/* Focus Flow - ADHD-Friendly Color Matching Game Styles */

/* CSS Variables for ADHD-friendly design */
:root {
    /* Primary color palette - calming blues and greens */
    --primary-color: #4A90E2;
    --primary-light: #6BA3E8;
    --primary-dark: #357ABD;
    
    /* Secondary colors - warm but not overwhelming */
    --secondary-color: #7ED321;
    --accent-color: #F5A623;
    --success-color: #50C878;
    --warning-color: #FF9500;
    --error-color: #FF6B6B;
    
    /* Neutral colors - high contrast but easy on eyes */
    --background: #F8F9FA;
    --surface: #FFFFFF;
    --surface-hover: #F0F2F5;
    --border: #E1E5E9;
    --text-primary: #2C3E50;
    --text-secondary: #5A6C7D;
    --text-muted: #8E9BAE;
    
    /* Game colors - carefully chosen for visibility and accessibility */
    --game-red: #E74C3C;
    --game-blue: #3498DB;
    --game-green: #2ECC71;
    --game-yellow: #F1C40F;
    --game-purple: #9B59B6;
    --game-orange: #E67E22;
    --game-pink: #E91E63;
    --game-cyan: #1ABC9C;
    
    /* Spacing and sizing - consistent and predictable */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Animations - reduced motion friendly */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Border radius */
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    
    /* Shadows - subtle and calming */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--font-size-base);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Accessibility - 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;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border: #000000;
        --text-primary: #000000;
        --background: #FFFFFF;
    }
}

/* Header */
.game-header {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    margin-bottom: var(--spacing-xl);
}

.game-title {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.game-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    font-weight: 400;
}

/* Main container */
.game-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Buttons - Clear, accessible design */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 48px; /* Accessibility - minimum touch target */
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #6BB91A;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Game Controls */
.game-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.control-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.settings-group {
    display: flex;
    gap: var(--spacing-md);
}

/* Game Statistics */
.game-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--primary-color);
}

/* Game Board */
.game-board {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.target-section {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.target-color {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--border);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.target-color:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.color-name {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-secondary);
}

.options-section {
    text-align: center;
}

.color-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-lg);
    max-width: 600px;
    margin: 0 auto;
}

.color-option {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid var(--border);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
}

.color-option:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.color-option:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 4px;
}

.color-option.correct {
    animation: correctPulse 0.6s ease-out;
    border-color: var(--success-color);
    box-shadow: 0 0 20px rgba(80, 200, 120, 0.4);
}

.color-option.incorrect {
    animation: incorrectShake 0.6s ease-out;
    border-color: var(--error-color);
}

/* Feedback Area */
.feedback-area {
    text-align: center;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-md);
}

.feedback-message {
    font-size: var(--font-size-xl);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.feedback-message.success {
    color: var(--success-color);
    animation: bounceIn 0.5s ease-out;
}

.feedback-message.error {
    color: var(--error-color);
    animation: shake 0.5s ease-out;
}

.encouragement-message {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-style: italic;
}

/* Progress Section */
.progress-section {
    text-align: center;
}

.progress-label {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background-color: var(--border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-slow);
    border-radius: 6px;
}

.progress-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--text-muted);
    transition: color var(--transition-fast);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
}

.close-btn:hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--border);
    text-align: right;
}

/* Settings */
.setting-group {
    margin-bottom: var(--spacing-lg);
}

.setting-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
}

.setting-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    background-color: var(--surface);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.setting-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

input[type="checkbox"] {
    margin-right: var(--spacing-sm);
    transform: scale(1.2);
}

/* Achievement Notification */
.achievement-notification {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-color), #FF9500);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    transition: transform var(--transition-slow);
    z-index: 1001;
    max-width: 300px;
}

.achievement-notification.show {
    transform: translateX(0);
}

.achievement-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.achievement-icon {
    font-size: var(--font-size-2xl);
}

.achievement-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.achievement-description {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Animations */
@keyframes correctPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Color-blind friendly mode */
.colorblind-mode .color-option::after {
    content: attr(data-color-name);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-container {
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-lg);
    }
    
    .game-header {
        padding: var(--spacing-lg) var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }
    
    .game-title {
        font-size: var(--font-size-2xl);
    }
    
    .game-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        justify-content: center;
    }
    
    .color-options {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: var(--spacing-md);
    }
    
    .color-option {
        width: 80px;
        height: 80px;
    }
    
    .target-color {
        width: 100px;
        height: 100px;
    }
    
    .achievement-notification {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        transform: translateY(-200px);
        max-width: none;
    }
    
    .achievement-notification.show {
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .game-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        margin: var(--spacing-md);
        width: auto;
    }
    
    .color-options {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Print styles */
@media print {
    .achievement-notification,
    .modal {
        display: none !important;
    }
}

/* Dark mode support (optional, can be added later) */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #1a1a1a;
        --surface: #2d2d2d;
        --surface-hover: #3a3a3a;
        --border: #404040;
        --text-primary: #ffffff;
        --text-secondary: #b0b0b0;
        --text-muted: #808080;
    }
}