/* Estilos principais - Interface adaptada para idosos */

:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background-color: #ffffff;
    --surface-color: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --font-size-base: 18px;
    --font-size-lg: 24px;
    --font-size-xl: 32px;
    --font-size-xxl: 48px;
}

/* Alto contraste para acessibilidade */
.high-contrast {
    --primary-color: #0000ff;
    --secondary-color: #0066ff;
    --background-color: #ffffff;
    --surface-color: #f0f0f0;
    --text-primary: #000000;
    --text-secondary: #333333;
    --border-color: #000000;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header h1 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.header h1 i {
    font-size: var(--font-size-xxl);
}

.user-info {
    text-align: right;
}

.user-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: block;
}

.progress-bar {
    width: 200px;
    height: 12px;
    background: var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 6px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Navigation */
.nav-menu {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 25px;
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    min-width: 120px;
}

.nav-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

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

.nav-btn i {
    font-size: var(--font-size-lg);
}

/* Main Content */
.main-content {
    margin-bottom: 30px;
}

.section {
    display: none;
}

.section.active {
    display: block;
}

/* Welcome Card */
.welcome-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 40px;
    margin-bottom: 30px;
    text-align: center;
    box-shadow: var(--shadow);
}

.welcome-card h2 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-bottom: 15px;
}

.welcome-card p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
}

.stat-card i {
    font-size: var(--font-size-xxl);
    color: var(--primary-color);
    margin-bottom: 15px;
    display: block;
}

.stat-card h3 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-card p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin: 0;
}

/* Modules Grid */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.module-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 35px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.module-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.module-icon i {
    font-size: var(--font-size-xl);
    color: white;
}

.module-card h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 10px;
}

.module-card p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.module-progress {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Exercise Container */
.exercise-container {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
}

.exercise-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
    gap: 15px;
}

.exercise-header h2 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.exercise-info {
    display: flex;
    gap: 30px;
    align-items: center;
}

.exercise-info span {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.score {
    font-weight: 600;
    color: var(--primary-color);
}

/* Instruction Card */
.instruction-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 25px;
    border: 2px solid var(--border-color);
}

.instruction-card h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 15px;
}

.audio-controls {
    margin-top: 15px;
}

.btn-audio {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

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

/* Typing Area */
.typing-area {
    margin-bottom: 25px;
}

.text-to-type {
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 25px;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.typing-input {
    width: 100%;
    min-height: 120px;
    padding: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.typing-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Question Card */
.question-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 25px;
    border: 2px solid var(--border-color);
}

.question-text h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 25px;
    line-height: 1.5;
}

.options-grid {
    display: grid;
    gap: 15px;
}

.option-btn {
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

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

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

.option-btn.wrong {
    background: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

.option-letter {
    font-weight: 700;
    font-size: var(--font-size-lg);
    min-width: 30px;
}

/* Exercise Controls */
.exercise-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    min-width: 150px;
    justify-content: center;
}

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

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

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

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

/* Feedback */
.feedback {
    margin-top: 20px;
    display: none;
}

.feedback-message {
    padding: 15px 20px;
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feedback-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 2px solid var(--success-color);
}

.feedback-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 2px solid var(--error-color);
}

.feedback-message.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 2px solid var(--warning-color);
}

/* Profile */
.profile-container {
    max-width: 800px;
    margin: 0 auto;
}

.profile-container h2 {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.profile-card, .progress-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 2px solid var(--border-color);
}

.profile-card h3, .progress-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    margin-bottom: 20px;
}

.stats-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-item span {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.stat-item strong {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.progress-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.progress-item span:first-child {
    min-width: 100px;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.progress-bar-small {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill-small {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-item span:last-child {
    min-width: 50px;
    text-align: right;
    font-size: 16px;
    color: var(--text-secondary);
}

/* Achievements */
.achievements {
    margin-bottom: 40px;
}

.achievements h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    margin-bottom: 20px;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.achievement-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    border: 2px solid var(--border-color);
    position: relative;
    transition: all 0.3s ease;
}

.achievement-card.unlocked {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: var(--primary-color);
}

.achievement-card.locked {
    opacity: 0.6;
}

.achievement-icon {
    font-size: var(--font-size-xxl);
    margin-bottom: 15px;
    display: block;
}

.achievement-card h4 {
    font-size: var(--font-size-base);
    margin-bottom: 8px;
}

.achievement-card p {
    font-size: 14px;
    margin: 0;
    opacity: 0.9;
}

.achievement-lock {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: var(--font-size-lg);
    opacity: 0.7;
}

/* Settings */
.settings {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 2px solid var(--border-color);
}

.settings h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    margin-bottom: 20px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.setting-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.setting-item label {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: 500;
}

.setting-item select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: var(--font-size-base);
    background: var(--background-color);
    color: var(--text-primary);
}

.setting-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Achievement Notification */
.achievement-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--surface-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-width: 300px;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

.achievement-info h4 {
    font-size: var(--font-size-base);
    color: var(--primary-color);
    margin-bottom: 5px;
}

.achievement-info h5 {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin-bottom: 5px;
}

.achievement-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-base: 16px;
        --font-size-lg: 20px;
        --font-size-xl: 24px;
        --font-size-xxl: 36px;
    }
    
    .app-container {
        padding: 15px;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-menu {
        justify-content: center;
    }
    
    .nav-btn {
        min-width: auto;
        padding: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
    
    .exercise-header {
        flex-direction: column;
        text-align: center;
    }
    
    .exercise-info {
        flex-direction: column;
        gap: 10px;
    }
    
    .exercise-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary {
        min-width: 200px;
    }
    
    .profile-stats {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
        --font-size-lg: 18px;
        --font-size-xl: 20px;
        --font-size-xxl: 28px;
    }
    
    .header {
        padding: 20px;
    }
    
    .welcome-card {
        padding: 25px;
    }
    
    .exercise-container {
        padding: 25px;
    }
    
    .module-card {
        padding: 25px;
    }
    
    .profile-card, .progress-card {
        padding: 20px;
    }
    
    .achievement-notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* Acessibilidade adicional */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Foco visível para navegação por teclado */
.nav-btn:focus,
.option-btn:focus,
.btn-primary:focus,
.btn-secondary:focus,
.btn-audio:focus,
.typing-input:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Alto contraste para usuários com baixa visão */
.high-contrast .nav-btn,
.high-contrast .option-btn,
.high-contrast .btn-secondary {
    border-width: 3px;
}

.high-contrast .progress-fill,
.high-contrast .progress-fill-small {
    background: #0000ff;
}

.high-contrast .feedback-message {
    border-width: 3px;
}