/* Material 3 Design System - Red & White Theme */
:root {
    /* Primary Colors - Red Theme */
    --primary: #D32F2F;
    --primary-variant: #B71C1C;
    --primary-light: #FF5252;
    --primary-container: #FFEBEE;
    
    /* Secondary Colors */
    --secondary: #C62828;
    --secondary-variant: #8E0000;
    --secondary-container: #FFE0E0;
    
    /* Surface Colors */
    --surface: #FFFFFF;
    --surface-variant: #FAFAFA;
    --surface-container: #F5F5F5;
    --surface-container-high: #EEEEEE;
    
    /* Background Colors */
    --background: #FFFFFF;
    --background-secondary: #FAFAFA;
    
    /* Text Colors */
    --on-primary: #FFFFFF;
    --on-secondary: #FFFFFF;
    --on-surface: #1C1B1F;
    --on-surface-variant: #49454F;
    --on-background: #1C1B1F;
    
    /* Accent Colors */
    --accent: #FF1744;
    --accent-light: #FF8A80;
    --success: #4CAF50;
    --warning: #FF9800;
    --error: #F44336;
    
    /* Elevation */
    --elevation-1: 0 1px 3px rgba(0,0,0,0.12);
    --elevation-2: 0 2px 6px rgba(0,0,0,0.16);
    --elevation-3: 0 4px 12px rgba(0,0,0,0.16);
    --elevation-4: 0 8px 24px rgba(0,0,0,0.16);
    
    /* Typography Scale */
    --display-large: 3.5rem;
    --display-medium: 2.8rem;
    --display-small: 2.25rem;
    --headline-large: 2rem;
    --headline-medium: 1.75rem;
    --headline-small: 1.5rem;
    --title-large: 1.375rem;
    --title-medium: 1.125rem;
    --title-small: 0.875rem;
    --body-large: 1rem;
    --body-medium: 0.875rem;
    --body-small: 0.75rem;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--on-background);
    background-color: var(--background);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    box-shadow: var(--elevation-2);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary);
    text-decoration: none;
}

.nav-brand .material-icons {
    font-size: 2rem;
}

.nav-brand h1 {
    font-size: var(--title-large);
    font-weight: 500;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-menu a {
    text-decoration: none;
    color: var(--on-surface-variant);
    font-weight: 500;
    font-size: var(--body-medium);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary);
    background: var(--primary-container);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--primary);
    transition: transform var(--transition-fast);
}

.nav-menu a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--on-surface);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--space-3xl);
    background: linear-gradient(135deg, var(--primary-container) 0%, var(--surface) 50%, var(--secondary-container) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(211, 47, 47, 0.1) 0%, transparent 70%);
    transform: rotate(15deg);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: var(--display-medium);
    font-weight: 400;
    color: var(--on-background);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--body-large);
    color: var(--on-surface-variant);
    margin-bottom: var(--space-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.stat-card {
    text-align: center;
    padding: var(--space-lg);
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    min-width: 120px;
}

.stat-card h3 {
    font-size: var(--headline-medium);
    color: var(--primary);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.stat-card p {
    color: var(--on-surface-variant);
    font-size: var(--body-medium);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--body-medium);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.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: left var(--transition-normal);
}

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

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    box-shadow: var(--elevation-2);
}

.btn-primary:hover {
    background: var(--primary-variant);
    box-shadow: var(--elevation-3);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--primary-container);
    transform: translateY(-1px);
}

/* Sections */
.section {
    padding: var(--space-3xl) 0;
}

.section-alt {
    background: var(--background-secondary);
}

.section-title {
    font-size: var(--display-small);
    font-weight: 400;
    color: var(--on-background);
    text-align: center;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--body-large);
    color: var(--on-surface-variant);
    text-align: center;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Pathway Cards */
.pathway-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.pathway-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.pathway-card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-variant) 100%);
    color: var(--on-primary);
    position: relative;
}

.card-header .material-icons {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.card-header h3 {
    font-size: var(--headline-small);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--on-primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--body-small);
    font-weight: 500;
}

