/* Modern Cyber Hygiene Design - Enhanced Version */

:root {
    /* Enhanced Color Palette */
    --primary: #00ff88;
    --primary-dark: #00cc6a;
    --primary-light: #66ffaa;
    --primary-glow: #00ff88;
    --secondary: #ff6b35;
    --accent: #4ecdc4;
    --success: #00ff88;
    --warning: #ffaa00;
    --error: #ff4757;
    
    /* Improved Background Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --bg-hover: #222222;
    --bg-glass: rgba(26, 26, 26, 0.8);
    
    /* Enhanced Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    --text-accent: #00ff88;
    
    /* Improved Gradients */
    --gradient-primary: linear-gradient(135deg, #00ff88 0%, #00cc6a 50%, #00aa55 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ff8a65 50%, #ff7043 100%);
    --gradient-accent: linear-gradient(135deg, #4ecdc4 0%, #44a08d 50%, #26a69a 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffb347 50%, #ffa000 100%);
    --gradient-glass: linear-gradient(135deg, rgba(0, 255, 136, 0.1) 0%, rgba(0, 204, 106, 0.05) 100%);
    
    /* Enhanced Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 255, 136, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 255, 136, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 255, 136, 0.2);
    --shadow-xl: 0 16px 64px rgba(0, 255, 136, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 255, 136, 0.3);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Enhanced Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 255, 136, 0.12) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 60%),
        radial-gradient(circle at 40% 40%, rgba(78, 205, 196, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 60% 60%, rgba(0, 255, 136, 0.05) 0%, transparent 40%);
    z-index: -1;
    animation: backgroundShift 25s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { 
        transform: translate(0, 0) scale(1) rotate(0deg); 
        opacity: 1;
    }
    25% { 
        transform: translate(-15px, -15px) scale(1.08) rotate(1deg); 
        opacity: 0.8;
    }
    50% { 
        transform: translate(15px, -8px) scale(1.05) rotate(-1deg); 
        opacity: 1;
    }
    75% { 
        transform: translate(-8px, 15px) scale(1.06) rotate(0.5deg); 
        opacity: 0.9;
    }
}

/* Additional floating particles */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(0, 255, 136, 0.3), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255, 107, 53, 0.2), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(78, 205, 196, 0.3), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(0, 255, 136, 0.2), transparent),
        radial-gradient(2px 2px at 160px 30px, rgba(255, 107, 53, 0.1), transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    z-index: -1;
    animation: float 20s linear infinite;
    opacity: 0.3;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    100% { transform: translateY(-100px) rotate(360deg); }
}

/* Enhanced Navigation */
.study-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(25px);
    border-bottom: 2px solid rgba(0, 255, 136, 0.3);
    padding: var(--space-sm) var(--space-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.study-navbar:hover {
    border-bottom-color: rgba(0, 255, 136, 0.5);
    box-shadow: var(--shadow-xl);
}

.study-navbar .logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.study-navbar .logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    transition: var(--transition-normal);
    z-index: -1;
}

.study-navbar .logo:hover::before {
    left: 0;
}

.study-navbar .logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.study-navbar .logo .material-icons {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.3));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    font-weight: 500;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
    transition: var(--transition-normal);
}

.nav-link:hover::before,
.nav-link.active::before {
    left: 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-link.active {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    box-shadow: var(--shadow-glow);
}

.nav-link .material-icons {
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.nav-link:hover .material-icons,
.nav-link.active .material-icons {
    transform: scale(1.1);
    filter: drop-shadow(0 0 5px rgba(0, 255, 136, 0.5));
}

/* Burger Menu */
.burger-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 25px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: var(--transition-normal);
}

.burger-line {
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition-normal);
    transform-origin: center;
}

.burger-menu-btn.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.burger-menu-btn.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation */
.mobile-nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 2px solid var(--primary);
    z-index: 1002;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.mobile-nav-menu.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
    background: rgba(0, 255, 136, 0.05);
}

.mobile-nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.mobile-nav-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
}

.mobile-nav-close:hover {
    background: rgba(0, 255, 136, 0.1);
    color: var(--primary);
}

