/**
 * ============================================================================
 * Eco Choices - Game Styles
 * ============================================================================
 * Professional styling with environmental theme
 * Includes animations, responsive design, and accessibility
 * ============================================================================
 */

/* ========================================================================
   CSS VARIABLES & THEME
   ======================================================================== */
:root {
    /* Theme Colors - Environmental Palette */
    --eco-primary: #16a085;
    --eco-secondary: #1abc9c;
    --eco-accent: #27ae60;
    --eco-success: #27ae60;
    --eco-warning: #f39c12;
    --eco-danger: #e74c3c;
    --eco-info: #3498db;

    /* Neutral Colors */
    --color-bg: #f8f9fa;
    --color-bg-dark: #ecf0f1;
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-white: #ffffff;
    --color-shadow: rgba(0, 0, 0, 0.1);

    /* Planet Health Colors */
    --health-critical: #e74c3c;
    --health-danger: #e67e22;
    --health-warning: #f39c12;
    --health-good: #27ae60;
    --health-excellent: #16a085;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

/* ========================================================================
   GLOBAL STYLES
   ======================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--eco-secondary) 0%, var(--eco-primary) 100%);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

/* ========================================================================
   SCREEN MANAGEMENT
   ======================================================================== */
.screen {
    display: none;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    animation: fadeIn var(--transition-normal);
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================================================
   LEARNATURE BRANDING
   ======================================================================== */
.learnature-branding {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(22, 160, 133, 0.1), rgba(26, 188, 156, 0.1));
    border-radius: var(--radius-md);
}

.brand-logo {
    display: block;
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--eco-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 1px;
}

.brand-tagline {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ========================================================================
   WELCOME SCREEN
   ======================================================================== */
.game-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.game-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.game-title {
    font-size: 3rem;
    color: var(--eco-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: bold;
}

.game-description {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

/* Difficulty Selection */
.difficulty-selection {
    margin-bottom: var(--spacing-xl);
}

.difficulty-selection h2 {
    text-align: center;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.difficulty-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.difficulty-card {
    background: var(--color-bg);
    border: 3px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.difficulty-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--eco-secondary);
}

.difficulty-card.selected {
    background: var(--eco-primary);
    color: var(--color-white);
    border-color: var(--eco-accent);
    transform: scale(1.05);
}

.difficulty-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.difficulty-name {
    font-size: 1.5rem;
    font-weight: bold;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.difficulty-badge {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    background: var(--eco-accent);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.difficulty-card.selected .difficulty-badge {
    background: var(--color-white);
    color: var(--eco-primary);
}

.difficulty-info {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.difficulty-card.selected .difficulty-info {
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================================================
   BUTTONS
   ======================================================================== */
.btn-primary,
.btn-secondary,
.btn-link {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    justify-content: center;
}

.btn-primary {
    background: var(--eco-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background: var(--eco-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--eco-primary);
}

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

.btn-link {
    background: transparent;
    color: var(--eco-primary);
    padding: 0.5rem 1rem;
    text-decoration: underline;
}

.btn-link:hover {
    color: var(--eco-accent);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.5rem;
    margin: var(--spacing-lg) auto;
    display: block;
}

#start-game-btn,
#replay-btn,
#change-difficulty-btn {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: var(--spacing-md) auto;
}

/* ========================================================================
   GAME SCREEN
   ======================================================================== */
#game-screen {
    max-width: 1000px;
}

/* Top Bar */
.game-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.game-stats {
    display: flex;
    gap: var(--spacing-lg);
    flex: 1;
    justify-content: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--eco-primary);
}

.icon-btn {
    background: var(--color-white);
    border: 2px solid var(--eco-primary);
    border-radius: var(--radius-md);
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover:not(:disabled) {
    background: var(--eco-primary);
    transform: scale(1.1);
}

.icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Planet Health Bar */
.planet-health-container {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.planet-health-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.planet-health-icon {
    font-size: 2rem;
}

.planet-health-label {
    font-size: 1.125rem;
    font-weight: 600;
}

.planet-health-bar {
    height: 30px;
    background: var(--color-bg-dark);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.planet-health-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--eco-accent), var(--eco-primary));
    border-radius: var(--radius-full);
    transition: width var(--transition-normal), background-color var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.planet-health-fill.animate {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.1); }
}

