/* ============================================
   TestXpress AB - Styles
   "Rosa Patente" Theme - Professional, Clean, Modern
   ============================================ */

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

html {
    overscroll-behavior: none;
    /* Match footer color so bottom overscroll doesn't show white */
    background-color: var(--text-primary, #212121);
}

:root {
    --primary-color: #E91E63;
    --primary-light: #F06292;
    --primary-dark: #C2185B;
    --primary-bg: #FCE4EC;
    --secondary-color: #1565C0;
    --secondary-light: #42A5F5;
    --success-color: #43A047;
    --danger-color: #E53935;
    --warning-color: #FB8C00;
    --bg-color: #FFF5F7;
    --card-bg: #FFFFFF;
    --text-primary: #212121;
    --text-secondary: #757575;
    --border-color: #F0D0D8;
    --shadow: 0 2px 8px rgba(233, 30, 99, 0.08);
    --shadow-lg: 0 8px 24px rgba(233, 30, 99, 0.12);
    --radius: 12px;
    --radius-sm: 8px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overscroll-behavior: none;
}

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

/* ============================================
   Header
   ============================================ */

.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 30px 0;
    box-shadow: var(--shadow);
    /* Extend header color into top overscroll area */
    border-top: 100px solid var(--primary-color);
    margin-top: -100px;
}

.header-content {
    text-align: center;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 400;
}

/* ============================================
   Main Container & Pages
   ============================================ */

.main-container {
    margin-top: 40px;
    margin-bottom: 80px;
}

.page {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 30, 99, 0.3);
}

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

.btn-secondary:hover {
    background: #0D47A1;
    transform: translateY(-2px);
}

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

.btn-success:hover {
    background: #2E7D32;
    transform: translateY(-2px);
}

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

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

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

.btn-warning:hover {
    background: #EF6C00;
}

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

.btn-danger:hover {
    background: #C62828;
}

.btn-back {
    background: var(--text-secondary);
    color: white;
    margin-bottom: 30px;
}

.btn-back:hover {
    background: #616161;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-link {
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.9rem;
    padding: 5px;
}

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

.btn-filter {
    background: var(--bg-color);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

/* ============================================
   Login Page
   ============================================ */

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 40px 0;
}

.login-box {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 50px;
    max-width: 480px;
    width: 100%;
    text-align: center;
}

.login-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.login-box h2 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.login-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.form-select,
.form-select-inline {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: white;
    cursor: pointer;
    font-family: inherit;
}

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

.form-select-inline {
    width: auto;
    min-width: 160px;
}

.form-help {
    display: block;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.btn-login {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
    margin-top: 10px;
}

.error-message {
    background: #FFEBEE;
    color: var(--danger-color);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    border-left: 4px solid var(--danger-color);
    font-size: 0.95rem;
}

.success-message {
    background: #E8F5E9;
    color: var(--success-color);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    border-left: 4px solid var(--success-color);
}

.login-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.login-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* GDPR Consent */
.gdpr-consent {
    margin-top: 15px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
    flex-shrink: 0;
}

.checkbox-label a {
    color: var(--primary-color);
}

/* ============================================
   User Info Bar
   ============================================ */

.user-info {
    background: var(--primary-bg);
    padding: 15px 20px;
    border-radius: var(--radius);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.user-info-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.user-info-left span {
    color: var(--primary-dark);
}

.user-email-small {
    font-size: 0.85rem;
    opacity: 0.8;
}

.user-info-right {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

/* ============================================
   Welcome Section & Mode Selection
   ============================================ */

.welcome-section {
    text-align: center;
    margin-bottom: 40px;
}

.welcome-section h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.welcome-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.mode-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.mode-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

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

.exam-mode {
    border-color: var(--primary-color);
}

.practice-mode {
    border-color: var(--secondary-color);
}

.mode-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.mode-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.mode-card > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.practice-options-home {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.practice-options-home .form-label {
    margin-bottom: 0;
    font-weight: 600;
}