.badge.prestige {
    background: var(--accent);
}

.badge.premium {
    background: var(--success);
}

.card-content {
    padding: var(--space-lg);
}

.card-content h4 {
    font-size: var(--title-medium);
    color: var(--on-surface);
    margin: var(--space-lg) 0 var(--space-sm);
    font-weight: 500;
}

.card-content h4:first-child {
    margin-top: 0;
}

.card-content ul {
    list-style: none;
    margin-bottom: var(--space-md);
}

.card-content li {
    padding: var(--space-xs) 0;
    color: var(--on-surface-variant);
    position: relative;
    padding-left: var(--space-md);
}

.card-content li::before {
    content: '•';
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.card-content strong {
    color: var(--on-surface);
    font-weight: 500;
}

/* MBA Section */
.mba-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-xl);
}

.mba-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.mba-card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
}

/* Exam Cards */
.exam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.exam-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.exam-card:hover {
    box-shadow: var(--elevation-3);
    transform: translateY(-4px);
}

/* Strategy Section */
.strategy-section {
    margin-bottom: var(--space-3xl);
}

.strategy-section h3 {
    font-size: var(--headline-medium);
    color: var(--on-background);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.rule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.rule-card {
    background: var(--surface);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    border-left: 4px solid var(--primary);
}

.rule-card h4 {
    color: var(--primary);
    font-size: var(--title-medium);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

/* Timeline */
.timeline-section {
    margin-bottom: var(--space-3xl);
}

.timeline-section h3 {
    font-size: var(--headline-medium);
    color: var(--on-background);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
}

.timeline-item {
    display: flex;
    margin-bottom: var(--space-xl);
    position: relative;
}

.timeline-marker {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    background: var(--primary);
    color: var(--on-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--title-medium);
    font-weight: 500;
    position: relative;
    z-index: 2;
}

.timeline-content {
    background: var(--surface);
    margin-left: var(--space-lg);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    flex-grow: 1;
}

.timeline-content h4 {
    color: var(--primary);
    font-size: var(--title-medium);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.timeline-exams {
    margin-top: var(--space-md);
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.exam-tag {
    background: var(--primary-container);
    color: var(--primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--body-small);
    font-weight: 500;
}

/* Schedule Grid */
.schedule-section,
.tracking-section {
    margin-bottom: var(--space-2xl);
}

.schedule-section h3,
.tracking-section h3 {
    font-size: var(--headline-medium);
    color: var(--on-background);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.schedule-grid,
.tracking-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.schedule-card,
.track-card {
    background: var(--surface);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-1);
    transition: all var(--transition-fast);
}

.schedule-card:hover,
.track-card:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
}

.schedule-card h4,
.track-card h4 {
    color: var(--primary);
    font-size: var(--title-small);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

/* Resources Section */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.resource-category {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--elevation-1);
}

.resource-category h3 {
    background: var(--primary);
    color: var(--on-primary);
    padding: var(--space-lg);
    margin: 0;
    font-size: var(--title-medium);
    font-weight: 500;
}

.resource-list {
    padding: var(--space-lg);
}

.resource-item {
    margin-bottom: var(--space-lg);
}

.resource-item h4 {
    color: var(--on-surface);
    font-size: var(--title-small);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.resource-item:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: var(--surface-container);
    border-top: 1px solid var(--surface-variant);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.footer-section h3,
.footer-section h4 {
    color: var(--primary);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.footer-section h3 {
    font-size: var(--title-large);
}

.footer-section h4 {
    font-size: var(--title-medium);
}

.footer-section p {
    color: var(--on-surface-variant);
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--on-surface-variant);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-social {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--on-surface-variant);
}

.footer-bottom {
    border-top: 1px solid var(--surface-variant);
    padding-top: var(--space-lg);
    text-align: center;
    color: var(--on-surface-variant);
    font-size: var(--body-small);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: var(--display-small);
    }
    
