/* styles.css */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=Poppins:wght@400;500;600&display=swap');

:root {
    /* Light theme variables */
    --bg-color: #f5f7fa;
    --container-bg: #ffffff;
    --text-color: #333333;
    --title-color: #2c3e50;
    --card-bg: linear-gradient(135deg, #4caf50, #81c784);
    --card-text: #ffffff;
    --status-bg: #e3f2fd;
    --primary-btn: #2196f3;
    --primary-btn-hover: #1976d2;
    --secondary-btn: #78909c;
    --secondary-btn-hover: #546e7a;
    --accent-color: #ff9800;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --notification-bg: #e8f5e9;
    --notification-text: #2e7d32;
    --error-bg: #ffebee;
    --error-text: #c62828;
    --modal-bg: rgba(0, 0, 0, 0.5);
    --pile-bg: #e3f2fd;
}

.dark-theme {
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --title-color: #bbdefb;
    --card-bg: linear-gradient(135deg, #2e7d32, #388e3c);
    --card-text: #ffffff;
    --status-bg: #263238;
    --primary-btn: #1565c0;
    --primary-btn-hover: #0d47a1;
    --secondary-btn: #455a64;
    --secondary-btn-hover: #37474f;
    --accent-color: #ff9800;
    --border-color: #424242;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --notification-bg: #1b5e20;
    --notification-text: #a5d6a7;
    --error-bg: #b71c1c;
    --error-text: #ffcdd2;
    --modal-bg: rgba(0, 0, 0, 0.7);
    --pile-bg: #263238;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

html {
    background-color: var(--bg-color);
    font-family: 'Roboto', sans-serif;
    scroll-behavior: smooth;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-color);
}

.game-container {
    text-align: center;
    background: var(--container-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    max-width: 90%;
    width: 600px;
    margin: auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

h1 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--title-color);
    text-shadow: 1px 1px 2px var(--shadow-color);
    font-size: 1.8rem;
}

h2 {
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    color: var(--title-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.theme-toggle button {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    transition: background-color 0.3s;
}

.theme-toggle button:hover {
    background-color: var(--border-color);
    transform: none;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    background-color: var(--status-bg);
    color: var(--text-color);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-weight: 500;
}

.status-bar span {
    flex: 1;
    text-align: center;
}

.score-display {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    padding: 10px;
    background-color: var(--status-bg);
    border-radius: 8px;
}

.player-score {
    display: flex;
    align-items: center;
    gap: 5px;
}

.player-score span:last-child {
    font-weight: bold;
    color: var(--accent-color);
}

.game-area {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 15px;
    justify-items: center;
    width: 65%;
}

.pile-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 30%;
}

.draw-pile, .discard-pile {
    background: var(--pile-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.card-count {
    margin-top: 5px;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
}

.card {
    width: 100px;
    height: 140px;
    background: var(--card-bg);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: var(--card-text);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 8px var(--shadow-color);
    cursor: pointer;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.1));
    opacity: 0.3;
}

.card:hover, .card:focus {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--shadow-color);
}

.card.selected {
    border: 3px solid var(--accent-color);
    transform: translateY(-5px);
}

.card.face-up {
    background: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.card.face-up::before {
    display: none;
}

.card-suit {
    position: absolute;
    font-size: 16px;
}

.card-suit.top-left {
    top: 5px;
    left: 5px;
}

.card-suit.bottom-right {
    bottom: 5px;
    right: 5px;
    transform: rotate(180deg);
}

.action-buttons, .game-controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.action-btn, .control-btn {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.action-btn {
    background-color: var(--primary-btn);
    color: white;
}

.action-btn:hover, .action-btn:focus {
    background-color: var(--primary-btn-hover);
    transform: translateY(-2px);
}

.control-btn {
    background-color: var(--secondary-btn);
    color: white;
}

.control-btn:hover, .control-btn:focus {
    background-color: var(--secondary-btn-hover);
    transform: translateY(-2px);
}

.action-btn:active, .control-btn:active {
    transform: translateY(1px);
}

.notification {
    padding: 12px;
    border-radius: 8px;
    margin-top: 15px;
    background-color: var(--notification-bg);
    color: var(--notification-text);
    transition: opacity 0.3s, transform 0.3s;
}

.notification.error {
    background-color: var(--error-bg);
    color: var(--error-text);
}

.notification.hidden {
    opacity: 0;
    transform: translateY(-10px);
    position: absolute;
    pointer-events: none;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-bg);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--container-bg);
    padding: 25px;
    border-radius: 12px;
    max-width: 90%;
    width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close-button {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

.rules-content {
    text-align: left;
    margin-top: 20px;
}

.rules-content h3 {
    margin-top: 15px;
    margin-bottom: 10px;
    color: var(--title-color);
}

.rules-content ul {
    padding-left: 20px;
    margin-bottom: 15px;
}

.rules-content li {
    margin-bottom: 5px;
}

/* Responsive styles */
@media (max-width: 768px) {
    .game-container {
        padding: 15px;
        width: 100%;
    }

    h1 {
        font-size: 1.5rem;
    }

    .game-area {
        flex-direction: column;
    }

    .cards-container {
        width: 100%;
        margin-bottom: 20px;
    }

    .pile-container {
        width: 100%;
        flex-direction: row;
        justify-content: space-around;
    }

    .draw-pile, .discard-pile {
        width: 45%;
    }

    .card {
        width: 90px;
        height: 126px;
    }
}

@media (max-width: 480px) {
    .status-bar {
        flex-direction: column;
        gap: 5px;
    }

    .status-bar span {
        text-align: left;
    }

    .action-buttons, .game-controls {
        flex-direction: column;
    }

    .action-btn, .control-btn {
        width: 100%;
    }

    .card {
        width: 80px;
        height: 112px;
        font-size: 20px;
    }
}