/* Scenario Card */
#game-area {
    min-height: 400px;
}

.scenario-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.scenario-image-container {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--color-bg);
    display: none; /* Hidden until we have images */
}

.scenario-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scenario-content {
    padding: var(--spacing-lg);
}

.scenario-title {
    font-size: 2rem;
    color: var(--eco-primary);
    margin-bottom: var(--spacing-md);
    font-weight: bold;
}

.scenario-context {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

/* Choices */
.choices-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.choice-btn {
    background: var(--color-white);
    border: 3px solid var(--color-bg-dark);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.choice-btn:hover:not(:disabled) {
    background: var(--color-white);
    border-color: var(--eco-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px) scale(1.02);
}

.choice-btn:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
}

.choice-btn:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.choice-btn.correct {
    background: var(--eco-success);
    color: var(--color-white);
    border-color: var(--eco-success);
    animation: correctPulse 0.6s ease;
    box-shadow: 0 0 20px rgba(39, 174, 96, 0.5);
}

@keyframes correctPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.choice-btn.wrong {
    background: var(--eco-danger);
    color: var(--color-white);
    border-color: var(--eco-danger);
    animation: wrongShake 0.5s ease;
}

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

.choice-btn.hint-highlight {
    animation: hint-glow 2s ease;
    border-color: var(--eco-warning);
}

@keyframes hint-glow {
    0%, 100% {
        box-shadow: 0 0 0 rgba(243, 156, 18, 0);
    }
    50% {
        box-shadow: 0 0 20px rgba(243, 156, 18, 0.8);
    }
}

.choice-letter {
    background: var(--eco-primary);
    color: var(--color-white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.choice-btn.correct .choice-letter,
.choice-btn.wrong .choice-letter {
    background: rgba(255, 255, 255, 0.3);
}

.choice-text {
    flex: 1;
    font-size: 1.125rem;
    line-height: 1.4;
}

.impact-badge {
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-md);
    animation: badgePop 0.4s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

@keyframes badgePop {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.impact-excellent {
    background: linear-gradient(135deg, var(--eco-success), var(--eco-accent));
    color: var(--color-white);
}

.impact-good {
    background: linear-gradient(135deg, var(--eco-info), var(--eco-secondary));
    color: var(--color-white);
}

.impact-neutral {
    background: linear-gradient(135deg, var(--eco-warning), #f39c12);
    color: var(--color-white);
}

.impact-bad {
    background: linear-gradient(135deg, var(--eco-danger), #c0392b);
    color: var(--color-white);
}

/* Feedback Section */
.feedback-section {
    padding: var(--spacing-xl);
    margin: var(--spacing-lg);
    border-radius: var(--radius-lg);
    animation: slideUp 0.5s ease;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.feedback-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.feedback-section.correct {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.05), rgba(39, 174, 96, 0.15));
    border: 3px solid var(--eco-success);
}

.feedback-section.correct::before {
    background: var(--eco-success);
}

.feedback-section.wrong {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.05), rgba(231, 76, 60, 0.15));
    border: 3px solid var(--eco-danger);
}

.feedback-section.wrong::before {
    background: var(--eco-danger);
}

.feedback-text {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.feedback-section.correct .feedback-text {
    color: var(--eco-success);
}

.feedback-section.correct .feedback-text::before {
    content: '✓ ';
    font-size: 1.5rem;
}

.feedback-section.wrong .feedback-text {
    color: var(--eco-danger);
}

.feedback-section.wrong .feedback-text::before {
    content: '✗ ';
    font-size: 1.5rem;
}

.explanation-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--eco-secondary);
}

.btn-next {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ========================================================================
   RESULTS SCREEN
   ======================================================================== */
.results-container {
    text-align: center;
}

.results-title {
    font-size: 2.5rem;
    color: var(--eco-primary);
    margin-bottom: var(--spacing-xl);
}

.score-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--eco-primary), var(--eco-accent));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    animation: scaleIn var(--transition-slow);
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.score-value {
    font-size: 4rem;
    font-weight: bold;
    color: var(--color-white);
}

