/**
 * TMT - Target Mock Test
 * Main Stylesheet
 * 
 * यह फाइल पूरी Website का Main CSS है।
 * Modern, Clean, Professional, Lightweight Design
 * Mobile-First Approach
 * 
 * Table of Contents:
 * 1. CSS Variables & Root
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout
 * 5. Header
 * 6. Sidebar Menu
 * 7. Footer
 * 8. Home Page
 * 9. Tests Page
 * 10. Test Page
 * 11. Result Page
 * 12. Registration Page
 * 13. User Dashboard
 * 14. Buttons
 * 15. Cards
 * 16. Forms
 * 17. Tables
 * 18. Alerts & Notifications
 * 19. Modals
 * 20. Utilities
 * 21. Animations
 * 22. Print Styles
 */

/* ============================================
   1. CSS VARIABLES & ROOT
   ============================================ */
:root {
    /* Primary Colors */
    --primary-dark: #1a237e;
    --primary: #0d47a1;
    --primary-medium: #1976d2;
    --primary-light: #42a5f5;
    --primary-lighter: #bbdefb;
    --primary-lightest: #e3f2fd;
    
    /* Secondary Colors */
    --secondary: #ff6f00;
    --secondary-light: #ffa726;
    
    /* Success Colors */
    --success: #2e7d32;
    --success-light: #a5d6a7;
    --success-bg: #e8f5e9;
    
    /* Danger Colors */
    --danger: #c62828;
    --danger-light: #ef9a9a;
    --danger-bg: #ffebee;
    
    /* Warning Colors */
    --warning: #f57c00;
    --warning-light: #ffcc80;
    --warning-bg: #fff3e0;
    
    /* Info Colors */
    --info: #00695c;
    --info-light: #80cbc4;
    --info-bg: #e0f7fa;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    --black: #000000;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-overlay: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* Lists */
ul,
ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
}
h2 {
    font-size: var(--font-size-3xl);
}
h3 {
    font-size: var(--font-size-2xl);
}
h4 {
    font-size: var(--font-size-xl);
}
h5 {
    font-size: var(--font-size-lg);
}
h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
}

.text-center {
    text-align: center;
}
.text-left {
    text-align: left;
}
.text-right {
    text-align: right;
}

.text-muted {
    color: var(--gray-600);
}
.text-primary {
    color: var(--primary);
}
.text-success {
    color: var(--success);
}
.text-danger {
    color: var(--danger);
}
.text-warning {
    color: var(--warning);
}

/* ============================================
   4. LAYOUT
   ============================================ */
.main-content {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   5. HEADER
   ============================================ */
.tmt-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-md);
    border-bottom: 3px solid var(--primary-light);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 60px;
}

/* Left - Logo */
.header-left {
    flex-shrink: 0;
}

.header-logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.header-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    object-fit: contain;
    background: var(--white);
    padding: 4px;
    transition: transform var(--transition-fast);
}

.header-logo-link:hover .header-logo {
    transform: scale(1.05);
}

/* Center - Brand */
.header-center {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-sm);
}

.brand-link {
    text-decoration: none;
    display: inline-block;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
}

.brand-full {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-lighter);
    display: block;
    margin-top: -2px;
}

.brand-tagline {
    font-size: 0.6rem;
    color: var(--primary-lighter);
    font-weight: 400;
    letter-spacing: 0.5px;
    opacity: 0.9;
    margin-top: 1px;
    font-style: italic;
}

/* Right - Actions */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* Language Selector */
.header-language .language-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    color: var(--white);
}

.header-language .lang-label {
    display: none;
}

.header-language .lang-link {
    color: var(--primary-lighter);
    text-decoration: none;
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.header-language .lang-link:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.header-language .lang-link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
}

.header-language .lang-separator {
    color: var(--primary-lighter);
    opacity: 0.5;
}

/* User Menu */
.header-user {
    display: flex;
    align-items: center;
}

.header-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.header-btn-register {
    background: #00b2ff;
    color: #fff;
}

.header-btn-register:hover {
    background: var(--primary-lighter);
    color: var(--primary-dark);
    text-decoration: none;
    transform: translateY(-1px);
}

.header-btn-login {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.header-btn-login:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    text-decoration: none;
    transform: translateY(-1px);
}