.mobile-nav-links {
    flex: 1;
    padding: var(--space-sm) 0;
    overflow-y: auto;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-normal);
    border-right: 3px solid transparent;
    font-weight: 500;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: rgba(0, 255, 136, 0.1);
    color: var(--text-primary);
    border-right-color: var(--primary);
}

.mobile-nav-link.active {
    background: rgba(0, 255, 136, 0.15);
    border-right-color: var(--primary);
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

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

/* Mobile Navigation Footer */
.mobile-nav-footer {
    padding: var(--space-md);
    border-top: 1px solid rgba(0, 255, 136, 0.2);
    background: rgba(0, 255, 136, 0.05);
    margin-top: auto;
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: var(--transition-normal);
}

.mobile-user-info:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.mobile-user-avatar .material-icons {
    font-size: 1.5rem;
    color: var(--bg-primary);
}

.mobile-user-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-user-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.mobile-user-status {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 500;
    opacity: 0.9;
}

/* Main Content */
.study-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg);
    min-height: calc(100vh - 80px);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-xl);
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    text-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
    letter-spacing: -0.02em;
}

.page-title::before {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gradient-secondary);
    border-radius: 1px;
    opacity: 0.7;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    margin-bottom: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.back-link:hover {
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    transform: translateX(-5px);
}

/* Module Cards */
.roadmap-container {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    grid-template-columns: 1fr;
}

.roadmap-step {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.15);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.roadmap-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.roadmap-step:hover::before {
    transform: scaleX(1);
}

.roadmap-step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(0, 255, 136, 0.3);
    background: var(--bg-card);
}

.roadmap-step::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.roadmap-step:hover::after {
    opacity: 1;
}

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
    gap: var(--space-md);
    flex-wrap: wrap;
}

.step-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
    min-width: 0;
    margin-right: var(--space-sm);
}

.step-progress {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(5px);
    transition: var(--transition-normal);
    white-space: nowrap;
    flex-shrink: 0;
    min-width: fit-content;
}

.step-progress:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.3);
    transform: scale(1.05);
}

.step-description {
    margin-bottom: var(--space-md);
}

.step-description p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-hover);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    position: relative;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 1.5s infinite;
}

.progress-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.step-actions {
    display: flex;
    gap: var(--space-sm);
}

.step-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    font-size: 1rem;
}

.step-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.step-btn:hover::before {
    left: 100%;
}

.step-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
}

.step-btn .material-icons {
    font-size: 1.2rem;
}

/* Certificate Button */
.certificate-btn {
    background: var(--gradient-gold) !important;
    color: var(--bg-primary) !important;
}

.certificate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
}

/* Status Badges - Only for topic cards */
.active-badge {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
    min-width: fit-content;
    transition: var(--transition-normal);
    background: rgba(255, 170, 0, 0.15);
    color: var(--warning);
    border: 1px solid rgba(255, 170, 0, 0.3);
    animation: activeGlow 2s ease-in-out infinite alternate;
}

@keyframes activeGlow {
    0% { 
        box-shadow: 0 0 10px rgba(255, 170, 0, 0.3);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 25px rgba(255, 170, 0, 0.6);
        transform: scale(1.05);
    }
    100% { 
        box-shadow: 0 0 10px rgba(255, 170, 0, 0.3);
        transform: scale(1);
    }
}

/* Certificate Badge */
.certificate-badge {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--gradient-gold);
    color: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: var(--space-sm);
}

.certificate-badge .material-icons {
    font-size: 1rem;
}

/* === Certificate Page Styles === */
.certificate-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: var(--space-2xl);
}

/* Certificate Info Section */
.certificate-info-section {
    margin-bottom: var(--space-2xl);
}

.info-card {
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.info-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.info-header .material-icons {
    font-size: 2.5rem;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
}

.info-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.info-content {
    display: grid;
    gap: var(--space-2xl);
}

.info-item h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.info-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
    font-size: 1.05rem;
}

.info-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--space-sm);
}

.info-item li {
    padding: var(--space-md);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.1);
    color: var(--text-secondary);
    line-height: 1.6;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.info-item li::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.info-item li:hover::before {
    opacity: 1;
}

.info-item li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 255, 136, 0.2);
}

.info-item li strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* Overall Progress Section */
.overall-progress-section {
    margin-bottom: var(--space-2xl);
}

.progress-card {
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: hidden;
}

