/* Azure-Style Portal CSS */
@import url('https://fonts.googleapis.com/css2?family=Segoe+UI:wght@300;400;600;700&family=Noto+Sans+Gujarati:wght@400;700&display=swap');

:root {
    --primary-color: #0078d4;
    --primary-hover: #106ebe;
    --secondary-color: #50e6ff;
    --success-color: #107c10;
    --error-color: #d13438;
    --warning-color: #ff8c00;
    --background: #f5f5f5;
    --surface: #ffffff;
    --border-color: #e1e1e1;
    --text-primary: #323130;
    --text-secondary: #605e5c;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

.gujarati {
    font-family: 'Noto Sans Gujarati', sans-serif;
    font-size: 1.1em;
    color: var(--primary-color);
}

.large-text {
    font-size: 1.5em;
}

/* Navigation */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.2rem;
}

.logo {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.nav-link:hover {
    background: var(--background);
}

.nav-user {
    color: var(--text-secondary);
    padding: 0.5rem;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 140px);
}

/* Flash Messages */
.flash-messages {
    margin-bottom: 1rem;
}

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
}

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

.alert-success {
    background: #f3f9f3;
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.alert-error {
    background: #fdf4f4;
    border-left: 4px solid var(--error-color);
    color: var(--error-color);
}

.alert-icon {
    font-size: 1.2rem;
}

.alert-message {
    flex: 1;
}

.alert-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: inherit;
    opacity: 0.6;
}

.alert-close:hover {
    opacity: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

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

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

.btn-logout {
    color: var(--error-color);
}

.btn-large {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.85rem;
}

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 4rem 0;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image {
    display: grid;
    gap: 1rem;
}

.feature-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* Info Section */
.info-section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}

.info-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

.auth-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    margin-bottom: 0.5rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.form-control {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.demo-credentials {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--background);
    border-radius: 4px;
    font-size: 0.9rem;
}

.demo-credentials code {
    background: white;
    padding: 0.2rem 0.4rem;
    border-radius: 2px;
    font-family: monospace;
}

/* Dashboard */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    color: var(--primary-color);
}

.stat-content p {
    color: var(--text-secondary);
}

/* Modules */
.modules-section {
    margin-top: 2rem;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.module-card {
    background: var(--surface);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: transform 0.2s;
}

.module-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.module-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.module-content h3 {
    margin-bottom: 0.5rem;
}

.module-description {
    color: var(--text-secondary);
    margin: 1rem 0;
}

.module-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.module-actions {
    margin-top: 1rem;
}

/* Lessons */
.lessons-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.lesson-card {
    background: var(--surface);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s;
}

.lesson-card:hover {
    transform: translateX(4px);
}

.lesson-card.completed {
    border-left: 4px solid var(--success-color);
}

.lesson-number {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.lesson-content {
    flex: 1;
}

.lesson-description {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

.lesson-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.lesson-status {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-badge.completed {
    background: #e6f4ea;
    color: var(--success-color);
}

.status-badge.in-progress {
    background: #fff4e5;
    color: var(--warning-color);
}

.status-badge.not-started {
    background: var(--background);
    color: var(--text-secondary);
}

.score-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Lesson Content */
.lesson-container {
    max-width: 900px;
    margin: 0 auto;
}

.lesson-header {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.lesson-content-area {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.content-section {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.content-section h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

/* Vocabulary */
.vocabulary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.vocabulary-card {
    background: var(--background);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.vocabulary-card:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.word-gujarati {
    font-family: 'Noto Sans Gujarati', sans-serif;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.word-english {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.word-pronunciation {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

.btn-speak {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    margin-top: 0.5rem;
}

/* Phrases */
.phrases-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.phrase-card {
    background: var(--background);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
}

.phrase-card:hover {
    background: var(--primary-color);
    color: white;
}

.phrase-card:hover .phrase-english,
.phrase-card:hover .phrase-pronunciation {
    color: rgba(255, 255, 255, 0.9);
}

.phrase-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.phrase-gujarati {
    font-family: 'Noto Sans Gujarati', sans-serif;
    font-size: 1.3rem;
    font-weight: bold;
}

.phrase-english {
    font-size: 1rem;
    color: var(--text-secondary);
}

.phrase-pronunciation {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.25rem;
}

/* Activities */
.activity-card {
    background: var(--background);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.activity-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.quiz-question {
    margin-bottom: 2rem;
}

.question-text {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.quiz-options {
    display: grid;
    gap: 0.5rem;
}

.quiz-option {
    background: white;
    border: 2px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.quiz-option:hover:not(:disabled) {
    border-color: var(--primary-color);
    background: var(--background);
}

.quiz-option.correct {
    background: #e6f4ea;
    border-color: var(--success-color);
}

.quiz-option.incorrect {
    background: #fce8e6;
    border-color: var(--error-color);
}

.quiz-option:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.question-feedback {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 4px;
}

.question-feedback .success {
    color: var(--success-color);
    font-weight: bold;
}

.question-feedback .error {
    color: var(--error-color);
}

/* Matching Game */
.matching-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.matching-column h4 {
    margin-bottom: 1rem;
    text-align: center;
}

.matching-item {
    background: white;
    border: 2px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    text-align: left;
    font-size: 1rem;
}

.matching-item:hover:not(:disabled) {
    border-color: var(--primary-color);
    background: var(--background);
}

.matching-item.selected {
    background: var(--secondary-color);
    border-color: var(--primary-color);
}

.matching-item.matched {
    background: #e6f4ea;
    border-color: var(--success-color);
    cursor: default;
}

.matching-item.wrong {
    background: #fce8e6;
    border-color: var(--error-color);
}

.matching-item:disabled {
    cursor: not-allowed;
}

.lesson-footer {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Tables */
.table-container {
    background: var(--surface);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--background);
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
    background: var(--background);
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Section */
.section {
    margin-top: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Student Profile */
.student-profile {
    background: var(--surface);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.profile-info h1 {
    margin-bottom: 0.5rem;
}

.text-muted {
    color: var(--text-secondary);
}

/* Progress Module */
.progress-module {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.progress-items {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.progress-item {
    background: var(--background);
    padding: 1rem;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-item-info {
    display: flex;
    flex-direction: column;
}

.progress-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-item-status {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        padding: 0 1rem;
        height: auto;
        min-height: 60px;
        flex-direction: column;
        gap: 0.5rem;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    
    .nav-brand {
        width: 100%;
        justify-content: center;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        width: 100%;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav-user {
        width: 100%;
        text-align: center;
        padding: 0.25rem;
        font-size: 0.9rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .matching-columns {
        grid-template-columns: 1fr;
    }
    
    .lesson-card {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .lesson-footer {
        flex-direction: column;
    }
}