10px rgba(255,90,44,.6);
}
.btn-primary:hover { background: var(--cut-ink); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn-ghost:hover { border-color: var(--ink); background: rgba(15,23,34,.03); }

.btn-blue {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 1px 0 var(--blue-ink), 0 8px 20px -10px rgba(31,80,214,.55);
}
.btn-blue:hover { background: var(--blue-ink); transform: translateY(-1px); }

/* ---------- nav ---------- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(238,241,245,.82);
  backdrop-filter: blur(12px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
header.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }

.logo { display: flex; align-items: center; gap: 11px; font-weight: 600; font-size: 19px; letter-spacing: -0.02em; }
.logo .mark {
  width: 26px; height: 26px; position: relative; flex: none;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
}
.logo .mark::before, .logo .mark::after {
  content: ""; position: absolute; left: -4px; right: -4px; height: 1.5px; background: var(--cut);
}
.logo .mark::before { top: 11px; transform: rotate(-13deg); }
.logo .mark::after  { display: none; }
.logo b { font-weight: 600; }
.logo .obj { color: var(--ink); }
.logo .slice { color: var(--blue); }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 14px; color: var(--ink-2); transition: color .15s;
  font-family: var(--font-mono); letter-spacing: .01em;
}
.nav-links a:hover { color: var(--ink); }

.nav-right { display: flex; align-items: center; gap: 16px; }

.lang-toggle {
  display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--radius);
  overflow: hidden; font-family: var(--font-mono); font-size: 12px;
}
.lang-toggle button {
  border: none; background: transparent; cursor: pointer; padding: 7px 11px;
  color: var(--ink-3); font-family: inherit; font-size: inherit; letter-spacing: .05em;
  transition: background .15s, color .15s;
}
.lang-toggle button.active { background: var(--ink); color: #fff; }

.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero { padding: 64px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 0.92fr 1.28fr; gap: 48px; align-items: center; }

.hero h1 {
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
  margin: 20px 0 22px;
}
.hero h1 .hl { position: relative; color: var(--ink); white-space: nowrap; }
.hero h1 .hl::after {
  content: ""; position: absolute; left: -3px; right: -3px; bottom: 3px; height: 14px; z-index: -1;
  background: rgba(255, 90, 44, 0.22);
}
.hero .lead { font-size: clamp(16px, 1.55vw, 19px); }

.hero-cta { display: flex; gap: 14px; margin: 30px 0 26px; flex-wrap: wrap; }

.format-badges { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.format-badges .fb-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-right: 4px; }
.badge {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  padding: 5px 10px; border: 1px solid var(--line-2); border-radius: var(--radius);
  background: var(--card); color: var(--ink-2);
  transition: border-color .15s, color .15s, transform .15s;
}
.badge:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-1px); }

/* ---- hero blueprint diagram (placeholder/drop zone) ---- */
.hero-visual {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  aspect-ratio: 4 / 3.3;
  overflow: hidden;
  box-shadow: 0 30px 60px -40px rgba(15,23,34,.4);
}
.hv-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}
.hv-corner { position: absolute; width: 16px; height: 16px; border: 1.5px solid var(--blue); opacity: .8; }
.hv-corner.tl { top: 12px; left: 12px; border-right: 0; border-bottom: 0; }
.hv-corner.tr { top: 12px; right: 12px; border-left: 0; border-bottom: 0; }
.hv-corner.bl { bottom: 12px; left: 12px; border-right: 0; border-top: 0; }
.hv-corner.br { bottom: 12px; right: 12px; border-left: 0; border-top: 0; }