.progress-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.progress-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.progress-header .material-icons {
    font-size: 2.5rem;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    padding: var(--space-sm);
    border-radius: var(--radius-lg);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
}

.progress-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.progress-text {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.1);
    margin-top: var(--space-lg);
}

/* Certificate Section */
.certificate-section {
    margin-bottom: var(--space-2xl);
}

.certificate-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(0, 255, 136, 0.2);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
    transform: scaleX(1);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.6);
}

.certificate-card.incomplete::before {
    background: var(--gradient-secondary);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.6);
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(0, 255, 136, 0.2);
}

.certificate-header {
    margin-bottom: var(--space-2xl);
}

.certificate-icon {
    margin-bottom: var(--space-lg);
}

.certificate-icon .material-icons {
    font-size: 5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 255, 136, 0.5));
}

.certificate-card.incomplete .certificate-icon .material-icons {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(255, 107, 53, 0.5));
}

.certificate-info h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    text-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
    letter-spacing: -0.02em;
}

.certificate-info p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

.certificate-details {
    display: grid;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(0, 255, 136, 0.1);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.detail-row::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.detail-row:hover::before {
    opacity: 1;
}

.detail-row:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 255, 136, 0.2);
}

.detail-label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1rem;
}

.detail-value {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.certificate-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.download-btn,
.generate-btn,
.continue-btn,
.progress-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-2xl);
    background: var(--gradient-primary);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    justify-content: center;
}

.download-btn::before,
.generate-btn::before,
.continue-btn::before,
.progress-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.download-btn:hover::before,
.generate-btn:hover::before,
.continue-btn:hover::before,
.progress-btn:hover::before {
    left: 100%;
}

.download-btn:hover,
.generate-btn:hover,
.continue-btn:hover,
.progress-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    filter: brightness(1.1);
}

.generate-btn {
    background: var(--gradient-gold);
}

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

.progress-btn {
    background: var(--gradient-accent);
}

.download-btn .material-icons,
.generate-btn .material-icons,
.continue-btn .material-icons,
.progress-btn .material-icons {
    font-size: 1.3rem;
}

/* Incomplete Certificate Card */
.certificate-card.incomplete {
    border-color: rgba(255, 170, 0, 0.3);
}

.certificate-card.incomplete:hover {
    box-shadow: var(--shadow-xl), 0 0 40px rgba(255, 170, 0, 0.2);
}

/* Responsive Design for Certificate Page */
@media (max-width: 768px) {
    .certificate-container {
        gap: var(--space-xl);
    }
    
    .info-card,
    .progress-card,
    .certificate-card {
        padding: var(--space-xl);
    }
    
    .info-header h3,
    .progress-header h3 {
        font-size: 1.5rem;
    }
    
    .certificate-info h3 {
        font-size: 2rem;
    }
    
    .certificate-details {
        grid-template-columns: 1fr;
    }
    
    .detail-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
        text-align: left;
    }
    
    .certificate-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .download-btn,
    .generate-btn,
    .continue-btn,
    .progress-btn {
        min-width: auto;
        width: 100%;
        max-width: 300px;
    }
    
    .progress-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .certificate-card {
        padding: var(--space-lg);
    }
    
    .certificate-info h3 {
        font-size: 1.8rem;
    }
    
    .certificate-icon .material-icons {
        font-size: 4rem;
    }
    
    .info-header .material-icons,
    .progress-header .material-icons {
        font-size: 2rem;
    }
    
    .info-item h4 {
        font-size: 1.1rem;
    }
    
    .info-item p {
        font-size: 1rem;
    }
    
    .info-item li {
        padding: var(--space-sm);
    }
}

/* Debug styles for troubleshooting */
.debug-info {
    background: rgba(255, 0, 0, 0.1);
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    font-size: 12px;
    color: var(--text-primary);
    border: 1px solid rgba(255, 0, 0, 0.3);
}

/* Enhanced progress bar styles */
.progress-bar {
    width: 100%;
    height: 20px;
    background: var(--bg-hover);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-lg);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    border: 2px solid rgba(0, 255, 136, 0.2);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    position: relative;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.4);
    min-width: 0%;
    max-width: 100%;
    display: block;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 1.5s infinite;
}

