/* ============================
   Git Command Generator — Styles
   Premium dark mode, glassmorphism
   ============================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
  --primary: #F97316;
  --primary-glow: rgba(249, 115, 22, 0.3);
  --accent: #6366F1;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --bg: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: rgba(30, 41, 59, 0.6);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --text: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border: rgba(148, 163, 184, 0.1);
  --border-hover: rgba(249, 115, 22, 0.3);
  --success: #22C55E;
  --danger: #EF4444;
  --warning: #EAB308;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 60px rgba(249, 115, 22, 0.08);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

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

/* Background gradient */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(249, 115, 22, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(99, 102, 241, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ---- Layout ---- */
.app {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

/* ---- Header ---- */
.header {
  text-align: center;
  padding: 48px 0 32px;
}

.header__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-size: 36px;
  margin-bottom: 20px;
  box-shadow: 0 8px 30px rgba(249, 115, 22, 0.25);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.header__title {
  font-size: 2.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.header__subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 400;
  max-width: 560px;
  margin: 0 auto;
}

/* ---- Search Box ---- */
.search-container {
  position: relative;
  max-width: 680px;
  margin: 32px auto;
}

.search-input {
  width: 100%;
  padding: 18px 56px 18px 52px;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(20px);
  outline: none;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow), var(--shadow);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.2rem;
  pointer-events: none;
}

.search-clear {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  transition: var(--transition);
  display: none;
}

.search-clear.visible {
  display: block;
}

.search-clear:hover {
  color: var(--text);
  background: var(--bg-secondary);
}

/* ---- Tabs / Navigation ---- */
.tabs {
  display: flex;
  gap: 6px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
  padding: 6px;
  background: var(--bg-card);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.tab {
  padding: 10px 18px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.tab:hover {
  color: var(--text);
  background: rgba(249, 115, 22, 0.08);
}

.tab.active {
  color: var(--bg);
  background: var(--primary);
  box-shadow: 0 2px 12px var(--primary-glow);
}

/* ---- Category pills ---- */
.category-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 28px;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.category-pill:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.category-pill.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(249, 115, 22, 0.1);
}

.category-pill__icon {
  font-size: 1rem;
}

/* ---- Content sections ---- */
.content-section {
  display: none;
}

.content-section.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

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

/* ---- Command cards ---- */
.commands-grid {
  display: grid;
  gap: 16px;
}

.command-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  cursor: default;
}

.command-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.command-card.destructive {
  border-left: 3px solid var(--danger);
}

.command-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
}

.command-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.command-card__actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}

.btn-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(249, 115, 22, 0.08);
}

.btn-icon.favorited {
  color: var(--warning);
  border-color: var(--warning);
  background: rgba(234, 179, 8, 0.1);
}

.btn-icon.copied {
  color: var(--success);
  border-color: var(--success);
  background: rgba(34, 197, 94, 0.1);
}

.command-card__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.5;
}

.command-block {
  position: relative;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 48px 14px 16px;
  margin-bottom: 12px;
}

.command-block code {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--primary);
  word-break: break-all;
}

.command-block .copy-inline {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
}

/* ---- Flags ---- */
.flags {
  margin-top: 12px;
}

.flags__title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.flag-item {
  display: flex;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.05);
}

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

.flag-item code {
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.flag-item span {
  color: var(--text-secondary);
}

/* ---- Warning ---- */
.warning-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-xs);
  color: var(--danger);
  font-size: 0.82rem;
  font-weight: 500;
  margin-top: 10px;
}

/* ---- Scenario cards ---- */
.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
}

.scenario-card:hover {
  border-color: var(--accent-glow);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow);
}

.scenario-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 6px;
}

.scenario-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.scenario-card__category {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent);
}

.scenario-card__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.scenario-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.scenario-step {
  display: flex;
  gap: 14px;
  padding: 10px;
  background: rgba(15, 23, 42, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

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

.step-content code {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--primary);
  display: block;
  word-break: break-all;
  margin-bottom: 4px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.4;
}

/* ---- Cheat sheet ---- */
.cheatsheet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.cheatsheet-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(12px);
}

.cheatsheet-section__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.cheatsheet-section__icon {
  font-size: 1.2rem;
}

.cheatsheet-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.05);
  align-items: baseline;
}

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

.cheatsheet-item code {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.cheatsheet-item span {
  color: var(--text-secondary);
  font-size: 0.82rem;
  text-align: right;
}

/* ---- Favorites ---- */
.favorites-empty {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-muted);
}

.favorites-empty__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.favorites-empty__text {
  font-size: 1rem;
}

.favorites-empty__hint {
  font-size: 0.85rem;
  margin-top: 8px;
  color: var(--text-muted);
}

/* ---- Stats bar ---- */
.stats-bar {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.stat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.stat__value {
  font-weight: 700;
  color: var(--primary);
  font-size: 1.1rem;
}

/* ---- No results ---- */
.no-results {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.no-results__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.4;
}

.no-results__text {
  font-size: 1rem;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 12px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 1000;
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .app {
    padding: 16px 14px 60px;
  }

  .header {
    padding: 32px 0 24px;
  }

  .header__title {
    font-size: 1.8rem;
  }

  .header__subtitle {
    font-size: 0.95rem;
  }

  .search-input {
    padding: 16px 48px 16px 46px;
    font-size: 0.95rem;
  }

  .tabs {
    gap: 4px;
    padding: 4px;
  }

  .tab {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

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

  .command-card,
  .scenario-card {
    padding: 18px;
  }

  .stats-bar {
    gap: 16px;
  }

  .scenario-step {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .header__title {
    font-size: 1.5rem;
  }

  .category-filters {
    gap: 6px;
  }

  .category-pill {
    padding: 6px 12px;
    font-size: 0.78rem;
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ---- Selection ---- */
::selection {
  background: var(--primary);
  color: var(--bg);
}