/* ===== カピバラゲームセンター スタイル ===== */

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

:root {
  --gc-bg: #0e0e16;
  --gc-card: #16162a;
  --gc-border: rgba(255,255,255,0.1);
  --gc-text: #f0f0f0;
  --gc-muted: rgba(255,255,255,0.5);
  --gc-accent: #6c63ff;
  --gc-green: #43d9ad;
  --gc-pink: #ff6584;
  --gc-orange: #ffb347;
  --gc-radius: 16px;
  --gc-radius-sm: 10px;
}

body {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  background: var(--gc-bg);
  color: var(--gc-text);
  min-height: 100vh;
}

/* ===== Nav ===== */
.gc-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14,14,22,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gc-border);
  padding: 0 20px;
}
.gc-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.gc-nav-logo {
  text-decoration: none;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
}
.gc-nav-links { display: flex; gap: 8px; align-items: center; }
.gc-nav-link {
  text-decoration: none;
  color: var(--gc-muted);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.gc-nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.gc-nav-link.highlight {
  background: var(--gc-accent);
  color: #fff;
}
.gc-nav-link.highlight:hover { background: #5550dd; }

/* ===== Hero ===== */
.gc-hero {
  position: relative;
  padding: 60px 20px 48px;
  text-align: center;
  overflow: hidden;
}
.gc-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.gc-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
}
.gc-orb-1 {
  width: 400px; height: 400px;
  background: var(--gc-accent);
  top: -100px; left: -100px;
}
.gc-orb-2 {
  width: 300px; height: 300px;
  background: var(--gc-green);
  bottom: -80px; right: -80px;
}
.gc-hero-content { position: relative; z-index: 1; }
.gc-hero-icon { font-size: 56px; margin-bottom: 12px; }
.gc-hero-title {
  font-size: clamp(24px, 5vw, 42px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.gc-hero-sub {
  font-size: 15px;
  color: var(--gc-muted);
}

/* ===== Main / Hub ===== */
.gc-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
.gc-hub {}
.gc-play { padding-top: 20px; }

/* ===== Filters ===== */
.gc-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding-top: 4px;
}
.gc-filter {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--gc-border);
  color: var(--gc-muted);
  padding: 7px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.gc-filter:hover { color: #fff; border-color: rgba(255,255,255,0.3); }
.gc-filter.active {
  background: var(--gc-accent);
  border-color: var(--gc-accent);
  color: #fff;
}

/* ===== Game Grid ===== */
.gc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

/* ===== Game Card ===== */
.gc-card {
  background: var(--gc-card);
  border: 1px solid var(--gc-border);
  border-radius: var(--gc-radius);
  padding: 20px;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
  user-select: none;
}
.gc-card:hover {
  transform: translateY(-4px);
  border-color: var(--gc-accent);
  box-shadow: 0 8px 32px rgba(108,99,255,0.3);
}
.gc-card.featured {
  border-color: rgba(108,99,255,0.4);
  background: linear-gradient(135deg, rgba(108,99,255,0.12), rgba(14,14,22,1));
}
.gc-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, var(--gc-accent), #ff6584);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.05em;
}
.gc-card-icon { font-size: 36px; margin-bottom: 10px; }
.gc-card-name {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 5px;
  line-height: 1.3;
}
.gc-card-desc {
  font-size: 12px;
  color: var(--gc-muted);
  line-height: 1.5;
  margin-bottom: 10px;
}
.gc-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.gc-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
}
.gc-tag.blue { background: rgba(59,123,255,0.2); color: #6ea8fe; }
.gc-tag.green { background: rgba(67,217,173,0.2); color: var(--gc-green); }
.gc-tag.pink { background: rgba(255,101,132,0.2); color: var(--gc-pink); }
.gc-tag.orange { background: rgba(255,179,71,0.2); color: var(--gc-orange); }
.gc-tag.purple { background: rgba(108,99,255,0.2); color: #a89cff; }

/* ===== Back Button ===== */
.gc-back-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--gc-border);
  color: var(--gc-text);
  padding: 9px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  transition: background 0.2s;
}
.gc-back-btn:hover { background: rgba(255,255,255,0.14); }

/* ===== Game Container (共通) ===== */
.gc-game-wrap {
  max-width: 700px;
  margin: 0 auto;
}
.gc-game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  background: var(--gc-card);
  border: 1px solid var(--gc-border);
  border-radius: var(--gc-radius);
  padding: 14px 20px;
}
.gc-game-title {
  font-size: 18px;
  font-weight: 800;
}
.gc-game-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.gc-stat { text-align: center; }
.gc-stat-val {
  font-size: 20px;
  font-weight: 900;
  color: var(--gc-accent);
}
.gc-stat-lbl {
  font-size: 10px;
  color: var(--gc-muted);
  text-transform: uppercase;
}
.gc-game-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.gc-btn {
  border: none;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s, opacity 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.gc-btn:hover { transform: translateY(-1px); }
.gc-btn-primary { background: var(--gc-accent); color: #fff; }
.gc-btn-primary:hover { background: #5550dd; }
.gc-btn-secondary { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid var(--gc-border); }
.gc-btn-success { background: var(--gc-green); color: #000; }
.gc-btn-danger { background: var(--gc-pink); color: #fff; }

