/* CSS Variables */
:root {
    --color-primary: #A8B5A2;
    --color-primary-dark: #8A9B84;
    --color-primary-light: #C4CFBE;
    --color-secondary: #E6D5B8;
    --color-secondary-dark: #D4C3A6;
    --color-background: #F8F4F0;
    --color-background-alt: #FFFDF9;
    --color-text: #3D3D3D;
    --color-text-light: #6B6B6B;
    --color-text-lighter: #9A9A9A;
    --color-white: #FFFFFF;
    --color-accent: #7A8C72;
    --color-overlay: rgba(61, 61, 61, 0.7);
    
    --font-primary: 'Noto Serif KR', serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --container-max: 680px;
    --spacing-section: 56px;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
}

p {
    color: var(--color-text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn i {
    font-size: 1.1em;
}

.btn-icon-img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: 0 8px 24px rgba(168, 181, 162, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(168, 181, 162, 0.5);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary-dark);
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 20px 48px;
    font-size: 1.1rem;
}

/* =====================================================
   Hero Section
===================================================== */
.hero {
    position: relative;
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 0 32px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-bg.png') center center / cover no-repeat;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(248, 244, 240, 0.75) 0%,
        rgba(248, 244, 240, 0.85) 50%,
        rgba(248, 244, 240, 0.92) 100%
    );
    z-index: 1;
}

/* Hero Floating Decorations */
.hero-decorations {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.deco-1 {
    width: 200px;
    height: 200px;
    background: var(--color-primary);
    top: 10%;
    left: -60px;
    animation: floatSlow 8s ease-in-out infinite;
}

.deco-2 {
    width: 120px;
    height: 120px;
    background: var(--color-secondary);
    top: 20%;
    right: -30px;
    animation: floatSlow 6s ease-in-out infinite reverse;
}

.deco-3 {
    width: 80px;
    height: 80px;
    background: var(--color-primary-dark);
    bottom: 25%;
    left: 5%;
    animation: floatSlow 7s ease-in-out infinite 1s;
}

.deco-icon {
    position: absolute;
    width: 48px;
    height: 48px;
    background: var(--color-white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0.9;
}

.deco-icon i {
    font-size: 1.2rem;
    color: var(--color-primary-dark);
}

.deco-icon-1 {
    top: 15%;
    right: 12%;
    animation: floatIcon 4s ease-in-out infinite;
}

.deco-icon-2 {
    top: 55%;
    left: 8%;
    animation: floatIcon 5s ease-in-out infinite 0.5s;
}

.deco-icon-3 {
    bottom: 20%;
    right: 10%;
    animation: floatIcon 4.5s ease-in-out infinite 1s;
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-12px) scale(1.05); }
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    padding: 20px 0;
}

/* Hero Visual Image */
.hero-visual {
    position: relative;
    margin: 28px auto;
    max-width: 320px;
}

.hero-visual img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.hero-visual-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(ellipse, var(--color-primary-light) 0%, transparent 70%);
    opacity: 0.5;
    z-index: 0;
    filter: blur(30px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 28px;
    padding: 20px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--color-primary-light);
    opacity: 0.5;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-white);
    color: var(--color-primary-dark);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
    animation: fadeInDown 0.8s ease;
}

.badge i {
    color: var(--color-primary);
}

.hero-title {
    font-size: 2.4rem;
    font-weight: 900;
    margin-bottom: 16px;
    line-height: 1.3;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.title-accent {
    color: var(--color-primary-dark);
    position: relative;
}

.title-accent::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 12px;
    background: var(--color-secondary);
    z-index: -1;
    opacity: 0.7;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    margin-bottom: 0;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-subtitle strong {
    color: var(--color-text);
}

.hero-cta {
    animation: fadeInUp 0.8s ease 0.5s both;
    margin-top: 24px;
}

.pulse-btn {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 8px 24px rgba(168, 181, 162, 0.4);
    }
    50% {
        box-shadow: 0 8px 40px rgba(168, 181, 162, 0.6);
    }
}