.hv-stage { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }

/* "model too big for plate" schematic */
.plate {
  position: absolute; bottom: 20%; left: 50%; transform: translateX(-50%);
  width: 46%; height: 10px;
  background: repeating-linear-gradient(45deg, var(--line-2) 0 5px, transparent 5px 10px);
  border: 1px solid var(--line-2); border-radius: 2px;
}
.plate-label {
  position: absolute; bottom: calc(20% - 26px); left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: .08em; white-space: nowrap;
}
.model-box {
  position: relative;
  width: 40%; aspect-ratio: 3/4;
  border: 1.5px solid var(--blue);
  background: linear-gradient(135deg, rgba(31,80,214,.05), rgba(31,80,214,.1));
  margin-bottom: 6%;
}
/* wireframe diagonals inside the model box */
.model-box::before, .model-box::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(to top right, transparent 49.4%, rgba(31,80,214,.4) 49.5%, rgba(31,80,214,.4) 50.5%, transparent 50.6%),
    linear-gradient(to top left, transparent 49.4%, rgba(31,80,214,.4) 49.5%, rgba(31,80,214,.4) 50.5%, transparent 50.6%);
}
.model-box::after {
  background:
    linear-gradient(90deg, transparent 49.4%, rgba(31,80,214,.25) 49.5%, rgba(31,80,214,.25) 50.5%, transparent 50.6%),
    linear-gradient(0deg, transparent 32%, rgba(31,80,214,.25) 32.3%, rgba(31,80,214,.25) 33%, transparent 33.3%, transparent 65%, rgba(31,80,214,.25) 65.3%, rgba(31,80,214,.25) 66%, transparent 66.3%);
}
/* orange cut plane sweeping across */
.cut-plane {
  position: absolute; top: 44%; left: -6%; right: -6%; height: 0;
  border-top: 2px dashed var(--cut);
  z-index: 3;
}
.cut-plane .tag {
  position: absolute; right: 0; top: -11px;
  font-family: var(--font-mono); font-size: 11px; color: #fff; background: var(--cut);
  padding: 2px 7px; border-radius: 2px; letter-spacing: .05em;
}
.cut-plane .node { position: absolute; width: 7px; height: 7px; background: var(--cut); border-radius: 50%; top: -3.5px; }
.cut-plane .node.l { left: 8%; }
.cut-plane .node.r { right: 24%; }

/* dimension line (height conflict) */
.dim {
  position: absolute; right: 16%; top: 16%; bottom: 30%;
  width: 0; border-left: 1px solid var(--cut-ink);
  z-index: 3;
}
.dim::before, .dim::after { content: ""; position: absolute; left: -4px; width: 9px; height: 1px; background: var(--cut-ink); }
.dim::before { top: 0; } .dim::after { bottom: 0; }
.dim .val {
  position: absolute; left: 8px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 11px; color: var(--cut-ink); white-space: nowrap; letter-spacing: .05em;
}

.hv-caption {
  position: absolute; left: 14px; bottom: 12px; right: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: .04em;
  z-index: 4;
}
.hv-caption .pill { padding: 3px 8px; border: 1px dashed var(--line-2); border-radius: 2px; background: rgba(255,255,255,.6); }

/* hero blueprint — figurine entière → éclatée + connecteurs */
.hv-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.fig-part { fill: rgba(31,80,214,.08); stroke: var(--blue); stroke-width: 1.6; stroke-linejoin: round; }
.fig-base { fill: rgba(31,80,214,.16); stroke: var(--blue); stroke-width: 1.4; }
.fig-cut { stroke: var(--cut); stroke-width: 1.6; stroke-dasharray: 6 4; }
.fig-conn { fill: var(--cut-soft); stroke: var(--cut); stroke-width: 1.5; }
.fig-arrow { fill: none; stroke: var(--cut); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.fig-label { fill: var(--ink-2); font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.fig-cap2 { fill: var(--cut-ink); font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; }
@keyframes fig-pulse { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }
.fig-go { animation: fig-pulse 2.4s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { .fig-go { animation: none; } }

/* ---------- generic section header ---------- */
.sec-head { display: flex; flex-direction: column; gap: 0; margin-bottom: 44px; max-width: 64ch; }
.sec-head .row { display: flex; align-items: baseline; gap: 16px; justify-content: space-between; }

.section-pad { padding: 84px 0; }
.divider { height: 1px; background: var(--line); border: 0; }