.progress-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

/* Ensure progress text is visible */
.progress-text {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.1);
    margin-top: var(--space-lg);
    box-shadow: var(--shadow-md);
}

/* Enhanced progress bar for certificate page */
.overall-progress-section .progress-bar {
    height: 24px;
    background: var(--bg-card);
    border: 2px solid rgba(0, 255, 136, 0.3);
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.4);
    position: relative;
}

.overall-progress-section .progress-fill {
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    border-radius: var(--radius-lg);
}

.overall-progress-section .progress-fill::after {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

/* Progress bar hover effects */
.overall-progress-section .progress-bar:hover {
    border-color: rgba(0, 255, 136, 0.5);
    box-shadow: inset 0 3px 6px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 255, 136, 0.2);
}

.overall-progress-section .progress-bar:hover .progress-fill {
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.7);
    transform: scaleY(1.1);
}

/* Progress stats enhancement */
.overall-progress-section .stat-item {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 255, 136, 0.2);
    box-shadow: var(--shadow-lg);
}

.overall-progress-section .stat-item:hover {
    border-color: rgba(0, 255, 136, 0.4);
    box-shadow: var(--shadow-xl);
    transform: translateY(-3px);
}

.overall-progress-section .stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 255, 136, 0.5);
}

/* Progress percentage display */
.progress-percentage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--bg-primary);
    font-weight: 800;
    font-size: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
    z-index: 10;
    pointer-events: none;
    letter-spacing: 0.5px;
}

/* Ensure progress bar has relative positioning for percentage */
.overall-progress-section .progress-bar {
    position: relative;
}

/* Progress bar pulse animation */
.overall-progress-section .progress-fill {
    animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.8);
    }
}

/* Completion celebration effect */
.overall-progress-section .progress-fill[style*="width: 100%"] {
    animation: completionCelebration 3s ease-in-out infinite;
}

@keyframes completionCelebration {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
        transform: scaleY(1);
    }
    25% {
        box-shadow: 0 0 40px rgba(0, 255, 136, 0.9);
        transform: scaleY(1.1);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.7);
        transform: scaleY(1.05);
    }
    75% {
        box-shadow: 0 0 35px rgba(0, 255, 136, 0.8);
        transform: scaleY(1.08);
    }
}

/* Completed State */
.roadmap-step.completed {
    border-color: rgba(0, 255, 136, 0.3);
}

.roadmap-step.completed .step-progress-bar .progress-fill {
    background: var(--gradient-primary);
}

.roadmap-step.completed .step-progress {
    opacity: 0.8;
    transform: scale(0.95);
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.4);
    color: var(--success);
    font-weight: 700;
}

.step-progress.completed-text {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 204, 106, 0.15));
    color: var(--success);
    border-color: rgba(0, 255, 136, 0.4);
    font-weight: 700;
    animation: completionPulse 3s ease-in-out infinite;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
}

@keyframes completionPulse {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.4);
        transform: scale(1.02);
    }
}

.roadmap-step.completed .step-btn {
    background: var(--bg-hover);
    color: var(--text-secondary);
    cursor: default;
}

.roadmap-step.completed .step-btn:hover {
    transform: none;
    box-shadow: none;
}

/* Active State */
.roadmap-step.active {
    border-color: rgba(255, 170, 0, 0.3);
    box-shadow: 0 0 30px rgba(255, 170, 0, 0.1);
}

.roadmap-step.active .step-btn {
    background: var(--gradient-secondary);
}

/* Empty State */
.empty-roadmap {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px dashed rgba(0, 255, 136, 0.2);
}

.empty-icon {
    margin-bottom: var(--space-md);
}

.empty-icon .material-icons {
    font-size: 4rem;
    color: var(--text-muted);
}

.empty-roadmap h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.empty-roadmap p {
    color: var(--text-secondary);
}

/* Progress Summary */
.roadmap-summary {
    margin-top: var(--space-2xl);
}

.summary-card {
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.summary-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.summary-header .material-icons {
    font-size: 2rem;
    color: var(--primary);
}

.summary-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
}

.stat-item {
    text-align: center;
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
    border: 1px solid rgba(0, 255, 136, 0.1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 255, 136, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
    position: relative;
    z-index: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Topic Progress */
.topic-progress {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: visible;
    transition: var(--transition-normal);
    width: 100%;
    box-sizing: border-box;
}

