/* =========================================================
   C2B TEAM — c2b.team
   Design System: Silicon Valley / Unicorn / Performance
   ========================================================= */

:root {
  /* Colors */
  --bg-0: #0A0A0A;
  --bg-1: #111111;
  --bg-2: #1A1A1A;
  --bg-light: #F5F5F7;
  --bg-light-2: #FFFFFF;

  --fg-0: #FFFFFF;
  --fg-1: #E8E8EA;
  --fg-2: #9A9AA0;
  --fg-3: #5A5A60;

  --fg-dark-0: #0A0A0A;
  --fg-dark-1: #2A2A2E;
  --fg-dark-2: #6A6A70;

  --accent: #00D4FF;          /* electric cyan — data/performance */
  --accent-hot: #FF3B30;      /* racing red — urgency/action */
  --accent-warm: #FFC72C;     /* agency amber */
  --accent-cool: #9D6BFF;     /* hr violet */

  --line: rgba(255,255,255,0.08);
  --line-dark: rgba(0,0,0,0.08);

  /* Type */
  --font-sans: 'Inter', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
  --font-serif: 'Instrument Serif', 'Times New Roman', Georgia, serif;

  /* Sizing */
  --container: 1240px;
  --radius: 4px;
  --radius-lg: 12px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-0);
  color: var(--fg-0);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Global film grain — premium tactile feel */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='5'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav-logo {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 2px;
}

.logo-mark { color: var(--fg-0); }
.logo-mark-accent { color: var(--accent); font-weight: 500; }

.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-2);
  transition: color 0.2s var(--ease);
}
.nav-links a:hover { color: var(--fg-0); }

.nav-cta {
  font-size: 13px !important;
  padding: 10px 18px !important;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all 0.2s var(--ease);
  cursor: pointer;
  border: none;
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: #33DEFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.25);
}
.btn-ghost {
  background: transparent;
  color: var(--fg-0);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.4);
}
.btn-lg {
  padding: 18px 36px;
  font-size: 16px;
}

/* =========================================================
   COMMON
   ========================================================= */
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 12px;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 999px;
  margin-bottom: 28px;
}
.section-tag.light {
  color: var(--fg-dark-0);
  border-color: rgba(0,0,0,0.2);
}

.mega-title {
  font-size: clamp(40px, 7vw, 104px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--fg-dark-0);
  margin-bottom: 32px;
}
.mega-title .serif-italic {
  font-size: 1.06em;
  line-height: 0.95;
  letter-spacing: -0.025em;
}
.mega-title.light { color: var(--fg-0); }

.accent { color: var(--accent); }

.slogan {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-top: 48px;
  text-align: center;
}
.slogan.light {
  color: var(--accent);
}

.section-sub {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--fg-2);
  margin-bottom: 56px;
  max-width: 640px;
}

/* =========================================================
   1. HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-0);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%);
}
.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 78% 20%, rgba(255, 90, 31, 0.28) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 12% 75%, rgba(0, 212, 255, 0.22) 0%, transparent 60%),
    radial-gradient(ellipse 70% 55% at 50% 100%, rgba(157, 107, 255, 0.18) 0%, transparent 55%);
  filter: blur(20px);
  animation: aurora 14s ease-in-out infinite alternate;
}
@keyframes aurora {
  0%   { transform: translate3d(0, 0, 0) scale(1); opacity: 0.9; }
  100% { transform: translate3d(-2%, 1%, 0) scale(1.06); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2);
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
  margin-bottom: 32px;
}
.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(44px, 8vw, 128px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--fg-0);
  margin-bottom: 28px;
  max-width: 1180px;
}
.hero-title .serif-italic {
  font-size: 1.08em;
  line-height: 1;
  letter-spacing: -0.025em;
  background: linear-gradient(100deg, #00d4ff 0%, #9d6bff 55%, #ff5a1f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

.hero-sub {
  font-size: clamp(17px, 1.6vw, 22px);
  color: var(--fg-1);
  line-height: 1.5;
  max-width: 620px;
  margin-bottom: 40px;
}
.hero-sub strong { color: var(--fg-0); font-weight: 600; }

