:root {
  --ink: #0b0b0e;
  --ink-2: #131318;
  --ink-3: #1c1c24;
  --bone: #ece5d8;
  --bone-dim: #b0a897;
  --amber: #d4a017;
  --stamp: #c0392b;
  --line: #2a2a33;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--bone);
  font-family: "Space Grotesk", system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: "Special Elite", "Courier New", monospace; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 11, 14, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.logo {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.15rem; letter-spacing: 0.06em;
  color: var(--bone); text-decoration: none; text-transform: uppercase;
}
.logo span { color: var(--amber); }
.nav-right { display: flex; align-items: center; gap: 18px; }
.lang { color: var(--bone-dim); text-decoration: none; font-size: 0.85rem; letter-spacing: 0.08em; }
.lang:hover { color: var(--bone); }
.btn {
  display: inline-block;
  background: var(--amber); color: var(--ink);
  font-family: "Archivo Black", sans-serif;
  font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 12px 22px; text-decoration: none;
  border: none; cursor: pointer;
}
.btn:hover { background: #e6b52c; }
.btn-lg { font-size: 0.95rem; padding: 16px 34px; }

/* ---------- hero ---------- */
.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(212, 160, 23, 0.07), transparent),
    var(--ink);
}
.case-tag {
  display: inline-block;
  color: var(--stamp);
  border: 2px solid var(--stamp);
  padding: 4px 12px;
  font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase;
  transform: rotate(-2deg);
  margin-bottom: 28px;
}
.hero h1 {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.04; text-transform: uppercase; letter-spacing: 0.01em;
  max-width: 800px;
}
.hero h1 em { font-style: normal; color: var(--amber); }
.hero p.lead {
  margin: 26px 0 38px; max-width: 620px;
  font-size: 1.15rem; color: var(--bone-dim);
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.ghost {
  color: var(--bone); text-decoration: none;
  font-size: 0.9rem; letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 2px solid var(--amber); padding-bottom: 3px;
}
.ghost:hover { color: var(--amber); }

/* ---------- proof strip ---------- */
.proof {
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
}
.proof-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line);
}
.proof-cell {
  background: var(--ink-2); padding: 34px 20px; text-align: center;
}
.proof-cell .num {
  font-family: "Archivo Black", sans-serif;
  font-size: 2rem; color: var(--amber); display: block;
}
.proof-cell .cap {
  font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--bone-dim); margin-top: 6px; display: block;
}

/* ---------- sections ---------- */
section { padding: 80px 0; border-bottom: 1px solid var(--line); }
.kicker {
  color: var(--amber); font-size: 0.8rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  display: block; margin-bottom: 14px;
}
h2 {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  text-transform: uppercase; line-height: 1.15;
  margin-bottom: 22px; max-width: 720px;
}
.section-body { max-width: 680px; color: var(--bone-dim); font-size: 1.05rem; }
.section-body p + p { margin-top: 16px; }
.section-body strong { color: var(--bone); }

/* ---------- method cards ---------- */
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-top: 44px;
}
.card {
  background: var(--ink-2); border: 1px solid var(--line);
  padding: 28px 24px; position: relative;
}
.card .step {
  font-family: "Archivo Black", sans-serif;
  color: var(--ink); background: var(--amber);
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  font-size: 1rem; margin-bottom: 18px;
}
.card h3 {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.02rem; text-transform: uppercase; letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.card p { color: var(--bone-dim); font-size: 0.95rem; }

/* ---------- case study ---------- */
.case-file {
  background: var(--ink-2); border: 1px solid var(--line);
  margin-top: 44px; position: relative; padding: 36px 32px;
}
.case-file::before {
  content: ""; position: absolute; inset: 10px;
  border: 1px dashed rgba(212, 160, 23, 0.25); pointer-events: none;
}
.case-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap; margin-bottom: 20px;
}
.case-head h3 {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.3rem; text-transform: uppercase;
}
.stamp {
  color: var(--stamp); border: 2px solid var(--stamp);
  padding: 3px 10px; font-size: 0.75rem; letter-spacing: 0.18em;
  text-transform: uppercase; transform: rotate(2deg); white-space: nowrap;
}
.case-file p { color: var(--bone-dim); max-width: 640px; }
.case-file p + p { margin-top: 14px; }
.case-meta {
  margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; gap: 28px; flex-wrap: wrap;
  font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--bone-dim);
}
.case-meta b { color: var(--amber); font-weight: 600; }

/* ---------- form ---------- */
.form-note { color: var(--bone-dim); max-width: 620px; margin-bottom: 36px; }
form { max-width: 680px; }
.field { margin-bottom: 22px; }
label {
  display: block; font-size: 0.8rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--bone-dim); margin-bottom: 8px;
}
label .req { color: var(--stamp); }
input, textarea, select {
  width: 100%; background: var(--ink-3); color: var(--bone);
  border: 1px solid var(--line); padding: 14px;
  font-family: inherit; font-size: 1rem;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--amber);
}
textarea { min-height: 120px; resize: vertical; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-status {
  margin-top: 18px; padding: 14px; font-size: 0.95rem; display: none;
}
.form-status.ok { display: block; background: rgba(46, 125, 50, 0.15); border: 1px solid #2e7d32; color: #a5d6a7; }
.form-status.err { display: block; background: rgba(192, 57, 43, 0.15); border: 1px solid var(--stamp); color: #ef9a9a; }

/* ---------- footer ---------- */
footer { padding: 48px 0; }
.foot {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; flex-wrap: wrap;
}
.foot-links { display: flex; gap: 22px; }
.foot a { color: var(--bone-dim); text-decoration: none; font-size: 0.9rem; }
.foot a:hover { color: var(--amber); }
.foot .fine { color: var(--bone-dim); font-size: 0.8rem; }

@media (max-width: 780px) {
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 52px; }
  section { padding: 56px 0; }
}

@media (max-width: 480px) {
  .logo { font-size: 0.95rem; }
  .nav { gap: 12px; }
  .nav-right { gap: 12px; }
  .btn { padding: 10px 14px; font-size: 0.72rem; white-space: nowrap; }
  .btn-lg { padding: 14px 24px; font-size: 0.85rem; }
}