/* ── Variables ── */
:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --surface-2: #1a1a24;
  --border: #222230;
  --fg: #e8e8f0;
  --fg-dim: #7a7a90;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, 0.12);
  --accent-glow: rgba(0, 229, 160, 0.25);
  --threat: #ff4d6a;
  --threat-dim: rgba(255, 77, 106, 0.12);
  --opp: #00b8ff;
  --opp-dim: rgba(0, 184, 255, 0.12);
  --info: #a78bfa;
  --info-dim: rgba(167, 139, 250, 0.12);
  --mono: 'Space Mono', 'Courier New', monospace;
  --sans: 'Syne', system-ui, sans-serif;
  --nav-h: 60px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.nav-logo {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 4rem) 2rem 6rem;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2.5rem;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.8rem;
}
.badge {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0, 229, 160, 0.25);
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.7rem;
}
.badge-sep { color: var(--fg-dim); }
.badge-text { color: var(--fg-dim); }

.hero-headline {
  font-family: var(--sans);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 900px;
}
.hero-accent {
  color: var(--accent);
  display: inline-block;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--fg-dim);
  max-width: 580px;
  line-height: 1.7;
}

/* Terminal */
.hero-terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 680px;
  box-shadow: 0 0 0 1px rgba(0,229,160,0.06), 0 30px 80px rgba(0,0,0,0.5);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--fg-dim);
  margin-left: 0.5rem;
}
.terminal-body {
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.terminal-line {
  font-family: var(--mono);
  font-size: 0.78rem;
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
}
.t-time { color: var(--fg-dim); min-width: 45px; }
.t-dim { color: #5a5a72; }
.t-accent { color: var(--fg); }
.t-highlight { color: var(--accent); }
.t-value { color: var(--fg); }
.terminal-summary {
  margin-top: 0.4rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
  color: var(--fg-dim);
}
.terminal-summary .t-value { color: var(--accent); }

/* ── Section shared ── */
.section-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.section-headline {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 3.5rem;
}

/* ── How It Works ── */
.how-it-works {
  padding: 7rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.step {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
}
.step:hover { border-color: rgba(0,229,160,0.25); }
.step-number {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.step p {
  font-size: 0.92rem;
  color: var(--fg-dim);
  line-height: 1.65;
}

/* ── Digest Preview ── */
.digest-preview {
  padding: 7rem 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.digest-inner {
  max-width: 900px;
  margin: 0 auto;
}
.digest-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2.5rem;
}
.digest-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.3rem;
}
.digest-date {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--fg-dim);
}
.digest-signal-count {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
}
.count-num {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.count-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--fg-dim);
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.digest-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.digest-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.digest-item--threat { border-color: rgba(255,77,106,0.2); background: var(--threat-dim); }
.digest-item--opp { border-color: rgba(0,184,255,0.2); background: var(--opp-dim); }
.digest-item--info { border-color: rgba(167,139,250,0.2); background: var(--info-dim); }
.item-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.5rem 1rem;
}
.digest-item--threat .item-tag { color: var(--threat); }
.digest-item--opp .item-tag { color: var(--opp); }
.digest-item--info .item-tag { color: var(--info); }
.item-body { padding: 1rem 1.2rem 1.2rem; }
.item-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--fg);
}
.item-why {
  font-size: 0.88rem;
  color: var(--fg-dim);
  line-height: 1.65;
}

/* ── Signal Types ── */
.signal-types {
  padding: 7rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.signal-card {
  background: var(--surface);
  padding: 2rem;
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  transition: background 0.2s;
}
.signal-card:hover { background: var(--surface-2); }
.signal-icon {
  font-size: 1.2rem;
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.signal-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.signal-content p {
  font-size: 0.85rem;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* ── Closing ── */
.closing {
  padding: 8rem 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.closing-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.closing-statement {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.closing-accent { color: var(--accent); }
.closing-body {
  font-size: 1.05rem;
  color: var(--fg-dim);
  margin-bottom: 3rem;
  line-height: 1.7;
}
.closing-philosophy {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
}
.phi-label { color: var(--fg-dim); margin-right: 0.5rem; }
.phi-item { color: var(--fg); }
.phi-item:not(:last-child)::after { content: ' '; }

/* ── Footer ── */
.footer {
  padding: 3rem 2rem 2rem;
  border-top: 1px solid var(--border);
}
.footer-top { text-align: center; margin-bottom: 1.5rem; }
.footer-logo {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-dim);
}
.footer-tagline a {
  color: var(--fg-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}
.footer-tagline a:hover { color: var(--fg); }
.footer-bottom {
  text-align: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .steps-grid,
  .signal-grid { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--nav-h) + 2rem); padding-bottom: 4rem; }
  .hero-headline { font-size: 2.5rem; }
  .how-it-works, .signal-types { padding: 4rem 1.5rem; }
  .digest-preview { padding: 4rem 1.5rem; }
  .closing { padding: 5rem 1.5rem; }
  .closing-statement { font-size: 1.6rem; }
  .digest-header { flex-direction: column; gap: 1rem; }
  .digest-signal-count { align-items: flex-start; flex-direction: row; align-items: center; gap: 0.5rem; }
  .count-num { font-size: 1.8rem; }
  .nav { padding: 0 1rem; }
}