    .pathway-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: var(--body-medium);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        padding: 100px 0 var(--space-2xl);
    }
    
    .hero-title {
        font-size: var(--headline-large);
    }
    
    .hero-stats {
        gap: var(--space-md);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .timeline-item {
        flex-direction: column;
    }
    
    .timeline-marker {
        align-self: flex-start;
        margin-bottom: var(--space-md);
    }
    
    .timeline-content {
        margin-left: 0;
    }
    
    .schedule-grid,
    .tracking-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .nav-container {
        padding: var(--space-sm);
    }
    
    .hero-title {
        font-size: var(--headline-medium);
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .stat-card {
        padding: var(--space-md);
        min-width: 100px;
    }
    
    .card-content,
    .resource-list,
    .schedule-card,
    .track-card {
        padding: var(--space-md);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --surface: #121212;
        --surface-variant: #1E1E1E;
        --surface-container: #1F1F1F;
        --surface-container-high: #2D2D2D;
        --background: #121212;
        --background-secondary: #1E1E1E;
        --on-surface: #E1E1E1;
        --on-surface-variant: #CACACA;
        --on-background: #E1E1E1;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInLeft 0.6s ease forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: slideInRight 0.6s ease forwards;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll Indicators */
.section-indicator {
    position: fixed;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--surface-variant);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.indicator-dot.active {
    background: var(--primary);
    transform: scale(1.5);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.skeleton {
    background: linear-gradient(90deg, var(--surface-variant) 25%, var(--surface-container) 50%, var(--surface-variant) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.btn:focus-visible {
    outline-offset: 4px;
}

/* Interactive Features Styles */

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.search-container {
    max-width: 600px;
    margin: 10% auto;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-4);
    overflow: hidden;
}

.search-header {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    border-bottom: 1px solid var(--surface-variant);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: var(--body-large);
    color: var(--on-surface);
    padding: var(--space-sm);
}

.search-input::placeholder {
    color: var(--on-surface-variant);
}

.search-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--on-surface-variant);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.search-close:hover {
    background: var(--surface-variant);
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    padding: var(--space-md);
    border-bottom: 1px solid var(--surface-variant);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-result-item:hover {
    background: var(--surface-variant);
}

.search-result-item h4 {
    color: var(--primary);
    font-size: var(--title-small);
    margin-bottom: var(--space-xs);
}

.search-result-item p {
    color: var(--on-surface-variant);
    font-size: var(--body-small);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        box-shadow: var(--elevation-3);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        top: 70px;
    }
    
    .nav-toggle.active .material-icons {
        transform: rotate(90deg);
    }
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--on-surface-variant);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    margin-left: var(--space-md);
}

.theme-toggle:hover {
    background: var(--surface-variant);
    color: var(--primary);
}

/* Dark Theme */
.dark-theme {
    --surface: #121212;
    --surface-variant: #1E1E1E;
    --surface-container: #1F1F1F;
    --surface-container-high: #2D2D2D;
    --background: #121212;
    --background-secondary: #1E1E1E;
    --on-surface: #E1E1E1;
    --on-surface-variant: #CACACA;
    --on-background: #E1E1E1;
}

/* Tooltips */
.tooltip {
    position: absolute;
    background: var(--on-surface);
    color: var(--surface);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--body-small);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 1100;
    pointer-events: none;
}

.tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--on-surface);
}

/* Career Calculator */
.floating-calculator {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 1000;
}

.calculator-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: var(--body-medium);
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--elevation-3);
    transition: all var(--transition-fast);
}

.calculator-btn:hover {
    background: var(--primary-variant);
    transform: translateY(-2px);
    box-shadow: var(--elevation-4);
}

.calculator-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.calculator-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--elevation-4);
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.calculator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--surface-variant);
}

.calculator-header h3 {
    margin: 0;
    color: var(--primary);
    font-size: var(--title-large);
}

.calculator-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--on-surface-variant);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.calculator-close:hover {
    background: var(--surface-variant);
}

