:root {
  --bg: #111111;
  --surface: #1a1a1a;
  --border: #2a2a2a;
  --fg: #f5f5f0;
  --fg-muted: #888888;
  --lime: #d4ff3a;
  --lime-dim: #b8e030;
  --red: #ff6b6b;
  --yellow: #ffd93d;
  --green: #6bcb77;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── NAVBAR ── */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 60px;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-mark { color: var(--lime); }
.brand-name { color: var(--fg); }

.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 0.01em;
}

/* ── HERO ── */
.hero {
  padding: 80px 60px 60px;
}

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

.hero-label {
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 20px;
}

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--fg);
}

.lime { color: var(--lime); }

.hero-sub {
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 32px;
}

.metric-val {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--lime);
  display: block;
}

.metric-label {
  font-size: 12px;
  color: var(--fg-muted);
  display: block;
  margin-top: 2px;
}

.metric-div {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── INBOX MOCKUP ── */
.inbox-mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(212,255,58,0.08);
}

.mock-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #222;
  border-bottom: 1px solid var(--border);
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.mock-dot.red { background: #ff5f57; }
.mock-dot.yellow { background: #febc2e; }
.mock-dot.green { background: #28c840; }
.mock-title {
  font-size: 11px;
  color: var(--fg-muted);
  margin-left: 8px;
  font-family: 'DM Sans', sans-serif;
}

.mock-inbox { padding: 0; }

.mock-thread {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.mock-thread.replied { background: rgba(212,255,58,0.04); }

.thread-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--lime);
  color: #111;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.thread-lines { display: flex; flex-direction: column; gap: 3px; }
.line { font-size: 13px; color: var(--fg); font-weight: 400; }
.line.strong { font-weight: 600; }
.line.muted { font-size: 11px; color: var(--fg-muted); }

.reply-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: var(--lime);
  color: #111;
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.mock-status-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 18px;
  background: #1a1a1a;
  border-top: 1px solid var(--border);
}

.status-chip {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: 4px;
}
.status-chip.active { background: rgba(107,203,119,0.15); color: var(--green); }

.status-stat {
  font-size: 11px;
  color: var(--fg-muted);
}

/* ── FEATURES ── */
.features { padding: 80px 60px; }
.features-inner { max-width: 1200px; margin: 0 auto; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  max-width: 600px;
  margin-bottom: 60px;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.feature-card { display: flex; flex-direction: column; gap: 12px; }

.feature-icon {
  font-size: 24px;
  color: var(--lime);
  font-weight: 300;
  line-height: 1;
}

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

.feature-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-muted);
}

/* ── THE PROBLEM ── */
.theproblem {
  padding: 80px 60px;
  border-top: 1px solid var(--border);
}

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

.problem-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}

.problem-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(24px, 2.5vw, 36px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.problem-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.problem-quote {
  margin-top: 32px;
  padding-left: 20px;
  border-left: 2px solid var(--lime);
}

.quote-mark {
  font-size: 48px;
  line-height: 0.5;
  color: var(--lime);
  opacity: 0.4;
  display: block;
  margin-bottom: 8px;
}

.problem-quote p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  font-style: italic;
}

.quote-source {
  font-size: 12px;
  color: var(--fg-muted);
  display: block;
  margin-top: 8px;
}

.comparison-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 32px;
}

.comp-col { padding: 24px; }
.comp-col.old { background: #161616; border-right: 1px solid var(--border); }
.comp-col.new { background: rgba(212,255,58,0.04); }

.comp-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.comp-col.old .comp-label { color: var(--fg-muted); }
.comp-col.new .comp-label { color: var(--lime); }

.comp-item {
  font-size: 13px;
  color: var(--fg-muted);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.comp-col.new .comp-item.on { color: var(--fg); }
.comp-col.new .comp-item.on::before {
  content: '✓ ';
  color: var(--lime);
}

/* ── MANIFESTO ── */
.manifesto {
  padding: 100px 60px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, #0f0f0f 100%);
}

.manifesto-inner { max-width: 800px; margin: 0 auto; }

.manifesto-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 20px;
}

.manifesto-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 32px;
}

.manifesto-body {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

/* ── CLOSING ── */
.closing {
  padding: 100px 60px;
  border-top: 1px solid var(--border);
}

.closing-inner { max-width: 900px; margin: 0 auto; text-align: center; }

.closing-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.closing-sub {
  font-size: 18px;
  color: var(--lime);
  font-weight: 500;
  margin-bottom: 60px;
}

.closing-stripe {
  width: 60px;
  height: 3px;
  background: var(--lime);
  margin: 0 auto 60px;
  border-radius: 2px;
}

.closing-tagline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--fg);
}

/* ── FOOTER ── */
.footer {
  padding: 32px 60px;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
}

.footer-meta {
  font-size: 13px;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-sep { color: var(--lime); }

.footer-copy {
  font-size: 12px;
  color: var(--fg-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .navbar { padding: 16px 24px; }
  .nav-tagline { display: none; }

  .hero { padding: 48px 24px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }

  .features { padding: 48px 24px; }
  .feature-grid { grid-template-columns: 1fr; gap: 32px; }

  .theproblem { padding: 48px 24px; }
  .theproblem-inner { grid-template-columns: 1fr; gap: 48px; }

  .manifesto { padding: 64px 24px; }
  .manifesto-body { font-size: 16px; }

  .closing { padding: 64px 24px; }

  .footer { padding: 24px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .footer-meta { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-metrics { flex-direction: column; align-items: flex-start; gap: 16px; }
  .metric-div { display: none; }
}