.topic-progress:hover {
    border-color: rgba(0, 255, 136, 0.3);
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

/* Progress Percentage Display */
.progress-percentage {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 255, 136, 0.2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80px;
    min-width: fit-content;
    text-align: center;
}

/* Badge Styles for Topics */
.completion-badge,
.active-badge {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
    min-width: fit-content;
    transition: var(--transition-normal);
}

.completion-badge {
    background: rgba(0, 255, 136, 0.15);
    color: var(--success);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.completion-badge:hover {
    background: rgba(0, 255, 136, 0.2);
    border-color: rgba(0, 255, 136, 0.4);
    transform: scale(1.05);
}

.active-badge {
    background: rgba(255, 170, 0, 0.15);
    color: var(--warning);
    border: 1px solid rgba(255, 170, 0, 0.3);
    animation: activeGlow 2s ease-in-out infinite alternate;
}

.active-badge:hover {
    background: rgba(255, 170, 0, 0.2);
    border-color: rgba(255, 170, 0, 0.4);
    transform: scale(1.05);
}

.topic-progress::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    gap: var(--space-md);
    flex-wrap: wrap;
    width: 100%;
    box-sizing: border-box;
}

.progress-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    min-width: 0;
    margin: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.progress-percentage {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 255, 136, 0.2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: fit-content;
    max-width: 120px;
    text-align: center;
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.progress-percentage:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.3);
    transform: scale(1.05);
}

/* Ensure progress header stays within container */
.topic-progress .progress-header {
    position: relative;
    z-index: 1;
}

/* Prevent text overflow in progress header */
.progress-header h3 {
    hyphens: auto;
    -webkit-hyphens: auto;
    -ms-hyphens: auto;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-hover);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-sm);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    transition: var(--transition-normal);
}

.progress-bar:hover {
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 255, 136, 0.2);
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 2s infinite;
}

.progress-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
    font-weight: 500;
    margin-top: var(--space-xs);
}

/* Topic Parts */
.topic-part {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.15);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.topic-part::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.topic-part:hover::after {
    opacity: 1;
}

.topic-part::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.topic-part:hover::before {
    transform: scaleX(1);
}

.topic-part:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(0, 255, 136, 0.3);
    background: var(--bg-card);
}

.part-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.part-title .material-icons {
    font-size: 1.8rem;
    color: var(--primary);
    background: rgba(0, 255, 136, 0.15);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.2);
    transition: var(--transition-normal);
}

.part-title:hover .material-icons {
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(0, 255, 136, 0.4);
}

/* Completion Status */
.completion-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 255, 136, 0.15);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    color: var(--success);
    font-weight: 600;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
    position: relative;
    z-index: 1;
}

.score-info {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xs);
    font-size: 0.9rem;
}

.score-text {
    color: var(--success);
}

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

/* Video Container */
.video-container {
    margin: var(--space-lg) 0;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-hover);
    position: relative;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.video-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border: 3px solid var(--primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: rotate 1s linear infinite;
    z-index: 1;
}

@keyframes rotate {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.video-container iframe,
.video-container video {
    width: 100%;
    height: 400px;
    border: none;
    display: block;
}

.video-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.video-loading .material-icons {
    margin-right: var(--space-sm);
    animation: spin 1s linear infinite;
}

.video-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--error);
    text-align: center;
    padding: var(--space-lg);
}

.video-error a {
    color: var(--primary);
    text-decoration: none;
    margin-left: var(--space-xs);
}

.video-error a:hover {
    text-decoration: underline;
}

.video-link {
    text-align: center;
    padding: var(--space-xl);
}

.video-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--gradient-primary);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.video-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.video-btn:hover::before {
    opacity: 1;
}

.video-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.video-description {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-hover);
    border-radius: var(--radius-md);
}

.video-description h3 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

/* Video Completion Button */
.video-completion {
    margin-top: var(--space-md);
    text-align: center;
}

.mark-video-completed {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.mark-video-completed::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-accent);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.mark-video-completed:hover::before {
    opacity: 1;
}

.mark-video-completed:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mark-video-completed:disabled {
    background: var(--bg-hover);
    color: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Markdown Content */
.markdown-body {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.15);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-md) 0;
    font-weight: 700;
}

