/* ArkDrive — Ocean Depth Theme */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Ocean depth palette — pulled from logo */
  --abyss: #03101F;
  --deep: #061a2e;
  --navy: #0c2a45;
  --steel: #1B4F7A;
  --mid: #2A8FBD;
  --cyan: #4FD8E8;
  --cyan-bright: #7EE8F2;
  --foam: #C7F2F7;
  --ink: #FFFFFF;
  --mute: #8AA8C2;
  --mute-soft: #B5CCDF;
  --border: rgba(127, 200, 232, 0.14);
  --border-strong: rgba(127, 200, 232, 0.28);
  --glow: rgba(79, 216, 232, 0.45);

  --container: 1240px;
  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { background: var(--abyss); color: var(--ink); }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--cyan); color: var(--abyss); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- Type ---------- */
.display, h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.02em; }
.mono { font-family: var(--font-mono); font-weight: 500; letter-spacing: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: ''; width: 24px; height: 1px; background: currentColor;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) { .container { padding: 0 20px; } }

.section { padding: 120px 0; position: relative; }
@media (max-width: 720px) { .section { padding: 80px 0; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 26px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 220ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-bright) 100%);
  color: var(--abyss);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.1) inset,
    0 8px 32px -8px var(--glow),
    0 2px 0 rgba(255,255,255,0.25) inset;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.15) inset,
    0 16px 40px -8px var(--glow),
    0 2px 0 rgba(255,255,255,0.3) inset;
}
.btn-ghost {
  background: rgba(255,255,255,0.03);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(79, 216, 232, 0.06);
  border-color: var(--cyan);
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  background: linear-gradient(180deg, rgba(12, 42, 69, 0.4) 0%, rgba(6, 26, 46, 0.4) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 280ms cubic-bezier(0.2, 0.8, 0.2, 1);
  backdrop-filter: blur(12px);
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 0%), rgba(79, 216, 232, 0.08), transparent 40%);
  opacity: 0;
  transition: opacity 280ms ease;
  pointer-events: none;
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.card:hover::before { opacity: 1; }

.icon-pill {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 216, 232, 0.15), rgba(42, 143, 189, 0.05));
  border: 1px solid var(--border-strong);
  color: var(--cyan);
  flex-shrink: 0;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 76px;
  background: rgba(3, 16, 31, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.nav-logo img { width: 36px; height: 36px; }
.nav-logo span:first-of-type { color: var(--cyan); }
.nav-logo span:last-of-type { color: var(--ink); font-weight: 400; }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 14px; font-weight: 500;
  color: var(--mute-soft);
  transition: color 180ms;
}
.nav-links a:hover { color: var(--cyan); }
@media (max-width: 960px) { .nav-links { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 76px;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-canvas {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-vignette {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse 80% 60% at 50% 10%, transparent, rgba(3, 16, 31, 0.4) 70%, var(--abyss)),
    linear-gradient(180deg, transparent 60%, var(--abyss));
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; padding: 80px 0; width: 100%; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(79, 216, 232, 0.08);
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  color: var(--cyan-bright);
  letter-spacing: 0.16em; text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 {
  font-size: clamp(40px, 6.5vw, 88px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 14ch;
  margin-bottom: 28px;
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-bright) 50%, #fff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}
.hero p.lead {
  max-width: 56ch;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.65;
  color: var(--mute-soft);
  margin-bottom: 40px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 48px; }
.hero-trust {
  display: grid; grid-template-columns: repeat(3, auto);
  gap: 32px;
  align-items: center;
}
@media (max-width: 720px) { .hero-trust { grid-template-columns: 1fr; gap: 16px; } }
.hero-trust-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--mute-soft);
}
.hero-trust-item svg { color: var(--cyan); }

.hero-terminal {
  position: absolute;
  right: 4%;
  top: 50%;
  transform: translateY(-50%);
  width: 380px;
  z-index: 2;
}
@media (max-width: 1100px) { .hero-terminal { display: none; } }

