/* ===================================================
   Notisfy — Enterprise Communication Suite
   Main Stylesheet
   =================================================== */

/* ---------- Design tokens ---------- */
:root {
  --navy-900: #060e2c;
  --navy-800: #0a1747;
  --navy-700: #142057;
  --navy-600: #1e3a8a;
  --blue-500: #3b82f6;
  --cyan-500: #06b6d4;
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;

  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-muted: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --text: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-inverse: #f8fafc;

  --gradient-hero: linear-gradient(135deg, #060e2c 0%, #0a1747 40%, #142057 100%);
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-soft: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
  --shadow-xl: 0 20px 50px -12px rgba(15, 23, 42, 0.18);
  --shadow-glow: 0 0 40px rgba(34, 211, 238, 0.25);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --container: 1200px;
  --container-wide: 1320px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Manrope', 'Inter', -apple-system, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-wide { width: 100%; max-width: var(--container-wide); margin: 0 auto; padding: 0 24px; }

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-tight { padding: 48px 0; }

.section-header { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-header.left { text-align: left; margin-left: 0; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-500);
  margin-bottom: 16px;
  padding: 6px 14px;
  background: rgba(6, 182, 212, 0.08);
  border-radius: var(--radius-pill);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.875rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.375rem, 2vw, 1.75rem); }
h4 { font-size: 1.25rem; }

.lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.text-muted { color: var(--text-muted); }
.text-cyan { color: var(--cyan-500); }
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  white-space: nowrap;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(34, 211, 238, 0.3);
}

.btn-secondary {
  background: white;
  color: var(--navy-800);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--cyan-500);
  color: var(--cyan-500);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--cyan-500); }

.btn-dark {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border-color: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
}
.btn-dark:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-lg { padding: 16px 32px; font-size: 16px; }

.btn .arrow { transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Navigation ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--navy-800);
  letter-spacing: -0.02em;
}

.nav-brand .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--gradient-accent);
  display: grid;
  place-items: center;
  color: white;
  box-shadow: var(--shadow-md);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-md);
  transition: all 0.15s;
}
.nav-link:hover { color: var(--navy-800); background: var(--bg-muted); }
.nav-link.active { color: var(--navy-800); }

.nav-cta { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--navy-800);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--gradient-hero);
  color: var(--text-inverse);
  padding: 120px 0 140px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(34, 211, 238, 0.2), transparent 60%),
    radial-gradient(700px 400px at 80% 90%, rgba(59, 130, 246, 0.18), transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black, transparent 70%);
  pointer-events: none;
}

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

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan-300);
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 12px var(--cyan-400);
}

.hero h1 {
  color: white;
  font-size: clamp(2.5rem, 5.2vw, 4rem);
  margin-bottom: 24px;
}
.hero h1 .grad { background: linear-gradient(90deg, #67e8f9, #3b82f6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.hero p {
  font-size: 1.2rem;
  line-height: 1.6;
  color: rgba(248, 250, 252, 0.75);
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-trust { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; font-size: 13px; color: rgba(248, 250, 252, 0.6); }
.hero-trust strong { color: white; font-weight: 600; }

/* Hero visual — chat preview */
.hero-visual {
  position: relative;
  perspective: 1200px;
}

.chat-stack {
  position: relative;
  transform: rotate3d(1, -0.4, 0.05, 8deg);
  transform-origin: center;
}

.chat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-xl);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: floatUp 0.8s ease-out backwards;
}
.chat-card:nth-child(1) { animation-delay: 0s; }
.chat-card:nth-child(2) { animation-delay: 0.15s; margin-left: 30px; }
.chat-card:nth-child(3) { animation-delay: 0.3s; margin-left: 60px; }
.chat-card:nth-child(4) { animation-delay: 0.45s; margin-left: 30px; }

.chat-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: white;
  font-size: 20px;
}
.chat-icon.sms     { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.chat-icon.email   { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.chat-icon.push    { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.chat-icon.whatsapp{ background: linear-gradient(135deg, #22c55e, #16a34a); }

.chat-content { flex: 1; min-width: 0; }
.chat-title { font-size: 13px; font-weight: 600; color: white; margin-bottom: 4px; display: flex; justify-content: space-between; }
.chat-title small { color: rgba(248, 250, 252, 0.5); font-weight: 400; }
.chat-body { font-size: 13px; color: rgba(248, 250, 252, 0.65); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@keyframes floatUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Logos / trust strip ---------- */
.trust-strip {
  padding: 48px 0;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.trust-strip-label {
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 28px;
}
.industries {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 40px;
}
.industry-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 15px;
}
.industry-tag svg { color: var(--cyan-500); }

/* ---------- Channels section ---------- */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.channel-card {
  position: relative;
  padding: 32px 28px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.25s;
  overflow: hidden;
}
.channel-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity 0.25s;
  z-index: 0;
}
.channel-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.channel-card:hover::before { opacity: 1; }
.channel-card:hover > * { color: white; position: relative; z-index: 1; }
.channel-card:hover .channel-icon { background: rgba(255, 255, 255, 0.18); color: white; }
.channel-card:hover .channel-link { color: white; }

.channel-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(59, 130, 246, 0.08));
  color: var(--cyan-500);
  margin-bottom: 20px;
  transition: all 0.25s;
}

.channel-card h3 { font-size: 1.25rem; margin-bottom: 10px; transition: color 0.25s; }
.channel-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; transition: color 0.25s; }

.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan-500);
  transition: color 0.25s;
}