.markdown-body h1 { font-size: 2rem; }
.markdown-body h2 { font-size: 1.8rem; }
.markdown-body h3 { font-size: 1.5rem; }

.markdown-body p {
    margin-bottom: var(--space-md);
}

.markdown-body ul,
.markdown-body ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-lg);
}

.markdown-body li {
    margin-bottom: var(--space-xs);
}

.markdown-body code {
    background: var(--bg-hover);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
}

.markdown-body pre {
    background: var(--bg-hover);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-md) 0;
    border: 1px solid rgba(0, 255, 136, 0.1);
}

.markdown-body pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.markdown-body blockquote {
    border-left: 4px solid var(--primary);
    padding-left: var(--space-md);
    margin: var(--space-md) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-body a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: var(--transition-normal);
}

.markdown-body a:hover {
    border-bottom-color: var(--primary);
}

/* Table styles for markdown */
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 255, 136, 0.15);
}

.markdown-body table thead {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 255, 136, 0.05));
}

.markdown-body table th {
    background: rgba(0, 255, 136, 0.1);
    color: var(--text-primary);
    font-weight: 700;
    padding: var(--space-md);
    text-align: left;
    border-bottom: 2px solid rgba(0, 255, 136, 0.2);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.markdown-body table td {
    padding: var(--space-md);
    border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.markdown-body table tbody tr {
    transition: var(--transition-normal);
}

.markdown-body table tbody tr:hover {
    background: rgba(0, 255, 136, 0.05);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 255, 136, 0.1);
}

.markdown-body table tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive table */
@media (max-width: 768px) {
    .markdown-body table {
        font-size: 0.9rem;
    }
    
    .markdown-body table th,
    .markdown-body table td {
        padding: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .markdown-body table {
        font-size: 0.8rem;
    }
    
    .markdown-body table th,
    .markdown-body table td {
        padding: var(--space-xs);
    }
}

/* Mermaid diagram styles */
.markdown-body .mermaid {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
    border: 1px solid rgba(0, 255, 136, 0.15);
    box-shadow: var(--shadow-md);
    text-align: center;
    overflow-x: auto;
}

.markdown-body .mermaid svg {
    max-width: 100%;
    height: auto;
    background: transparent;
}

/* Mermaid dark theme customization */
.markdown-body .mermaid .node rect,
.markdown-body .mermaid .node circle,
.markdown-body .mermaid .node ellipse,
.markdown-body .mermaid .node polygon {
    fill: rgba(0, 255, 136, 0.1) !important;
    stroke: rgba(0, 255, 136, 0.5) !important;
}

.markdown-body .mermaid .edgePath .path {
    stroke: rgba(0, 255, 136, 0.7) !important;
}

.markdown-body .mermaid .arrowheadPath {
    fill: rgba(0, 255, 136, 0.7) !important;
}

.markdown-body .mermaid .label {
    color: var(--text-primary) !important;
    font-family: 'Share Tech Mono', monospace !important;
}

.markdown-body .mermaid .cluster rect {
    fill: rgba(0, 255, 136, 0.05) !important;
    stroke: rgba(0, 255, 136, 0.3) !important;
}

.markdown-body .mermaid .cluster .label {
    color: var(--text-secondary) !important;
}

/* Quiz Components */
.quiz-form {
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: hidden;
}

.quiz-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.quiz-content, .exam-content {
    margin-bottom: var(--space-lg);
}

.quiz-description, .exam-description {
    margin-bottom: var(--space-md);
}

.quiz-description h3, .exam-description h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.quiz-actions, .exam-actions {
    text-align: center;
    margin-top: var(--space-lg);
}

.quiz-note, .exam-note {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: var(--space-sm);
}

.mark-quiz-completed, .mark-exam-completed {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--gradient-accent);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.mark-quiz-completed:hover, .mark-exam-completed:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mark-quiz-completed:disabled, .mark-exam-completed:disabled {
    background: var(--bg-hover);
    color: var(--text-muted);
    cursor: not-allowed;
}

.question-block {
    background: var(--bg-hover);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(0, 255, 136, 0.1);
    transition: var(--transition-normal);
    position: relative;
}

.question-block:hover {
    border-color: rgba(0, 255, 136, 0.2);
    box-shadow: var(--shadow-sm);
}