/* ============================================
   Quiz Page
   ============================================ */

.quiz-header {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px 30px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
    gap: 15px;
}

.quiz-info h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.quiz-stats {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

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

.timer.warning {
    color: var(--warning-color);
}

.timer.danger {
    color: var(--danger-color);
}

/* Progress Bar */
.progress-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    margin-bottom: 30px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: width 0.3s ease;
    border-radius: 10px;
}

/* Quiz Content Layout */
.quiz-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
}

/* Quiz Navigation Sidebar */
.quiz-navigation {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.quiz-navigation h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.question-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
    gap: 6px;
    margin-bottom: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.nav-btn {
    width: 38px;
    height: 38px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background: white;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.nav-btn:hover {
    transform: scale(1.05);
}

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

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

.nav-legend {
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.nav-indicator {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    background: white;
}

.nav-indicator.current {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.nav-indicator.answered {
    border-color: var(--success-color);
    background: var(--success-color);
}

.nav-indicator.unanswered {
    border-color: var(--border-color);
    background: white;
}

/* Question Card */
.quiz-main {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.question-card {
    margin-bottom: 30px;
}

.question-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.question-number {
    color: var(--text-secondary);
    font-weight: 600;
}

.question-image-container {
    text-align: center;
    margin-bottom: 20px;
}

.question-img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    object-fit: contain;
}

.question-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-primary);
    padding: 20px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
}

/* Answer Buttons (Vero/Falso) */
.answers-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.answer-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border: 3px solid var(--border-color);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.answer-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.answer-btn.selected {
    font-weight: bold;
    border-width: 4px;
}

.answer-true:hover,
.answer-true.selected {
    border-color: var(--success-color);
    background: #E8F5E9;
}

.answer-false:hover,
.answer-false.selected {
    border-color: var(--danger-color);
    background: #FFEBEE;
}

.answer-letter {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.answer-true .answer-letter {
    color: var(--success-color);
}

.answer-false .answer-letter {
    color: var(--danger-color);
}

.answer-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Quiz Controls */
.quiz-controls {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

/* ============================================
   Results Page
   ============================================ */

.results-header {
    text-align: center;
    margin-bottom: 40px;
}

.result-badge {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.result-badge.passed {
    background: var(--success-color);
    color: white;
}

.result-badge.failed {
    background: var(--danger-color);
    color: white;
}

.result-badge.practice {
    background: var(--secondary-color);
    color: white;
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.summary-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow);
}

.summary-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.summary-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.summary-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

/* Review Section */
.review-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.review-section h3 {
    margin-bottom: 20px;
    text-align: center;
}

.review-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.review-question {
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid var(--border-color);
}

.review-question.correct {
    border-left-color: var(--success-color);
    background: #f1f8f1;
}

.review-question.wrong {
    border-left-color: var(--danger-color);
    background: #fef5f5;
}

.review-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.review-question-number {
    font-weight: 600;
    color: var(--text-secondary);
}

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

.review-question-text {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
    line-height: 1.6;
}

.review-question-image {
    text-align: center;
    margin-bottom: 10px;
}

.review-question-image img {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.review-answers {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.review-answer {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.review-answer.user-answer {
    background: #FFEBEE;
    color: var(--danger-color);
}

.review-answer.correct-answer {
    background: #E8F5E9;
    color: var(--success-color);
}

.review-answer.user-correct {
    background: #E8F5E9;
    color: var(--success-color);
}

/* ============================================
   Admin Page
   ============================================ */

.admin-container {
    max-width: 1000px;
    margin: 0 auto;
}

.admin-box {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 50px;
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.admin-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.admin-box h2 {
    margin-bottom: 10px;
}

.admin-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.admin-form {
    text-align: left;
}

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

.admin-header h2 {
    font-size: 1.8rem;
}

/* Admin Tabs */
.admin-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 25px;
    background: var(--bg-color);
    padding: 5px;
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
}

