/* ===== RESET & ROOT ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #F8F7F4;
  --surface: #FFFFFF;
  --fg: #111827;
  --fg-muted: #6B7280;
  --fg-subtle: #9CA3AF;
  --accent: #1A6B5A;
  --accent-light: #E8F5F1;
  --warm: #F4A83A;
  --warm-light: #FFF4E6;
  --radius: 14px;
  --radius-sm: 8px;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== NAV ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 247, 244, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 14px;
  border-radius: 999px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* ===== HERO ===== */
.hero {
  padding: 80px 32px 96px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(42px, 5vw, 62px);
  font-weight: 800;
  line-height: 1.08;
  color: var(--fg);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-lede {
  font-size: 19px;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 480px;
  margin-bottom: 36px;
}

.action-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-subtle);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ===== PHONE MOCKUP ===== */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  background: var(--surface);
  border: 1.5px solid rgba(0,0,0,0.08);
  border-radius: 38px;
  padding: 18px;
  width: 290px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.04);
}

.phone-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px 12px;
  font-size: 12px;
  color: var(--fg-muted);
  font-weight: 600;
}

.call-screen {
  background: var(--bg);
  border-radius: 26px;
  padding: 20px 16px;
  min-height: 380px;
}

.call-incoming {
  text-align: center;
  padding: 16px 12px;
  background: var(--accent);
  color: #fff;
  border-radius: 14px;
  margin-bottom: 16px;
}

.call-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  font-weight: 700;
  opacity: 0.7;
  margin-bottom: 6px;
}

.call-number {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.call-id {
  font-size: 12px;
  opacity: 0.75;
}

.ai-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding: 10px 12px;
  background: var(--surface);
  border-radius: 10px;
  border: 1.5px solid rgba(26,107,90,0.2);
}

.ai-name {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.ai-role {
  font-size: 11px;
  color: var(--fg-muted);
  display: block;
}

.ai-wave {
  display: flex;
  gap: 3px;
  align-items: center;
  margin-left: auto;
}

.ai-wave span {
  display: block;
  width: 3px;
  height: 14px;
  background: var(--accent);
  border-radius: 2px;
  animation: wave 1.2s ease-in-out infinite;
}
.ai-wave span:nth-child(2) { animation-delay: 0.15s; }
.ai-wave span:nth-child(3) { animation-delay: 0.3s; }
.ai-wave span:nth-child(4) { animation-delay: 0.45s; }

@keyframes wave {
  0%, 100% { height: 5px; opacity: 0.4; }
  50% { height: 14px; opacity: 1; }
}

.call-transcript {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.transcript-line {
  font-size: 12px;
  line-height: 1.5;
  padding: 8px 10px;
  border-radius: 10px;
  max-width: 88%;
}

.transcript-line.user {
  background: #F3F4F6;
  color: var(--fg);
  align-self: flex-end;
}

.transcript-line.ai {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 500;
  align-self: flex-start;
}

.call-booked {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 8px 12px;
  border-radius: 8px;
  text-align: center;
  justify-content: center;
}

/* ===== PROOF STRIP ===== */
.proof-strip {
  background: var(--fg);
  color: #fff;
  padding: 56px 32px;
}

.proof-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.proof-stat {
  flex: 1;
  text-align: center;
  padding: 0 40px;
}

.proof-number {
  font-family: 'Syne', sans-serif;
  font-size: 52px;
  font-weight: 800;
  color: var(--warm);
  line-height: 1;
  margin-bottom: 10px;
}

.proof-label {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}

.proof-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.15);
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 32px;
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 56px;
}

.section-header.centered {
  text-align: center;
}

.section-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.15;
  letter-spacing: -0.015em;
  max-width: 580px;
}

.section-header.centered .section-title {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.feature-icon {
  margin-bottom: 18px;
}

.feature-title {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  background: var(--surface);
  padding: 100px 32px;
  border-top: 1px solid rgba(0,0,0,0.06);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.how-inner {
  max-width: 900px;
  margin: 0 auto;
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin-top: 56px;
}

.step {
  flex: 1;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(0,0,0,0.06);
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 800;
  color: var(--fg-subtle);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.step h3 {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
}

.step p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.step-arrow {
  padding-top: 80px;
  flex-shrink: 0;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 32px 120px;
  text-align: center;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing-badge {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
  background: var(--surface);
  border: 1.5px solid rgba(0,0,0,0.08);
  padding: 20px 28px;
  border-radius: 999px;
}

.badge-ring {
  flex-shrink: 0;
}

.closing-voice {
  text-align: left;
}

.voice-name {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
  display: block;
}

.voice-desc {
  font-size: 14px;
  color: var(--fg-muted);
}

.closing-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--fg);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 18px;
  color: var(--fg-muted);
  margin-bottom: 48px;
}

.closing-pricing {
  padding: 36px;
  background: var(--surface);
  border: 1.5px solid rgba(0,0,0,0.08);
  border-radius: var(--radius);
  display: inline-block;
}

.price-tag {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 16px;
}

.price-dollar {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--fg-muted);
}

.price-num {
  font-family: 'Syne', sans-serif;
  font-size: 72px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
}

.price-period {
  font-family: 'Syne', sans-serif;
  font-size: 24px;
  font-weight: 500;
  color: var(--fg-muted);
}

.price-note {
  font-size: 14px;
  color: var(--fg-muted);
  max-width: 340px;
  margin: 0 auto;
  line-height: 1.55;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--fg);
  color: #fff;
  padding: 48px 32px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-visual {
    order: -1;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .proof-inner {
    flex-direction: column;
    gap: 40px;
  }
  .proof-divider {
    width: 60px;
    height: 1px;
  }
  .steps {
    flex-direction: column;
  }
  .step-arrow {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 56px 20px 72px;
  }
  .features {
    padding: 72px 20px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .how-it-works {
    padding: 72px 20px;
  }
  .closing {
    padding: 72px 20px 96px;
  }
  .proof-strip {
    padding: 48px 20px;
  }
  .nav-inner {
    padding: 14px 20px;
  }
}