.question-block.answered {
    border-color: rgba(0, 255, 136, 0.3);
    background: rgba(0, 255, 136, 0.05);
}

.question-block.answered::after {
    content: '✓';
    position: absolute;
    top: var(--space-xs);
    right: var(--space-xs);
    color: var(--success);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Quiz Progress Indicator */
.quiz-progress {
    position: sticky;
    top: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    border: 1px solid rgba(0, 255, 136, 0.2);
    z-index: 10;
}

.question {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.quiz-form label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    margin-bottom: var(--space-xs);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-normal);
    background: var(--bg-card);
    border: 1px solid transparent;
}

.quiz-form label:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: rgba(0, 255, 136, 0.2);
}

.quiz-form input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.submit-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-primary);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
}

.quiz-result {
    text-align: center;
    padding: var(--space-xl);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.perfect-score {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--success);
    margin-bottom: var(--space-md);
}

/* Navigation Buttons */
.topic-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.15);
    transition: var(--transition-normal);
    font-weight: 500;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
}

.nav-btn:hover::before {
    opacity: 1;
}

.nav-btn:hover {
    color: var(--primary);
    border-color: rgba(0, 255, 136, 0.3);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.prev-btn {
    margin-right: auto;
}

.next-btn {
    margin-left: auto;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .study-main {
        padding: var(--space-md);
    }
    
    .summary-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .topic-navigation {
        flex-direction: column;
    }
    
    .nav-btn {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .study-navbar {
        padding: var(--space-sm);
    }
    
    .nav-links {
        display: none;
    }
    
    .burger-menu-btn {
        display: flex;
    }
    
    .study-main {
        padding: var(--space-sm);
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .roadmap-step,
    .topic-part {
        padding: var(--space-md);
    }
    
    .step-header,
    .progress-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .step-progress {
        font-size: 1rem;
        padding: var(--space-xs);
        max-width: 80px;
        min-width: 60px;
    }
    
    .step-progress.completed-text {
        font-size: 0.9rem;
        max-width: 70px;
    }
    
    .step-header h3,
    .part-title {
        font-size: 1.3rem;
    }
    
    .summary-stats {
        grid-template-columns: 1fr;
    }
    
    .step-actions {
        flex-direction: column;
    }
    
    .step-btn {
        justify-content: center;
    }
    
    .video-container iframe,
    .video-container video {
        height: 250px;
    }
    
    .video-loading {
        height: 250px;
    }
    
    .markdown-body h1 { font-size: 1.6rem; }
    .markdown-body h2 { font-size: 1.4rem; }
    .markdown-body h3 { font-size: 1.2rem; }
    
    /* Quiz improvements for mobile */
    .quiz-form {
        padding: var(--space-md);
    }
    
    .quiz-header {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .question-block {
        padding: var(--space-sm);
    }
    
    .question {
        font-size: 1rem;
    }
    
    .quiz-form label {
        padding: var(--space-sm);
        font-size: 0.95rem;
    }
    
    .submit-btn {
        width: 100%;
        padding: var(--space-md);
    }
    
    .quiz-progress {
        position: relative;
        top: auto;
        margin-bottom: var(--space-md);
    }
    
    /* Topic Progress Mobile Improvements */
    .topic-progress {
        padding: var(--space-lg);
        margin-bottom: var(--space-lg);
        overflow: visible;
    }
    
    .progress-header {
        gap: var(--space-sm);
    }
    
    .progress-header h3 {
        font-size: 1.2rem;
        flex: 1;
        min-width: 0;
    }
    
    .progress-percentage {
        font-size: 1.3rem;
        padding: var(--space-xs) var(--space-sm);
        max-width: 100px;
    }
    
    .progress-bar {
        height: 10px;
    }
    
    .topic-progress-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .mini-progress {
        width: 100%;
        min-width: auto;
    }
    
    .topic-progress-info .progress-text {
        align-self: flex-end;
        font-size: 0.85rem;
        padding: var(--space-xs);
    }
}

@media (max-width: 480px) {
    .mobile-nav-menu {
        width: 100%;
        right: -100%;
    }
    
