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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.status {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

#current-player {
    font-weight: bold;
    color: #4ecdc4;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 1.5rem;
}

.cell {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cell:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.cell.x {
    color: #4ecdc4;
}

.cell.o {
    color: #ff6b6b;
}

.result {
    color: #fff;
    font-size: 1.1rem;
    min-height: 1.5rem;
    margin-bottom: 1rem;
}

.reset-btn {
    padding: 12px 30px;
    font-size: 1rem;
    background: #4ecdc4;
    color: #1a1a2e;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.reset-btn:hover {
    background: #45b7aa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.4);
}

.reset-btn:active {
    transform: translateY(0);
}