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  max-width: 800px;
}
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meta-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--fg-0);
  letter-spacing: -0.02em;
}
.meta-label {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--fg-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.meta-divider {
  width: 1px;
  height: 32px;
  background: var(--line);
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 2;
}
.scroll-hint span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--fg-3);
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.4); opacity: 0.5; }
}

/* =========================================================
   2. PROBLEM
   ========================================================= */
.problem {
  background: var(--bg-light);
  color: var(--fg-dark-0);
  padding: 140px 0;
}
.problem .section-tag {
  color: var(--accent-hot);
  border-color: rgba(255, 59, 48, 0.3);
}
.problem .mega-title {
  margin-bottom: 64px;
}
.strike {
  position: relative;
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--accent-hot);
}
.strike::after {
  content: '';
  position: absolute;
  top: 58%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-hot);
  transform: rotate(-1deg);
  opacity: 0.8;
}

.problem-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 48px;
  max-width: 720px;
}
.problem-list li {
  font-size: clamp(22px, 2.4vw, 34px);
  font-weight: 600;
  color: var(--fg-dark-1);
  display: flex;
  align-items: center;
  gap: 18px;
  letter-spacing: -0.01em;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-dark);
}
.problem-list .x {
  font-size: 28px;
  font-weight: 400;
  color: var(--accent-hot);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-hot);
  border-radius: 50%;
  flex-shrink: 0;
}

.problem-close {
  font-size: clamp(18px, 1.8vw, 24px);
  max-width: 760px;
  color: var(--fg-dark-1);
  line-height: 1.4;
}
.problem-close strong {
  color: var(--accent-hot);
  font-weight: 700;
}

/* =========================================================
   3. SOLUTION
   ========================================================= */
.solution {
  background: var(--bg-0);
  padding: 140px 0;
}
.solution-intro {
  font-size: clamp(18px, 2vw, 26px);
  color: var(--fg-1);
  max-width: 760px;
  margin-bottom: 72px;
  line-height: 1.4;
}
.solution-intro strong { color: var(--accent); font-weight: 600; }

.flow {
  display: flex;
  align-items: stretch;
  gap: 12px;
  flex-wrap: wrap;
}
.flow-step {
  flex: 1 1 180px;
  min-width: 180px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease);
}
.flow-step:hover {
  border-color: rgba(0, 212, 255, 0.4);
  transform: translateY(-4px);
}
.flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.1em;
}
.flow-step h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.flow-step p {
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.5;
}
.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 24px;
  font-weight: 300;
  flex-shrink: 0;
  padding: 0 4px;
}

/* =========================================================
   4. WHAT C2B IS
   ========================================================= */
.what {
  background: var(--bg-light-2);
  color: var(--fg-dark-0);
  padding: 140px 0;
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.split-right {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.6;
  color: var(--fg-dark-1);
}
.split-right .lead {
  font-size: clamp(22px, 2.4vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  color: var(--fg-dark-0);
}
.split-right p { margin-bottom: 20px; }
.split-right strong { color: var(--fg-dark-0); font-weight: 700; }

.tag-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 10px 16px;
  background: var(--fg-dark-0);
  color: var(--fg-0);
  border-radius: var(--radius);
  margin-top: 8px;
}

/* =========================================================
   5. WHO IT'S FOR
   ========================================================= */
.who {
  background: var(--bg-0);
  padding: 140px 0;
}
.who .mega-title { margin-bottom: 64px; }

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.3s var(--ease);
}
.pillar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: currentColor;
  opacity: 0.8;
}
.pillar-brands { color: var(--accent); }
.pillar-agencies { color: var(--accent-warm); }
.pillar-hr { color: var(--accent-cool); }

.pillar:hover {
  transform: translateY(-6px);
  border-color: currentColor;
}
.pillar-icon {
  font-size: 28px;
  color: currentColor;
  margin-bottom: 20px;
  opacity: 0.9;
}
.pillar-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: currentColor;
  margin-bottom: 18px;
}
.pillar h3 {
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--fg-0);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.pillar ul {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.pillar ul li {
  font-size: 15px;
  color: var(--fg-1);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.pillar ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: currentColor;
  opacity: 0.6;
}
.pillar-cta {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: currentColor;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  transition: padding 0.2s var(--ease);
}
.pillar-cta:hover { padding-left: 4px; }

