/**
 * Checkers - Style Sheet
 * Rich wood-grain theme for classic American Checkers
 */

/* ==================== BASE ==================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; background: #2a1a0a; }

.lg-game-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3a2a1a 0%, #2a1a0a 100%);
}

#game-canvas {
    display: block;
    cursor: pointer;
    border-radius: 0;
    box-shadow: none;
}

/* ==================== MENU OVERLAY ==================== */
.ck-menu {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(90,60,30,0.97), rgba(50,30,15,0.98));
    z-index: 100;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    text-align: center;
}

.ck-menu h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: #f0d9b5;
    text-shadow: 0 3px 10px rgba(0,0,0,0.5), 0 0 40px rgba(240,217,181,0.3);
    margin-bottom: 8px;
    letter-spacing: 3px;
}

.ck-menu .ck-subtitle {
    font-size: 1.1rem;
    color: #c4a77d;
    margin-bottom: 30px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.ck-section-label {
    color: #c4a77d;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.ck-diff-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    justify-content: center;
}

.ck-diff-btn {
    padding: 10px 22px;
    border: 2px solid rgba(240,217,181,0.3);
    border-radius: 8px;
    background: rgba(240,217,181,0.1);
    color: #f0d9b5;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
}

.ck-diff-btn:hover {
    background: rgba(240,217,181,0.2);
    border-color: rgba(240,217,181,0.5);
}

.ck-diff-btn.selected {
    background: rgba(204,51,51,0.5);
    border-color: #cc3333;
    color: #fff;
    box-shadow: 0 0 15px rgba(204,51,51,0.3);
}

.ck-btn {
    padding: 14px 40px;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.2s;
    text-transform: uppercase;
}

.ck-btn-play {
    background: linear-gradient(135deg, #cc3333, #aa2222);
    color: #fff;
    box-shadow: 0 4px 20px rgba(204,51,51,0.4);
}

.ck-btn-play:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(204,51,51,0.6);
}

/* ==================== HUD ==================== */
.ck-hud {
    position: absolute;
    top: 0; left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: linear-gradient(180deg, rgba(30,15,5,0.9) 0%, rgba(30,15,5,0) 100%);
    z-index: 50;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    pointer-events: none;
}

.ck-hud-left, .ck-hud-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.ck-hud-left { color: #ff6666; }
.ck-hud-right { color: #aaaaaa; }

.ck-hud-center {
    font-size: 1rem;
    font-weight: 700;
    color: #f0d9b5;
    text-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.ck-turn-player { color: #ff6666; }
.ck-turn-ai { color: #aaaaaa; }

.ck-piece-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
}

.ck-piece-red { background: #cc3333; }
.ck-piece-black { background: #333333; }

/* ==================== BOTTOM BAR ==================== */
.ck-bottom-bar {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: linear-gradient(0deg, rgba(30,15,5,0.9) 0%, rgba(30,15,5,0) 100%);
    z-index: 50;
    font-family: 'Segoe UI', Tahoma, sans-serif;
}

.ck-btn-sm {
    padding: 6px 16px;
    border: 1px solid rgba(240,217,181,0.3);
    border-radius: 6px;
    background: rgba(240,217,181,0.1);
    color: #f0d9b5;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    pointer-events: all;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ck-btn-sm:hover {
    background: rgba(240,217,181,0.25);
    border-color: rgba(240,217,181,0.5);
}

.ck-diff-label {
    color: #c4a77d;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    pointer-events: none;
}

/* ==================== GAME OVER OVERLAY ==================== */
.ck-gameover {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(20,10,5,0.92);
    z-index: 200;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    text-align: center;
}

.ck-gameover h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 3px 10px rgba(0,0,0,0.5);
}

.ck-gameover .ck-win { color: #ffcc00; }
.ck-gameover .ck-lose { color: #cc3333; }
.ck-gameover .ck-draw { color: #c4a77d; }

.ck-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.ck-stat-item {
    background: rgba(240,217,181,0.08);
    border-radius: 8px;
    padding: 10px 18px;
}

.ck-stat-item .value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #f0d9b5;
}

.ck-stat-item .label {
    font-size: 0.75rem;
    color: #c4a77d;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ck-gameover-btns {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 600px) {
    .ck-menu h1 { font-size: 2.2rem; }
    .ck-diff-btn { padding: 8px 14px; font-size: 0.85rem; }
    .ck-btn { padding: 12px 28px; font-size: 1rem; }
    .ck-hud { padding: 6px 10px; }
    .ck-hud-center { font-size: 0.85rem; }
    .ck-bottom-bar { padding: 6px 10px; gap: 8px; }
}