/* ═══════════════════════════════════════════════════════════════
   MTG Practice Arena — Main Stylesheet
   Dark fantasy theme with gold accents
   ═══════════════════════════════════════════════════════════════ */

:root {
  --bg-deep: #0d0d1a;
  --bg-dark: #1a1a2e;
  --bg-mid: #16213e;
  --bg-card: #1e2a45;
  --bg-panel: #0f1923;
  --accent-gold: #c9a84c;
  --accent-gold-light: #e8c96a;
  --accent-gold-dark: #9a7a30;
  --accent-red: #c0392b;
  --accent-blue: #2980b9;
  --accent-green: #27ae60;
  --accent-white: #ecf0f1;
  --accent-black: #2c3e50;
  --text-primary: #e8e8e8;
  --text-secondary: #a0a8b8;
  --text-muted: #6a7485;
  --border-color: #2a3a5a;
  --border-gold: rgba(201, 168, 76, 0.3);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px rgba(201, 168, 76, 0.2);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --font-display: 'Cinzel', serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.2s ease;
}

/* ─── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

a { color: var(--accent-gold); text-decoration: none; }
a:hover { color: var(--accent-gold-light); text-decoration: underline; }

img { max-width: 100%; height: auto; }

/* ─── Orientation Overlay ─────────────────────────────────────── */
.orientation-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(10, 10, 20, 0.97);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem;
}
.orientation-overlay.hidden { display: none; }
.orientation-content {
  text-align: center; max-width: 360px;
}
.orientation-icon {
  font-size: 4rem; margin-bottom: 1rem;
  animation: rotate-hint 2s ease-in-out infinite;
}
@keyframes rotate-hint {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(90deg); }
}
.orientation-content h2 {
  font-family: var(--font-display);
  color: var(--accent-gold);
  font-size: 1.8rem; margin-bottom: 1rem;
}
.orientation-content p { color: var(--text-secondary); margin-bottom: 0.75rem; line-height: 1.6; }
.orientation-sub { font-size: 0.9rem; color: var(--text-muted); }

/* ─── Navbar ──────────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13, 13, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-gold);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.5rem; height: 60px;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.1rem; color: var(--accent-gold);
  cursor: pointer;
}
.nav-logo { font-size: 1.4rem; }
.nav-links { display: flex; gap: 0.25rem; }
.nav-link {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem; font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent-gold);
  background: rgba(201, 168, 76, 0.1);
  text-decoration: none;
}
.nav-hamburger {
  display: none;
  background: none; border: none;
  color: var(--text-primary); font-size: 1.5rem;
  cursor: pointer; padding: 0.25rem;
}

/* ─── Pages ───────────────────────────────────────────────────── */
.page { display: none; min-height: calc(100vh - 60px); }
.page.active { display: block; }

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 500;
  border: none; cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold-dark), var(--accent-gold));
  color: #1a1000;
}
.btn-primary:hover { background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light)); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(201,168,76,0.3); }
.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
}
.btn-secondary:hover { background: rgba(201,168,76,0.1); }
.btn-danger {
  background: var(--accent-red);
  color: white;
}
.btn-danger:hover { background: #e74c3c; }
.btn-large { padding: 0.75rem 2rem; font-size: 1rem; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ─── Hero ────────────────────────────────────────────────────── */
.hero {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2rem; align-items: center;
  padding: 4rem 3rem;
  background: radial-gradient(ellipse at 30% 50%, rgba(201,168,76,0.05) 0%, transparent 60%),
              linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
  min-height: 60vh;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.2;
  background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.25rem;
}
.hero-subtitle {
  font-size: 1.1rem; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 2rem; max-width: 500px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-cards { display: flex; justify-content: center; align-items: center; }
.hero-card-stack { position: relative; width: 200px; height: 280px; }
.card-preview {
  position: absolute; width: 140px; height: 195px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-mid));
  border: 2px solid var(--border-gold);
  box-shadow: var(--shadow-card);
}
.card-preview-1 { transform: rotate(-12deg) translate(-30px, 20px); background: linear-gradient(135deg, #1a2a4a, #0d1a30); }
.card-preview-2 { transform: rotate(-4deg) translate(10px, 10px); background: linear-gradient(135deg, #2a1a1a, #1a0d0d); }
.card-preview-3 { transform: rotate(6deg) translate(40px, 0px); background: linear-gradient(135deg, #1a2a1a, #0d1a0d); }