    .mobile-nav-footer {
        padding: var(--space-sm);
    }
    
    .mobile-user-info {
        padding: var(--space-xs);
    }
    
    .mobile-user-avatar {
        width: 35px;
        height: 35px;
    }
    
    .mobile-user-avatar .material-icons {
        font-size: 1.3rem;
    }
    
    .mobile-user-name {
        font-size: 0.9rem;
    }
    
    .mobile-user-status {
        font-size: 0.75rem;
    }
    
    .study-main {
        padding: var(--space-xs);
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .roadmap-step,
    .topic-part {
        padding: var(--space-sm);
    }
    
    .step-header h3,
    .part-title {
        font-size: 1.2rem;
    }
    
    .step-btn,
    .video-btn,
    .submit-btn {
        padding: var(--space-sm);
        font-size: 0.9rem;
    }
    
    .active-badge {
        justify-content: center;
        margin-top: var(--space-sm);
    }
    
    .step-progress {
        font-size: 0.9rem;
        padding: var(--space-xs);
        max-width: 70px;
        min-width: 50px;
    }
    
    .step-progress.completed-text {
        font-size: 0.8rem;
        max-width: 60px;
    }
    
    .video-container iframe,
    .video-container video {
        height: 200px;
    }
    
    .video-loading {
        height: 200px;
    }
    
    .markdown-body h1 { font-size: 1.4rem; }
    .markdown-body h2 { font-size: 1.3rem; }
    .markdown-body h3 { font-size: 1.1rem; }
    
    .summary-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: var(--space-sm);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    /* Topic Progress Small Screen Improvements */
    .topic-progress {
        padding: var(--space-md);
        margin-bottom: var(--space-md);
        overflow: visible;
    }
    
    .progress-header {
        gap: var(--space-xs);
        flex-direction: column;
        align-items: flex-start;
    }
    
    .progress-header h3 {
        font-size: 1.1rem;
        width: 100%;
        margin-bottom: var(--space-xs);
    }
    
    .progress-percentage {
        font-size: 1.2rem;
        padding: var(--space-xs);
        max-width: 80px;
        align-self: flex-end;
    }
    
    .progress-bar {
        height: 8px;
    }
    
    .progress-text {
        font-size: 0.8rem;
    }
    
    .topic-progress-info .progress-text {
        font-size: 0.8rem;
        padding: var(--space-xs);
    }
}

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

/* Focus States */
button:focus,
a:focus,
input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    border: 2px solid var(--bg-hover);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-secondary);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

/* Selection */
::selection {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    text-shadow: none;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--bg-hover);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

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

/* Rotating Animation */
.rotating {
    animation: rotate 1s linear infinite;
}

/* Enhanced focus styles for accessibility */
.nav-link:focus,
.mobile-nav-link:focus,
.step-btn:focus,
.topic-btn:focus,
.module-btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* Improved hover states for touch devices */
@media (hover: none) and (pointer: coarse) {
    .step-card:hover,
    .topic-card:hover,
    .module-progress-card:hover {
        transform: none;
    }
    
    .step-btn:hover,
    .topic-btn:hover,
    .module-btn:hover {
        transform: none;
    }
}

/* Print styles */
@media print {
    .study-navbar,
    .mobile-nav-menu,
    .mobile-nav-overlay,
    .burger-menu-btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .step-card,
    .topic-card,
    .module-progress-card {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
        break-inside: avoid;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary: #00ff00;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --bg-card: #000000;
        --bg-hover: #111111;
    }
}

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

/* AdSense Styles for Cyber Hygiene */
.adsense-container {
    margin: var(--space-lg) 0;
    padding: var(--space-md);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 255, 136, 0.1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.adsense-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.05), transparent);
    animation: adShimmer 3s infinite;
}

@keyframes adShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.adsense-container:hover {
    border-color: rgba(0, 255, 136, 0.2);
    box-shadow: var(--shadow-md);
}

.adsense-label {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 255, 136, 0.1);
    color: var(--text-accent);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    z-index: 1;
}

/* Responsive AdSense */
@media (max-width: 768px) {
    .adsense-container {
        margin: var(--space-md) 0;
        padding: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .adsense-container {
        margin: var(--space-sm) 0;
        padding: var(--space-xs);
    }
    
    .adsense-label {
        font-size: 0.7rem;
        padding: 2px 6px;
    }
}