:root {
  --bg: #0d0d0f;
  --surface: #161619;
  --surface-2: #1e1e22;
  --border: #2a2a30;
  --accent: #00B4FF;
  --accent-dim: rgba(0,180,255,0.12);
  --text: #f0f0f2;
  --text-muted: #8a8a96;
  --text-dim: #55555f;
  --success: #00E87A;
  --warning: #FFB800;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13,13,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.3px;
  color: var(--text);
}
.nav-tagline {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* HERO */
.hero {
  padding: 140px 40px 100px;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-eyebrow {
  margin-bottom: 24px;
}
.pill {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid rgba(0,180,255,0.2);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 3px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 84px);
  line-height: 1.05;
  font-weight: 400;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 28px;
  max-width: 700px;
}
.hero-headline em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 19px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.6;
  margin-bottom: 64px;
  font-weight: 300;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  max-width: 640px;
}
.stat {
  background: var(--surface);
  padding: 24px 28px;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--accent);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* DEMO */
.demo {
  padding: 80px 40px;
  max-width: 1100px;
  margin: 0 auto;
}
.demo-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.demo-icon {
  display: flex;
  align-items: center;
  color: var(--accent);
}
.phone-frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  max-width: 420px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
}
.phone-header {
  background: var(--surface-2);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}
.phone-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #0066cc);
  flex-shrink: 0;
}
.phone-contact {
  display: flex;
  flex-direction: column;
}
.phone-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.phone-status {
  font-size: 11px;
  color: var(--accent);
}
.phone-messages {
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.msg {
  font-size: 14px;
  line-height: 1.5;
  padding: 8px 12px;
  border-radius: 8px;
  max-width: 85%;
}
.msg.system {
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 11px;
  align-self: center;
  text-align: center;
  border-radius: 20px;
}
.msg.timestamp {
  font-size: 10px;
  color: var(--text-dim);
  align-self: center;
}
.msg.inbound {
  background: var(--surface-2);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}
.msg.outbound {
  background: rgba(0,180,255,0.1);
  color: var(--text);
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}
.msg.outbound.perfect {
  background: rgba(0,232,122,0.1);
  border: 1px solid rgba(0,232,122,0.15);
  color: var(--success);
}
.msg.notification {
  background: rgba(0,180,255,0.05);
  border: 1px solid rgba(0,180,255,0.15);
  color: var(--accent);
  font-size: 12px;
  align-self: flex-start;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}
.notif-icon {
  display: flex;
  align-items: center;
  color: var(--success);
}
.demo-caption {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 420px;
}

/* FEATURES */
.features {
  padding: 80px 40px;
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  margin-bottom: 64px;
}
.features-header h2 {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 400;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.features-header p {
  font-size: 16px;
  color: var(--text-muted);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.feature {
  background: var(--surface);
  padding: 32px 24px;
}
.feature-step {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 16px;
}
.feature h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.feature p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* PRICING */
.pricing {
  padding: 80px 40px;
  max-width: 1100px;
  margin: 0 auto;
}
.pricing-header {
  text-align: center;
  margin-bottom: 64px;
}
.pricing-header h2 {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 400;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.pricing-header p {
  font-size: 16px;
  color: var(--text-muted);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px;
}
.pricing-card.featured {
  background: var(--surface-2);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), inset 0 0 40px rgba(0,180,255,0.04);
}
.card-tier {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.pricing-card.featured .card-tier {
  color: var(--accent);
}
.card-price {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 28px;
}
.card-price span {
  font-size: 16px;
  color: var(--text-muted);
  font-family: var(--font-body);
}
.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card-features li {
  font-size: 14px;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}
.card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

/* CLOSING */
.closing {
  padding: 100px 40px;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.closing-inner {
  max-width: 620px;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 400;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  line-height: 1.2;
}
.closing p {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 40px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 18px;
}
.footer-copy {
  font-size: 13px;
  color: var(--text-dim);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { padding: 120px 24px 80px; }
  .hero-stats { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .demo { padding: 60px 24px; }
  .features { padding: 60px 24px; }
  .pricing { padding: 60px 24px; }
  .closing { padding: 60px 24px; }
  .navbar { padding: 0 24px; }
}

@media (max-width: 600px) {
  .hero-headline { font-size: 40px; letter-spacing: -1px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}