/* ============================================================
   I-GAMES — Shared game design system
   A modern, glassy, "arcade" theme used by Chess, Checkers
   and Backgammon. Drop-in: add class "game-page" to <body>.
   ============================================================ */

:root {
  --bg-1: #0f0c29;
  --bg-2: #302b63;
  --bg-3: #24243e;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-border: rgba(255, 255, 255, 0.14);
  --ink: #f4f6ff;
  --ink-soft: #b9c0e0;
  --gold: #ffd166;
  --gold-deep: #f4a52b;
  --cyan: #38e1ff;
  --magenta: #ff5fa2;
  --green: #38e08a;
  --red: #ff5a6e;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 18px;
}

/* ---------- Page shell ---------- */
body.game-page {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, var(--bg-1), var(--bg-2), var(--bg-3));
  background-size: 220% 220%;
  animation: bgFlow 22s ease infinite;
  overflow-x: hidden;
}

@keyframes bgFlow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* floating glow blobs in the back */
body.game-page::before,
body.game-page::after {
  content: '';
  position: fixed;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}
body.game-page::before {
  background: var(--cyan);
  top: -160px;
  left: -120px;
  animation: float1 18s ease-in-out infinite;
}
body.game-page::after {
  background: var(--magenta);
  bottom: -180px;
  right: -120px;
  animation: float2 20s ease-in-out infinite;
}
@keyframes float1 { 50% { transform: translate(120px, 80px); } }
@keyframes float2 { 50% { transform: translate(-100px, -70px); } }

/* ---------- Sticky glass navbar (all game-page screens) ---------- */
body.game-page header.header-container {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 !important;        /* beat the .main-layout side-margin utility */
  padding: 12px clamp(16px, 4vw, 40px);
  align-items: center;
  background: rgba(15, 12, 41, 0.55);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}
body.game-page .text-logo {
  width: auto !important;
  margin: 0;
  font-family: 'Segoe UI', system-ui, sans-serif !important;
  font-size: 1.6rem !important;
  font-weight: 900 !important;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, var(--gold), var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
body.game-page .header-nav { width: auto; }
body.game-page .main-nav-list { width: auto; gap: 4px; margin: 0; padding: 0; align-items: center; }
body.game-page .main-nav-list a {
  font-family: 'Segoe UI', system-ui, sans-serif !important;
  font-size: 0.98rem !important;
  font-weight: 700;
  margin: 0;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--ink-soft) !important;
  transition: color 0.2s ease, background 0.2s ease;
}
body.game-page .main-nav-list a:hover {
  color: var(--ink) !important;
  background: rgba(255, 255, 255, 0.10);
}
body.game-page .toggle-menu {
  background: transparent;
  border: 1px solid var(--panel-border);
  color: var(--ink);
  border-radius: 10px;
  font-size: 1.3rem;
  padding: 4px 12px;
  cursor: pointer;
}

/* When a game page is embedded inside the landing-page modal (iframe),
   hide its own navbar and tighten the top spacing. */
html.embedded body.game-page header.header-container { display: none !important; }
html.embedded body.game-page .game-shell { padding-top: 14px; }
html.embedded body.game-page .home-hero,
html.embedded body.game-page .gallery-hero { padding-top: 18px; }

/* Center the page-content blocks (overrides the .main-layout side-margin utility) */
body.game-page.main-layout > *:not(.full):not(.header-container) {
  margin-inline-start: auto;
  margin-inline-end: auto;
}

/* ---------- Layout ---------- */
.game-shell {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: center;
  align-items: flex-start;
  padding: 24px 18px 60px;
  max-width: 1180px;
  margin: 0 auto;
}

.board-stage {
  display: flex;
  justify-content: center;
  align-items: center;
}

.board-frame {
  padding: 16px;
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02));
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,0.04);
  backdrop-filter: blur(6px);
}

