/* =============================================
   FASCIA — Frontier AI Research Lab
   Obsidian + ice + silver + electric coral.
   Anthropic / Linear / Cursor DNA.
   ============================================= */

:root {
  --obsidian:    #040407;
  --obsidian-2:  #0A0B12;
  --obsidian-3:  #14161F;
  --ice:         #F0F2F7;
  --ice-dim:     rgba(240,242,247,0.72);
  --ice-faint:   rgba(240,242,247,0.42);
  --ice-line:    rgba(240,242,247,0.12);
  --silver:      #B4BCC8;
  --silver-dim:  #7A8290;
  --coral:       #FF4B3E;
  --coral-deep:  #D9301F;
  --coral-soft:  rgba(255,75,62,0.14);
  --mint:        #5EEAD4;
  --muted:       #6D7484;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
  background: var(--obsidian);
  color: var(--ice);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
  min-height: 100vh;
}

/* Subtle ambient */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 88% 12%, rgba(255,75,62,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 8% 88%, rgba(94,234,212,0.05) 0%, transparent 55%),
    linear-gradient(180deg, var(--obsidian) 0%, #06070E 50%, var(--obsidian) 100%);
  pointer-events: none;
}
/* Star/particle texture */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.4;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 12% 22%, rgba(180,188,200,0.9) 0.4px, transparent 1px),
    radial-gradient(circle at 38% 78%, rgba(180,188,200,0.7) 0.4px, transparent 1px),
    radial-gradient(circle at 72% 38%, rgba(180,188,200,0.8) 0.5px, transparent 1px),
    radial-gradient(circle at 92% 72%, rgba(180,188,200,0.6) 0.4px, transparent 1px),
    radial-gradient(circle at 52% 52%, rgba(255,75,62,0.6) 0.5px, transparent 1px);
  background-size: 320px 360px, 280px 300px, 360px 380px, 240px 280px, 420px 400px;
}
main, .nav, .footer { position: relative; z-index: 1; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 0 32px; position: relative; }
.wrap.narrow { max-width: 980px; }

/* ============== TYPE ============== */
h1, h2, h3, h4 {
  font-family: 'Inter Tight', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--ice);
}
h1 { font-size: clamp(3rem, 9vw, 8.5rem); font-weight: 600; letter-spacing: -0.04em; line-height: 0.92; }
h2 { font-size: clamp(2.2rem, 5.5vw, 4.4rem); margin-bottom: 0.35em; font-weight: 600; letter-spacing: -0.03em; }
h3 { font-size: 1.45rem; line-height: 1.15; margin-bottom: 0.4em; font-weight: 600; letter-spacing: -0.015em; }
h4 { font-size: 1rem; font-weight: 600; letter-spacing: 0.02em; }

.serif-italic {
  font-family: 'Fraunces', 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.coral { color: var(--coral); }
.silver { color: var(--silver); }

p { font-size: 1.05rem; color: var(--ice-dim); margin-bottom: 1em; line-height: 1.6; }

a { color: var(--coral); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--ice); }

::selection { background: var(--coral); color: var(--ice); }

.mono {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* Eyebrow w/ blinking coral dot */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 12px var(--coral);
  animation: blink 1.6s infinite;
}
@keyframes blink { 50% { opacity: 0.4; } }

.chapter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.chapter::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--ice-line);
}

/* ============== NAV ============== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4,4,7,0.78);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--ice-line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  max-width: 1380px;
  margin: 0 auto;
}
.brand {
  font-family: 'Inter Tight', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.025em;
  color: var(--ice);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand:hover { color: var(--coral); }
.brand .coral { color: var(--coral); }
.brand-mark { display: inline-flex; flex-shrink: 0; }

.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  color: var(--ice);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}
.nav-links a.active { color: var(--coral); }
.nav-links a:hover { color: var(--coral); }
.nav-links .cta-btn { margin-left: 8px; }