/* ─── Features ────────────────────────────────────────────────── */
.features-section {
  padding: 3rem;
  background: var(--bg-mid);
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.8rem; color: var(--accent-gold);
  text-align: center; margin-bottom: 2rem;
}
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem; max-width: 1200px; margin: 0 auto;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.feature-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.feature-card h3 { font-family: var(--font-display); color: var(--accent-gold); margin-bottom: 0.5rem; font-size: 1rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ─── Disclaimer ──────────────────────────────────────────────── */
.disclaimer {
  padding: 1.5rem 3rem;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  text-align: center;
}
.disclaimer p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.6; }

/* ─── Page Header ─────────────────────────────────────────────── */
.page-header {
  padding: 2rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, var(--bg-dark), var(--bg-deep));
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: 2rem; color: var(--accent-gold); margin-bottom: 0.5rem;
}
.page-header p { color: var(--text-secondary); }

/* ─── Deck Grid ───────────────────────────────────────────────── */
.deck-filters {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-color);
}
.filter-btn {
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem; cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(201,168,76,0.1);
}
.deck-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem; padding: 2rem 2.5rem;
}
.deck-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.deck-card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
.deck-card-header {
  padding: 1.25rem 1.25rem 0.75rem;
  background: linear-gradient(135deg, var(--bg-mid), var(--bg-panel));
  border-bottom: 1px solid var(--border-color);
}
.deck-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem; color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.deck-card-meta {
  display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center;
}
.badge {
  display: inline-flex; align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
  font-size: 0.75rem; font-weight: 500;
}
.badge-format { background: rgba(41,128,185,0.2); color: #5dade2; border: 1px solid rgba(41,128,185,0.3); }
.badge-beginner { background: rgba(39,174,96,0.2); color: #58d68d; border: 1px solid rgba(39,174,96,0.3); }
.badge-intermediate { background: rgba(230,126,34,0.2); color: #f0a500; border: 1px solid rgba(230,126,34,0.3); }
.badge-advanced { background: rgba(192,57,43,0.2); color: #e74c3c; border: 1px solid rgba(192,57,43,0.3); }
.deck-card-body { padding: 1rem 1.25rem; }
.deck-card-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 0.75rem; }
.deck-card-playstyle { font-size: 0.8rem; color: var(--text-muted); }
.deck-card-playstyle strong { color: var(--text-secondary); }
.deck-card-colors { display: flex; gap: 0.3rem; margin-bottom: 0.5rem; }
.mana-pip {
  width: 22px; height: 22px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700;
}
.mana-W { background: #f9f6ee; color: #333; }
.mana-U { background: #0e68ab; color: white; }
.mana-B { background: #1a1a1a; color: #ccc; border: 1px solid #444; }
.mana-R { background: #d3202a; color: white; }
.mana-G { background: #00733e; color: white; }
.mana-C { background: #ccc; color: #333; }
.mana-X { background: #888; color: white; }
/* Smaller pip for inline use in card lists, modals, hand cards */
.mana-pip-sm {
  width: 16px; height: 16px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.6rem; font-weight: 700; flex-shrink: 0;
  vertical-align: middle;
}
.mana-cost-row { display: inline-flex; gap: 2px; align-items: center; flex-wrap: wrap; }
.deck-card-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex; gap: 0.5rem;
}

