/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #16181f;
  --card: #1a1d27;
  --border: #2a2d3a;
  --accent: #00e5c3;
  --accent-dim: #00e5c320;
  --accent-mid: #00e5c360;
  --text: #e8e6e3;
  --text-dim: #6e6d6a;
  --text-muted: #3a3a3d;
  --purple: #a855f7;

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 8px;
  --radius-lg: 14px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* === HERO === */
.hero {
  padding: 100px 40px 80px;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 32px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.03em;
}

/* === CONSISTENCY METER === */
.consistency-meter {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.meter-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.meter-bar {
  position: relative;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  margin-bottom: 10px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #00b89c);
  border-radius: 4px;
  transition: width 1s ease;
}

.meter-value {
  position: absolute;
  right: 0;
  top: -22px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
}

.meter-meta {
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* === PROMPT CARD === */
.prompt-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.prompt-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.prompt-category {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.prompt-consistency {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.prompt-code {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.7;
  white-space: pre-wrap;
  border-bottom: 1px solid var(--border);
}

.prompt-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--surface);
}

.prompt-price {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}

.prompt-runs {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* === STATS === */
.stats {
  padding: 60px 40px;
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1.4fr;
  gap: 0;
  align-items: center;
}

.stat-item {
  padding: 0 40px;
}

.stat-number {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* === HOW IT WORKS === */
.how-it-works {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
}

.how-header {
  max-width: 1140px;
  margin: 0 auto 60px;
  text-align: left;
}

.how-header h2 {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.how-sub {
  font-size: 1rem;
  color: var(--text-dim);
}

.how-grid {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.how-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.how-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-mid);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.how-card h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.how-card p {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 20px;
}

.how-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.how-list li {
  font-size: 0.88rem;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}

.how-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* === PROMPT PREVIEW === */
.prompt-preview {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.preview-layout {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.preview-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.preview-text h2 {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.preview-text p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.preview-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.preview-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.preview-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.test-results {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.test-row {
  display: grid;
  grid-template-columns: 140px 1fr 40px;
  align-items: center;
  gap: 12px;
}

.test-model {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.test-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.test-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
}

.test-score {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-align: right;
}

.preview-outputs {
  padding: 20px;
}

.output-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.output-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--muted);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.output-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 7px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* === PHILOSOPHY === */
.philosophy {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
}

.philosophy-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.philosophy-quote {
  border-left: 3px solid var(--accent);
  padding-left: 32px;
}

.philosophy-quote p {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-dim);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 16px;
}

.quote-attr {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
}

.philosophy-text h2 {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.15;
}

.philosophy-text p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* === FOOTER === */
footer {
  padding: 40px 40px;
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  display: block;
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-links {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 60px 24px 50px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-headline { font-size: 2.2rem; }

  .stats { padding: 40px 24px; }
  .stats-grid { grid-template-columns: 1fr; gap: 30px; }
  .stat-divider { display: none; }
  .stat-item { padding: 0; }

  .how-it-works { padding: 60px 24px; }
  .how-grid { grid-template-columns: 1fr; }

  .prompt-preview { padding: 60px 24px; }
  .preview-layout { grid-template-columns: 1fr; }

  .philosophy { padding: 60px 24px; }
  .philosophy-inner { grid-template-columns: 1fr; gap: 40px; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
}

@media (max-width: 480px) {
  .test-row { grid-template-columns: 100px 1fr 36px; }
}