/* ---------- Stats ---------- */
.stats-section {
  background: var(--gradient-hero);
  color: white;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 400px at 50% 50%, rgba(34, 211, 238, 0.15), transparent 70%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.stat {
  text-align: center;
  padding: 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.stat:last-child { border-right: none; }

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(90deg, #67e8f9, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: rgba(248, 250, 252, 0.7);
  font-weight: 500;
}

/* ---------- Features grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature {
  padding: 32px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.25s;
}
.feature:hover {
  border-color: var(--cyan-400);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  color: var(--cyan-500);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.feature h3 { font-size: 1.125rem; margin-bottom: 10px; }
.feature p { font-size: 15px; color: var(--text-muted); }

/* ---------- Split section (image + text) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split-reverse .split-content { order: 2; }

.split-content h2 { margin-bottom: 20px; }
.split-content > p { margin-bottom: 28px; }

.check-list { display: flex; flex-direction: column; gap: 14px; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text);
}
.check-list .check-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: grid;
  place-items: center;
  color: white;
  margin-top: 1px;
}

.split-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gradient-hero);
  padding: 40px;
  min-height: 420px;
  display: grid;
  place-items: center;
  color: white;
  box-shadow: var(--shadow-xl);
}

/* ---------- Use cases / industries ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.industry-card {
  padding: 36px 28px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.industry-card:hover {
  background: white;
  border-color: var(--cyan-400);
  box-shadow: var(--shadow-lg);
}
.industry-card .industry-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient-accent);
  color: white;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.industry-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.industry-card p { color: var(--text-muted); font-size: 15px; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--gradient-hero);
  color: white;
  border-radius: var(--radius-xl);
  padding: 64px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 300px at 50% 0%, rgba(34, 211, 238, 0.2), transparent 70%);
}
.cta-banner > * { position: relative; }
.cta-banner h2 { color: white; margin-bottom: 16px; }
.cta-banner p { color: rgba(248, 250, 252, 0.75); font-size: 1.1rem; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-banner .btn-secondary { background: white; border-color: white; color: var(--navy-800); }

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-900);
  color: rgba(248, 250, 252, 0.7);
  padding: 80px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand .nav-brand { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 15px; max-width: 320px; line-height: 1.6; }

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: white;
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 14px;
  color: rgba(248, 250, 252, 0.6);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--cyan-400); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(248, 250, 252, 0.5);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  background: var(--gradient-hero);
  color: white;
  padding: 80px 0 96px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 400px at 50% 0%, rgba(34, 211, 238, 0.18), transparent 70%);
}
.page-hero > * { position: relative; }
.page-hero h1 { color: white; margin-bottom: 16px; }
.page-hero p { color: rgba(248, 250, 252, 0.75); max-width: 640px; margin: 0 auto; font-size: 1.15rem; }

/* ---------- Channel deep-dive ---------- */
.channel-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.channel-detail:last-child { border-bottom: none; }
.channel-detail.reverse .channel-detail-content { order: 2; }

.channel-detail-content .channel-icon-lg {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: white;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.pill {
  padding: 8px 14px;
  background: var(--bg-muted);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.channel-visual {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  min-height: 380px;
  display: grid;
  place-items: center;
}
.channel-visual.dark {
  background: var(--gradient-hero);
  border-color: transparent;
  color: white;
  box-shadow: var(--shadow-xl);
}

/* ---------- Contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}
.contact-info h2 { margin-bottom: 20px; }
.contact-info p { color: var(--text-muted); margin-bottom: 32px; }

.contact-detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.contact-detail-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
  color: var(--cyan-500);
  display: grid;
  place-items: center;
}
.contact-detail strong { display: block; margin-bottom: 4px; color: var(--text); }
.contact-detail span { color: var(--text-muted); font-size: 15px; }

.contact-form {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cyan-500);
  background: white;
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.12);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-note {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 12px;
  text-align: center;
}

/* ---------- About page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.about-card {
  padding: 28px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.about-card .number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  line-height: 1;
}
.about-card h4 { font-size: 1rem; margin-bottom: 6px; }
.about-card p { font-size: 14px; color: var(--text-muted); }

/* ---------- Tabs (for channels overview style) ---------- */
.tabs {
  display: flex;
  gap: 8px;
  padding: 6px;
  background: var(--bg-muted);
  border-radius: var(--radius-pill);
  margin: 0 auto 48px;
  width: fit-content;
  border: 1px solid var(--border);
}
.tab {
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.tab.active {
  background: white;
  color: var(--navy-800);
  box-shadow: var(--shadow-sm);
}

/* ---------- Utility ---------- */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 480px; margin: 0 auto; }
  .channels-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .stat:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: white; border-bottom: 1px solid var(--border); flex-direction: column; padding: 16px; box-shadow: var(--shadow-lg); align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .nav-toggle { display: inline-flex; }
  .nav-cta .btn-ghost { display: none; }

  .hero { padding: 80px 0 100px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }

  .channels-grid,
  .feature-grid,
  .industry-grid { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat { border-right: none; padding: 12px; }
  .stat:nth-child(odd) { border-right: 1px solid rgba(255, 255, 255, 0.1); }

  .split, .channel-detail, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .split-reverse .split-content,
  .channel-detail.reverse .channel-detail-content { order: 0; }

  .cta-banner { padding: 48px 24px; }
  .contact-form { padding: 28px; }
  .form-row { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .about-grid { grid-template-columns: 1fr; }

  .tabs { flex-wrap: wrap; justify-content: center; }
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}