/* ─── Deck Builder ────────────────────────────────────────────── */
.builder-layout {
  display: grid; grid-template-columns: 1fr 380px;
  height: calc(100vh - 60px - 130px);
  overflow: hidden;
}
.builder-search-panel {
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border-color);
  overflow: hidden;
}
.builder-controls {
  padding: 1rem 1.5rem;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-color);
  display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
}
.format-selector { display: flex; align-items: center; gap: 0.5rem; }
.format-selector label { color: var(--text-secondary); font-size: 0.9rem; }
.deck-name-input input { flex: 1; }
.card-search {
  padding: 1rem 1.5rem;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
}
.search-row { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.search-row input { flex: 1; }
.search-filters { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.search-results {
  flex: 1; overflow-y: auto; padding: 1rem 1.5rem;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem; align-content: start;
}
.search-hint { color: var(--text-muted); font-size: 0.9rem; grid-column: 1/-1; }
.builder-deck-panel {
  display: flex; flex-direction: column;
  background: var(--bg-panel);
  overflow: hidden;
}
.deck-stats {
  padding: 0.75rem 1rem;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-color);
  display: flex; gap: 1rem; flex-wrap: wrap;
  font-size: 0.85rem;
}
.deck-stats .stat { color: var(--text-secondary); }
.deck-stats strong { color: var(--accent-gold); }
.deck-list {
  flex: 1; overflow-y: auto; padding: 0.75rem;
}
.deck-empty-hint { color: var(--text-muted); font-size: 0.85rem; padding: 1rem; text-align: center; }
.deck-list-group { margin-bottom: 0.75rem; }
.deck-list-group-title {
  font-size: 0.75rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em;
  padding: 0.25rem 0.5rem; margin-bottom: 0.25rem;
}
.deck-list-item {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: var(--transition);
}
.deck-list-item:hover { background: rgba(255,255,255,0.05); }
.deck-list-item-count {
  min-width: 20px; text-align: center;
  color: var(--accent-gold); font-weight: 600; font-size: 0.8rem;
}
.deck-list-item-name { flex: 1; color: var(--text-primary); }
.deck-list-item-cost { color: var(--text-muted); font-size: 0.75rem; }
.deck-list-item-remove {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 0.1rem 0.3rem; border-radius: 3px;
  font-size: 0.9rem; transition: var(--transition);
}
.deck-list-item-remove:hover { color: var(--accent-red); background: rgba(192,57,43,0.1); }
.deck-actions {
  padding: 0.75rem;
  border-top: 1px solid var(--border-color);
  display: flex; gap: 0.5rem;
}
.deck-actions .btn { flex: 1; }

/* ─── Card Thumbnails (search results) ───────────────────────── */
.card-thumb {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}
.card-thumb:hover { border-color: var(--accent-gold); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.card-thumb img {
  width: 100%; display: block;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.card-thumb-no-img {
  width: 100%; padding-top: 139.5%;
  background: linear-gradient(135deg, var(--bg-mid), var(--bg-panel));
  position: relative;
}
.card-thumb-no-img-text {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 0.5rem; text-align: center;
}
.card-thumb-name { padding: 0.4rem 0.5rem; font-size: 0.78rem; color: var(--text-primary); font-weight: 500; }
.card-thumb-type { padding: 0 0.5rem 0.3rem; font-size: 0.7rem; color: var(--text-muted); }
.card-thumb-add {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(201,168,76,0.9);
  color: #1a1000; font-weight: 700; font-size: 0.8rem;
  padding: 0.3rem; text-align: center;
  opacity: 0; transition: var(--transition);
}
.card-thumb:hover .card-thumb-add { opacity: 1; }

/* ─── Form Controls ───────────────────────────────────────────── */
input[type="text"], input[type="search"], select, textarea {
  background: var(--bg-mid);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-body); font-size: 0.9rem;
  transition: var(--transition);
  width: 100%;
}
input[type="text"]:focus, input[type="search"]:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.15);
}
select option { background: var(--bg-mid); }