/* =====================================================
   Core Message Section
===================================================== */
.core-message {
    padding: var(--spacing-section) 0;
    background: var(--color-background-alt);
}

.message-card {
    background: var(--color-white);
    padding: 36px 32px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.message-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.quote-icon {
    margin-bottom: 20px;
}

.quote-icon i {
    font-size: 2rem;
    color: var(--color-primary);
    opacity: 0.5;
}

.message-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-text);
}

.message-text {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--color-text);
}

.strikethrough {
    text-decoration: line-through;
    color: var(--color-text-lighter);
}

.highlight {
    color: var(--color-primary-dark);
    font-weight: 600;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: var(--color-secondary);
    z-index: -1;
    opacity: 0.6;
}

/* =====================================================
   Course Content Section
===================================================== */
.course-content {
    padding: var(--spacing-section) 0;
    background: linear-gradient(180deg, var(--color-background-alt) 0%, var(--color-background) 100%);
}

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

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 1rem;
    color: var(--color-text-light);
}

.content-grid {
    display: grid;
    gap: 20px;
}

.lecture-card {
    background: var(--color-white);
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.lecture-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.lecture-number {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-primary-light);
    opacity: 0.3;
    line-height: 1;
}

.lecture-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.lecture-icon i {
    font-size: 1.5rem;
    color: var(--color-white);
}

.lecture-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-text);
}

.lecture-points {
    list-style: none;
}

.lecture-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.lecture-points li i {
    color: var(--color-primary);
    margin-top: 4px;
    flex-shrink: 0;
}

/* =====================================================
   Learning Approach Section
===================================================== */
.learning-approach {
    padding: var(--spacing-section) 0;
    background: var(--color-secondary);
}

.learning-approach .section-label {
    background: var(--color-white);
}

.approach-grid {
    display: grid;
    gap: 16px;
}

.approach-card {
    background: var(--color-white);
    padding: 32px 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.approach-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.approach-icon {
    width: 64px;
    height: 64px;
    background: var(--color-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.approach-icon i {
    font-size: 1.5rem;
    color: var(--color-primary-dark);
}

.approach-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.approach-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* =====================================================
   Visual Section
===================================================== */
.visual-section {
    padding: var(--spacing-section) 0;
    background: var(--color-background);
}

.visual-wrapper {
    display: grid;
    gap: 28px;
    align-items: center;
}

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

.visual-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color-primary-dark);
    margin-bottom: 16px;
}

.visual-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

.text-accent {
    color: var(--color-primary-dark);
}

.visual-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.7;
}

.visual-image {
    position: relative;
}

.visual-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.image-decoration {
    position: absolute;
    top: -16px;
    right: -16px;
    width: 80px;
    height: 80px;
    background: var(--color-secondary);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.6;
}

/* =====================================================
   Benefits Section
===================================================== */
.benefits-section {
    padding: var(--spacing-section) 0;
    background: var(--color-background-alt);
}

.benefits-grid {
    display: grid;
    gap: 12px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--color-white);
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon i {
    font-size: 1.25rem;
    color: var(--color-white);
}

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

.benefit-text p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* =====================================================
   Final CTA Section
===================================================== */
.final-cta {
    padding: var(--spacing-section) 0;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    text-align: center;
}

.cta-content {
    padding: 20px 0;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
    line-height: 1.4;
}

.cta-title .text-accent {
    color: var(--color-secondary);
}

.cta-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    line-height: 1.7;
}

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

.final-cta .btn-primary:hover {
    background: var(--color-secondary);
}

/* =====================================================
   Footer
===================================================== */
.footer {
    padding: 32px 0 100px;
    background: var(--color-text);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 20px;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-links a i {
    font-size: 0.85rem;
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* =====================================================
   Fixed CTA Button
===================================================== */
.fixed-cta {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.btn-fixed {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 8px 32px rgba(168, 181, 162, 0.5);
}

