:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a26;
  --fg-primary: #e8e8f0;
  --fg-secondary: #8888a0;
  --fg-muted: #55556a;
  --accent: #00e5a0;
  --accent-dim: rgba(0, 229, 160, 0.12);
  --accent-glow: rgba(0, 229, 160, 0.25);
  --red: #ff4d6a;
  --amber: #ffb84d;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 80vw;
  height: 80vw;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.4;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: 100px;
  background: var(--accent-dim);
}

.hero-tag .pulse {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.6; box-shadow: 0 0 0 8px transparent; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--fg-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ===== SIGNALS GRID ===== */
.signals {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.signals-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.signals-header {
  margin-bottom: 4rem;
}

.signals-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.signals-header p {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 520px;
}

.signals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
}

.signal-card:hover {
  border-color: rgba(0, 229, 160, 0.2);
  transform: translateY(-2px);
}

.signal-icon {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-dim);
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
}

.signal-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.signal-card p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== BRIEFING ===== */
.briefing {
  padding: 6rem 2rem;
  position: relative;
}

.briefing-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.briefing-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}

.briefing-text p {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.briefing-mock {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  overflow: hidden;
}

.mock-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.mock-dot.green { background: var(--accent); }
.mock-dot.amber { background: var(--amber); }
.mock-dot.red { background: var(--red); }

.mock-body {
  padding: 1.5rem;
}

.mock-line {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 0.9rem;
}

.mock-line:last-child { border-bottom: none; }

.mock-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

.mock-label.price { background: rgba(255, 77, 106, 0.15); color: var(--red); }
.mock-label.feature { background: var(--accent-dim); color: var(--accent); }
.mock-label.hire { background: rgba(255, 184, 77, 0.15); color: var(--amber); }

.mock-content {
  color: var(--fg-secondary);
  line-height: 1.5;
}

/* ===== VERSUS ===== */
.versus {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

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

.versus h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.versus-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.versus-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.versus-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.95rem;
  color: var(--fg-secondary);
}

.versus-table tr td:last-child {
  color: var(--accent);
  font-weight: 500;
}

/* ===== CLOSING ===== */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0.2;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
  line-height: 1.1;
}

.closing p {
  color: var(--fg-secondary);
  font-size: 1.15rem;
  line-height: 1.7;
}

/* ===== FOOTER ===== */
footer {
  padding: 3rem 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
}

footer p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .signals-grid {
    grid-template-columns: 1fr;
  }
  .briefing-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .versus-table {
    font-size: 0.85rem;
  }
  .versus-table th,
  .versus-table td {
    padding: 0.8rem;
  }
  .hero {
    padding: 4rem 1.5rem 3rem;
  }
}