/* ═══════════════════════════════════
   SIGNALBEATS — CSS THEME
   ═══════════════════════════════════ */

:root {
  --black: #0d0d0d;
  --dark: #111111;
  --gray-dark: #1a1a1a;
  --gray-mid: #2a2a2a;
  --gray-light: #5a5a5a;
  --gray-text: #8a8a8a;
  --white: #e8e8e8;
  --neon: #39ff14;
  --neon-dim: #1f7a0a;
  --neon-glow: rgba(57, 255, 20, 0.15);
  --neon-glow-strong: rgba(57, 255, 20, 0.35);
}

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

html { font-size: 16px; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
  overflow-x: hidden;
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  background: var(--black);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--gray-mid);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(57,255,20,0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--neon);
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 600;
}

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(56px, 8vw, 96px);
  line-height: 0.9;
  color: var(--white);
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-text);
  font-weight: 300;
}

/* ─── RADAR ─── */
.radar-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.radar-grid {
  width: 320px;
  height: 320px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radar-sweep {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(57, 255, 20, 0.25) 30deg,
    transparent 60deg
  );
  animation: radar-spin 4s linear infinite;
}

@keyframes radar-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--neon);
  opacity: 0.2;
}
.radar-ring:nth-child(1) { width: 100px; height: 100px; }
.radar-ring:nth-child(2) { width: 180px; height: 180px; }
.radar-ring:nth-child(3) { width: 260px; height: 260px; }

.radar-crosshair {
  position: absolute;
  width: 320px;
  height: 320px;
}
.radar-crosshair::before {
  content: '';
  position: absolute;
  left: 50%; top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(57,255,20,0.3), transparent);
  transform: translateX(-50%);
}
.radar-crosshair::after {
  content: '';
  position: absolute;
  top: 50%; left: 0;
  height: 1px;
  width: 100%;
  background: linear-gradient(to right, transparent, rgba(57,255,20,0.3), transparent);
  transform: translateY(-50%);
}

.radar-blip {
  position: absolute;
  color: var(--neon);
  font-size: 12px;
  text-shadow: 0 0 8px var(--neon);
  animation: blip-pulse 2s ease-in-out infinite;
}
.blip-1 { top: 60px; left: 55%; animation-delay: 0s; }
.blip-2 { bottom: 80px; right: 60px; animation-delay: 0.7s; }
.blip-3 { top: 45%; right: 55px; animation-delay: 1.4s; }

@keyframes blip-pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}

.radar-center-dot {
  width: 8px;
  height: 8px;
  background: var(--neon);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--neon), 0 0 32px rgba(57,255,20,0.4);
  position: relative;
  z-index: 2;
}

.radar-label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gray-light);
  text-transform: uppercase;
}

.pulse-text {
  color: var(--neon);
  animation: blink 1.4s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ─── SCANNER STATS ─── */
.scanner {
  background: var(--dark);
  border-bottom: 1px solid var(--gray-mid);
  padding: 0;
}

.scanner-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.scanner-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.stat-number {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 56px;
  color: var(--neon);
  line-height: 1;
  letter-spacing: 0.05em;
}

.stat-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--gray-light);
  text-transform: uppercase;
  text-align: center;
  line-height: 1.4;
}

.scanner-divider {
  width: 1px;
  height: 60px;
  background: var(--gray-mid);
}

/* ─── FEATURES ─── */
.features {
  background: var(--black);
  padding: 120px 48px;
  border-bottom: 1px solid var(--gray-mid);
}

.features-header {
  max-width: 1200px;
  margin: 0 auto 80px;
}

.section-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--neon);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 600;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1;
  color: var(--white);
  letter-spacing: 0.02em;
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--dark);
  padding: 48px 40px;
  border: 1px solid var(--gray-mid);
  position: relative;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: var(--neon-dim);
}

.feature-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 80px;
  color: var(--gray-dark);
  line-height: 1;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.feature-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  color: var(--white);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.feature-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray-text);
  font-weight: 300;
}

.feature-tagline {
  max-width: 1200px;
  margin: 80px auto 0;
  padding-top: 48px;
  border-top: 1px solid var(--gray-mid);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.tagline-text {
  font-size: 16px;
  color: var(--gray-text);
  font-style: italic;
}

.tagline-em {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 36px;
  color: var(--neon);
  letter-spacing: 0.05em;
}

/* ─── MANIFESTO ─── */
.manifesto {
  background: var(--gray-dark);
  padding: 120px 48px;
  border-bottom: 1px solid var(--gray-mid);
}

.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.manifesto-label {
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--neon);
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 600;
}

.manifesto-label-right {
  margin-top: 40px;
}

.manifesto-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.manifesto-line {
  font-size: 15px;
  line-height: 1.9;
  color: var(--gray-text);
  font-weight: 300;
}

.manifesto-highlight {
  color: var(--white);
  font-size: 18px;
  font-weight: 400;
  padding-left: 20px;
  border-left: 2px solid var(--neon);
}

/* ─── CLOSING ─── */
.closing {
  background: var(--black);
  padding: 160px 48px;
  border-bottom: 1px solid var(--gray-mid);
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(57,255,20,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.closing-radar {
  width: 200px;
  height: 200px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.closing-radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--neon);
  opacity: 0.15;
}
.closing-radar-ring:nth-child(1) { width: 60px; height: 60px; }
.closing-radar-ring:nth-child(2) { width: 120px; height: 120px; animation: pulse-ring 2s ease-out infinite; }
.closing-radar-ring:nth-child(3) { width: 180px; height: 180px; animation: pulse-ring 2s ease-out infinite 0.4s; }

@keyframes pulse-ring {
  0% { opacity: 0.25; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.5); }
}

.closing-radar-blip {
  color: var(--neon);
  font-size: 14px;
  text-shadow: 0 0 12px var(--neon);
  animation: blip-pulse 1.8s ease-in-out infinite;
}

.closing-headline {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(40px, 6vw, 80px);
  line-height: 1;
  color: var(--white);
  letter-spacing: 0.03em;
  max-width: 700px;
}

.closing-footer {
  max-width: 500px;
}

.closing-sub {
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray-text);
  font-weight: 300;
}

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

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px;
  color: var(--white);
  letter-spacing: 0.1em;
}

.footer-sep {
  color: var(--neon);
  font-size: 14px;
}

.footer-tagline {
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 0.1em;
}

.footer-copy {
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 0.05em;
}

/* ─── MOBILE ─── */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    padding: 60px 24px;
    gap: 48px;
  }

  .hero-title {
    font-size: 56px;
  }

  .radar-grid, .radar-sweep {
    width: 240px;
    height: 240px;
  }

  .radar-ring:nth-child(1) { width: 80px; height: 80px; }
  .radar-ring:nth-child(2) { width: 140px; height: 140px; }
  .radar-ring:nth-child(3) { width: 200px; height: 200px; }

  .scanner-inner {
    flex-direction: column;
    padding: 40px 24px;
    gap: 32px;
  }

  .scanner-divider {
    width: 60px;
    height: 1px;
  }

  .features {
    padding: 80px 24px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .manifesto {
    padding: 80px 24px;
  }

  .closing {
    padding: 100px 24px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title { font-size: 42px; }
  .stat-number { font-size: 40px; }
  .section-title { font-size: 36px; }
  .manifesto-highlight { font-size: 16px; }
  .tagline-em { font-size: 28px; }
  .closing-headline { font-size: 40px; }
}