/* ============================================
   Driving License Learning Platform - Main Styles
   ============================================ */

/* CSS Variables */
:root {
    --primary: #1a56db;
    --primary-dark: #1e429f;
    --primary-light: #3b82f6;
    --secondary: #0e9f6e;
    --secondary-dark: #057a55;
    --accent: #f59e0b;
    --danger: #e02424;
    --danger-dark: #c81e1e;
    --warning: #f59e0b;
    --success: #0e9f6e;
    --info: #3b82f6;

    --bg: #f8fafc;
    --bg-white: #ffffff;
    --bg-dark: #1e293b;
    --bg-card: #ffffff;

    --text: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;

    --border: #e2e8f0;
    --border-light: #f1f5f9;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --font: 'Noto Sans Georgian', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.25s ease;
    --header-height: 72px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    color: var(--primary-dark);
}

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

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== HEADER / NAVBAR ========== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

.navbar {
    height: 100%;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

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

.logo-icon {
    font-size: 1.6rem;
    color: var(--primary);
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(26, 86, 219, 0.08);
}

.nav-link i {
    font-size: 0.9rem;
}

/* Dropdown */
.has-dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-arrow {
    font-size: 0.7rem;
    transition: transform var(--transition);
}

.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition);
    z-index: 100;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--text);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.dropdown-menu a:hover {
    background: rgba(26, 86, 219, 0.08);
    color: var(--primary);
}

.dropdown-menu a i {
    width: 18px;
    color: var(--primary);
}

.nav-auth {
    margin-left: 8px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
    position: absolute;
    left: 9px;
}

.hamburger {
    top: 19px;
}

.hamburger::before {
    content: '';
    top: -7px;
}

.hamburger::after {
    content: '';
    top: 7px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

.nav-overlay {
    display: none;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

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

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--text-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--secondary-dark);
    border-color: var(--secondary-dark);
    color: var(--text-white);
}

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

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

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

.btn-danger:hover {
    background: var(--danger-dark);
    border-color: var(--danger-dark);
    color: var(--text-white);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--border-light);
    color: var(--text);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ========== HERO ========== */
.hero {
    background: linear-gradient(135deg, #1a56db 0%, #1e429f 50%, #0e9f6e 100%);
    color: var(--text-white);
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 32px;
    max-width: 480px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-actions .btn-primary {
    background: var(--text-white);
    color: var(--primary);
    border-color: var(--text-white);
}

.hero-actions .btn-primary:hover {
    background: var(--bg);
    transform: translateY(-2px);
}

.hero-actions .btn-outline {
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--text-white);
}

.hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-white);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    width: 100%;
    max-width: 360px;
}

.hero-card-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2.8rem;
}

.hero-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.hero-card p {
    opacity: 0.85;
    font-size: 0.95rem;
}

/* ========== SECTIONS ========== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ========== FEATURE CARDS ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 86, 219, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.12), rgba(14, 159, 110, 0.12));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.6rem;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========== STATS ========== */
.stats-section {
    background: var(--bg-white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-item p {
    color: var(--text-muted);
    font-weight: 500;
}

/* ========== FORMS ========== */
.auth-section {
    padding: 60px 0 80px;
    min-height: calc(100vh - var(--header-height) - 200px);
    display: flex;
    align-items: center;
}

.auth-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    max-width: 480px;
    width: 100%;
    margin: 0 auto;
    border: 1px solid var(--border-light);
}

.auth-card-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-card-header .auth-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: white;
    font-size: 1.5rem;
}

.auth-card-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-card-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text);
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    transition: all var(--transition);
    font-size: 0.95rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
    background: var(--bg-white);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(224, 36, 36, 0.15);
}

.form-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-hint {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .form-control {
    padding-left: 44px;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1rem;
}

.password-toggle {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 4px;
}

.password-toggle:hover {
    color: var(--text);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.auth-footer a {
    font-weight: 600;
}

/* ========== FLASH MESSAGES ========== */
.flash-container {
    position: fixed;
    top: calc(var(--header-height) + 16px);
    right: 20px;
    z-index: 2000;
    max-width: 400px;
}

.flash {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    background: var(--bg-white);
    border-left: 4px solid;
    animation: slideIn 0.3s ease;
}

.flash-success {
    border-color: var(--success);
}

.flash-success i {
    color: var(--success);
}

.flash-error {
    border-color: var(--danger);
}

.flash-error i {
    color: var(--danger);
}

.flash-info {
    border-color: var(--info);
}

.flash-info i {
    color: var(--info);
}

.flash span {
    flex: 1;
    font-size: 0.9rem;
    font-weight: 500;
}

.flash-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========== DASHBOARD (User) ========== */
.dashboard-section {
    padding: 40px 0 60px;
}

.welcome-banner {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--radius-lg);
    padding: 32px 36px;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.welcome-banner h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.welcome-banner p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 28px;
}

.profile-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.profile-header {
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.1), rgba(14, 159, 110, 0.1));
    padding: 28px;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    color: white;
    font-size: 2rem;
    font-weight: 600;
}

.profile-header h3 {
    font-size: 1.15rem;
    margin-bottom: 4px;
}

.profile-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.profile-body {
    padding: 20px 24px;
}