.calculator-body {
    padding: var(--space-lg);
}

.calc-question {
    margin-bottom: var(--space-lg);
}

.calc-question label {
    display: block;
    color: var(--on-surface);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.calc-question input,
.calc-question select {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--surface-variant);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--on-surface);
    font-size: var(--body-medium);
    transition: border-color var(--transition-fast);
}

.calc-question input:focus,
.calc-question select:focus {
    outline: none;
    border-color: var(--primary);
}

.calculator-result {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    background: var(--surface-variant);
    border-radius: var(--radius-sm);
}

.calculator-result h4 {
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.recommendation-item {
    background: var(--surface);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    border-left: 4px solid var(--primary);
}

.recommendation-item h5 {
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.suitability-high {
    color: var(--success);
    font-weight: 500;
}

.suitability-medium {
    color: var(--warning);
    font-weight: 500;
}

.suitability-low {
    color: var(--error);
    font-weight: 500;
}

.next-steps {
    margin-top: var(--space-sm);
}

.next-steps ul {
    margin-top: var(--space-xs);
    padding-left: var(--space-md);
}

.next-steps li {
    color: var(--on-surface-variant);
    margin-bottom: var(--space-xs);
}

.recommendation-footer {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--surface-variant);
    text-align: center;
}

.recommendation-footer em {
    color: var(--on-surface-variant);
    font-size: var(--body-small);
}

/* Scrolled Header State */
.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
}

.dark-theme .header.scrolled {
    background: rgba(18, 18, 18, 0.95);
}

/* Active Navigation Link */
.nav-menu a.active {
    color: var(--primary);
    background: var(--primary-container);
}

.nav-menu a.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Accordion Cards */
@media (max-width: 768px) {
    .pathway-card .card-content,
    .exam-card .card-content,
    .mba-card .card-content {
        max-height: 200px;
        overflow: hidden;
        transition: max-height var(--transition-normal);
    }
    
    .pathway-card.expanded .card-content,
    .exam-card.expanded .card-content,
    .mba-card.expanded .card-content {
        max-height: none;
    }
    
    .pathway-card .card-header,
    .exam-card .card-header,
    .mba-card .card-header {
        cursor: pointer;
        position: relative;
    }
    
    .pathway-card .card-header::after,
    .exam-card .card-header::after,
    .mba-card .card-header::after {
        content: 'expand_more';
        font-family: 'Material Icons';
        position: absolute;
        right: var(--space-md);
        top: 50%;
        transform: translateY(-50%);
        transition: transform var(--transition-fast);
    }
    
    .pathway-card.expanded .card-header::after,
    .exam-card.expanded .card-header::after,
    .mba-card.expanded .card-header::after {
        transform: translateY(-50%) rotate(180deg);
    }
}

/* Section Indicators Mobile */
@media (max-width: 768px) {
    .section-indicator {
        right: var(--space-sm);
        gap: var(--space-xs);
    }
    
    .indicator-dot {
        width: 6px;
        height: 6px;
    }
}

/* Floating Calculator Mobile */
@media (max-width: 768px) {
    .floating-calculator {
        bottom: var(--space-lg);
        right: var(--space-lg);
    }
    
    .calculator-btn span:last-child {
        display: none;
    }
    
    .calculator-content {
        margin: 5% auto;
        max-height: 90vh;
    }
}

/* Performance Optimizations */
.card-content {
    will-change: max-height;
}

.pathway-card,
.exam-card,
.mba-card {
    will-change: transform, box-shadow;
}

.btn {
    will-change: transform, box-shadow;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .nav-toggle,
    .hero-actions,
    .section-indicator,
    .floating-calculator,
    .search-overlay,
    .calculator-modal,
    .theme-toggle {
        display: none !important;
    }
    
    .hero {
        padding: var(--space-md) 0;
    }
    
    .section {
        padding: var(--space-md) 0;
        break-inside: avoid;
    }
    
    .pathway-card,
    .exam-card,
    .mba-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--surface-variant);
    }
    
    .calculator-result {
        break-inside: avoid;
    }
}