.admin-tab {
    padding: 12px 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.admin-tab:hover {
    background: var(--card-bg);
}

.admin-tab.active {
    background: var(--primary-color);
    color: white;
}

.admin-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.admin-tab-content {
    display: none;
}

.admin-tab-content.active {
    display: block;
}

.admin-card {
    margin-bottom: 30px;
}

.admin-card:last-child {
    margin-bottom: 0;
}

.admin-card h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.admin-card h4 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.admin-card > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Inline Form */
.inline-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.inline-form .form-input {
    flex: 1;
}

/* Generate Form */
.generate-form {
    max-width: 500px;
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Entities List */
.entities-list {
    max-height: 300px;
    overflow-y: auto;
}

.entity-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
}

.entity-item strong {
    color: var(--text-primary);
}

/* Codes List */
.codes-list {
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    max-height: 300px;
    overflow-y: auto;
}

.codes-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.code-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 10px;
}

.code-value {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.code-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.code-status {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.code-status.used {
    color: var(--danger-color);
}

.code-status.available {
    color: var(--success-color);
}

.btn-copy-code {
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}

.btn-copy-code:hover {
    background: #0D47A1;
}

/* Supervisors List */
.supervisors-list {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid var(--border-color);
}

.supervisor-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
}

.supervisor-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.supervisor-info strong {
    color: var(--text-primary);
}

.supervisor-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Admin Tables */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--bg-color);
    font-weight: 600;
    color: var(--text-secondary);
}

.admin-table tr:hover {
    background: var(--bg-color);
}

/* Candidates list */
.candidates-controls {
    margin-bottom: 20px;
}

.candidate-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.candidate-row:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.candidate-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.candidate-info strong {
    color: var(--text-primary);
}

.candidate-info span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.candidate-stats {
    text-align: right;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Candidate Detail */
.candidate-stats-container {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 25px;
}

.candidate-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.candidate-stat-item {
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    padding: 15px;
    text-align: center;
}

.candidate-stat-item .stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.candidate-stat-item .stat-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.candidate-stat-item.stat-passed .stat-number {
    color: var(--success-color);
}

.candidate-stat-item.stat-failed .stat-number {
    color: var(--danger-color);
}

/* Result Row (for quiz history) */
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border-left: 4px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.result-row:hover {
    box-shadow: var(--shadow);
}

.result-row.passed {
    border-left-color: var(--success-color);
}

.result-row.failed {
    border-left-color: var(--danger-color);
}

.result-passed {
    color: var(--success-color);
    font-weight: 600;
}

.result-failed {
    color: var(--danger-color);
    font-weight: 600;
}

/* ============================================
   Supervisor Page
   ============================================ */

.supervisor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    padding: 20px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.supervisor-header h2 {
    margin-bottom: 5px;
}

.supervisor-header p {
    color: var(--text-secondary);
}

.supervisor-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.supervisor-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
}

.supervisor-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
}

.supervisor-card h3 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

/* ============================================
   Modal
   ============================================ */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1100;
    padding: 20px;
}

.modal.active,
.modal[style*="display: flex"] {
    display: flex !important;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    border: none;
    background: transparent;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 5px;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 25px;
}

.gdpr-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

/* ============================================
   Loading Overlay
   ============================================ */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1200;
    flex-direction: column;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    color: white;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--text-primary);
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 60px;
}

.footer p {
    margin: 5px 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.footer a:hover {
    color: white;
}

/* ============================================
   Access Detection / Security System Styles
   ============================================ */

.access-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.suspicious-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    border-left: 4px solid var(--warning-color);
}

.suspicious-user-item.locked {
    background: #fff3e0;
    border-left-color: var(--danger-color);
}

.suspicious-user-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.suspicious-user-info strong {
    color: var(--text-primary);
}

.suspicious-user-info span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.suspicious-user-actions {
    display: flex;
    gap: 8px;
}