/* User Avatar Dropdown */
.user-dropdown {
    position: relative;
}

.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.user-avatar-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--primary-light);
    color: var(--white);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.user-name-mobile {
    display: none;
    font-size: 0.8rem;
    font-weight: 500;
}

.user-dropdown-icon {
    font-size: 0.6rem;
    opacity: 0.7;
    margin-left: 2px;
}

/* User Dropdown Menu */
.user-dropdown-menu {
    position: absolute;
    top: 110%;
    right: 0;
    min-width: 220px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.user-dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-header {
    padding: 0.5rem 1rem;
}

.user-dropdown-name {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.9rem;
}

.user-dropdown-email {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.user-dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 0.25rem 0;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.5rem 1rem;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.user-dropdown-item:hover {
    background: var(--gray-100);
    color: var(--primary);
    text-decoration: none;
}

.user-dropdown-item i {
    width: 18px;
    text-align: center;
    font-size: 0.9rem;
}

.user-dropdown-item.logout-item {
    color: var(--danger);
}

.user-dropdown-item.logout-item:hover {
    background: var(--danger-bg);
}

/* Hamburger Button */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px 6px;
    gap: 3px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2.5px;
    background: var(--white);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.hamburger-label {
    font-size: 0.45rem;
    color: var(--primary-lighter);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ============================================
   6. SIDEBAR MENU
   ============================================ */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.sidebar-overlay.open {
    opacity: 1;
    visibility: visible;
}

.sidebar-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    max-width: 85vw;
    height: 100%;
    background: var(--white);
    z-index: calc(var(--z-overlay) + 1);
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.sidebar-menu.open {
    right: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    flex-shrink: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-logo {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--white);
    padding: 4px;
}

.sidebar-brand-name {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
}

.sidebar-close {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.sidebar-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav-item {
    list-style: none;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.6rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar-nav-link:hover {
    background: var(--gray-100);
    color: var(--primary);
    text-decoration: none;
    border-left-color: var(--primary-light);
}

.sidebar-nav-link.active {
    background: var(--primary-lightest);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.sidebar-nav-link i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* Sidebar Language */
.sidebar-language {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    margin: var(--spacing-sm) 0;
}

.sidebar-language-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-600);
    display: block;
    margin-bottom: 4px;
}

.sidebar-language-options {
    display: flex;
    gap: 8px;
    font-size: 0.9rem;
}

.sidebar-lang-link {
    color: var(--gray-600);
    text-decoration: none;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.sidebar-lang-link:hover {
    background: var(--gray-200);
    color: var(--gray-900);
    text-decoration: none;
}

.sidebar-lang-link.active {
    color: var(--white);
    background: var(--primary);
}

.sidebar-lang-separator {
    color: var(--gray-400);
}

/* Sidebar User */
.sidebar-user {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    margin-top: var(--spacing-sm);
}

.sidebar-user-info {
    margin-bottom: var(--spacing-sm);
}

.sidebar-user-name {
    display: block;
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.9rem;
}

.sidebar-user-email {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.sidebar-logout-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--danger-bg);
    color: var(--danger);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-logout-btn:hover {
    background: var(--danger);
    color: var(--white);
    text-decoration: none;
}

/* Sidebar Auth */
.sidebar-auth {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    margin-top: var(--spacing-sm);
}

.sidebar-auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-auth-btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

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

.sidebar-register-btn:hover {
    background: var(--primary-dark);
    color: var(--white);
}

.sidebar-login-btn {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.sidebar-login-btn:hover {
    background: var(--primary-lightest);
    color: var(--primary-dark);
}

/* Sidebar PWA */
.sidebar-pwa {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    margin-top: var(--spacing-sm);
}

.sidebar-pwa-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 8px 16px;
    background: var(--gray-900);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-pwa-btn:hover {
    background: var(--black);
    transform: translateY(-1px);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    margin-top: auto;
}

.sidebar-social {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: var(--spacing-sm);
}

.sidebar-social-link {
    color: var(--gray-600);
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.sidebar-social-link:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.sidebar-copyright {
    font-size: 0.65rem;
    color: var(--gray-500);
    text-align: center;
    line-height: 1.4;
}

/* ============================================
   7. FOOTER
   ============================================ */
.tmt-footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--spacing-sm);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--white);
    padding: 4px;
}

.footer-brand-name {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--gray-400);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--gray-500);
}

.footer-heading {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.5px;
}

.footer-link-list li {
    margin-bottom: 4px;
}

.footer-link-list a {
    color: var(--gray-400);
    font-size: 0.8rem;
    transition: color var(--transition-fast);
}