/* ─── Rules Page ──────────────────────────────────────────────── */
.rules-layout {
  display: grid; grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 60px - 130px);
}
.rules-nav {
  position: sticky; top: 60px;
  height: calc(100vh - 60px);
  overflow-y: auto;
  padding: 1.5rem 1rem;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column; gap: 0.25rem;
}
.rules-nav-link {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: var(--transition);
  cursor: pointer;
}
.rules-nav-link:hover, .rules-nav-link.active {
  color: var(--accent-gold);
  background: rgba(201,168,76,0.1);
  text-decoration: none;
}
.rules-content {
  padding: 2rem 3rem;
  max-width: 800px;
  overflow-y: auto;
}
.rules-section { margin-bottom: 3rem; }
.rules-section h2 {
  font-family: var(--font-display);
  font-size: 1.6rem; color: var(--accent-gold);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-gold);
}
.rules-section h3 {
  font-size: 1.1rem; color: var(--accent-gold-light);
  margin: 1.25rem 0 0.5rem;
}
.rules-section p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 0.75rem; }
.rules-section ul, .rules-section ol {
  padding-left: 1.5rem; color: var(--text-secondary); line-height: 1.8;
  margin-bottom: 0.75rem;
}
.rules-section li { margin-bottom: 0.25rem; }
.rules-table {
  width: 100%; border-collapse: collapse; margin: 1rem 0;
  font-size: 0.875rem;
}
.rules-table th {
  background: var(--bg-mid); color: var(--accent-gold);
  padding: 0.6rem 0.75rem; text-align: left;
  border: 1px solid var(--border-color);
  font-family: var(--font-display); font-weight: 600;
}
.rules-table td {
  padding: 0.5rem 0.75rem; color: var(--text-secondary);
  border: 1px solid var(--border-color);
  vertical-align: top;
}
.rules-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.rules-callout {
  background: rgba(201,168,76,0.08);
  border: 1px solid var(--border-gold);
  border-left: 3px solid var(--accent-gold);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.rules-callout p { color: var(--text-primary); margin: 0; }

/* ─── Game Layout ─────────────────────────────────────────────── */
.game-layout {
  display: grid;
  grid-template-rows: auto 1fr 1fr auto;
  grid-template-columns: 1fr 280px;
  height: calc(100vh - 60px);
  gap: 0;
  background: #0a1a0a;
  overflow: hidden;
}
.game-loading {
  grid-column: 1/-1; grid-row: 1/-1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1rem;
  color: var(--text-secondary);
}

/* Opponent area */
.game-opponent {
  grid-column: 1; grid-row: 1;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 0.75rem 1rem;
  display: flex; align-items: center; gap: 1rem;
}
.player-info {
  display: flex; align-items: center; gap: 0.75rem;
}
.player-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-mid);
  border: 2px solid var(--border-gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.player-name { font-weight: 600; font-size: 0.9rem; }
.player-life {
  font-family: var(--font-display);
  font-size: 1.4rem; color: var(--accent-gold);
  font-weight: 700;
}
.player-life.low { color: var(--accent-red); animation: pulse-red 1s ease-in-out infinite; }
@keyframes pulse-red { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
.player-hand-count { font-size: 0.8rem; color: var(--text-muted); }
.player-library-count { font-size: 0.8rem; color: var(--text-muted); }

/* Opponent hand (face down) */
.game-opponent-hand {
  display: flex; gap: 4px; flex-wrap: nowrap; overflow: hidden;
}
.card-back {
  width: 32px; height: 44px; border-radius: 3px;
  background: linear-gradient(135deg, #1a0a2e, #0d0520);
  border: 1px solid rgba(150,100,200,0.4);
  flex-shrink: 0;
}

/* Opponent battlefield */
.game-opponent-bf {
  grid-column: 1; grid-row: 2;
  background: linear-gradient(180deg, rgba(0,20,0,0.4), rgba(0,10,0,0.6));
  border-bottom: 2px solid rgba(255,255,255,0.1);
  padding: 0.4rem 1rem;
  overflow-y: auto;
  min-height: 0;
}

/* Player battlefield */
.game-player-bf {
  grid-column: 1; grid-row: 3;
  background: linear-gradient(180deg, rgba(0,10,0,0.6), rgba(0,20,0,0.4));
  border-top: 2px solid rgba(255,255,255,0.1);
  padding: 0.4rem 1rem;
  overflow-y: auto;
  min-height: 0;
}