/* ===== Canvas ===== */
.gc-canvas {
  display: block;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  border-radius: var(--gc-radius-sm);
  border: 1px solid var(--gc-border);
  background: #1a2a1a;
  cursor: pointer;
}

/* ===== Solitaire ===== */
.gc-sol-board {
  background: linear-gradient(135deg, #1a4a2e, #0d2b1a);
  border-radius: var(--gc-radius);
  padding: 12px;
  min-height: 480px;
  user-select: none;
  touch-action: none;
  overflow-x: auto;
}
.gc-sol-card {
  width: 60px;
  min-height: 80px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 3px 4px;
  background: #fff;
}
.gc-sol-card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.5); }
.gc-sol-card.selected { box-shadow: 0 0 0 3px #6c63ff, 0 6px 16px rgba(0,0,0,0.5); transform: translateY(-3px); }
.gc-sol-card.back {
  background: linear-gradient(135deg, #6c63ff, #3b7bff);
  color: transparent;
}
.gc-sol-card.red { color: #e74c3c; }
.gc-sol-card.black { color: #1a1a2e; }
.gc-sol-empty {
  width: 60px;
  min-height: 80px;
  border-radius: 6px;
  border: 2px dashed rgba(255,255,255,0.2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 20px;
  cursor: pointer;
}

/* ===== Othello ===== */
.gc-othello-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  background: #1a6b2a;
  border: 3px solid #145020;
  border-radius: 8px;
  padding: 6px;
  max-width: 400px;
  margin: 0 auto;
}
.gc-othello-cell {
  aspect-ratio: 1;
  background: #228b22;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  position: relative;
}
.gc-othello-cell:hover { background: #2aaa2a; }
.gc-othello-cell.hint { background: rgba(255,255,255,0.2); }
.gc-othello-piece {
  width: 80%;
  height: 80%;
  border-radius: 50%;
  transition: all 0.2s;
}
.gc-othello-piece.black { background: radial-gradient(circle at 35% 35%, #555, #000); }
.gc-othello-piece.white { background: radial-gradient(circle at 35% 35%, #fff, #ccc); border: 1px solid #aaa; }

/* ===== VS Games ===== */
.vs-arena {
  background: var(--gc-card);
  border: 1px solid var(--gc-border);
  border-radius: var(--gc-radius);
  padding: 24px;
  max-width: 700px;
  margin: 0 auto;
}
.vs-players {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
}
.vs-player {
  flex: 1;
  text-align: center;
  padding: 16px;
  border-radius: 12px;
  border: 2px solid var(--gc-border);
  transition: border-color 0.3s, background 0.3s;
}
.vs-player.active {
  border-color: var(--gc-accent);
  background: rgba(108,99,255,0.1);
}
.vs-player-icon { font-size: 28px; margin-bottom: 4px; }
.vs-player-name { font-size: 14px; font-weight: 700; }
.vs-player-score { font-size: 28px; font-weight: 900; color: var(--gc-accent); }
.vs-vs {
  font-size: 20px;
  font-weight: 900;
  color: var(--gc-pink);
  text-align: center;
  padding: 8px;
}
.vs-status {
  text-align: center;
  font-size: 13px;
  color: var(--gc-muted);
  margin-bottom: 16px;
  padding: 8px;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
}

/* ===== Leaderboard ===== */
.gc-lb {
  background: var(--gc-card);
  border: 1px solid var(--gc-border);
  border-radius: var(--gc-radius);
  padding: 20px;
  margin-top: 20px;
}
.gc-lb-title { font-size: 15px; font-weight: 800; margin-bottom: 12px; }
.gc-lb-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.gc-lb-row:last-child { border-bottom: none; }
.gc-lb-rank {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 800; flex-shrink: 0;
}
.gc-lb-rank.gold { background: rgba(255,215,0,0.2); color: gold; }
.gc-lb-rank.silver { background: rgba(192,192,192,0.2); color: silver; }
.gc-lb-rank.bronze { background: rgba(205,127,50,0.2); color: #cd7f32; }
.gc-lb-rank.normal { background: rgba(255,255,255,0.1); color: var(--gc-muted); }
.gc-lb-name { flex: 1; font-size: 14px; font-weight: 700; }
.gc-lb-score { font-size: 18px; font-weight: 900; color: var(--gc-accent); }

/* ===== Toast ===== */
.gc-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(30,30,50,0.95);
  color: #fff;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  z-index: 9999;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  border: 1px solid var(--gc-border);
}
.gc-toast.success { background: rgba(67,217,173,0.9); color: #000; }
.gc-toast.error { background: rgba(255,101,132,0.9); }

/* ===== Footer ===== */
.gc-footer {
  background: rgba(0,0,0,0.4);
  border-top: 1px solid var(--gc-border);
  text-align: center;
  padding: 24px;
  font-size: 13px;
  color: var(--gc-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.gc-footer a {
  color: var(--gc-accent);
  text-decoration: none;
}
.gc-footer a:hover { text-decoration: underline; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .gc-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
  .gc-card { padding: 16px; }
  .gc-card-icon { font-size: 28px; }
  .gc-othello-board { max-width: 300px; }
}