/* ---------- problem band ---------- */
.problem { padding: 76px 0; }
.problem-quote {
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.12; letter-spacing: -0.025em; font-weight: 500;
  max-width: 20ch; text-wrap: balance;
}
.problem-quote .accent { color: var(--cut); }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.pain-list { display: flex; flex-direction: column; gap: 2px; }
.pain {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start;
  padding: 18px 0; border-top: 1px solid var(--line);
}
.pain:last-child { border-bottom: 1px solid var(--line); }
.pain .n { font-family: var(--font-mono); font-size: 12px; color: var(--cut-ink); padding-top: 3px; }
.pain h4 { font-size: 17px; font-weight: 600; margin-bottom: 3px; }
.pain p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- methods (4 cards) ---------- */
.methods-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.method {
  background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius);
  padding: 0; overflow: hidden; display: flex; flex-direction: column;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.method:hover { transform: translateY(-4px); box-shadow: 0 24px 48px -32px rgba(15,23,34,.4); border-color: var(--blue); }
.method .viz {
  position: relative; aspect-ratio: 5/3.2; background: var(--paper-2);
  border-bottom: 1px solid var(--line); overflow: hidden;
}
.method .viz .vgrid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 18px 18px;
}
.method .body { padding: 22px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.method .mnum { font-family: var(--font-mono); font-size: 12px; color: var(--blue); letter-spacing: .1em; }
.method h3 { font-size: 21px; }
.method p { font-size: 14.5px; color: var(--ink-2); line-height: 1.5; }

/* method viz pieces */
.m-shape { position: absolute; inset: 18%; border: 1.5px solid var(--blue); background: rgba(31,80,214,.06); }
/* volume: a selection box */
.m-vol-zone {
  position: absolute; top: 24%; left: 30%; width: 44%; height: 52%;
  border: 1.5px dashed var(--cut); background: rgba(255,90,44,.08); z-index: 2;
}
.m-vol-zone .h { position: absolute; width: 7px; height: 7px; background: var(--cut); border: 1px solid #fff; }
.m-vol-zone .h.a { top: -4px; left: -4px; } .m-vol-zone .h.b { top: -4px; right: -4px; }
.m-vol-zone .h.c { bottom: -4px; left: -4px; } .m-vol-zone .h.d { bottom: -4px; right: -4px; }
/* plane: diagonal cut line */
.m-plane-line { position: absolute; top: -10%; bottom: -10%; left: 50%; width: 0; border-left: 2px dashed var(--cut); transform: rotate(22deg); transform-origin: center; z-index: 2; }
.m-plane-line .node { position: absolute; left: -4px; width: 8px; height: 8px; background: var(--cut); border-radius: 50%; }
.m-plane-line .node.t { top: 26%; } .m-plane-line .node.b { bottom: 26%; }
/* shape: scattered auto-selected cells */
.m-shape-cells { position: absolute; inset: 18%; }
.m-cell { position: absolute; width: 16px; height: 16px; border: 1.5px solid var(--cut); background: rgba(255,90,44,.1); }

/* ---------- feature rows (connectors, watertight, decimation) ---------- */
.feature { padding: 76px 0; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature.flip .feature-grid > .feature-text { order: 2; }
.feature-text { display: flex; flex-direction: column; gap: 16px; }
.feature-text h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -0.03em; }
.feature-text ul { list-style: none; display: flex; flex-direction: column; gap: 11px; margin-top: 6px; }
.feature-text li { display: grid; grid-template-columns: auto 1fr; gap: 12px; font-size: 15px; color: var(--ink-2); align-items: start; }
.feature-text li .tick { color: var(--blue); font-family: var(--font-mono); font-size: 13px; padding-top: 2px; }

.feature-viz {
  position: relative; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius);
  aspect-ratio: 4/3; overflow: hidden; box-shadow: 0 24px 50px -38px rgba(15,23,34,.4);
}
.feature-viz .fgrid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 26px 26px;
}
.fviz-tag {
  position: absolute; top: 12px; left: 12px; z-index: 2; font-family: var(--font-mono); font-size: 11px;
  color: var(--blue); letter-spacing: .08em; background: var(--blue-soft); padding: 3px 8px; border-radius: 2px;
}

/* video fill for method/feature visuals (replaces the CSS schematics) */
.viz-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: var(--paper-2);
}

