:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-tertiary: #1a1a1e;
  --bg-card: #16161a;
  --text-primary: #f0f0f2;
  --text-secondary: #a0a0a8;
  --text-muted: #6a6a74;
  --accent: #e87b35;
  --accent-glow: rgba(232, 123, 53, 0.15);
  --accent-light: #f5a623;
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(232, 123, 53, 0.25);
  --radius: 12px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'DM Sans', -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 48px 80px;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(232, 123, 53, 0.08), transparent),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(232, 123, 53, 0.04), transparent),
    var(--bg-primary);
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(42px, 5.5vw, 72px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.phone-ring {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  opacity: 0;
  animation: ring-pulse 3s ease-out infinite;
}

.ring-1 {
  width: 100%;
  height: 100%;
  animation-delay: 0s;
}

.ring-2 {
  width: 130%;
  height: 130%;
  animation-delay: 0.5s;
}

.ring-3 {
  width: 160%;
  height: 160%;
  animation-delay: 1s;
}

@keyframes ring-pulse {
  0% { transform: scale(0.7); opacity: 0.6; }
  100% { transform: scale(1); opacity: 0; }
}

.phone-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  z-index: 1;
  box-shadow: 0 0 60px rgba(232, 123, 53, 0.3);
}

.stat-cards {
  display: flex;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  text-align: center;
  min-width: 110px;
}

.stat-number {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============ PROBLEM ============ */
.problem {
  padding: 120px 48px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-container {
  max-width: 1200px;
  margin: 0 auto;
}

.problem-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 20px;
}

.problem h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  margin-bottom: 60px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.problem-stat {
  padding: 32px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.big-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 56px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.problem-stat p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

/* ============ CAPABILITIES ============ */
.capabilities {
  padding: 120px 48px;
  background: var(--bg-primary);
}

.cap-container {
  max-width: 1200px;
  margin: 0 auto;
}

.cap-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 20px;
}

.capabilities h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  margin-bottom: 60px;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.cap-item {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.cap-item:hover {
  border-color: var(--border-accent);
  box-shadow: 0 4px 40px var(--accent-glow);
}

.cap-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.cap-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.cap-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============ COMPARISON ============ */
.comparison {
  padding: 120px 48px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.comp-container {
  max-width: 900px;
  margin: 0 auto;
}

.comparison h2 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
}

.comp-table {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.comp-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
}

.comp-header {
  background: var(--bg-tertiary);
}

.comp-header .comp-cell {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.comp-header .comp-new {
  color: var(--accent);
}

.comp-cell {
  padding: 16px 24px;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}

.comp-feature {
  font-weight: 500;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}

.comp-old {
  color: var(--text-muted);
  background: var(--bg-card);
}

.comp-new {
  color: var(--text-primary);
  background: rgba(232, 123, 53, 0.05);
}

.comp-row:last-child .comp-cell {
  border-bottom: none;
}

.comp-row:last-child .comp-new {
  color: var(--accent);
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
}

/* ============ CLOSING ============ */
.closing {
  padding: 140px 48px;
  background:
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(232, 123, 53, 0.06), transparent),
    var(--bg-primary);
  text-align: center;
}

.closing-container {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.closing-detail {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ============ FOOTER ============ */
.site-footer {
  padding: 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-copy {
  font-size: 14px;
  color: var(--text-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .hero {
    padding: 80px 24px 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto;
  }

  .problem,
  .capabilities,
  .comparison,
  .closing {
    padding: 80px 24px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cap-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .comp-row {
    grid-template-columns: 1fr;
  }

  .comp-header {
    display: none;
  }

  .comp-cell {
    padding: 12px 20px;
  }

  .comp-feature {
    font-weight: 600;
    background: var(--bg-tertiary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
  }

  .comp-old::before {
    content: 'Receptionist: ';
    color: var(--text-muted);
    font-size: 12px;
  }

  .comp-new::before {
    content: 'RunDesk: ';
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
  }

  .stat-cards {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 36px;
  }

  .big-number {
    font-size: 42px;
  }

  .problem h2,
  .capabilities h2,
  .comparison h2,
  .closing h2 {
    font-size: 28px;
  }

  .stat-card {
    min-width: 90px;
    padding: 12px 14px;
  }
}