/* ---------- Glass panel ---------- */
.glass {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.game-panel {
  width: 320px;
  max-width: 92vw;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.game-title {
  margin: 0;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, var(--gold), var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.game-subtitle {
  margin: -10px 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

/* ---------- Status banner ---------- */
.status-banner {
  padding: 14px 16px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.05rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(56,225,255,0.16), rgba(255,95,162,0.16));
  border: 1px solid var(--panel-border);
  transition: transform 0.2s ease;
}
.status-banner.pulse { animation: pulse 0.5s ease; }
@keyframes pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.06); }
  100% { transform: scale(1); }
}
.status-banner.danger {
  background: linear-gradient(135deg, rgba(255,90,110,0.30), rgba(255,95,162,0.20));
}

/* ---------- Segmented control & difficulty pills ---------- */
.control-group { display: flex; flex-direction: column; gap: 8px; }
.control-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--ink-soft);
  font-weight: 700;
}
.seg {
  display: flex;
  gap: 6px;
  padding: 5px;
  border-radius: 12px;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--panel-border);
}
.seg-btn {
  flex: 1;
  padding: 9px 6px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.seg-btn:hover { color: var(--ink); }
.seg-btn.active {
  color: #1a1730;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  box-shadow: 0 4px 14px rgba(255,209,102,0.35);
}

/* ---------- Buttons ---------- */
.panel-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.game-btn {
  flex: 1;
  min-width: 110px;
  padding: 12px 16px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: rgba(255,255,255,0.07);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.game-btn:hover { transform: translateY(-2px); background: rgba(255,255,255,0.14); }
.game-btn:active { transform: translateY(0); }
.game-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.game-btn--primary {
  border: none;
  color: #1a1730;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 8px 22px rgba(56,225,255,0.30);
}
.game-btn--primary:hover { box-shadow: 0 12px 28px rgba(56,225,255,0.45); }

/* ---------- Panel sections (move list, captures, dice tray) ---------- */
.panel-section {
  padding: 14px;
  border-radius: 14px;
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--panel-border);
}
.panel-section h3 {
  margin: 0 0 10px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--ink-soft);
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; min-height: 26px; font-size: 1.4rem; line-height: 1; }
.chip {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.10);
  border: 1px solid var(--panel-border);
  font-size: 0.85rem;
  font-weight: 700;
}

/* ---------- Win overlay + confetti ---------- */
.win-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8,6,24,0.72);
  backdrop-filter: blur(8px);
  opacity: 1;
  transition: opacity 0.3s ease;
}
.win-overlay.hidden { opacity: 0; pointer-events: none; }
.win-card {
  padding: 40px 48px;
  text-align: center;
  max-width: 90vw;
  transform: scale(1);
  animation: pop 0.45s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}
@keyframes pop { 0% { transform: scale(0.6); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.win-emoji { font-size: 4.5rem; line-height: 1; filter: drop-shadow(0 6px 18px rgba(0,0,0,0.5)); }
.win-title {
  margin: 10px 0 6px;
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--gold), var(--magenta));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.win-subtitle { margin: 0 0 22px; color: var(--ink-soft); font-size: 1rem; }

.confetti {
  position: fixed;
  top: -12px;
  width: 10px;
  height: 14px;
  z-index: 49;
  border-radius: 2px;
  pointer-events: none;
  animation: confettiFall linear forwards;
}
@keyframes confettiFall {
  to { transform: translateY(105vh) rotateZ(720deg); opacity: 0.9; }
}

/* ---------- Generic board cell helpers shared by games ---------- */
.board { display: grid; gap: 0; border-radius: 8px; overflow: hidden; }
.cell-dot {
  position: absolute;
  width: 26%;
  height: 26%;
  border-radius: 50%;
  background: rgba(56, 224, 138, 0.55);
  box-shadow: 0 0 12px rgba(56,224,138,0.7);
  pointer-events: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .game-shell { flex-direction: column-reverse; align-items: center; }
  .game-panel { width: 100%; max-width: 520px; }
}