/* Scroll cue */
.scroll-cue {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--mute);
}
.scroll-cue .line {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Section title block ---------- */
.section-head { max-width: 720px; margin-bottom: 64px; }
.section-head h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 16px 0 20px;
}
.section-head p {
  font-size: 17px; line-height: 1.7;
  color: var(--mute-soft);
  max-width: 60ch;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center p { margin: 0 auto; }

/* ---------- Manifesto ---------- */
.manifesto {
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(79, 216, 232, 0.06), transparent 70%),
    var(--abyss);
}
.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.6vw, 48px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  max-width: 22ch;
  margin: 0 auto;
}
.manifesto-quote .strike { color: var(--mute); position: relative; }
.manifesto-quote .strike::after {
  content: ''; position: absolute; left: 0; right: 0; top: 55%;
  height: 2px; background: var(--mute);
}
.manifesto-quote .em {
  background: linear-gradient(135deg, var(--cyan-bright), var(--cyan));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

/* ---------- Compare grid (problem/solution) ---------- */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: rgba(6, 26, 46, 0.4);
}
@media (max-width: 880px) { .compare { grid-template-columns: 1fr; } }
.compare-col { padding: 40px; }
.compare-col h3 {
  font-size: 14px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.compare-col.before h3 { color: var(--mute); }
.compare-col.after h3 { color: var(--cyan); }
.compare-divider {
  width: 1px; background: var(--border);
}
@media (max-width: 880px) { .compare-divider { width: 100%; height: 1px; } }
.compare-row {
  display: flex; gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 15px;
  line-height: 1.55;
}
.compare-row:last-child { border-bottom: none; }
.compare-row svg { flex-shrink: 0; margin-top: 2px; }
.compare-col.before .compare-row { color: var(--mute-soft); }
.compare-col.before .compare-row svg { color: #d97a8a; opacity: 0.7; }
.compare-col.after .compare-row { color: var(--ink); }
.compare-col.after .compare-row svg { color: var(--cyan); }

/* ---------- Architecture ---------- */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 880px) { .arch-grid { grid-template-columns: 1fr; } }
.arch-card { padding: 40px; min-height: 360px; display: flex; flex-direction: column; }
.arch-card h3 { font-size: 24px; font-weight: 600; margin: 24px 0 12px; }
.arch-card p { color: var(--mute-soft); font-size: 15px; line-height: 1.65; margin-bottom: 24px; }
.arch-card .diagram {
  margin-top: auto;
  height: 140px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(79, 216, 232, 0.04), transparent),
    radial-gradient(circle at 50% 50%, rgba(79, 216, 232, 0.08), transparent 60%);
  position: relative;
  overflow: hidden;
}

/* ---------- Features grid ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.feature {
  background: var(--abyss);
  padding: 36px 32px;
  position: relative;
  transition: background 280ms ease;
  min-height: 240px;
}
.feature:hover { background: rgba(12, 42, 69, 0.5); }
.feature h3 { font-size: 18px; font-weight: 600; margin: 22px 0 10px; }
.feature p { color: var(--mute-soft); font-size: 14px; line-height: 1.6; }
.feature-num {
  position: absolute; top: 24px; right: 28px;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--mute);
  letter-spacing: 0.1em;
}

/* ---------- ArkStream ---------- */
.arkstream {
  background:
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(79, 216, 232, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 60% at 20% 70%, rgba(42, 143, 189, 0.08), transparent 60%),
    var(--abyss);
}
.arkstream-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 960px) { .arkstream-inner { grid-template-columns: 1fr; gap: 40px; } }
.arkstream-list { list-style: none; display: flex; flex-direction: column; gap: 24px; margin-top: 32px; }
.arkstream-list li { display: flex; gap: 16px; }
.arkstream-list h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.arkstream-list p { font-size: 14px; color: var(--mute-soft); line-height: 1.55; }