.evidence-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.evidence-list li {
    padding: 4px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.evidence-list li::before {
    content: "⚠️ ";
    margin-right: 5px;
}

.risk-score {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 1rem;
}

.risk-score.risk-critical {
    background: #ffebee;
    color: #c62828;
}

.risk-score.risk-high {
    background: #fff3e0;
    color: #e65100;
}

.risk-score.risk-medium {
    background: #fff8e1;
    color: #f57f17;
}

.risk-score.risk-low {
    background: #e8f5e9;
    color: #2e7d32;
}

.risk-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.risk-badge.risk-critical {
    background: #c62828;
    color: white;
}

.risk-badge.risk-high {
    background: #e65100;
    color: white;
}

.risk-badge.risk-medium {
    background: #f57f17;
    color: white;
}

.risk-badge.risk-low {
    background: #2e7d32;
    color: white;
}

/* ============================================
   Empty / Error States
   ============================================ */

.empty-state,
.error-state {
    text-align: center;
    padding: 40px 20px;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.error-state p {
    color: var(--danger-color);
    font-size: 1.1rem;
}

/* ============================================
   Responsive Design
   ============================================ */

/* --- Tablet (max 900px) --- */
@media (max-width: 900px) {
    .quiz-content {
        grid-template-columns: 1fr;
    }

    .quiz-navigation {
        position: relative;
        top: 0;
    }

    .question-nav-grid {
        max-height: 120px;
        grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
    }

    .admin-container {
        max-width: 100%;
    }

    .admin-content {
        padding: 20px;
    }

    .candidate-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .access-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Mobile (max 768px) --- */
@media (max-width: 768px) {
    /* Header */
    .header {
        padding: 16px 0;
    }

    .logo {
        font-size: 1.6rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    /* Container */
    .container {
        padding: 0 12px;
    }

    .main-container {
        margin-top: 20px;
        margin-bottom: 40px;
    }

    /* User Info Bar */
    .user-info {
        flex-direction: column;
        gap: 12px;
        text-align: center;
        padding: 12px 15px;
    }

    .user-info-right {
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }

    .user-info-right .btn-sm {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    /* Welcome Section */
    .welcome-section h2 {
        font-size: 1.3rem;
    }

    .welcome-section p {
        font-size: 0.95rem;
    }

    /* Mode Selection */
    .mode-selection {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .mode-card {
        padding: 25px 20px;
    }

    .mode-icon {
        font-size: 2.8rem;
        margin-bottom: 12px;
    }

    .mode-card h3 {
        font-size: 1.2rem;
    }

    .mode-card > p {
        font-size: 0.9rem;
        margin-bottom: 15px;
    }

    .practice-options-home {
        flex-direction: column;
        gap: 8px;
    }

    .practice-options-home .form-select-inline {
        width: 100%;
    }

    /* Quiz Header */
    .quiz-header {
        flex-direction: column;
        text-align: center;
        padding: 15px;
        gap: 10px;
    }

    .quiz-info h2 {
        font-size: 1.1rem;
    }

    .quiz-stats {
        justify-content: center;
        font-size: 0.85rem;
        gap: 10px;
    }

    /* Quiz Navigation - horizontal strip on mobile */
    .quiz-navigation {
        padding: 12px;
    }

    .quiz-navigation h3 {
        font-size: 0.95rem;
        margin-bottom: 10px;
    }

    .question-nav-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
        max-height: 100px;
        overflow-y: auto;
    }

    .nav-btn {
        width: 34px;
        height: 34px;
        font-size: 0.75rem;
        flex-shrink: 0;
    }

    .nav-legend {
        display: none;
    }

    /* Quiz Main - Question Area */
    .quiz-main {
        padding: 15px;
    }

    .question-header {
        margin-bottom: 12px;
        padding-bottom: 10px;
    }

    .question-text {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: 20px;
        padding: 15px;
    }

    .question-img {
        max-height: 200px;
    }

    /* Answer Buttons - Vero/Falso */
    .answers-container {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .answer-btn {
        padding: 20px 10px;
    }