.profile-info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

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

.profile-info-item i {
    color: var(--primary);
    width: 20px;
    margin-top: 2px;
}

.profile-info-item .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
}

.profile-info-item .value {
    font-weight: 500;
    font-size: 0.95rem;
}

.profile-actions {
    padding: 16px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dashboard-main {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.dash-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.dash-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.dash-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.dash-card-icon.blue {
    background: rgba(26, 86, 219, 0.12);
    color: var(--primary);
}

.dash-card-icon.green {
    background: rgba(14, 159, 110, 0.12);
    color: var(--secondary);
}

.dash-card-icon.orange {
    background: rgba(245, 158, 11, 0.12);
    color: var(--accent);
}

.dash-card-icon.purple {
    background: rgba(124, 58, 237, 0.12);
    color: #7c3aed;
}

.dash-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.dash-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.coming-soon {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: #b45309;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-top: 6px;
}

/* ========== ABOUT PAGE ========== */
.about-hero {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 60px 0;
    text-align: center;
}

.about-hero h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.about-hero p {
    opacity: 0.9;
    max-width: 560px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.about-content {
    padding: 60px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text h2 {
    font-size: 1.6rem;
    margin-bottom: 16px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.7;
}

.about-features {
    display: grid;
    gap: 16px;
}

.about-feature {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.about-feature i {
    color: var(--secondary);
    font-size: 1.2rem;
    margin-top: 2px;
}

.about-feature h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.about-feature p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 14px;
}

.footer-logo i {
    color: var(--primary-light);
    font-size: 1.4rem;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    opacity: 0.75;
}

.footer-title {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.footer-contact i {
    color: var(--primary-light);
    width: 16px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

/* ========== ADMIN STYLES ========== */
.admin-body {
    background: #f1f5f9;
}

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--bg-dark);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition);
}

.admin-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-sidebar-header i {
    color: var(--primary-light);
    font-size: 1.4rem;
}

.admin-sidebar-header span {
    font-weight: 700;
    font-size: 1.05rem;
}

.admin-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
    font-size: 0.925rem;
    font-weight: 500;
    margin-bottom: 2px;
    transition: all var(--transition);
}

.admin-nav-item:hover,
.admin-nav-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.admin-nav-item.active {
    background: var(--primary);
}

.admin-nav-item i {
    width: 20px;
    text-align: center;
}

.admin-sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

.admin-topbar {
    background: white;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-topbar-title {
    font-size: 1.15rem;
    font-weight: 600;
}

.admin-topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.admin-content {
    padding: 28px;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.admin-stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.admin-stat-icon.blue { background: rgba(26, 86, 219, 0.12); color: var(--primary); }
.admin-stat-icon.green { background: rgba(14, 159, 110, 0.12); color: var(--secondary); }
.admin-stat-icon.orange { background: rgba(245, 158, 11, 0.12); color: var(--accent); }
.admin-stat-icon.red { background: rgba(224, 36, 36, 0.12); color: var(--danger); }

.admin-stat-info h3 {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
}

.admin-stat-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.admin-card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    margin-bottom: 24px;
}

.admin-card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.admin-card-body {
    padding: 24px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.admin-table th {
    text-align: left;
    padding: 12px 16px;
    background: var(--bg);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border);
}

.admin-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.admin-table tr:hover td {
    background: rgba(26, 86, 219, 0.03);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(14, 159, 110, 0.12);
    color: var(--secondary-dark);
}

.badge-danger {
    background: rgba(224, 36, 36, 0.12);
    color: var(--danger);
}

.badge-info {
    background: rgba(26, 86, 219, 0.12);
    color: var(--primary-dark);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #b45309;
}

.action-btns {
    display: flex;
    gap: 6px;
}

.btn-icon {
    width: 34px;
    height: 34px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: white;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.85rem;
}

.btn-icon:hover {
    background: var(--bg);
    color: var(--text);
}

.btn-icon.btn-view:hover { color: var(--primary); border-color: var(--primary); }
.btn-icon.btn-edit:hover { color: var(--secondary); border-color: var(--secondary); }
.btn-icon.btn-block:hover { color: var(--warning); border-color: var(--warning); }
.btn-icon.btn-delete:hover { color: var(--danger); border-color: var(--danger); }

/* Admin login */
.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 20px;
}

.admin-login-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.admin-login-card .auth-icon {
    background: var(--bg-dark);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-none { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}


/* Admin card full width by default */
.admin-card {
    width: 100%;
}

.admin-card.admin-card-sm {
    max-width: 100%;
    width: 100%;
}

/* Logo upload preview */
.logo-preview {
    max-height: 60px;
    max-width: 200px;
    margin-bottom: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    padding: 8px;
    background: var(--bg);
}

/* Test image preview */
.test-image-preview {
    max-width: 280px;
    max-height: 180px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin: 12px 0;
    object-fit: contain;
    background: var(--bg);
}

.answer-row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}

.answer-row .form-control {
    flex: 1;
}

.answer-row .correct-check {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.answer-row .btn-remove-answer {
    flex-shrink: 0;
}