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

:root {
    --primary-color: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary-color: #06b6d4;
    --accent-color: #22d3ee;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #22d3ee 0%, #67e8f9 100%);
    --gradient-hero: linear-gradient(135deg, #0284c7 0%, #0ea5e9 50%, #22d3ee 100%);
}

[data-theme="dark"] {
    --primary-color: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary-color: #06b6d4;
    --accent-color: #22d3ee;
    --text-dark: #f9fafb;
    --text-light: #d1d5db;
    --bg-light: #1f2937;
    --bg-white: #111827;
    --border-color: #374151;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #22d3ee 0%, #67e8f9 100%);
    --gradient-hero: linear-gradient(135deg, #0284c7 0%, #0ea5e9 50%, #22d3ee 100%);
}

html {
    scroll-behavior: smooth;
}

html, body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Cairo', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-white);
}

* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(17, 24, 39, 0.95);
}

[data-theme="dark"] .nav-menu a {
    color: var(--text-dark);
}

[data-theme="dark"] .logo {
    color: var(--primary-color);
}

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

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.7rem;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 1rem;
    color: var(--text-dark);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.theme-toggle i {
    font-size: 1.2rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1.2rem;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
}

.hero-title .highlight {
    color: var(--accent-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease 0.4s both;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--bg-white);
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item i {
    font-size: 2.2rem;
    color: var(--accent-color);
}

.stat-item h3 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.stat-item p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

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

/* ===== Section Styles ===== */
section {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.8rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 50%;
    transform: translateX(50%);
    width: 70px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 1.2rem auto 0;
}

/* ===== Features Section ===== */
.features {
    background: var(--bg-light);
}

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

.feature-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-align: center;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.2rem;
    background: var(--gradient-primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Modules Section ===== */
.modules {
    background: var(--bg-white);
}

.modules-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 1rem 2rem;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-dark);
}

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

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.modules-content {
    position: relative;
    min-height: 400px;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

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

.module-details {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2.5rem;
    align-items: center;
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 20px;
}

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

.module-image i {
    font-size: 7rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.module-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    color: var(--text-dark);
}

.module-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.module-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-white);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.module-list li:hover {
    transform: translateX(-5px);
    box-shadow: var(--shadow-md);
}

.module-list i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* ===== App Download Section ===== */
.app-download {
    background: var(--bg-light);
}

.app-download-content {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
}

.app-info {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    text-align: center;
}

.app-logo {
    width: 85px;
    height: 85px;
    margin: 0 auto 1.2rem;
    background: var(--gradient-primary);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
}

.app-info h3 {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.app-description {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 0.95rem;
}

.app-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.app-stat {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.app-stat:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background: white;
}

.app-stat i {
    font-size: 1.7rem;
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 10px;
}

.app-stat h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: var(--text-dark);
}

.app-stat p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

.app-features-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.app-feature {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.85rem;
    background: var(--bg-light);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.app-feature:hover {
    transform: translateX(-5px);
    box-shadow: var(--shadow-md);
}

.app-feature i {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.app-feature span {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
}

.btn-play-store {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
    color: white;
    padding: 1.1rem 1.8rem;
    font-size: 1rem;
    border: none;
}

.btn-play-store:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-play-store i {
    font-size: 1.5rem;
}

.app-note {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.app-note i {
    color: var(--secondary-color);
}

.app-screenshots {
    position: relative;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.screenshot-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    background: var(--bg-white);
    padding: 0.5rem;
}

.screenshot-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

/* Lightbox effect for screenshots */
.screenshot-item {
    cursor: pointer;
}

@media (max-width: 768px) {
    .app-download-content {
        max-width: 100%;
    }
    
    .app-info {
        padding: 2rem;
    }
    
}

/* ===== Screenshots Gallery Section ===== */
.screenshots-gallery {
    background: var(--bg-white);
    padding: 60px 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    background: var(--bg-white);
    padding: 0.5rem;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--bg-light);
}

.contact-simple {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}

.contact-phone {
    text-align: center;
    background: var(--bg-white);
    padding: 2.5rem 1.8rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.phone-icon {
    width: 85px;
    height: 85px;
    margin: 0 auto 1.2rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.2rem;
}

.contact-phone h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.phone-number {
    display: inline-block;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.65rem 1.3rem;
    border-radius: 10px;
    background: var(--bg-light);
}

.phone-number:hover {
    color: var(--primary-dark);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.social-media-section {
    background: var(--bg-white);
    padding: 2.5rem 1.8rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.social-media-section h3 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.social-media-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 1.1rem 1.3rem;
    border-radius: 15px;
    text-decoration: none;
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.social-link i {
    font-size: 1.3rem;
}

.social-link.facebook {
    background: linear-gradient(135deg, #1877f2 0%, #0d5cbf 100%);
}

.social-link.twitter {
    background: linear-gradient(135deg, #1da1f2 0%, #0d8bd9 100%);
}

.social-link.instagram {
    background: linear-gradient(135deg, #e4405f 0%, #c13584 50%, #833ab4 100%);
}

.social-link.linkedin {
    background: linear-gradient(135deg, #0077b5 0%, #005885 100%);
}

.social-link.whatsapp {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
}

.social-link.youtube {
    background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
}

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1.5rem;
}

[data-theme="dark"] .footer {
    background: #0f172a;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--accent-color);
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* ===== Scroll to Top ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.scroll-top.show {
    display: flex;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: right 0.3s ease;
        gap: 1rem;
    }

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

    .nav-toggle {
        display: flex;
    }

    .theme-toggle {
        margin-left: 0.5rem;
        width: 35px;
        height: 35px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .module-details {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .module-image i {
        font-size: 5rem;
    }

    .contact-simple {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .social-media-links {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .app-download-content {
        max-width: 100%;
    }

    .app-stats {
        flex-direction: column;
        align-items: center;
    }

    .screenshot-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.9rem;
    }

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

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}