:root {
  --bg: #08080B;
  --surface: #111115;
  --surface2: #1A1A20;
  --fg: #F5F5F0;
  --fg-muted: #8A8A95;
  --accent: #C8FF00;
  --lime: #C8FF00;
  --white: #FFFFFF;
  --border: rgba(255,255,255,0.07);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(8,8,11,0.9);
  backdrop-filter: blur(20px);
  z-index: 100;
}

.nav-brand {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.5px;
}

.nav-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  background: rgba(200,255,0,0.1);
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid rgba(200,255,0,0.2);
  letter-spacing: 0.5px;
}

/* ── HERO ── */
.hero {
  position: relative;
  padding: 80px 48px 100px;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg-glow {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(200,255,0,0.04) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-phone {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 280px;
  background: #1C1C22;
  border-radius: 40px;
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
  position: relative;
}

.phone-notch {
  width: 100px;
  height: 28px;
  background: #0A0A0C;
  border-radius: 0 0 20px 20px;
  margin: -16px -16px 12px -16px;
  position: relative;
}

.phone-screen {
  background: #0D0D12;
  border-radius: 24px;
  overflow: hidden;
  height: 400px;
  display: flex;
  flex-direction: column;
}

.wa-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: #1A1A22;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.wa-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C8FF00, #7FD400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: #0A0A0C;
}

.wa-info { flex: 1; }

.wa-name {
  font-weight: 600;
  font-size: 14px;
}

.wa-status {
  font-size: 11px;
  color: #4ADE80;
}

.wa-messages {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}

.wa-msg {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
  max-width: 75%;
}

.wa-customer {
  background: rgba(255,255,255,0.1);
  color: var(--fg);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.wa-agent {
  background: rgba(200,255,0,0.15);
  color: var(--lime);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.wa-time {
  font-size: 10px;
  color: rgba(255,255,255,0.25);
  align-self: flex-end;
  margin-bottom: 6px;
}

.wa-typing {
  font-size: 12px;
  color: var(--lime);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

.wa-typing::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-text { display: flex; flex-direction: column; gap: 28px; }

.hero-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--lime);
}

.hero-text h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
}

.hero-lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 460px;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 8px;
}

.proof-item { display: flex; flex-direction: column; gap: 2px; }

.proof-num {
  font-family: 'Syne', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--lime);
}

.proof-label {
  font-size: 12px;
  color: var(--fg-muted);
  max-width: 120px;
  line-height: 1.4;
}

.proof-divider {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.1);
}

/* ── CHANNELS ── */
.channels {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
}

.section-inner { max-width: 1200px; margin: 0 auto; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 16px;
}

.section-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
}

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

.channel-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  transition: border-color 0.3s, transform 0.3s;
}

.channel-card:hover {
  border-color: rgba(200,255,0,0.3);
  transform: translateY(-4px);
}

.channel-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.channel-name {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ── HOW ── */
.how {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
}

.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  margin-bottom: 60px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.step-content h3 {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.step-arrow {
  display: flex;
  justify-content: center;
  opacity: 0.5;
}

.how-dashboard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.dash-label {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 500;
}

.dash-channels {
  display: flex;
  gap: 16px;
  flex: 1;
}

.dash-channel {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--surface2);
}

.dash-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.wa .dash-dot { background: #25D366; }
.ig .dash-dot { background: #E1306C; }
.fb .dash-dot { background: #0866FF; }
.web .dash-dot { background: #FF5722; }

/* ── OUTCOMES ── */
.outcomes {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
}

.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.outcome-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
}

.outcome-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.outcome-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.outcome-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── DENTIST STORY ── */
.dentist-story {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
}

.story-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid rgba(200,255,0,0.15);
  border-radius: 28px;
  padding: 56px 60px;
  position: relative;
}

.story-badge {
  position: absolute;
  top: -14px;
  left: 40px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #0A0A0C;
  background: var(--lime);
  padding: 6px 16px;
  border-radius: 100px;
}

.story-body { display: flex; flex-direction: column; gap: 24px; }

.story-quote {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg);
}

.story-quote:last-child {
  color: var(--fg-muted);
  font-size: 16px;
}

.story-math {
  display: flex;
  gap: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.math-item { display: flex; flex-direction: column; gap: 4px; }

.math-val {
  font-family: 'Syne', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--lime);
}

.math-unit {
  font-size: 12px;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 4vw, 50px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 48px;
  line-height: 1.65;
}

.pricing-hint {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 16px;
  color: var(--fg-muted);
}

.price {
  font-family: 'Syne', sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--fg);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 800;
}

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

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--fg); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-phone { order: 2; }
  .hero-text { order: 1; }
  .channels-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 12px; }
  .step-arrow { transform: rotate(90deg); }
  .outcomes-grid { grid-template-columns: 1fr; }
  .story-math { flex-direction: column; gap: 20px; }
  .how-dashboard { flex-direction: column; align-items: flex-start; }
  .nav { padding: 20px 24px; }
  .hero, .channels, .how, .outcomes, .dentist-story, .closing { padding: 80px 24px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 600px) {
  .channels-grid { grid-template-columns: 1fr; }
  .phone-frame { width: 240px; }
  .phone-screen { height: 340px; }
  .hero-proof { flex-direction: column; align-items: flex-start; gap: 16px; }
  .proof-divider { display: none; }
}