:root {
  --bg: #0F0F10;
  --bg-surface: #18181B;
  --bg-elevated: #232326;
  --fg: #F4F0E8;
  --fg-muted: #8A8A8E;
  --accent: #FF6B2C;
  --accent-dim: rgba(255, 107, 44, 0.12);
  --hot: #FF4D00;
  --hot-bg: rgba(255, 77, 0, 0.12);
  --attention: #F59E0B;
  --attention-bg: rgba(245, 158, 11, 0.12);
  --done: #34D399;
  --done-bg: rgba(52, 211, 153, 0.12);
  --border: rgba(244, 240, 232, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* ── Hero ── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 48px 100px;
  max-width: 1280px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.6rem, 4vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
}

/* ── Inbox Mockup ── */
.inbox-mockup {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 32px 64px rgba(0,0,0,0.5);
}
.inbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.inbox-label { font-weight: 600; font-size: 0.9rem; }
.inbox-badge {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}
.inbox-stats {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
}
.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 12px;
  gap: 2px;
}
.stat-hot { border-right: 1px solid var(--border); }
.stat-attention { border-right: 1px solid var(--border); }
.stat-icon { font-size: 1rem; }
.stat-count {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1;
}
.stat-label { font-size: 0.7rem; color: var(--fg-muted); }
.conversation-list { padding: 8px 0; }
.conversation {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
}
.conversation:last-child { border-bottom: none; }
.conv-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.conv-body { flex: 1; min-width: 0; }
.conv-name { font-weight: 600; font-size: 0.8rem; }
.conv-preview {
  font-size: 0.75rem;
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}
.conv-tag {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  flex-shrink: 0;
}
.conv-tag-hot { background: var(--hot-bg); color: var(--hot); }
.conv-tag-attention { background: var(--attention-bg); color: var(--attention); }
.conv-tag-done { background: var(--done-bg); color: var(--done); }
.inbox-reply {
  padding: 10px 20px 14px;
  border-top: 1px solid var(--border);
}
.reply-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--done-bg);
  color: var(--done);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

/* ── Problem ── */
.problem {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 48px;
}
.problem-inner { max-width: 900px; margin: 0 auto; }
.problem-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 40px;
}
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}
.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.problem-card-icon { font-size: 1.5rem; }
.problem-card-text { font-size: 0.95rem; color: var(--fg-muted); line-height: 1.5; }
.problem-divider {
  text-align: center;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  padding: 20px 0;
}

/* ── Inbox Section ── */
.inbox-section { padding: 80px 48px; }
.inbox-section-inner { max-width: 1280px; margin: 0 auto; }
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.section-body { color: var(--fg-muted); max-width: 520px; line-height: 1.7; margin-bottom: 48px; }
.inbox-segment-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.inbox-segment {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
}
.seg-hot { border-top: 3px solid var(--hot); }
.seg-attention { border-top: 3px solid var(--attention); }
.seg-handled { border-top: 3px solid var(--done); }
.seg-icon { font-size: 1.4rem; margin-bottom: 12px; }
.seg-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1rem; margin-bottom: 8px; }
.seg-desc { font-size: 0.85rem; color: var(--fg-muted); line-height: 1.6; }

/* ── Features ── */
.features { padding: 80px 48px; background: var(--bg-surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.features-inner { max-width: 1280px; margin: 0 auto; }
.features-headline { max-width: 600px; margin-bottom: 56px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.feature-icon { font-size: 2rem; margin-bottom: 16px; }
.feature-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.05rem; margin-bottom: 10px; }
.feature-desc { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.65; }

/* ── Process ── */
.process { padding: 80px 48px; }
.process-inner { max-width: 1280px; margin: 0 auto; }
.process-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 80px; margin-top: 48px; }
.step { display: flex; gap: 20px; }
.step-number {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
}
.step-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1rem; margin-bottom: 8px; }
.step-desc { font-size: 0.875rem; color: var(--fg-muted); line-height: 1.65; }

/* ── Pricing ── */
.pricing { padding: 80px 48px; background: var(--bg-surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pricing-inner { max-width: 1280px; margin: 0 auto; text-align: center; }
.pricing-sub { color: var(--fg-muted); margin-bottom: 48px; }
.pricing-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; text-align: left; margin-bottom: 32px; }
.pricing-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}
.pricing-card-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-dim); }
.pricing-card-label {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.pricing-badge {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pricing-price {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}
.pricing-period { font-size: 1rem; font-weight: 400; color: var(--fg-muted); }
.pricing-detail { font-size: 0.8rem; color: var(--fg-muted); margin-bottom: 20px; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.pricing-features li { font-size: 0.85rem; color: var(--fg-muted); }
.pricing-footer { font-size: 0.8rem; color: var(--fg-muted); }

/* ── Testimonials ── */
.testimonials { padding: 80px 48px; }
.testimonials-inner { max-width: 1280px; margin: 0 auto; }
.testimonial-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; margin-top: 48px; }
.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}
.testimonial-text { font-size: 0.95rem; line-height: 1.65; color: var(--fg); margin-bottom: 20px; font-style: italic; }
.testimonial-attr { display: flex; align-items: center; gap: 10px; }
.testimonial-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}
.testimonial-name { font-weight: 600; font-size: 0.85rem; }
.testimonial-role { font-size: 0.75rem; color: var(--fg-muted); }

/* ── Closing ── */
.closing { padding: 100px 48px; text-align: center; }
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-headline { font-family: 'Syne', sans-serif; font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.03em; margin-bottom: 20px; }
.closing-sub { color: var(--fg-muted); line-height: 1.7; font-size: 1rem; }

/* ── Footer ── */
.footer { border-top: 1px solid var(--border); padding: 40px 48px; }
.footer-inner { max-width: 1280px; margin: 0 auto; }
.footer-brand { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1rem; margin-bottom: 6px; }
.footer-tagline { font-size: 0.8rem; color: var(--fg-muted); margin-bottom: 16px; }
.footer-note { font-size: 0.75rem; color: var(--fg-muted); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding: 48px 24px 64px; }
  .hero-visual { order: -1; }
  .problem-grid { grid-template-columns: 1fr; }
  .inbox-segment-row { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .nav { padding: 16px 24px; }
  .features, .process, .pricing, .testimonials, .closing, .problem, .inbox-section { padding: 60px 24px; }
}
@media (max-width: 600px) {
  .inbox-stats { flex-direction: column; }
  .stat-hot, .stat-attention { border-right: none; border-bottom: 1px solid var(--border); }
  .conv-preview { max-width: 120px; }
}