.video-mock {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--navy) 0%, var(--deep) 100%);
  padding: 14px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6), 0 0 80px -20px var(--glow);
}
.video-mock-screen {
  aspect-ratio: 16/10;
  border-radius: 10px;
  background:
    linear-gradient(135deg, var(--steel), var(--mid));
  position: relative; overflow: hidden;
  display: grid; place-items: center;
}
.video-mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 14px;
  width: 100%;
  height: 100%;
}
.video-tile {
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; flex-direction: column;
  position: relative;
  overflow: hidden;
}
.video-tile-thumb {
  flex: 1;
  background: linear-gradient(135deg, rgba(79,216,232,0.2), rgba(27,79,122,0.4));
  position: relative;
}
.video-tile-thumb::after {
  content: '▶';
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
}
.video-tile-meta {
  padding: 8px 10px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.7);
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 80px;
}
@media (max-width: 960px) { .pricing-grid { grid-template-columns: 1fr; } }
.plan {
  position: relative;
  padding: 36px;
  background: linear-gradient(180deg, rgba(12, 42, 69, 0.5) 0%, rgba(6, 26, 46, 0.5) 100%);
  border: 1px solid var(--border);
  border-radius: 18px;
  display: flex; flex-direction: column;
  transition: all 280ms ease;
}
.plan:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.plan-name { font-family: var(--font-display); font-size: 22px; font-weight: 700; letter-spacing: 0.02em; margin-bottom: 6px; }
.plan-tag { font-family: var(--font-mono); font-size: 11px; color: var(--cyan); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 28px; }
.plan-price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 6px; }
.plan-price .num { font-family: var(--font-display); font-size: 48px; font-weight: 700; letter-spacing: -0.03em; }
.plan-price .sub { font-size: 14px; color: var(--mute); }
.plan-billed { font-size: 13px; color: var(--mute); margin-bottom: 32px; }
.plan-features { list-style: none; flex: 1; display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.plan-features li { display: flex; gap: 10px; font-size: 14px; line-height: 1.5; color: var(--mute-soft); }
.plan-features li svg { flex-shrink: 0; margin-top: 2px; color: var(--cyan); }
.plan.featured {
  background: linear-gradient(180deg, rgba(79, 216, 232, 0.08) 0%, rgba(42, 143, 189, 0.04) 100%);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 30px 60px -30px var(--glow), inset 0 0 60px -20px rgba(79, 216, 232, 0.1);
}
.plan.featured .plan-features li { color: var(--ink); }
.plan-popular {
  position: absolute; top: -12px; right: 24px;
  background: var(--cyan); color: var(--abyss);
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px;
}

/* ROI calculator */
.roi {
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 40px;
  background:
    radial-gradient(ellipse 60% 80% at 100% 0%, rgba(79, 216, 232, 0.1), transparent 60%),
    rgba(6, 26, 46, 0.6);
}
.roi-head { display: flex; justify-content: space-between; gap: 24px; margin-bottom: 32px; align-items: end; }
@media (max-width: 720px) { .roi-head { flex-direction: column; align-items: flex-start; } }
.roi-head h3 { font-size: 24px; font-weight: 600; margin-bottom: 6px; }
.roi-head p { color: var(--mute-soft); font-size: 14px; max-width: 50ch; }
.roi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
@media (max-width: 720px) { .roi-grid { grid-template-columns: 1fr; } }
.roi-input-group { display: flex; flex-direction: column; gap: 22px; }
.roi-field label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 13px; color: var(--mute-soft); margin-bottom: 12px;
}
.roi-field label .val { font-family: var(--font-mono); color: var(--cyan); font-weight: 500; }
.roi-field input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--cyan) var(--pct, 50%), rgba(127, 200, 232, 0.15) var(--pct, 50%));
  border-radius: 999px;
  outline: none;
}
.roi-field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--cyan);
  border: 3px solid var(--abyss);
  box-shadow: 0 0 0 1px var(--cyan), 0 0 12px var(--glow);
  cursor: pointer;
}
.roi-field input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--cyan);
  border: 3px solid var(--abyss);
  box-shadow: 0 0 0 1px var(--cyan);
  cursor: pointer;
}
.roi-output {
  background: rgba(3, 16, 31, 0.6);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  display: flex; flex-direction: column; gap: 20px;
}
.roi-line { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 14px; border-bottom: 1px dashed var(--border); }
.roi-line:last-of-type { border-bottom: none; padding-bottom: 0; }
.roi-line .lbl { font-size: 13px; color: var(--mute-soft); }
.roi-line .num { font-family: var(--font-mono); font-size: 18px; font-weight: 500; }
.roi-line.cloud .num { color: #d97a8a; text-decoration: line-through; opacity: 0.7; }
.roi-line.ark .num { color: var(--cyan); }
.roi-line.save { padding-top: 6px; }
.roi-line.save .lbl { font-size: 14px; color: var(--ink); font-weight: 500; }
.roi-line.save .num {
  font-size: 32px; font-weight: 700;
  background: linear-gradient(135deg, var(--cyan-bright), var(--cyan));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-display);
}