/* Player hand */
.game-player-hand {
  grid-column: 1; grid-row: 4;
  background: rgba(0,0,0,0.5);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 0.4rem 1rem;
  display: flex; align-items: center; gap: 0.5rem;
  overflow-x: auto;
  min-height: 100px;
  max-height: 130px;
}

/* Game sidebar */
.game-sidebar {
  grid-column: 2; grid-row: 1 / -1;
  background: var(--bg-panel);
  border-left: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.game-sidebar-header {
  padding: 0.75rem 1rem;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-display);
  font-size: 0.9rem; color: var(--accent-gold);
}
.game-phase-indicator {
  padding: 0.5rem 1rem;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8rem;
}
.phase-label { color: var(--text-muted); }
.phase-value { color: var(--accent-gold); font-weight: 600; }
.game-mana-pool {
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex; flex-wrap: wrap; gap: 0.3rem; align-items: center;
}
.mana-count {
  display: flex; align-items: center; gap: 0.2rem;
  font-size: 0.8rem;
}
.game-actions {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.game-log {
  flex: 1; overflow-y: auto; padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
}
.log-entry {
  padding: 0.2rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.03);
  line-height: 1.5;
}
.log-entry.log-important { color: var(--accent-gold); }
.log-entry.log-damage { color: #e74c3c; }
.log-entry.log-ai { color: #9b59b6; }

/* Battlefield zones */
.bf-zone-label {
  font-size: 0.7rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}
.bf-cards {
  display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: flex-start;
}

/* Cards in hand / battlefield */
.game-card {
  position: relative;
  width: 80px; height: 112px; flex-shrink: 0;
  cursor: pointer;
  transition: var(--transition);
  border-radius: 5px;
  border: 2px solid transparent;
}
.game-card:hover { transform: translateY(-8px) scale(1.05); z-index: 10; }
.game-card.selected { border-color: var(--accent-gold); box-shadow: 0 0 12px rgba(201,168,76,0.5); }
.game-card.tapped { transform: rotate(90deg); margin: 10px 10px 10px 0; }
.game-card.tapped:hover { transform: rotate(90deg) translateY(-5px); }
.game-card.summoning-sick { opacity: 0.7; }
.game-card img { width: 100%; border-radius: 4px; display: block; }
.game-card-placeholder {
  width: 80px; height: 112px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-mid));
  border-radius: 5px;
  border: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 4px; text-align: center;
  font-size: 0.6rem; color: var(--text-secondary);
}
.game-card-placeholder .card-name { font-weight: 600; font-size: 0.65rem; color: var(--text-primary); margin-bottom: 2px; }
.game-card-placeholder .card-type { color: var(--text-muted); font-size: 0.58rem; }
.game-card-placeholder .card-pt { color: var(--accent-gold); font-size: 0.7rem; font-weight: 700; margin-top: 4px; }

/* Commander zone */
.commander-zone {
  display: flex; flex-direction: column; align-items: center;
  padding: 0.5rem;
  background: rgba(201,168,76,0.05);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
}
.commander-zone-label {
  font-size: 0.65rem; color: var(--accent-gold);
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

/* ─── Modals ──────────────────────────────────────────────────── */
.modal { position: fixed; inset: 0; z-index: 500; display: flex; align-items: center; justify-content: center; }
.modal.hidden { display: none; }
/* Card detail modal must always appear above deck preview modal */
#modal-card-detail { z-index: 600; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.8); }
.modal-content {
  position: relative; z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 500px; width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8);
}
.modal-content h2 {
  font-family: var(--font-display);
  color: var(--accent-gold); margin-bottom: 1.25rem;
}
.modal-card { max-width: 360px; padding: 1rem; }
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none;
  color: var(--text-muted); font-size: 1.2rem;
  cursor: pointer; padding: 0.25rem;
}
.modal-close:hover { color: var(--text-primary); }
.modal-actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; justify-content: flex-end; }
.setup-option { margin-bottom: 1rem; }
.setup-option label { display: block; color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 0.4rem; }
.setup-deck-info {
  background: var(--bg-mid);
  border-radius: var(--radius-md);
  padding: 1rem; margin-bottom: 1.25rem;
}
.setup-deck-info h3 { font-family: var(--font-display); color: var(--accent-gold); margin-bottom: 0.25rem; }
.setup-deck-info p { font-size: 0.85rem; color: var(--text-secondary); }

