/* /public/css/connect4.css */

:root {
    --bg-color: #0f172a;       /* slate-900 */
    --card-bg: rgba(30, 41, 59, 0.7); /* slate-800 + blur */
    --text-primary: #f8fafc;   /* slate-50 */
    --text-secondary: #94a3b8; /* slate-400 */
    --accent-color: #0ea5e9;   /* sky-500 */
    
    /* UPDATED COLORS */
    --p1-color: #ef4444;       /* Red-500 */
    --p2-color: #3b82f6;       /* Blue-500 */
    
    --board-color: #1e3a8a;    /* blue-900 */
    --slot-empty: #0f172a;     /* slate-900 */
    --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.game-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

/* --- Status Card --- */
.status-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 1.5rem 3rem;
    text-align: center;
    box-shadow: var(--glass-shadow);
    width: 100%;
    max-width: 500px;
}

.status-text {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.025em;
}

.sub-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.5rem;
    font-family: monospace;
}

/* --- The Board --- */
.board-container {
    padding: 15px;
    background: rgba(30, 58, 138, 0.3);
    border-radius: 1.5rem;
}

.board {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    background: var(--board-color);
    padding: 15px;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.cell {
    width: 50px;
    height: 50px;
    background-color: var(--slot-empty);
    border-radius: 50%;

    border: 2px solid transparent; 
    box-sizing: border-box; 
    
    cursor: default;
    transition: background-color 0.2s, border-color 0.2s;
    box-shadow: inset 0 3px 6px rgba(0,0,0,0.6);
    position: relative;
    
    transform: none !important;
}

.cell.valid-move {
    cursor: pointer;
}
.cell.valid-move:hover {
    background-color: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.3);
}

/* Player Chips */
.cell.p1 { 
    background-color: var(--p1-color); 
    box-shadow: inset 0 -4px 4px rgba(0,0,0,0.2);
    border-color: transparent;
}
.cell.p2 { 
    background-color: var(--p2-color); 
    box-shadow: inset 0 -4px 4px rgba(0,0,0,0.2);
    border-color: transparent;
}

/* Winner Animation */
.cell.winner {
    animation: pulse-win 1.5s infinite;
    border: 3px solid #fff;
}

@keyframes pulse-win {
    0% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(255, 255, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

/* --- Buttons --- */
.btn-glass {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-restart {
    background: linear-gradient(135deg, #10b981, #059669); /* Green */
    color: white;
    font-weight: bold;
    border: none;
    margin-top: 10px;
    display: none;
}
.btn-restart:hover {
    background: linear-gradient(135deg, #34d399, #10b981);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* Mobile */
@media (max-width: 600px) {
    .game-wrapper { padding: 1rem; }
    .cell { width: 38px; height: 38px; }
}