    .answer-letter {
        font-size: 2rem;
    }

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

    /* Quiz Controls */
    .quiz-controls {
        flex-direction: column;
        gap: 10px;
    }

    .quiz-controls .btn {
        width: 100%;
    }

    /* Results Page */
    .results-header h1 {
        font-size: 1.5rem;
    }

    .result-badge {
        padding: 12px 25px;
        font-size: 1.1rem;
    }

    .results-summary {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .summary-card {
        padding: 15px;
    }

    .summary-icon {
        font-size: 1.8rem;
        margin-bottom: 8px;
    }

    .summary-value {
        font-size: 1.5rem;
    }

    .summary-label {
        font-size: 0.8rem;
    }

    .results-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .results-actions .btn {
        width: 100%;
    }

    /* Review Section */
    .review-section {
        padding: 15px;
    }

    .review-filters {
        flex-wrap: wrap;
        gap: 6px;
    }

    .review-filters .btn-filter {
        flex: 1;
        min-width: 90px;
        text-align: center;
        font-size: 0.8rem;
        padding: 8px 10px;
    }

    .review-question {
        padding: 15px;
    }

    .review-answers {
        flex-direction: column;
        gap: 8px;
    }

    .review-answer {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    /* Login */
    .login-container {
        min-height: 60vh;
        padding: 20px 0;
    }

    .login-box {
        padding: 30px 20px;
    }

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

    .login-box h2 {
        font-size: 1.4rem;
    }

    .login-links {
        flex-direction: column;
        gap: 10px;
    }

    /* Admin Page */
    .admin-box {
        padding: 30px 20px;
    }

    .admin-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .admin-header h2 {
        font-size: 1.3rem;
    }

    .admin-tabs {
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 4px;
        padding: 4px;
    }

    .admin-tabs::-webkit-scrollbar {
        display: none;
    }

    .admin-tab {
        flex-shrink: 0;
        padding: 10px 14px;
        font-size: 0.8rem;
        white-space: nowrap;
    }

    .admin-content {
        padding: 15px;
    }

    .admin-card h3 {
        font-size: 1.1rem;
    }

    /* Inline Forms */
    .inline-form {
        flex-direction: column;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* Admin Candidates filter bar */
    .form-group[style*="display: flex"] {
        flex-direction: column !important;
    }

    .form-group[style*="display: flex"] select,
    .form-group[style*="display: flex"] input {
        max-width: 100% !important;
        width: 100% !important;
    }

    /* Entity items */
    .entity-item {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    /* Code items */
    .code-item {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    .code-value {
        font-size: 0.95rem;
        word-break: break-all;
    }

    .codes-actions {
        flex-wrap: wrap;
    }

    /* Supervisor items */
    .supervisor-item {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    /* Candidate rows */
    .candidate-row {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    .candidate-stats {
        text-align: left;
    }

    /* Result rows */
    .result-row {
        flex-direction: column;
        gap: 6px;
        align-items: flex-start;
    }

    /* Supervisor Page */
    .supervisor-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
        padding: 15px;
    }

    .supervisor-header h2 {
        font-size: 1.3rem;
    }

    .supervisor-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-icon {
        font-size: 1.8rem;
        margin-bottom: 6px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .supervisor-card {
        padding: 15px;
    }

    /* Suspicious user items */
    .suspicious-user-item {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .suspicious-user-actions {
        width: 100%;
    }

    .suspicious-user-actions .btn {
        flex: 1;
    }

    /* Modal */
    .modal {
        padding: 10px;
    }

    .modal-content {
        max-height: 95vh;
        border-radius: var(--radius-sm);
    }