.footer-link-list a:hover {
    color: var(--white);
    text-decoration: none;
}

.footer-social-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    color: var(--gray-400);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.footer-social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    text-decoration: none;
}

.footer-pwa-btn {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 8px 16px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.footer-pwa-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.footer-back-top {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--primary);
    color: var(--white);
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
    z-index: var(--z-sticky);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.footer-back-top.visible {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.footer-back-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.footer-bottom {
    padding-top: var(--spacing-md);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.footer-version {
    font-size: 0.7rem;
    color: var(--gray-600);
}

.footer-version i {
    margin-right: 4px;
}

/* ============================================
   8. HOME PAGE
   ============================================ */
.home-hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: var(--spacing-2xl) var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--white);
    margin-bottom: var(--spacing-2xl);
}

.home-hero h1 {
    color: var(--white);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
}

.home-hero .tagline {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.home-hero .sub-text {
    font-size: var(--font-size-base);
    opacity: 0.8;
}

.exam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.exam-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.exam-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.exam-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: var(--spacing-md);
}

.exam-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-lightest);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    flex-shrink: 0;
}

.exam-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.exam-card-description {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.exam-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exam-card-tests {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.exam-card-btn {
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    font-size: 0.8rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.exam-card-btn:hover {
    background: var(--primary-dark);
    color: var(--white);
    text-decoration: none;
    transform: translateY(-1px);
}

/* ============================================
   9. TESTS PAGE
   ============================================ */
.tests-header {
    margin-bottom: var(--spacing-xl);
}

.tests-header h1 {
    font-size: var(--font-size-3xl);
    color: var(--gray-900);
}

.tests-header p {
    color: var(--gray-600);
    font-size: var(--font-size-lg);
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.test-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.test-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.test-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.test-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.test-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.test-card-meta i {
    font-size: 0.7rem;
    color: var(--gray-400);
}

.test-card-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.test-card-btn {
    flex: 1;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    text-align: center;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

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

.test-card-btn-start:hover {
    background: var(--primary-dark);
    color: var(--white);
    text-decoration: none;
}

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

.test-card-btn-resume:hover {
    background: #e65100;
    color: var(--white);
    text-decoration: none;
}

/* ============================================
   10. TEST PAGE
   ============================================ */
.test-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.test-header-bar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.test-header-bar .test-title {
    font-size: 1rem;
    font-weight: 600;
}

.test-header-bar .test-timer {
    font-size: 1.1rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.test-header-bar .test-timer.warning {
    background: var(--danger);
    animation: pulse 1s infinite;
}

.test-header-bar .test-timer.danger {
    background: var(--danger);
    animation: pulse 0.5s infinite;
}

.test-body {
    padding: var(--spacing-lg);
}

.test-question-section {
    margin-bottom: var(--spacing-lg);
}

.test-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.test-question-number {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-900);
}

.test-question-timer {
    font-weight: 600;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
}

.test-question-timer.success {
    color: var(--success);
}

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

.test-question-text {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-light);
}

.test-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.test-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--white);
}

.test-option:hover {
    border-color: var(--primary-light);
    background: var(--primary-lightest);
}

.test-option.selected {
    border-color: var(--primary);
    background: var(--primary-lightest);
}

.test-option.correct {
    border-color: var(--success);
    background: var(--success-bg);
}

.test-option.incorrect {
    border-color: var(--danger);
    background: var(--danger-bg);
}

.test-option input[type="radio"] {
    display: none;
}

.test-option .option-label {
    font-weight: 600;
    color: var(--gray-700);
    min-width: 24px;
}

.test-option .option-text {
    flex: 1;
    font-size: 0.95rem;
}

.test-option .option-icon {
    font-size: 1.1rem;
}

.test-option .option-icon.correct {
    color: var(--success);
}

.test-option .option-icon.incorrect {
    color: var(--danger);
}

.test-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

.test-nav-btn {
    padding: 8px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.test-nav-btn:hover {
    transform: translateY(-1px);
}

.test-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.test-nav-btn-prev {
    background: var(--gray-200);
    color: var(--gray-700);
}

.test-nav-btn-prev:hover:not(:disabled) {
    background: var(--gray-300);
}

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

.test-nav-btn-next:hover:not(:disabled) {
    background: var(--primary-dark);
}

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

.test-nav-btn-submit:hover:not(:disabled) {
    background: var(--success);
    filter: brightness(0.9);
}