/* ============== BUTTONS ============== */
a.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  background: var(--ice);
  color: var(--obsidian) !important;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: -0.005em;
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--ice);
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
  line-height: 1.2;
  border-radius: 8px;
}
a.btn:hover, button.btn:hover {
  background: var(--coral);
  color: var(--ice) !important;
  border-color: var(--coral);
}
a.btn-coral, button.btn-coral {
  background: var(--coral);
  color: var(--ice) !important;
  border-color: var(--coral);
}
a.btn-coral:hover, button.btn-coral:hover {
  background: var(--ice);
  color: var(--obsidian) !important;
  border-color: var(--ice);
}
a.btn-ghost, button.btn-ghost {
  background: transparent;
  color: var(--ice) !important;
  border: 1px solid var(--ice-line);
}
a.btn-ghost:hover, button.btn-ghost:hover {
  background: var(--ice);
  color: var(--obsidian) !important;
  border-color: var(--ice);
}
.cta-btn {
  padding: 9px 18px !important;
  font-size: 0.85rem !important;
  border-radius: 6px !important;
}
.nav .cta-btn {
  background: var(--coral) !important;
  color: var(--ice) !important;
  border-color: var(--coral) !important;
}
.nav .cta-btn:hover {
  background: var(--ice) !important;
  color: var(--obsidian) !important;
}

/* ============== HERO ============== */
.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero-meta {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-meta .live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--coral);
}
.hero-meta .live::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 12px var(--coral);
  animation: blink 1.4s infinite;
}
.hero h1 { margin: 0; }
.hero h1 .line { display: block; }
.hero h1 .italic-swap {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 400;
  color: var(--coral);
  letter-spacing: -0.02em;
}
.hero-sub {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 80px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--ice-line);
  align-items: start;
}
.hero-sub p {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  color: var(--ice-dim);
  margin-bottom: 0;
  line-height: 1.55;
  max-width: 620px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }

/* Neural network art behind hero */
.neural-art {
  position: absolute;
  top: 0;
  right: -3vw;
  width: 38vw;
  max-width: 580px;
  height: 100%;
  pointer-events: none;
  opacity: 0.55;
  z-index: -1;
}

/* ============== SECTION ============== */
.section { padding: 100px 0; position: relative; }
.section.invert { background: var(--ice); color: var(--obsidian); }
.section.invert h1, .section.invert h2, .section.invert h3, .section.invert h4 { color: var(--obsidian); }
.section.invert p { color: rgba(4,4,7,0.72); }
.section.invert .chapter { color: var(--coral-deep); }
.section.invert .chapter::after { background: rgba(4,4,7,0.14); }
.section.invert a { color: var(--coral-deep); }
.section.invert a:hover { color: var(--obsidian); }
.section.invert .eyebrow { color: var(--coral-deep); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 60px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}
.section-head h2 { flex: 1; min-width: 300px; margin-bottom: 0; }
.section-head .lead {
  max-width: 460px;
  font-size: 1.05rem;
  color: var(--ice-dim);
}
.section.invert .section-head .lead { color: rgba(4,4,7,0.72); }
.section-head .view-all {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--coral);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section.invert .section-head .view-all { color: var(--coral-deep); }
.section-head .view-all::after { content: "→"; transition: transform 0.2s; }
.section-head .view-all:hover::after { transform: translateX(4px); }

/* ============== STATS ============== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--ice-line);
  border-bottom: 1px solid var(--ice-line);
  margin: 60px 0;
}
.stat-cell {
  padding: 50px 28px;
  border-right: 1px solid var(--ice-line);
}
.stat-cell:last-child { border-right: none; }
.stat-cell .num {
  font-family: 'Inter Tight', sans-serif;
  font-size: clamp(3.2rem, 6.5vw, 5.4rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--ice);
  margin-bottom: 14px;
}
.stat-cell .num .small { font-size: 0.4em; opacity: 0.6; vertical-align: top; margin-left: 4px; }
.stat-cell .lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

/* ============== CARDS ============== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.cards-grid.two { grid-template-columns: repeat(2, 1fr); }
.cards-grid.four { grid-template-columns: repeat(4, 1fr); }
.card {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--ice-line);
  border-radius: 14px;
  padding: 32px 28px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: rgba(255,75,62,0.35);
  background: rgba(255,255,255,0.035);
  transform: translateY(-2px);
}
.card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--coral);
  margin-bottom: 14px;
  text-transform: uppercase;
}
.card h3 { margin-bottom: 12px; font-size: 1.35rem; }
.card p { color: var(--ice-dim); margin-bottom: 0; font-size: 0.95rem; }

