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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #4b6cb7 0%, #182848 100%);
    height: 100vh;
    margin: 0;
    padding: 0;
    overflow: hidden;
    color: #fff;
}

.container {
    height: 100vh;
    display: grid;
    grid-template-rows: auto auto 1fr;
    overflow: hidden;
}

.game-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 1.2em;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.game-message.fade-out {
    animation: fadeOut 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translate(-50%, -20px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translate(-50%, 0); }
    to { opacity: 0; transform: translate(-50%, 20px); }
}

.start-screen {
    text-align: center;
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
}

.setup {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.setup input,
.setup select {
    font-size: 1.2em;
    padding: 0.8rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    background: rgba(255,255,255,0.1);
    color: white;
    width: 150px;
    margin: 0 auto;
    text-align: center;
    backdrop-filter: blur(5px);
    appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.setup input:hover,
.setup select:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.3);
}

.setup select option {
    background: #182848;
    color: white;
}

.players-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1rem 0;
}

.player-score {
    padding: 10px 20px;
    margin: 5px;
    border-radius: 10px;
    transition: all 0.3s ease;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.player-score.active {
    background: #4CAF50;
    color: white;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    transform: scale(1.05);
    border-color: #45a049;
}

.player-score:not(.active) {
    opacity: 0.8;
}

.stats {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.player-score {
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    background: rgba(255,255,255,0.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    margin: 0 8px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
}

.player-score:hover {
    transform: translateY(-3px);
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.3);
}

.player-score.active {
    background: linear-gradient(145deg, #2ecc71, #27ae60);
    color: white;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.4);
    border-color: rgba(255,255,255,0.4);
}



h1 {
    color: #fff;
    margin: 15px;
    font-size: 2em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-weight: 600;
    letter-spacing: 1px;
}

.stats {
    font-size: 1.2em;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    margin: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.stats span {
    margin: 0 10px;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 12px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    margin: 15px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    overflow-y: auto;
    align-content: start;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.card {
    aspect-ratio: 2/3;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    font-size: min(4vw, 2em);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    position: relative;
    background: none;
    margin: auto;
}

.card .back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    background: linear-gradient(135deg, #e83e8c, #6f42c1);
    border: 2px solid white;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
    background-image: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255,255,255,0.1) 10px,
        rgba(255,255,255,0.1) 20px
    );
}

.card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.3);
}

.card .content {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    background: white;
    color: black;
    transform: rotateY(180deg);
    backface-visibility: hidden;
    border: 2px solid #ddd;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.1);
}

.card[data-type='colors'] .content {
    background: var(--card-color);
}

.card.flipped {
    transform: rotateY(180deg);
}

button {
    padding: 12px 24px;
    font-size: 1.1em;
    background: linear-gradient(145deg, #5c6bc0, #3949ab);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

button:hover {
    transform: translateY(-2px);
    background: linear-gradient(145deg, #3949ab, #283593);
    border-color: rgba(255,255,255,0.3);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

button:hover {
    background-color: #3f51b5;
}