:root {
  --bg: #080b14;
  --surface: #0d1321;
  --surface-2: #131a2e;
  --border: #1e2844;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --mint: #00f5a0;
  --text: #c8d0e7;
  --text-muted: #5a6a8a;
  --text-bright: #edf0ff;
  --score-high: #ff4455;
  --score-med: #ffaa00;
  --score-low: #3a5a8a;
  --tag-bg: rgba(0, 212, 255, 0.08);
  --tag-text: #00d4ff;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: 'Syne', sans-serif;
  color: var(--text-bright);
  line-height: 1.15;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 11, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--text-bright);
  letter-spacing: -0.3px;
}

.nav-status {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px var(--mint);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* HERO */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 32px 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-label {
  margin-bottom: 24px;
}

.label-badge {
  font-size: 11px;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 5px 12px;
  border-radius: 4px;
}

.hero-headline {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-lede {
  font-size: 17px;
  color: var(--text);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 36px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.meta-sep {
  color: var(--border);
}

/* MOCKUP */
.hero-mockup {
  perspective: 1000px;
}

.mockup-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 255, 0.06);
  transform: rotateY(-4deg) rotateX(3deg);
  transition: transform 0.4s ease;
}

.hero-mockup:hover .mockup-window {
  transform: rotateY(0deg) rotateX(0deg);
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.mockup-title {
  margin-left: 8px;
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'DM Sans', sans-serif;
}

.mockup-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feed-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  transition: border-color 0.2s;
}

.feed-item:hover {
  border-color: var(--accent);
}

.feed-item-hot { border-left: 3px solid var(--score-high); }
.feed-item-warm { border-left: 3px solid var(--score-med); }
.feed-item-cool { border-left: 3px solid var(--score-low); }

.feed-score {
  font-size: 9px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 6px;
  border-radius: 3px;
  min-width: 38px;
  text-align: center;
  height: fit-content;
}
.feed-item-hot .feed-score { background: rgba(255, 68, 85, 0.15); color: var(--score-high); }
.feed-item-warm .feed-score { background: rgba(255, 170, 0, 0.15); color: var(--score-med); }
.feed-item-cool .feed-score { background: rgba(58, 90, 138, 0.2); color: var(--score-low); }

.feed-body { flex: 1; }
.feed-sub { font-size: 10px; color: var(--text-muted); margin-bottom: 4px; font-family: 'DM Sans', sans-serif; }
.feed-title { font-size: 12.5px; color: var(--text); line-height: 1.4; margin-bottom: 8px; }

.feed-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.tag {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--tag-bg);
  color: var(--tag-text);
}

/* HOW IT WORKS */
.how-it-works {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 32px;
}

.section-header {
  max-width: 1200px;
  margin: 0 auto 56px;
}

.section-label {
  font-size: 11px;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.5px;
  max-width: 600px;
}

.steps-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  background: rgba(255,255,255,0.01);
  position: relative;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0.6;
}

.step-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* SIGNAL SECTION */
.signal-section {
  padding: 80px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.signal-header {
  text-align: center;
  margin-bottom: 56px;
}

.signal-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 500px;
  margin: 16px auto 0;
}

.signal-types {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.signal-type {
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.signal-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  margin-bottom: 16px;
}
.signal-icon-gap { background: linear-gradient(135deg, #ff4455, #ff6b7a); }
.signal-icon-pain { background: linear-gradient(135deg, #ffaa00, #ffc940); }
.signal-icon-trend { background: linear-gradient(135deg, #00d4ff, #00f5ff); }
.signal-icon-feature { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }

.signal-type h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.signal-type p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.signal-count {
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 12px;
  font-family: 'DM Sans', sans-serif;
}

/* MANIFESTO */
.manifesto {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 32px;
}

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

.manifesto-quote {
  font-family: 'Syne', sans-serif;
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 600;
  color: var(--text-bright);
  line-height: 1.4;
  margin-bottom: 32px;
  font-style: italic;
}

.manifesto-body {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* CLOSING */
.closing {
  padding: 100px 32px;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 32px;
}

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

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 16px;
  color: var(--text-bright);
  display: block;
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
}

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

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 48px 24px 60px; }
  .hero-mockup { display: none; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .signal-types { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
}

@media (max-width: 600px) {
  .signal-types { grid-template-columns: 1fr; }
  .hero-meta { flex-wrap: wrap; gap: 6px; }
  .meta-sep { display: none; }
}