    .modal-content-large {
        max-width: 100%;
    }

    .modal-header {
        padding: 15px;
    }

    .modal-header h3 {
        font-size: 1.1rem;
    }

    .modal-body {
        padding: 15px;
    }

    .gdpr-actions {
        flex-direction: column;
    }

    .gdpr-actions .btn {
        width: 100%;
    }

    /* Admin Tables - horizontal scroll */
    .admin-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .admin-table th,
    .admin-table td {
        padding: 10px 12px;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    /* Footer */
    .footer {
        padding: 20px 0;
        margin-top: 30px;
    }

    .footer p {
        font-size: 0.8rem;
    }

    /* Buttons - ensure touch targets */
    .btn {
        min-height: 44px;
        padding: 10px 18px;
    }

    .btn-sm {
        min-height: 36px;
        padding: 8px 12px;
    }

    /* General form inputs - bigger touch targets */
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group input[type="number"],
    .form-input,
    .form-select,
    .form-select-inline {
        font-size: 16px; /* Prevents iOS zoom on focus */
        padding: 12px 14px;
    }

    /* Quiz detail modal */
    .quiz-question-card {
        flex-direction: column;
        gap: 10px;
    }

    .quiz-question-img {
        max-width: 100%;
    }

    .quiz-detail-stats {
        flex-direction: column;
        gap: 4px;
    }

    .quiz-answer-row {
        flex-direction: column;
        gap: 6px;
    }
}

/* --- Small phones (max 380px) --- */
@media (max-width: 380px) {
    .container {
        padding: 0 8px;
    }

    .logo {
        font-size: 1.3rem;
    }

    .tagline {
        font-size: 0.8rem;
    }

    .mode-card {
        padding: 20px 15px;
    }

    .answers-container {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .answer-btn {
        flex-direction: row;
        gap: 12px;
        padding: 16px;
    }

    .answer-letter {
        font-size: 1.6rem;
        margin-bottom: 0;
    }

    .results-summary {
        grid-template-columns: 1fr;
    }

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

    .admin-tab {
        padding: 8px 10px;
        font-size: 0.75rem;
    }

    .user-info-right .btn-sm {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .nav-btn {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
}

/* --- Prevent horizontal overflow globally --- */
html, body {
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

/* --- Safe area support (notch phones) --- */
@supports (padding: env(safe-area-inset-bottom)) {
    .footer {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
    }

    .modal {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ============================================
   Quiz Detail Modal (Supervisor)
   ============================================ */

.modal-content-large {
    max-width: 850px;
}

.quiz-detail-header {
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 10px;
    background: var(--bg-secondary);
}

.quiz-detail-header.quiz-detail-passed {
    background: rgba(76, 175, 80, 0.1);
    border-left: 4px solid #4caf50;
}

.quiz-detail-header.quiz-detail-failed {
    background: rgba(244, 67, 54, 0.1);
    border-left: 4px solid #f44336;
}

.quiz-detail-summary h3 {
    margin: 0 0 12px 0;
    font-size: 1.2rem;
}

.quiz-detail-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.quiz-question-card {
    display: flex;
    gap: 15px;
    padding: 15px;
    margin-bottom: 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    transition: transform 0.15s;
}

.quiz-question-card.quiz-question-wrong {
    border-left: 4px solid #f44336;
    background: rgba(244, 67, 54, 0.03);
}

.quiz-question-card.quiz-question-correct {
    border-left: 4px solid #4caf50;
    background: rgba(76, 175, 80, 0.03);
}

.quiz-question-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.quiz-question-body {
    flex: 1;
    min-width: 0;
}

.quiz-question-img {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

.quiz-question-text {
    margin: 0 0 10px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.quiz-answer-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.quiz-answer {
    font-size: 0.85rem;
    padding: 5px 12px;
    border-radius: 6px;
}

.quiz-answer-user.wrong {
    background: rgba(244, 67, 54, 0.12);
    color: #d32f2f;
}

.quiz-answer-correct {
    background: rgba(76, 175, 80, 0.12);
    color: #2e7d32;
}

.badge-practice {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(255, 152, 0, 0.15);
    color: #e65100;
    margin-left: 8px;
    vertical-align: middle;
}