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

:root {
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --container-bg: #ffffff;
    --text-primary: #333;
    --text-secondary: #555;
    --text-tertiary: #666;
    --accent-color: #667eea;
    --accent-hover: #764ba2;
    --canvas-border: #333;
    --canvas-bg-start: #87ceeb;
    --canvas-bg-end: #e0f6ff;
    --pin-color: #e74c3c;
    --bucket-color: #27ae60;
    --cannon-color: #2c3e50;
}

body.dark-mode {
    --bg-gradient-start: #1a1a2e;
    --bg-gradient-end: #16213e;
    --container-bg: #0f3460;
    --text-primary: #e8e8e8;
    --text-secondary: #b8b8b8;
    --text-tertiary: #a0a0a0;
    --accent-color: #5c7cfa;
    --accent-hover: #4c6ef5;
    --canvas-border: #94a3b8;
    --canvas-bg-start: #1e3a5f;
    --canvas-bg-end: #2d5a7b;
    --pin-color: #ff6b6b;
    --bucket-color: #51cf66;
    --cannon-color: #cbd5e1;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    margin: 0;
    transition: background 0.3s ease;
}

@media (max-width: 600px) {
    body {
        padding: 0;
    }
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    background: var(--container-bg);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    max-width: 100%;
    transition: background 0.3s ease;
}

@media (max-width: 600px) {
    .game-container {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
        padding: 10px;
        gap: 10px;
        justify-content: space-between;
    }
}

.ui-top {
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: center;
    width: 100%;
    position: relative;
}

.score-display,
.level-display,
.balls-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.label {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: bold;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.value {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

.lang-toggle,
.dark-mode-toggle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-toggle {
    right: 0;
}

.dark-mode-toggle {
    left: 0;
}

.lang-toggle:hover,
.dark-mode-toggle:hover {
    background: var(--accent-color);
    transform: translateY(-50%) scale(1.1);
}

.lang-toggle:active,
.dark-mode-toggle:active {
    transform: translateY(-50%) scale(0.95);
}

#gameCanvas {
    display: block;
    border: 3px solid var(--canvas-border);
    background: linear-gradient(to bottom, var(--canvas-bg-start), var(--canvas-bg-end));
    border-radius: 5px;
    cursor: none;
    touch-action: none;
    transition: border-color 0.3s ease, background 0.3s ease;
}

@media (min-width: 601px) {
    #gameCanvas {
        width: 800px;
        height: 600px;
    }
}

@media (max-width: 600px) {
    #gameCanvas {
        width: 100%;
        flex: 1;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}

.ui-bottom {
    width: 100%;
    text-align: center;
}

.controls {
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    transition: color 0.3s ease;
}

.mobile-controls {
    display: none;
    gap: 14px;
    justify-content: center;
    align-items: center;
    margin: 10px 0 4px;
}

.mobile-btn {
    min-width: 72px;
    padding: 14px 18px;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
    cursor: pointer;
    touch-action: manipulation;
    transition: transform 0.08s ease, filter 0.2s ease;
}

.mobile-btn:active {
    transform: translateY(1px) scale(0.99);
    filter: brightness(0.96);
}

.mobile-fire {
    min-width: 96px;
    background: linear-gradient(135deg, #f39c12, #e67e22);
}

.info {
    min-height: 30px;
    font-size: 16px;
    font-weight: bold;
    color: var(--accent-hover);
    margin-top: 10px;
    transition: transform 0.2s ease, color 0.3s ease;
}

.info.game-over {
    color: #b3001b;
    background: #ffe8e6;
    border: 2px solid #ffb3b3;
    padding: 10px 14px;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 6px 18px rgba(179, 0, 27, 0.18);
    animation: pulse-alert 0.9s ease-in-out infinite;
}

.info.level-complete {
    color: #0f7a3b;
    background: #e7f8ee;
    border: 2px solid #b5ebc9;
    padding: 10px 14px;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 6px 18px rgba(15, 122, 59, 0.16);
}

@keyframes pulse-alert {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}

#resetBtn {
    padding: 10px 25px;
    font-size: 14px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
    margin-top: 10px;
}

#resetBtn:hover {
    background-color: var(--accent-hover);
}

#resetBtn:active {
    transform: scale(0.98);
}

.dedication {
    margin-top: 20px;
    padding: 10px;
    font-size: 14px;
    color: var(--accent-hover);
    font-style: italic;
    text-align: center;
    opacity: 0.8;
    transition: color 0.3s ease;
}

@media (max-width: 600px) {
    .ui-top {
        gap: 15px;
        padding: 0 5px;
    }

    .value {
        font-size: 20px;
    }

    .label {
        font-size: 10px;
    }

    .controls {
        font-size: 11px;
        margin-bottom: 8px;
    }

    .controls p {
        margin: 2px 0;
    }

    .mobile-controls {
        display: flex;
    }

    .lang-toggle,
    .dark-mode-toggle {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .dedication {
        margin-top: 8px;
        padding: 5px;
        font-size: 12px;
    }

    #resetBtn {
        padding: 8px 16px;
        font-size: 12px;
        margin-top: 6px;
    }

    .mobile-btn {
        min-width: 60px;
        padding: 12px 14px;
        font-size: 14px;
    }

    .mobile-fire {
        min-width: 80px;
    }
}