/* ============================================
   SCHULE App Store - CSS Stylesheet
   ============================================ */

:root {
    /* Light Mode Colors */
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #06b6d4;

    /* Neutral Colors */
    --dark-color: #0f172a;
    --light-color: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --bg-light: #ffffff;
    --bg-secondary: #f1f5f9;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));

    /* Transitions & Animations */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-out;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 35px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 20px 40px rgba(37, 99, 235, 0.15);
}

/* Dark Mode */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #1e40af;
    --accent-color: #06b6d4;

    --text-dark: #f1f5f9;
    --text-light: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --bg-light: #1e293b;
    --bg-secondary: #0f172a;
    --light-color: #1e293b;

    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 35px rgba(0, 0, 0, 0.6);
    --shadow-hover: 0 20px 40px rgba(59, 130, 246, 0.25);
}

/* ============================================
   Global Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    animation: none;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Animation Utility Classes */
.animate-fade {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

.animate-slide-left {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slide-right {
    animation: slideInRight 0.6s ease-out;
}

.animate-scale {
    animation: scaleIn 0.6s ease-out;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    background: var(--bg-light);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.navbar-brand {
    flex: 1;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

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

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 1.2rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.btn-primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

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

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

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

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

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 6rem 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-tagline {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn {
    font-size: 1rem;
}

/* ============================================
   Overview Section
   ============================================ */

.overview {
    padding: 4rem 20px;
    background: var(--bg-secondary);
}

.overview h2,
.modules h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   Benefits Section
   ============================================ */

.benefits-section {
    padding: 4rem 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.benefits-section h2 {
    color: white;
    text-align: center;
    margin-bottom: 3rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.4);
}

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

.benefit-number {
    font-size: 3rem;
    font-weight: 700;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    display: block;
}

.benefit-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.benefit-item p {
    font-size: 0.95rem;
    opacity: 0.95;
    line-height: 1.6;
}

/* ============================================
   Modules Section
   ============================================ */

.modules {
    padding: 4rem 20px;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.module-card {
    background: var(--bg-light);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid var(--border-color);
}

.module-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.module-card:hover::after {
    transform: scaleX(1);
}

.module-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.module-banner {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    position: relative;
    overflow: hidden;
}

.module-banner::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: drift 20s linear infinite;
}

.module-icon {
    font-size: 4rem;
    z-index: 1;
}

.module-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.module-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.module-full-name {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.module-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.target-users {
    font-size: 0.9rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.quick-features {
    margin-bottom: 1rem;
    flex: 1;
}

.quick-features strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.quick-features ul {
    list-style: none;
    padding-left: 0;
}

.quick-features li {
    font-size: 0.9rem;
    color: var(--text-light);
    padding: 0.25rem 0;
    padding-left: 1.5rem;
    position: relative;
}

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

.module-actions {
    display: flex;
    gap: 1rem;
}

.module-actions .btn {
    flex: 1;
    text-align: center;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4rem 20px;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Module Detail Page
   ============================================ */

.module-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4rem 20px;
}

.module-header .container {
    max-width: 1200px;
}

.module-header-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

.module-header-image {
    display: flex;
    justify-content: center;
}

.module-banner-large {
    width: 300px;
    height: 300px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.2));
    backdrop-filter: blur(10px);
}

.module-icon-large {
    font-size: 8rem;
}

.module-header-info h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.module-name-short {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.module-description-main {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    opacity: 0.95;
}

.module-target-users {
    margin-bottom: 2rem;
}

.module-target-users h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.user-badges {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.25);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.module-download-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.module-section {
    padding: 4rem 20px;
}

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

.module-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

/* ============================================
   Features List
   ============================================ */

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.feature-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.feature-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.feature-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   Sub Modules Grid
   ============================================ */

.sub-modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.sub-module-card {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.sub-module-card h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.sub-module-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ============================================
   Tech Details
   ============================================ */

.tech-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.tech-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.tech-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-size: 1.2rem;
}

.tech-label {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.tech-card code {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
}

.link-button {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: var(--transition);
}

.link-button:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* ============================================
   Requirements Section
   ============================================ */

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.requirement-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--primary-color);
}

.requirement-card h4 {
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-size: 1.1rem;
}

.requirement-card ul {
    list-style: none;
    padding: 0;
}

.requirement-card li {
    padding: 0.5rem 0;
    color: var(--text-light);
    font-size: 0.95rem;
    padding-left: 1.5rem;
    position: relative;
}

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

/* ============================================
   Getting Started
   ============================================ */

.getting-started {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.step p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ============================================
   Related Modules
   ============================================ */

.integration-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.related-modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.related-module-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.related-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.related-module-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.related-module-item p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

/* ============================================
   CTA Module Section
   ============================================ */

.cta-module {
    text-align: center;
}

.cta-module h2 {
    color: var(--text-dark);
}

.cta-module p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.download-cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Back Link
   ============================================ */

.back-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.back-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--bg-secondary);
    color: var(--text-dark);
    padding: 3rem 20px 1rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-tagline {
    font-size: 0.9rem;
    font-style: italic;
    margin-top: 0.5rem;
    opacity: 0.8 !important;
}

.footer-contact {
    margin-bottom: 1rem !important;
    line-height: 1.6;
}

.footer-contact strong {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.6);
    }
}

@keyframes drift {
    0%, 100% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(25px, 25px);
    }
    50% {
        transform: translate(0, 50px);
    }
    75% {
        transform: translate(-25px, 25px);
    }
}

/* Apply animations on load */
* {
    animation: fadeIn 0.6s ease-out forwards;
}

body {
    animation: none;
    opacity: 0;
}

/* Ripple Effect */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple {
    position: absolute;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .overview h2,
    .modules h2 {
        font-size: 2rem;
    }

    .module-header-content {
        grid-template-columns: 1fr;
    }

    .module-banner-large {
        width: 200px;
        height: 200px;
    }

    .module-icon-large {
        font-size: 5rem;
    }

    .module-header-info h1 {
        font-size: 1.8rem;
    }

    .module-download-buttons {
        flex-direction: column;
    }

    .module-download-buttons .btn {
        width: 100%;
    }

    .features-grid,
    .modules-grid,
    .features-list,
    .tech-details,
    .getting-started,
    .related-modules,
    .requirements-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .logo-icon {
        font-size: 1.4rem;
    }

    .module-card h3 {
        font-size: 1.2rem;
    }

    .cta-section h2 {
        font-size: 1.8rem;
    }

    .overview h2,
    .modules h2,
    .module-section h2 {
        font-size: 1.5rem;
    }
}