.test-question-status {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin: var(--spacing-md) 0;
}

.test-status-dot {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.test-status-dot:hover {
    transform: scale(1.1);
}

.test-status-dot.answered {
    background: var(--success);
    border-color: var(--success);
    color: var(--white);
}

.test-status-dot.unanswered {
    background: var(--gray-200);
    border-color: var(--gray-400);
    color: var(--gray-600);
}

.test-status-dot.not-visited {
    background: var(--white);
    border-color: var(--gray-300);
    color: var(--gray-400);
}

.test-status-dot.review {
    background: var(--warning);
    border-color: var(--warning);
    color: var(--white);
}

.test-status-dot.current {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

/* ============================================
   11. RESULT PAGE
   ============================================ */
.result-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
}

.result-header {
    text-align: center;
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--gray-200);
}

.result-header .result-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.result-header .result-icon.passed {
    color: var(--success);
}

.result-header .result-icon.failed {
    color: var(--danger);
}

.result-header h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: 4px;
}

.result-header .result-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
}

.result-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.result-stat .stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--gray-900);
}

.result-stat .stat-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-stat .stat-value.correct {
    color: var(--success);
}

.result-stat .stat-value.incorrect {
    color: var(--danger);
}

.result-stat .stat-value.unattempted {
    color: var(--gray-500);
}

.result-percentage {
    text-align: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-lightest), var(--white));
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.result-percentage .percentage-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary);
}

.result-percentage .percentage-label {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
}

.result-message {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.result-message.success {
    background: var(--success-bg);
    color: var(--success);
}

.result-message.failure {
    background: var(--danger-bg);
    color: var(--danger);
}

.result-answer-review {
    margin-top: var(--spacing-xl);
}

.result-answer-review h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.result-question-review {
    padding: var(--spacing-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.result-question-review .q-text {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.result-question-review .q-options {
    padding-left: var(--spacing-md);
}

.result-question-review .q-option {
    padding: 2px 0;
    font-size: 0.9rem;
}

.result-question-review .q-option.correct {
    color: var(--success);
}

.result-question-review .q-option.incorrect {
    color: var(--danger);
}

.result-question-review .q-analysis {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    border-left: 3px solid var(--primary-light);
}

.result-share {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--gray-200);
}

.result-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--white);
    text-decoration: none;
}

.result-share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--white);
    text-decoration: none;
}

.result-share-btn.whatsapp {
    background: #25D366;
}
.result-share-btn.telegram {
    background: #0088cc;
}
.result-share-btn.facebook {
    background: #1877f2;
}
.result-share-btn.twitter {
    background: #000000;
}
.result-share-btn.sms {
    background: var(--gray-700);
}

/* ============================================
   12. REGISTRATION PAGE
   ============================================ */
.register-container {
    max-width: 560px;
    margin: var(--spacing-xl) auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
}

.register-container h1 {
    text-align: center;
    font-size: var(--font-size-2xl);
    margin-bottom: 4px;
}

.register-container .subtitle {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.register-form .form-group {
    margin-bottom: var(--spacing-md);
}

.register-form label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.register-form .form-control {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
    font-family: inherit;
}

.register-form .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

.register-form .form-control.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-bg);
}

.register-form .form-control.success {
    border-color: var(--success);
    box-shadow: 0 0 0 3px var(--success-bg);
}

.register-form .form-error {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 4px;
    display: none;
}

.register-form .form-error.show {
    display: block;
}

.register-form .checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: var(--spacing-sm);
}

.register-form .checkbox-group input[type="checkbox"] {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.register-form .checkbox-group label {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--gray-600);
}

.register-form .btn-submit {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.register-form .btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.register-form .btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.register-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

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

/* ============================================
   13. USER DASHBOARD
   ============================================ */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stat-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border: 1px solid var(--gray-200);
}

.dashboard-stat-card .stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary);
}

.dashboard-stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--gray-600);
}

/* ============================================
   14. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    text-decoration: none;
}

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

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

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

.btn-success:hover {
    background: var(--success);
    filter: brightness(0.9);
    color: var(--white);
}

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

.btn-danger:hover {
    background: var(--danger);
    filter: brightness(0.9);
    color: var(--white);
}

