:root {
  --bg: #0a0c10;
  --bg-elevated: #12151c;
  --bg-card: #161a24;
  --fg: #e8eaed;
  --fg-muted: #8b919e;
  --accent: #00e87b;
  --accent-dim: #00c968;
  --accent-glow: rgba(0, 232, 123, 0.12);
  --alert: #ff5c5c;
  --yellow: #ffc857;
  --border: #1e2330;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
  gap: 48px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 232, 123, 0.2);
  padding: 6px 16px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  color: #fff;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin-top: 24px;
  line-height: 1.7;
}

/* Terminal */
.hero-terminal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 700px;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background: var(--alert); }
.terminal-dot.yellow { background: var(--yellow); }
.terminal-dot.green { background: var(--accent); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  margin-left: 8px;
  letter-spacing: 1px;
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
}

.terminal-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.t-time {
  color: var(--fg-muted);
  margin-right: 12px;
}

.t-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-right: 8px;
}

.t-tag.ok {
  background: rgba(0, 232, 123, 0.15);
  color: var(--accent);
}

.t-tag.alert {
  background: rgba(255, 92, 92, 0.15);
  color: var(--alert);
}

.blink .t-cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ========== PROBLEM ========== */
.problem {
  padding: 120px 24px;
  background: var(--bg);
}

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

.problem h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  color: #fff;
  max-width: 700px;
  line-height: 1.25;
  margin-bottom: 60px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 36px 28px;
}

.problem-icon {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--alert);
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.problem-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ========== FEATURES ========== */
.features {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

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

.features-header {
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.features-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 32px;
  transition: border-color 0.2s ease;
}

.feature-block:hover {
  border-color: rgba(0, 232, 123, 0.3);
}

.feature-large {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 232, 123, 0.04) 100%);
  border-color: rgba(0, 232, 123, 0.15);
}

.feature-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-block h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.feature-block p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
}

/* ========== PROOF ========== */
.proof {
  padding: 100px 24px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.proof-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.proof-number {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 12px;
}

.proof-label {
  font-size: 0.9rem;
  color: var(--fg-muted);
  font-weight: 500;
}

/* ========== CLOSING ========== */
.closing {
  padding: 140px 24px;
  text-align: center;
  background: radial-gradient(ellipse at center bottom, rgba(0, 232, 123, 0.06) 0%, var(--bg) 70%);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
  line-height: 1.15;
}

.closing-text {
  font-size: 1.08rem;
  color: var(--fg-muted);
  line-height: 1.8;
}

/* ========== FOOTER ========== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}

.footer-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-large {
    grid-column: span 1;
  }
  
  .proof-stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .hero {
    padding: 60px 20px 40px;
    min-height: auto;
  }
  
  .hero h1 {
    letter-spacing: -1px;
  }
  
  .terminal-line {
    font-size: 11px;
  }
  
  .problem,
  .features,
  .proof,
  .closing {
    padding: 80px 20px;
  }
}

@media (max-width: 480px) {
  .proof-stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}