/* =========================================================
   6. CORE EXPERIENCES
   ========================================================= */
.experiences {
  background: var(--bg-light-2);
  color: var(--fg-dark-0);
  padding: 140px 0;
}
.experiences .mega-title { margin-bottom: 16px; }
.experiences .section-sub {
  color: var(--fg-dark-2);
  margin-bottom: 72px;
}

.exp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.exp-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.exp-mockup {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  background: #0A0A0A;
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.6);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease), border-color 0.4s var(--ease);
}
.exp-mockup > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease);
}
.exp-card:hover .exp-mockup {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.14);
  box-shadow: 0 40px 100px -28px rgba(0, 212, 255, 0.15);
}
.exp-card:hover .exp-mockup > img { transform: scale(1.035); }
.exp-mockup::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(165deg, rgba(255,255,255,0.06) 0%, transparent 35%),
    linear-gradient(to top, rgba(0,0,0,0.35) 0%, transparent 40%);
  pointer-events: none;
}
.exp-card h3 {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.exp-card h3::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(0,0,0,0.08);
  transform: translateY(-0.3em);
}
.exp-card h3 {
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--fg-dark-0);
}
.exp-card p {
  font-size: 16px;
  line-height: 1.5;
  color: var(--fg-dark-2);
  max-width: 520px;
}

/* =========================================================
   7. OUTCOMES
   ========================================================= */
.outcomes {
  background: var(--bg-0);
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}
.outcomes::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 40%, rgba(0, 212, 255, 0.08), transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(157, 107, 255, 0.05), transparent 50%);
  pointer-events: none;
}
.outcomes > .container { position: relative; z-index: 1; }
.outcomes .mega-title { margin-bottom: 72px; }

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 48px;
}
.metric {
  background: var(--bg-1);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background 0.3s var(--ease);
}
.metric:hover { background: var(--bg-2); }
.metric-value {
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--fg-0);
  font-feature-settings: "tnum";
}
.metric-unit {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.7em;
  margin-left: 2px;
}
.metric-label {
  font-size: 14px;
  color: var(--fg-2);
  line-height: 1.5;
}

/* =========================================================
   8. PERFORMANCE DNA
   ========================================================= */
.dna {
  background: var(--bg-light);
  color: var(--fg-dark-0);
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}
.dna-hud {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.04) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.04) 0 1px, transparent 1px 60px);
  mask-image: linear-gradient(to bottom, transparent, #000 30%, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 30%, #000 70%, transparent);
}
.dna > .container { position: relative; z-index: 1; }
.dna-copy {
  max-width: 720px;
  margin: 32px 0 56px;
}
.dna-copy p {
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.5;
  color: var(--fg-dark-1);
  margin-bottom: 12px;
}
.dna-copy strong { color: var(--fg-dark-0); font-weight: 700; }
.dna-copy .muted {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg-dark-2);
  letter-spacing: 0.04em;
}

.telemetry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 560px;
  padding: 24px;
  background: var(--fg-dark-0);
  border-radius: var(--radius-lg);
}
.tele-row {
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-1);
  letter-spacing: 0.1em;
}
.bar {
  height: 8px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}
.bar i {
  display: block;
  height: 100%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  width: 0;
  animation: barFill 1.4s var(--ease) forwards;
}
.tele-row .v {
  text-align: right;
  color: var(--accent);
  font-weight: 600;
}
@keyframes barFill {
  from { width: 0; }
}

/* =========================================================
   9. SOCIAL PROOF
   ========================================================= */
.proof {
  background: var(--bg-0);
  padding: 140px 0;
}
.proof .mega-title { margin-bottom: 56px; }