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

.btn-warning:hover {
    background: var(--warning);
    filter: brightness(0.9);
    color: var(--white);
}

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

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

.btn-sm {
    padding: 4px 12px;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 1.05rem;
}

/* ============================================
   15. CARDS
   ============================================ */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

/* ============================================
   16. FORMS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

.form-control.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-bg);
}

.form-control.success {
    border-color: var(--success);
    box-shadow: 0 0 0 3px var(--success-bg);
}

.form-text {
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-top: 4px;
}

.form-error {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 4px;
    display: none;
}

.form-error.show {
    display: block;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23616' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    padding-right: 36px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

/* ============================================
   17. TABLES
   ============================================ */
.table-responsive {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table-striped tbody tr:nth-child(odd) {
    background: var(--gray-50);
}

.table-bordered {
    border: 1px solid var(--gray-200);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--gray-200);
}

/* ============================================
   18. ALERTS & NOTIFICATIONS
   ============================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid transparent;
    font-size: 0.95rem;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border-left-color: var(--success);
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border-left-color: var(--danger);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border-left-color: var(--warning);
}

.alert-info {
    background: var(--info-bg);
    color: var(--info);
    border-left-color: var(--info);
}

.alert-dismissible {
    position: relative;
    padding-right: 48px;
}

.alert-dismissible .btn-close {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

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

/* ============================================
   19. MODALS
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-overlay.open {
    display: flex;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.3s ease;
}

.modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: var(--font-size-xl);
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-600);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--gray-900);
}

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

.modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ============================================
   20. UTILITIES
   ============================================ */
/* Spacing */
.m-0 {
    margin: 0;
}
.mt-1 {
    margin-top: var(--spacing-sm);
}
.mt-2 {
    margin-top: var(--spacing-md);
}
.mt-3 {
    margin-top: var(--spacing-lg);
}
.mb-1 {
    margin-bottom: var(--spacing-sm);
}
.mb-2 {
    margin-bottom: var(--spacing-md);
}
.mb-3 {
    margin-bottom: var(--spacing-lg);
}
.p-1 {
    padding: var(--spacing-sm);
}
.p-2 {
    padding: var(--spacing-md);
}
.p-3 {
    padding: var(--spacing-lg);
}

/* Text */
.text-center {
    text-align: center;
}
.text-left {
    text-align: left;
}
.text-right {
    text-align: right;
}
.text-uppercase {
    text-transform: uppercase;
}
.text-lowercase {
    text-transform: lowercase;
}
.text-capitalize {
    text-transform: capitalize;
}

/* Display */
.d-none {
    display: none;
}
.d-block {
    display: block;
}
.d-inline-block {
    display: inline-block;
}
.d-flex {
    display: flex;
}
.d-grid {
    display: grid;
}

/* Flex */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}
.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.flex-column {
    flex-direction: column;
}
.flex-wrap {
    flex-wrap: wrap;
}
.gap-1 {
    gap: var(--spacing-sm);
}
.gap-2 {
    gap: var(--spacing-md);
}
.gap-3 {
    gap: var(--spacing-lg);
}

/* Width */
.w-100 {
    width: 100%;
}
.w-50 {
    width: 50%;
}
.w-25 {
    width: 25%;
}

/* Border Radius */
.rounded {
    border-radius: var(--radius-md);
}
.rounded-full {
    border-radius: var(--radius-full);
}

/* Shadow */
.shadow-sm {
    box-shadow: var(--shadow-sm);
}
.shadow-md {
    box-shadow: var(--shadow-md);
}
.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* ============================================
   21. ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes modalIn {
    from {
        transform: scale(0.9) translateY(20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.4s ease;
}

.slide-in {
    animation: slideIn 0.3s ease;
}

/* ============================================
   22. PRINT STYLES
   ============================================ */
@media print {
    .tmt-header,
    .tmt-footer,
    .sidebar-menu,
    .sidebar-overlay,
    .hamburger-btn,
    .test-navigation,
    .result-share,
    .footer-back-top {
        display: none !important;
    }
    
    .main-content {
        padding: 0 !important;
        max-width: 100% !important;
    }
    
    .test-container,
    .result-container {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
    }
    
    .test-option {
        break-inside: avoid;
    }
    
    .result-question-review {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ============================================
   RESPONSIVE BREAKPOINTS (Mobile-First)
   See responsive.css for detailed responsive styles
   ============================================ */

/* End of style.css */