.score-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.star-rating {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    font-size: 3rem;
}

.star {
    opacity: 0.3;
    transition: opacity var(--transition-normal);
}

.star.earned {
    opacity: 1;
    animation: starPop 0.5s ease;
}

@keyframes starPop {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.3);
    }
    100% {
        transform: scale(1);
    }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--eco-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Scenarios Review */
.scenarios-review-container {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.scenarios-review-container h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

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

.review-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    border-left: 4px solid transparent;
}

.review-item.correct {
    border-left-color: var(--eco-success);
}

.review-item.wrong {
    border-left-color: var(--eco-danger);
}

.review-icon {
    font-size: 1.5rem;
}

.review-title {
    flex: 1;
    font-weight: 500;
}

.review-impact {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.review-points {
    font-weight: bold;
    color: var(--eco-primary);
}

.results-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ========================================================================
   MODALS
   ======================================================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn var(--transition-normal);
    z-index: 1001;
}

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

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg);
}

.modal h2 {
    color: var(--eco-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 2rem;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* Instructions Modal */
.instructions-content {
    text-align: left;
}

.instruction-step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.step-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.instruction-step p {
    font-size: 1rem;
    line-height: 1.6;
    margin-top: 0.25rem;
}

.tips-section,
.keyboard-controls {
    margin-top: var(--spacing-lg);
}

.tips-section h3,
.keyboard-controls h3 {
    color: var(--eco-primary);
    margin-bottom: var(--spacing-md);
}

.tips-section ul {
    list-style: none;
    padding-left: var(--spacing-md);
}

.tips-section li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
    position: relative;
}

.tips-section li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--eco-accent);
    font-weight: bold;
}

.control-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

kbd {
    background: var(--eco-primary);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-weight: bold;
    min-width: 60px;
    text-align: center;
}

/* ========================================================================
   TOAST NOTIFICATIONS
   ======================================================================== */
.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-text);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transition: transform var(--transition-normal);
    max-width: 400px;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast-info {
    background: var(--eco-info);
}

.toast-warning {
    background: var(--eco-warning);
}

.toast-error {
    background: var(--eco-danger);
}

/* ========================================================================
   RESPONSIVE DESIGN
   ======================================================================== */

/* Tablet */
@media (max-width: 768px) {
    .game-title {
        font-size: 2rem;
    }

    .game-icon {
        font-size: 3.5rem;
    }

    .difficulty-cards {
        grid-template-columns: 1fr;
    }

    .game-stats {
        gap: var(--spacing-sm);
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .scenario-title {
        font-size: 1.5rem;
    }

    .choices-container {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    .choice-btn {
        flex-direction: column;
        text-align: center;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

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

/* Mobile */
@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }

    .screen {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .game-title {
        font-size: 1.75rem;
    }

    .game-icon {
        font-size: 3rem;
    }

    .btn-large {
        padding: 1rem 2rem;
        font-size: 1.25rem;
    }

    .game-top-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .game-stats {
        width: 100%;
    }

    .icon-btn {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .scenario-title {
        font-size: 1.25rem;
    }

    .scenario-context {
        font-size: 1rem;
    }

    .choice-text {
        font-size: 1rem;
    }

    .score-circle {
        width: 150px;
        height: 150px;
    }

    .score-value {
        font-size: 3rem;
    }

    .star-rating {
        font-size: 2rem;
    }

    .results-title {
        font-size: 1.75rem;
    }
}

/* ========================================================================
   ACCESSIBILITY
   ======================================================================== */

/* Focus States */
button:focus-visible,
.choice-btn:focus-visible,
.difficulty-card:focus-visible {
    outline: 3px solid var(--eco-accent);
    outline-offset: 2px;
}

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .choice-btn {
        border-width: 4px;
    }

    .btn-primary,
    .btn-secondary {
        font-weight: 700;
    }
}

/* ========================================================================
   PRINT STYLES
   ======================================================================== */
@media print {
    body {
        background: white;
    }

    .screen {
        box-shadow: none;
    }

    .game-top-bar,
    .icon-btn,
    .btn-primary,
    .btn-secondary,
    .btn-link {
        display: none;
    }
}