.marquee {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  overflow: hidden;
  padding: 24px 0;
  mask-image: linear-gradient(to right, transparent 0, #000 10%, #000 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 10%, #000 90%, transparent 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 60s linear infinite;
}
.marquee:hover .marquee-track {
  animation-play-state: paused;
}
.marquee-row {
  display: flex;
  align-items: center;
  gap: 72px;
  padding: 0 36px;
  flex-shrink: 0;
}
.marquee-row img {
  height: 36px;
  width: auto;
  max-width: 140px;
  filter: brightness(0) invert(1);
  opacity: 0.5;
  transition: opacity 0.3s var(--ease), filter 0.3s var(--ease);
}
.marquee-row img:hover {
  opacity: 1;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* =========================================================
   10. POSITIONING CLOSER
   ========================================================= */
.closer {
  background: var(--bg-0);
  padding: 160px 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.closer::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}
.closer-line {
  font-size: clamp(48px, 9vw, 144px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.045em;
  color: var(--fg-0);
  text-align: left;
  max-width: 1100px;
  position: relative;
}
.closer-line .serif-italic {
  font-size: 1.08em;
  line-height: 0.95;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, #00d4ff 0%, #9d6bff 55%, #ff5a1f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

/* =========================================================
   11. FINAL CTA
   ========================================================= */
.final {
  background: var(--accent);
  color: #000;
  padding: 140px 0;
  position: relative;
  overflow: hidden;
}
.final::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.5;
}
.final > .container { position: relative; z-index: 1; }
.final .section-tag {
  color: #000;
  border-color: rgba(0,0,0,0.25);
}
.final .mega-title { color: #000; margin-bottom: 20px; }
.final-sub {
  font-size: clamp(18px, 1.8vw, 22px);
  color: rgba(0,0,0,0.75);
  margin-bottom: 48px;
  font-weight: 500;
}
.final-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.final .btn-primary {
  background: #000;
  color: var(--accent);
}
.final .btn-primary:hover {
  background: #111;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.final .btn-ghost {
  background: transparent;
  color: #000;
  border-color: rgba(0,0,0,0.25);
}
.final .btn-ghost:hover {
  background: rgba(0,0,0,0.05);
  border-color: #000;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--bg-0);
  padding: 56px 0 40px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.footer-brand .logo-mark {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.footer-brand p {
  margin-top: 6px;
  font-size: 13px;
  color: var(--fg-2);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--fg-1);
  text-align: center;
}
.footer-contact a { color: var(--accent); }
.footer-contact span { color: var(--fg-2); font-size: 13px; }
.footer-copy {
  font-size: 12px;
  color: var(--fg-3);
  font-family: var(--font-mono);
  text-align: right;
  letter-spacing: 0.04em;
}

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   RESPONSIVE — TABLET
   ========================================================= */
@media (max-width: 960px) {
  .container { padding: 0 24px; }
  .nav { padding: 16px 24px; }
  .nav-links { display: none; }

  .hero { padding: 120px 0 60px; }
  .hero-meta { gap: 20px; }
  .meta-divider { display: none; }

  .split {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pillars { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }

  .flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-contact { text-align: center; }
  .footer-copy { text-align: center; }

  .problem, .solution, .what, .who, .experiences, .outcomes, .dna, .proof, .closer, .final {
    padding: 96px 0;
  }
}

/* =========================================================
   RESPONSIVE — MOBILE
   ========================================================= */
@media (max-width: 560px) {
  .container { padding: 0 20px; }
  .nav { padding: 14px 20px; }
  .nav-cta { display: none; }

  .marquee-row { gap: 48px; padding: 0 24px; }
  .marquee-row img { height: 28px; max-width: 110px; }

  .metrics { grid-template-columns: 1fr; }
  .metric { padding: 28px 24px; }

  .problem-list li { font-size: 20px; padding: 12px 0; }
  .tele-row { grid-template-columns: 48px 1fr 32px; font-size: 11px; gap: 10px; }

  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .meta-divider { display: none; }

  .btn, .btn-lg { padding: 14px 22px; font-size: 14px; }
  .btn-lg { padding: 16px 28px; font-size: 15px; }
}

/* =========================================================
   ACCESSIBILITY
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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