.btn-fixed:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(168, 181, 162, 0.6);
}

/* Pulse Animation for Fixed Button */
.pulse-animation {
    animation: pulseScale 1.5s ease-in-out infinite;
}

@keyframes pulseScale {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 32px rgba(168, 181, 162, 0.5);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 12px 48px rgba(168, 181, 162, 0.7);
    }
}

/* =====================================================
   Modals
===================================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-overlay);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    width: 100%;
    max-width: 520px;
    max-height: 80vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: var(--color-background);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
}

.modal-close i {
    font-size: 1.2rem;
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 28px 32px 20px;
    font-size: 1.25rem;
    font-weight: 700;
    border-bottom: 1px solid var(--color-background);
}

.modal-title i {
    color: var(--color-primary);
}

.modal-body {
    padding: 24px 32px 32px;
}

.modal-body h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
    margin-top: 20px;
}

.modal-body h4:first-child {
    margin-top: 0;
}

.modal-body p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* =====================================================
   Animations
===================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* AOS-like animations */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    opacity: 1;
    transform: scale(1);
}

/* =====================================================
   Responsive Design
===================================================== */
@media (max-width: 768px) {
    :root {
        --spacing-section: 48px;
    }
    
    .hero {
        padding: 40px 0 24px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .hero-visual {
        max-width: 280px;
        margin: 24px auto;
    }
    
    .hero-stats {
        gap: 16px;
        padding: 16px;
    }
    
    .stat-number {
        font-size: 1.2rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .deco-icon {
        width: 40px;
        height: 40px;
    }
    
    .deco-icon i {
        font-size: 1rem;
    }
    
    .deco-icon-1 { top: 8%; right: 5%; }
    .deco-icon-2 { top: 45%; left: 3%; }
    .deco-icon-3 { bottom: 15%; right: 5%; }
    
    .message-card {
        padding: 28px 24px;
    }
    
    .message-title {
        font-size: 1.15rem;
    }
    
    .message-text {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .lecture-card {
        padding: 24px 20px;
    }
    
    .lecture-number {
        font-size: 2.2rem;
    }
    
    .visual-title {
        font-size: 1.4rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 14px;
    }
    
    .fixed-cta {
        bottom: 16px;
        left: 16px;
        right: 16px;
        transform: none;
    }
    
    .btn-fixed {
        width: 100%;
        padding: 16px 24px;
    }
    
    .modal-content {
        max-height: 85vh;
    }
    
    .modal-title {
        padding: 20px 20px 14px;
        font-size: 1.05rem;
    }
    
    .modal-body {
        padding: 16px 20px 24px;
    }
    
    .benefit-item {
        padding: 18px;
    }
    
    .benefit-icon {
        width: 44px;
        height: 44px;
    }
    
    .approach-card {
        padding: 24px 20px;
    }
    
    .approach-icon {
        width: 52px;
        height: 52px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-section: 40px;
    }
    
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 18px;
    }
    
    .hero {
        padding: 32px 0 20px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .badge {
        font-size: 0.75rem;
        padding: 8px 14px;
    }
    
    .hero-visual {
        max-width: 240px;
        margin: 20px auto;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .stat-item {
        flex: 1;
        min-width: 70px;
    }
    
    .btn {
        padding: 14px 20px;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 16px 28px;
    }
    
    .btn-icon-img {
        width: 20px;
        height: 20px;
    }
    
    .lecture-icon {
        width: 44px;
        height: 44px;
    }
    
    .lecture-icon i {
        font-size: 1.1rem;
    }
    
    .section-header {
        margin-bottom: 24px;
    }
}

/* Smooth Scroll Padding for Fixed Header (if any) */
html {
    scroll-padding-top: 80px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Selection Color */
::selection {
    background: var(--color-primary-light);
    color: var(--color-text);
}

/* Focus States for Accessibility */
.btn:focus,
.modal-close:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .fixed-cta,
    .modal {
        display: none !important;
    }
}