/* connectors viz: SVG blueprint — tenon (mâle) s'insérant dans mortaise (femelle) */
.conn-svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.cn-block { fill: rgba(31,80,214,.06); stroke: var(--blue); stroke-width: 1.5; }
.cn-wire { fill: none; stroke: var(--blue); stroke-width: 1; opacity: .2; }
.cn-tenon { fill: var(--cut-soft); stroke: var(--cut); stroke-width: 1.5; stroke-linejoin: round; }
.cn-mortise { fill: var(--paper); stroke: var(--cut); stroke-width: 1.5; stroke-dasharray: 5 4; }
.cn-cap { fill: #ffccb8; stroke: var(--cut); stroke-width: 1.5; }
.cn-face-top { fill: #fff2ec; stroke: var(--cut); stroke-width: 1.5; stroke-linejoin: round; }
.cn-face-side { fill: #ffccb8; stroke: var(--cut); stroke-width: 1.5; stroke-linejoin: round; }
.cn-seam { stroke: var(--cut); stroke-width: 1.5; stroke-dasharray: 6 5; opacity: .5; }
.cn-arrow { fill: none; stroke: var(--cut-ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.cn-label { fill: var(--ink-3); font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; }

@keyframes cn-nudge { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(8px); } }
@keyframes cn-pulse { 0%, 100% { opacity: .4; } 50% { opacity: 1; } }
.cn-male { animation: cn-nudge 2.6s var(--ease) infinite; }
.cn-arrows { animation: cn-pulse 2.6s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) {
  .cn-male, .cn-arrows { animation: none; }
}

/* watertight viz */
.wt-stage { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.wt-shape {
  width: 42%; aspect-ratio: 1; border: 2px solid var(--blue); border-radius: 8px;
  background: repeating-linear-gradient(0deg, rgba(31,80,214,.05) 0 11px, transparent 11px 12px),
             repeating-linear-gradient(90deg, rgba(31,80,214,.05) 0 11px, transparent 11px 12px);
  position: relative;
}
.wt-seal {
  position: absolute; inset: -8px; border: 1.5px dashed var(--cut); border-radius: 12px;
}
.wt-check {
  position: absolute; right: -14px; bottom: -14px; width: 34px; height: 34px; border-radius: 50%;
  background: var(--cut); color: #fff; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 16px; box-shadow: 0 6px 16px -6px rgba(255,90,44,.7);
}

/* decimation viz */
.dec-stage { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 8%; }
.dec-mesh { width: 32%; aspect-ratio: 1; border: 1.5px solid var(--blue); position: relative; overflow: hidden; }
.dec-mesh.dense { background-image: linear-gradient(rgba(31,80,214,.25) 1px, transparent 1px), linear-gradient(90deg, rgba(31,80,214,.25) 1px, transparent 1px); background-size: 7px 7px; }
.dec-mesh.light { background-image: linear-gradient(rgba(31,80,214,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(31,80,214,.3) 1px, transparent 1px); background-size: 20px 20px; }
.dec-arrow { color: var(--cut); font-family: var(--font-mono); font-size: 13px; letter-spacing: .1em; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.dec-arrow small { color: var(--ink-3); font-size: 10px; }
.dec-label { position: absolute; bottom: -22px; left: 0; right: 0; text-align: center; font-family: var(--font-mono); font-size: 10px; color: var(--ink-3); letter-spacing: .06em; }

/* ---------- formats band ---------- */
.formats { padding: 70px 0; background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.formats::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.formats .wrap { position: relative; }
.formats-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.formats h2 { font-size: clamp(22px, 2.4vw, 30px); color: #fff; max-width: 16ch; }
.formats .sub { font-family: var(--font-mono); font-size: 12px; color: rgba(255,255,255,.55); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 10px; }
.format-chips { display: flex; gap: 14px; flex-wrap: wrap; }
.fchip {
  font-family: var(--font-mono); font-weight: 500; font-size: 18px; letter-spacing: .04em;
  padding: 16px 22px; border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius);
  background: rgba(255,255,255,.04); display: flex; flex-direction: column; gap: 3px; min-width: 92px;
  transition: border-color .18s, background .18s, transform .18s;
}
.fchip:hover { border-color: var(--cut); background: rgba(255,90,44,.1); transform: translateY(-3px); }
.fchip small { font-family: var(--font-mono); font-size: 10px; color: rgba(255,255,255,.45); letter-spacing: .08em; font-weight: 400; }

