/* SoundMaze - Accessible Audio Game Styles */

/* CSS Custom Properties for theming */
:root {
    --primary-color: #4A90E2;
    --secondary-color: #F39C12;
    --success-color: #27AE60;
    --warning-color: #E74C3C;
    --background-color: #2C3E50;
    --surface-color: #34495E;
    --text-color: #ECF0F1;
    --text-muted: #BDC3C7;
    --border-color: #7F8C8D;
    --focus-color: #3498DB;
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-small: 0.875rem;
    --font-size-normal: 1rem;
    --font-size-large: 1.25rem;
    --font-size-xlarge: 1.5rem;
    --font-size-xxlarge: 2rem;
    
    --border-radius: 8px;
    --border-radius-large: 12px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-normal);
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, var(--background-color) 0%, #1a252f 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Accessibility Focus Styles */
*:focus {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
    border-radius: var(--border-radius);
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* Screen Reader Only Content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Main App Container */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Screen Management */
.screen {
    display: none;
    flex-direction: column;
    min-height: 100vh;
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.screen.active {
    display: flex;
}

/* Main Menu Styles */
#main-menu {
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xxl);
}

#game-title {
    font-size: var(--font-size-xxlarge);
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: var(--spacing-sm);
    animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    from { text-shadow: 0 2px 4px var(--shadow-color); }
    to { text-shadow: 0 2px 20px var(--primary-color), 0 0 30px var(--primary-color); }
}

#game-subtitle {
    font-size: var(--font-size-large);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
}

/* Navigation Menu */
nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 400px;
}

.menu-button {
    background: var(--surface-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-large);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.menu-button:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.menu-button:active {
    transform: translateY(0);
}

.menu-button.primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.menu-button.primary:hover {
    background: #357ABD;
    border-color: #357ABD;
}

/* Game Screen Styles */
#game-screen {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px var(--shadow-color);
}

#level-title {
    font-size: var(--font-size-large);
    color: var(--primary-color);
}

.game-info {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--font-size-small);
    color: var(--text-muted);
}

/* Game Container */
#game-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--surface-color);
    border-radius: var(--border-radius-large);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 16px var(--shadow-color);
    min-height: 600px;
}

#maze-canvas {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: #1a252f;
    cursor: crosshair;
    transition: border-color var(--transition-normal);
}

#maze-canvas:focus {
    border-color: var(--focus-color);
}

/* Audio Controls */
.audio-panel {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    background: rgba(52, 73, 94, 0.9);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.audio-button {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-small);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-button:hover {
    background: #357ABD;
    transform: scale(1.05);
}

/* Game Controls */
.controls-panel {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.control-button {
    background: var(--surface-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-normal);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.control-button:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Instructions Screen */
#instructions-screen {
    max-width: 800px;
    gap: var(--spacing-lg);
}

.instructions-content {
    background: var(--surface-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.instructions-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-large);
}

.instructions-content ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.instructions-content li {
    margin-bottom: var(--spacing-sm);
}

/* Settings Screen */
#settings-screen {
    max-width: 600px;
    gap: var(--spacing-lg);
}

.settings-content {
    background: var(--surface-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px var(--shadow-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.setting-group label {
    font-weight: 600;
    color: var(--text-color);
}

.setting-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.setting-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

.setting-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
}

.setting-group select {
    background: var(--background-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    font-size: var(--font-size-normal);
}

.setting-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.settings-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* About Screen */
#about-screen {
    max-width: 800px;
    gap: var(--spacing-lg);
}

.about-content {
    background: var(--surface-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.about-content h3 {
    color: var(--primary-color);
    margin: var(--spacing-lg) 0 var(--spacing-md) 0;
    font-size: var(--font-size-large);
}

.about-content ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.about-content li {
    margin-bottom: var(--spacing-sm);
}

/* Overlay Styles */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.overlay.active {
    display: flex;
}

.overlay-content {
    background: var(--surface-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-large);
    box-shadow: 0 8px 32px var(--shadow-color);
    text-align: center;
    max-width: 500px;
    width: 90%;
}

.overlay-content h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xlarge);
}

.overlay-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-muted);
}

.overlay-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Loading Screen */
#loading-screen {
    justify-content: center;
    align-items: center;
    text-align: center;
}

.loading-content {
    background: var(--surface-color);
    padding: var(--spacing-xxl);
    border-radius: var(--border-radius-large);
    box-shadow: 0 8px 32px var(--shadow-color);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: var(--spacing-lg) auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Close Button */
.close-button {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--warning-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: var(--font-size-large);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-button:hover {
    background: #C0392B;
    transform: scale(1.1);
}

/* Header with close button */
header {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .screen {
        padding: var(--spacing-md);
    }
    
    #game-title {
        font-size: var(--font-size-xlarge);
    }
    
    #game-subtitle {
        font-size: var(--font-size-normal);
    }
    
    .menu-button {
        font-size: var(--font-size-normal);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .game-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .game-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    #game-container {
        padding: var(--spacing-sm);
    }
    
    #maze-canvas {
        width: 100%;
        height: auto;
        max-width: 600px;
    }
    
    .audio-panel {
        position: static;
        justify-content: center;
        margin-top: var(--spacing-md);
    }
    
    .controls-panel {
        flex-wrap: wrap;
    }
    
    .overlay-actions {
        flex-direction: column;
    }
    
    .settings-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-large: 1.125rem;
        --font-size-xlarge: 1.25rem;
        --font-size-xxlarge: 1.5rem;
    }
    
    .screen {
        padding: var(--spacing-sm);
    }
    
    nav {
        max-width: 100%;
    }
    
    .overlay-content {
        padding: var(--spacing-lg);
        margin: var(--spacing-md);
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0066CC;
        --secondary-color: #FF6600;
        --background-color: #000000;
        --surface-color: #1A1A1A;
        --text-color: #FFFFFF;
        --border-color: #FFFFFF;
    }
    
    .menu-button {
        border-width: 3px;
    }
    
    .control-button {
        border-width: 3px;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-spinner {
        animation: none;
    }
    
    .titleGlow {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .screen:not(.active) {
        display: none !important;
    }
    
    #game-container,
    .audio-panel,
    .controls-panel {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}