/* Lumen — Landing page styles */
:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #7d8590;
  --accent: #58a6ff;
  --accent-glow: rgba(88, 166, 255, 0.15);
  --success: #3fb950;
  --warning: #d29922;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Hero */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.badge {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid rgba(88, 166, 255, 0.3);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.1;
}

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

.hero .tagline {
  font-size: 1.25rem;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #79b8ff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(88, 166, 255, 0.3);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #21262d;
  border-color: #484f58;
}

/* Features */
.features {
  padding: 60px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.section-label {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 40px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(88, 166, 255, 0.4);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* API Preview */
.api-preview {
  padding: 60px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.code-header {
  background: #1c2128;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.code-header span {
  color: var(--muted);
  font-size: 0.8rem;
  margin-left: 8px;
}

pre {
  padding: 24px;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.7;
}

code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
}

.string { color: #a5d6ff; }
.keyword { color: #ff7b72; }
.comment { color: var(--muted); }
.property { color: #7ee787; }
.number { color: #f2cc60; }

/* Footer */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Search bar */
.search-wrapper {
  max-width: 580px;
  margin: 0 auto 48px;
}

.search-form {
  display: flex;
  gap: 0;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-form:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(249, 173, 60, 0.08), 0 0 20px rgba(249, 173, 60, 0.1);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 14px 18px;
  font-size: 0.95rem;
  color: var(--text);
  font-family: 'SFMono', 'Fira Code', Consolas, monospace;
}

.search-input::placeholder {
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.search-btn {
  background: var(--accent);
  color: #0d1117;
  border: none;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.01em;
}

.search-btn:hover:not(:disabled) {
  background: #f0c060;
  transform: none;
}

.search-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.search-hint {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 10px;
  opacity: 0.7;
}

/* Search result */
.search-result {
  margin: 0 auto 40px;
  max-width: 580px;
  background: var(--surface);
  border: 1.5px solid var(--success);
  border-radius: 12px;
  overflow: hidden;
  animation: slideDown 0.3s ease;
}

.search-result.error {
  border-color: var(--warning);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-header {
  background: #0f2318;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(63, 185, 80, 0.2);
}

.result-header.error-header { background: #1f1500; border-bottom-color: rgba(210, 153, 34, 0.2); }

.result-header-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

.result-header.error-header .result-header-dot { background: var(--warning); }

.result-header span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--success);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.result-header.error-header span { color: var(--warning); }

.result-body {
  padding: 24px;
  display: grid;
  gap: 16px;
}

.result-product-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.result-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.result-meta-item {
  background: #0d1117;
  border-radius: 8px;
  padding: 12px 16px;
}

.result-meta-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.result-meta-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.result-meta-value.price-raw {
  font-size: 1rem;
  color: var(--text);
}

.result-asin-badge {
  display: inline-block;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.result-link {
  display: block;
  text-align: right;
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.15s;
}

.result-link:hover { opacity: 1; text-decoration: underline; }

.result-error-msg {
  font-size: 0.9rem;
  color: var(--warning);
  font-family: monospace;
}

/* Loading pulse */
.search-btn .pulse {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(13,17,23,0.4);
  border-top-color: #0d1117;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Stats */
.stats {
  padding: 48px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  text-align: center;
}

.stat h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat p {
  color: var(--muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 600px) {
  .hero { padding: 60px 20px 40px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .features-grid { grid-template-columns: 1fr; }
  pre { font-size: 0.8rem; padding: 16px; }
  .search-wrapper { padding: 0 4px; }
  .search-btn { padding: 12px 18px; }
  .result-meta { grid-template-columns: 1fr; }
}