/* ---------- how it works ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.step { padding: 34px 28px 38px; position: relative; border-right: 1px solid var(--line); }
.step:last-child { border-right: 0; }
.step .snum {
  font-family: var(--font-mono); font-size: 13px; color: #fff; background: var(--blue);
  width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.step:nth-child(2) .snum { background: var(--cut); }
.step h3 { font-size: 22px; margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--ink-2); }
.step .sicon { position: absolute; top: 30px; right: 26px; font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); letter-spacing: .08em; }

/* ---------- use cases ---------- */
.cases-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.case {
  background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 22px;
  display: flex; flex-direction: column; gap: 10px; min-height: 168px; justify-content: space-between;
  transition: border-color .18s, transform .18s;
}
.case:hover { border-color: var(--blue); transform: translateY(-3px); }
.case .ci { width: 30px; height: 30px; border: 1.5px solid var(--blue); border-radius: 3px; position: relative; }
.case .ci::after { content: ""; position: absolute; left: -3px; right: -3px; top: 11px; height: 1.5px; background: var(--cut); transform: rotate(-12deg); }
.case h4 { font-size: 17px; font-weight: 600; }
.case p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- final CTA ---------- */
.final { padding: 96px 0; }
.final-card {
  background: var(--ink); color: #fff; border-radius: 6px; padding: 64px 56px; position: relative; overflow: hidden;
  text-align: center;
}
.final-card::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 30px 30px;
}
.final-card .cut-line { position: absolute; left: 0; right: 0; top: 50%; border-top: 2px dashed var(--cut); opacity: .55; }
.final-card > * { position: relative; }
.final-card h2 { font-size: clamp(30px, 4vw, 50px); letter-spacing: -0.03em; color: #fff; text-wrap: balance; margin: 0 auto 18px; max-width: 18ch; }
.final-card p { color: rgba(255,255,255,.7); font-size: 17px; max-width: 48ch; margin: 0 auto 32px; }
.final-card .hero-cta { justify-content: center; }

/* ---------- footer ---------- */
footer.foot { border-top: 1px solid var(--line); padding: 56px 0 40px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.foot-brand p { font-size: 14px; color: var(--ink-2); max-width: 34ch; margin-top: 14px; }
.foot-col h5 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; }
.foot-col a { display: block; font-size: 14px; color: var(--ink-2); padding: 5px 0; transition: color .15s; }
.foot-col a:hover { color: var(--blue); }
/* ---------- PrintWonders encart ---------- */
.foot-pw { display: flex; align-items: center; gap: 18px; margin-top: 44px; padding: 18px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.foot-pw-badge { flex: none; display: inline-flex; }
.foot-pw-badge img { display: block; height: 44px; width: auto; border-radius: 6px; }
.foot-pw-text p { font-size: 14px; color: var(--ink-2); }
.foot-pw-text p strong { color: var(--ink); font-weight: 600; }
.foot-pw-links { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.foot-pw-links a { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid var(--line-2); border-radius: var(--radius); color: var(--ink-3); transition: color .15s, border-color .15s; }
.foot-pw-links a:hover { color: var(--blue); border-color: var(--blue); }

.foot-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); flex-wrap: wrap; gap: 12px; }
.foot-bottom span { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); letter-spacing: .04em; }

/* ---------- reveal ---------- */
/* hidden state only when JS has marked the doc ready, so content is
   visible by default if JS never runs (fail-safe). */
.js-reveal [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js-reveal [data-reveal].is-in { opacity: 1; transform: none; }
.js-reveal [data-reveal][data-d="1"] { transition-delay: .08s; }
.js-reveal [data-reveal][data-d="2"] { transition-delay: .16s; }
.js-reveal [data-reveal][data-d="3"] { transition-delay: .24s; }
.js-reveal [data-reveal][data-d="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .js-reveal [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .problem-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid { grid-template-columns: 1fr; gap: 36px; }
  .feature.flip .feature-grid > .feature-text { order: 0; }
  .methods-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .nav-links { display: none; }
  .steps-grid { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .formats-inner { flex-direction: column; align-items: flex-start; }
  .foot-pw { flex-direction: column; align-items: flex-start; gap: 14px; }
  .final-card { padding: 44px 24px; }
  .section-pad, .feature, .problem { padding: 56px 0; }
}