/* Card detail in modal */
.card-detail-layout {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
@media (min-width: 480px) {
  .card-detail-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .card-detail-layout .card-detail-img {
    width: 200px;
    flex-shrink: 0;
    margin-bottom: 0;
  }
  .card-detail-info {
    flex: 1;
    min-width: 0;
  }
}
.card-detail-img { width: 100%; border-radius: var(--radius-md); margin-bottom: 0; }
.card-detail-name { font-family: var(--font-display); color: var(--accent-gold); font-size: 1.1rem; margin-bottom: 0.25rem; }
.card-detail-cost { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0.25rem; }
.card-detail-type { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 0.5rem; }
.card-detail-text { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; white-space: pre-wrap; }
.card-detail-pt { color: var(--accent-gold); font-weight: 700; margin-top: 0.5rem; }
.card-detail-actions {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.card-detail-actions .btn {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
}

/* Deck preview modal */
.modal-deck-preview {
  max-width: 480px;
  width: 92%;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
}

/* Card thumbnails — always show tap hint on mobile */
.card-thumb { position: relative; }
@media (hover: none) {
  .card-thumb .card-thumb-add {
    opacity: 0.85;
  }
}
/* Increase touch target size for card-thumb-add */
.card-thumb-add {
  font-size: 0.7rem;
  padding: 0.35rem;
  letter-spacing: 0.02em;
}

/* ─── Loading ─────────────────────────────────────────────────── */
.loading-spinner {
  color: var(--text-muted); font-size: 0.9rem;
  padding: 2rem; text-align: center;
}
.loading-spinner-large {
  width: 48px; height: 48px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Utilities ───────────────────────────────────────────────── */
.hidden { display: none !important; }
.text-gold { color: var(--accent-gold); }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }

/* ─── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-gold-dark); }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Tablet & Mobile
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .builder-layout { grid-template-columns: 1fr; height: auto; }
  .builder-deck-panel { height: 400px; }
  .rules-layout { grid-template-columns: 1fr; }
  .rules-nav { position: static; height: auto; flex-direction: row; flex-wrap: wrap; padding: 0.75rem; }
  .game-layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr 1fr auto; overflow: hidden; }
  .game-sidebar { grid-column: 1; grid-row: 5; height: 200px; flex-direction: row; }
  .game-log { flex: 1; }
}

@media (max-width: 768px) {
  .navbar { padding: 0 1rem; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--bg-dark); border-bottom: 1px solid var(--border-color); padding: 0.5rem; z-index: 99; }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: block; }
  .hero { grid-template-columns: 1fr; padding: 2rem 1.5rem; text-align: center; }
  .hero-cards { display: none; }
  .hero-actions { justify-content: center; }
  .features-section { padding: 2rem 1.5rem; }
  .deck-grid { padding: 1rem; gap: 1rem; }
  .page-header { padding: 1.5rem 1rem 1rem; }
  .deck-filters { padding: 0.75rem 1rem; }
  .rules-content { padding: 1.5rem 1rem; }
  .game-card { width: 60px; height: 84px; }
  .game-card-placeholder { width: 60px; height: 84px; }
}

/* Portrait phone — show orientation prompt */
@media (max-width: 600px) and (orientation: portrait) {
  #orientation-overlay:not(.dismissed) { display: flex; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .features-grid { grid-template-columns: 1fr; }
  .modal-content { padding: 1.25rem; }
  .game-card { width: 50px; height: 70px; }
  .game-card-placeholder { width: 50px; height: 70px; font-size: 0.55rem; }
}