/* ============================================
   Mole — Deep clean and optimize your Mac
   Inspired by autoresearch.lol
   ============================================ */

:root {
  --bg: #0a0a0b;
  --bg-card: #111113;
  --bg-card-hover: #18181b;
  --bg-code: #161618;
  --border: #1f1f23;
  --text: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --accent: #64ffda;
  --accent-dim: rgba(100, 255, 218, 0.1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 800px;
  --radius: 12px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

/* ---- Hero ---- */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(100, 255, 218, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--accent-dim);
  border: 1px solid rgba(100, 255, 218, 0.15);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--accent) 0%, #80ffe5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border: none;
}

.btn-primary:hover {
  background: #d4d4d8;
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--text-tertiary);
  transform: translateY(-1px);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* ---- Sections ---- */
.section {
  padding: 80px 0;
  text-align: center;
}

.section-dark {
  background: var(--bg-card);
}

.section-label {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

/* ---- Feature Grid ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  text-align: left;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, background 0.2s;
}

.feature-card:hover {
  border-color: var(--text-tertiary);
  background: var(--bg-card-hover);
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Steps ---- */
.steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
}

.step {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.step:hover {
  border-color: var(--text-tertiary);
}

.step-number {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  min-width: 28px;
  padding-top: 2px;
}

.step-content {
  flex: 1;
  min-width: 0;
}

.step-content h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.code-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  gap: 12px;
}

.code-block code {
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.copy-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.copy-btn:hover {
  color: var(--text);
}

/* ---- Commands Grid ---- */
.commands-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  text-align: left;
}

.command-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, background 0.2s;
}

.command-card:hover {
  border-color: var(--text-tertiary);
  background: var(--bg-card-hover);
}

.command-name {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  white-space: nowrap;
}

.command-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ---- Detail Blocks ---- */
.detail-block {
  text-align: left;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.detail-block:last-child {
  border-bottom: none;
}

.detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.detail-header h3 {
  font-size: 17px;
  font-weight: 600;
}

.code-tag {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 11px;
  padding: 2px 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(100, 255, 218, 0.15);
  border-radius: 4px;
  color: var(--accent);
}

.detail-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Safety Grid ---- */
.safety-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.safety-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  align-items: flex-start;
  transition: border-color 0.2s;
}

.safety-item:hover {
  border-color: var(--text-tertiary);
}

.safety-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.safety-item h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.safety-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---- FAQ ---- */
.faq-list {
  text-align: left;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: var(--bg);
  border: none;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-card-hover);
}

.faq-question svg {
  transition: transform 0.2s;
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-answer code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ---- Footer ---- */
.footer {
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-dot {
  color: var(--border);
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    display: none;
  }

  .section-title {
    font-size: 26px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .commands-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }
}