/* ---------- FAQ ---------- */
.faq {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  cursor: pointer;
}
.faq-q {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 24px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.01em;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q .toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--cyan);
  flex-shrink: 0;
  transition: transform 280ms ease, background 280ms ease;
}
.faq-item[open] .toggle { transform: rotate(45deg); background: var(--cyan); color: var(--abyss); }
.faq-a {
  padding-top: 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mute-soft);
  max-width: 70ch;
}

/* ---------- Final CTA ---------- */
.final-cta {
  position: relative;
  border-top: 1px solid var(--border);
  overflow: hidden;
}
.final-cta-canvas { position: absolute; inset: 0; z-index: 0; opacity: 0.5; }
.final-cta-content {
  position: relative; z-index: 1;
  text-align: center;
  padding: 120px 0;
}
.brand-mark {
  display: block;
  width: 148px;
  height: auto;
  margin: 0 auto 36px;
  filter:
    drop-shadow(0 0 24px rgba(79, 216, 232, 0.35))
    drop-shadow(0 12px 32px rgba(3, 16, 31, 0.6));
  animation: brandFloat 6s ease-in-out infinite;
  transition: filter 320ms ease, transform 320ms ease;
}
.brand-mark:hover {
  filter:
    drop-shadow(0 0 36px rgba(79, 216, 232, 0.55))
    drop-shadow(0 14px 36px rgba(3, 16, 31, 0.7));
}
@keyframes brandFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (max-width: 720px) {
  .brand-mark { width: 116px; margin-bottom: 28px; }
}
.final-cta h2 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  max-width: 18ch;
  margin: 20px auto 24px;
}
.final-cta p {
  font-size: 18px;
  color: var(--mute-soft);
  max-width: 56ch;
  margin: 0 auto 40px;
  line-height: 1.6;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 40px;
  background: var(--abyss);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
@media (max-width: 720px) { .footer-top { grid-template-columns: 1fr 1fr; } }
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 14px; color: var(--mute-soft); transition: color 180ms; }
.footer-col a:hover { color: var(--cyan); }
.footer-brand p { color: var(--mute); font-size: 14px; max-width: 36ch; margin-top: 14px; line-height: 1.6; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px;
  font-size: 12px; color: var(--mute);
}
@media (max-width: 720px) { .footer-bottom { flex-direction: column; gap: 8px; } }

/* ---------- Modal ---------- */
.modal-back {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(3, 16, 31, 0.86);
  backdrop-filter: blur(14px);
  display: grid; place-items: center;
  padding: 24px;
  animation: fadeIn 200ms ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-panel {
  width: min(560px, 100%);
  background:
    radial-gradient(ellipse 80% 60% at 0% 0%, rgba(79, 216, 232, 0.12), transparent 60%),
    var(--deep);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 36px;
  position: relative;
  animation: slideUp 280ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes slideUp { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-close {
  position: absolute; top: 18px; right: 18px;
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--mute);
  transition: all 180ms;
}
.modal-close:hover { color: var(--ink); border-color: var(--border-strong); }
.modal-panel h3 { font-size: 24px; font-weight: 600; margin: 12px 0 14px; letter-spacing: -0.02em; }
.modal-panel p { color: var(--mute-soft); margin-bottom: 28px; line-height: 1.6; }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms cubic-bezier(0.2, 0.8, 0.2, 1), transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.in { opacity: 1; transform: translateY(0); }