/* ============== GPT GRID ============== */
.gpt-toolbar {
  position: sticky;
  top: 64px;
  z-index: 50;
  background: rgba(4,4,7,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 18px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--ice-line);
}
.gpt-toolbar-inner {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.gpt-search {
  flex: 1;
  min-width: 220px;
  background: var(--obsidian-2);
  border: 1px solid var(--ice-line);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--ice);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.15s;
}
.gpt-search:focus {
  outline: none;
  border-color: var(--coral);
}
.gpt-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.gpt-filter {
  background: transparent;
  border: 1px solid var(--ice-line);
  color: var(--ice-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}
.gpt-filter:hover { color: var(--ice); border-color: var(--silver); }
.gpt-filter.active {
  background: var(--coral);
  color: var(--ice);
  border-color: var(--coral);
}

.gpt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gpt-tile {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--ice-line);
  border-radius: 14px;
  padding: 24px 22px;
  text-decoration: none;
  color: var(--ice);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.gpt-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--coral);
  transition: width 0.3s;
}
.gpt-tile:hover {
  border-color: rgba(255,75,62,0.4);
  background: rgba(255,255,255,0.04);
  transform: translateY(-2px);
  color: var(--ice);
}
.gpt-tile:hover::before { width: 100%; }
.gpt-tile .gpt-cat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--coral);
}
.gpt-tile h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--ice);
}
.gpt-tile .gpt-desc {
  font-size: 0.88rem;
  color: var(--ice-dim);
  margin: 0;
  line-height: 1.5;
  flex: 1;
}
.gpt-tile .gpt-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--coral);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.gpt-tile .gpt-link::after { content: "↗"; transition: transform 0.2s; }
.gpt-tile:hover .gpt-link::after { transform: translate(2px,-2px); }

.gpt-empty {
  grid-column: 1 / -1;
  padding: 80px 24px;
  text-align: center;
  color: var(--silver-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* ============== CTA STRIP ============== */
.cta-strip {
  background: var(--obsidian-2);
  color: var(--ice);
  padding: 130px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
  border-top: 1px solid var(--ice-line);
  border-bottom: 1px solid var(--ice-line);
}
.cta-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, rgba(255,75,62,0.20), transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(94,234,212,0.12), transparent 50%);
  pointer-events: none;
}
.cta-strip .wrap { position: relative; z-index: 1; max-width: 1000px; }
.cta-strip h2 { color: var(--ice); margin-bottom: 22px; }
.cta-strip p { font-size: 1.18rem; max-width: 620px; margin: 0 auto 32px; color: rgba(240,242,247,0.8); }
.cta-strip .chapter { color: var(--coral); }
.cta-strip .chapter::after { background: rgba(255,75,62,0.4); }
.cta-strip .hero-cta { justify-content: center; }

/* ============== PAGE HEADER ============== */
.page-header {
  padding: 80px 0 50px;
  border-bottom: 1px solid var(--ice-line);
}
.page-header .breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 26px;
}
.page-header h1 {
  font-size: clamp(3rem, 9vw, 7.5rem);
  margin: 0 0 26px;
  line-height: 0.92;
}
.page-header p { font-size: 1.18rem; color: var(--ice-dim); max-width: 760px; line-height: 1.55; }

/* ============== FORM ============== */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.form-aside h3 { margin-bottom: 14px; font-size: 1.9rem; line-height: 1.02; }
.form-aside p { font-size: 1rem; }
.form-aside ul { list-style: none; margin: 30px 0; }
.form-aside li {
  padding: 20px 0;
  border-top: 1px solid var(--ice-line);
}
.form-aside li:last-child { border-bottom: 1px solid var(--ice-line); }
.form-aside li strong {
  display: block;
  color: var(--ice);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.form-aside li span { color: var(--ice-dim); font-size: 0.95rem; line-height: 1.55; }

.contact-form {
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--ice-line);
  border-radius: 16px;
  padding: 44px 40px;
  position: relative;
}
.field { margin-bottom: 24px; }
.field label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ice);
  margin-bottom: 10px;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--obsidian-2);
  border: 1px solid var(--ice-line);
  padding: 12px 14px;
  color: var(--ice);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  border-radius: 8px;
  transition: border-color 0.2s;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255,75,62,0.16);
}
.field select option { background: var(--obsidian-2); color: var(--ice); }
.field textarea { min-height: 130px; resize: vertical; font-family: inherit; }
.field .hint { font-size: 0.85rem; color: var(--silver-dim); margin-top: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.hp { position: absolute; left: -10000px; }
.contact-form button.btn { display: flex; width: 100%; margin-top: 12px; }

/* ============== FAQ-style (about) ============== */
.cap-list { border-top: 1px solid var(--ice-line); }
.cap-row {
  display: grid;
  grid-template-columns: 110px 1fr 1.5fr 80px;
  gap: 36px;
  align-items: baseline;
  padding: 36px 0;
  border-bottom: 1px solid var(--ice-line);
  transition: all 0.2s;
  cursor: pointer;
}
.cap-row:hover { padding-left: 16px; padding-right: 16px; background: rgba(255,255,255,0.025); }
.cap-row .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--coral);
}
.cap-row h3 { font-size: 1.7rem; margin: 0; letter-spacing: -0.015em; }
.cap-row p { font-size: 0.98rem; margin: 0; color: var(--ice-dim); }
.cap-row .arrow {
  font-family: 'JetBrains Mono', monospace;
  color: var(--silver-dim);
  font-size: 1.1rem;
  text-align: right;
  transition: all 0.2s;
}
.cap-row:hover .arrow { color: var(--coral); transform: translateX(4px); }

/* ============== FOOTER ============== */
.footer {
  background: var(--obsidian);
  color: var(--ice);
  padding: 90px 0 32px;
  border-top: 1px solid var(--ice-line);
}
.footer-massive {
  margin-bottom: 70px;
}
.footer-massive h2 {
  font-family: 'Inter Tight', sans-serif;
  font-size: clamp(4rem, 13vw, 13rem);
  font-weight: 700;
  line-height: 0.85;
  color: var(--ice);
  margin: 0;
  letter-spacing: -0.05em;
}
.footer-massive h2 .coral { color: var(--coral); }
.footer-massive h2 .italic { font-family: 'Fraunces', serif; font-style: italic; font-weight: 400; }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer .brand { color: var(--ice); margin-bottom: 18px; display: inline-flex; }
.footer .brand:hover { color: var(--coral); }
.footer-brand p { font-size: 0.95rem; max-width: 360px; color: var(--silver-dim); }
.footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  color: var(--ice);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  margin-bottom: 10px;
  text-decoration: none;
}
.footer-col a:hover { color: var(--coral); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 60px;
  padding-top: 26px;
  border-top: 1px solid var(--ice-line);
  flex-wrap: wrap;
  gap: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver-dim);
}
.socials { display: flex; gap: 10px; }
.socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--ice-line);
  color: var(--ice);
  text-decoration: none;
  transition: all 0.15s;
}
.socials a:hover {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ice);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 1024px) {
  .cards-grid, .cards-grid.four { grid-template-columns: repeat(2, 1fr); }
  .gpt-grid { grid-template-columns: repeat(3, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(2) { border-right: none; }
  .stat-cell:nth-child(-n+2) { border-bottom: 1px solid var(--ice-line); }
  .neural-art { opacity: 0.3; width: 50vw; }
}
@media (max-width: 768px) {
  .nav-inner { padding: 14px 18px; }
  .nav-links { gap: 14px; }
  .nav-links a:not(.cta-btn) { display: none; }
  .wrap { padding: 0 18px; }
  .hero { padding: 50px 0 40px; }
  .hero-sub { grid-template-columns: 1fr; gap: 28px; }
  .hero-cta { justify-content: flex-start; }
  .neural-art { display: none; }
  .section { padding: 70px 0; }
  .section-head { flex-direction: column; align-items: flex-start; margin-bottom: 40px; }
  .cards-grid, .cards-grid.two, .cards-grid.four { grid-template-columns: 1fr; }
  .gpt-grid { grid-template-columns: repeat(2, 1fr); }
  .gpt-toolbar { top: 56px; }
  .cap-row { grid-template-columns: 60px 1fr; gap: 16px; padding: 24px 0; }
  .cap-row p, .cap-row .arrow { grid-column: 2; }
  .cap-row .arrow { display: none; }
  .form-grid { grid-template-columns: 1fr; gap: 40px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
  .stat-cell { border-right: none; border-bottom: 1px solid var(--ice-line); }
  .stat-cell:last-child { border-bottom: none; }
  .gpt-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}