/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b5998;
    --primary-hover: #2d4373;
    --primary-light: #4a6ca8;
    --secondary-color: #4285f4;
    --text-primary: #1c1c1e;
    --text-secondary: #86868b;
    --text-white: #f5f5f7;
    --background: #f5f5f7;
    --surface: #ffffff;
    --surface-elevated: #ffffff;
    --border: #e5e5e7;
    --border-light: #d2d2d7;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-elevated: rgba(0, 0, 0, 0.15);
    --gradient: linear-gradient(135deg, #3b5998 0%, #4a6ca8 100%);
    --success: #4CAF50;
    --error: #F44336;
    --warning: #FFC107;
}

[data-theme="dark"] {
    --primary-color: #4a6ca8;
    --primary-hover: #5a7bb8;
    --primary-light: #6a8bc8;
    --secondary-color: #5a9fd4;
    --text-primary: #f5f5f7;
    --text-secondary: #8e8e93;
    --text-white: #f5f5f7;
    --background: #1c1c1e;
    --surface: #2c2c2e;
    --surface-elevated: #3a3a3c;
    --border: #3a3a3c;
    --border-light: #333333;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-elevated: rgba(0, 0, 0, 0.4);
    --gradient: linear-gradient(135deg, #4a6ca8 0%, #5a9fd4 100%);
    --success: #4CAF50;
    --error: #F44336;
    --warning: #FFC107;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Navigation Modern */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(245, 245, 247, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(28, 28, 30, 0.85);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    height: 72px;
    gap: 40px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo img {
    height: 44px;
    width: 44px;
    object-fit: contain;
    border-radius: 10px;
}

.brand-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    line-height: 1;
}

.brand-tagline {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-center {
    display: flex;
    justify-content: center;
}

.nav-links {
    display: flex;
    gap: 8px;
    background: var(--surface);
    padding: 6px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px var(--shadow);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Theme Toggle Modern */
.theme-toggle {
    position: relative;
    width: 60px;
    height: 32px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.theme-toggle-track {
    width: 100%;
    height: 100%;
    position: relative;
}

.theme-toggle-thumb {
    position: absolute;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .theme-toggle-thumb {
    transform: translateX(26px);
}

.theme-icon {
    font-size: 12px;
    position: absolute;
    transition: all 0.3s ease;
}

.sun-icon {
    opacity: 1;
}

.moon-icon {
    opacity: 0;
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.mobile-menu-toggle:hover {
    background: var(--surface-elevated);
}

.hamburger-line {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 20px;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all 0.2s ease;
    background: var(--background);
    border: 1px solid var(--border);
}

.mobile-nav-link:hover {
    background: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: var(--background);
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.5;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 32px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    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 0.5s ease;
}

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

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 8px 32px rgba(59, 89, 152, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(59, 89, 152, 0.4);
}

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

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

/* Hero Visual - Devices Showcase */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.devices-showcase {
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

/* Phone Mockup */
.phone-mockup {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.phone-frame {
    width: 240px;
    height: 480px;
    background: linear-gradient(145deg, #4a4a4a, #2a2a2a);
    border-radius: 20px;
    padding: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    border: 2px solid #333;
}

.phone-notch {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #666;
    border-radius: 2px;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.phone-button {
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: #333;
    border-radius: 50%;
    border: 2px solid #555;
}

/* Browser Mockup */
.browser-mockup {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.browser-frame {
    width: 400px;
    background: var(--surface);
    border-radius: 12px;
    box-shadow: 0 20px 60px var(--shadow-elevated);
    border: 1px solid var(--border);
    overflow: hidden;
}

.browser-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border);
}

.browser-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ff5f57; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #28ca42; }

.browser-url {
    flex: 1;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
}

.browser-content {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.demo-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.browser-content:hover .video-overlay {
    opacity: 1;
}

.play-button {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.play-button:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
}

.device-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--shadow);
}

.device-icon {
    font-size: 16px;
}

/* Services Section */
.services {
    padding: 120px 0;
    background: var(--surface);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--surface-elevated);
    padding: 40px 32px;
    border-radius: 24px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px var(--shadow-elevated);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: block;
}

.service-card h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* Downloads Section */
.downloads {
    padding: 120px 0;
    background: var(--background);
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.download-card {
    background: var(--surface-elevated);
    padding: 40px;
    border-radius: 28px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-card.featured {
    border: 2px solid var(--primary-color);
    box-shadow: 0 20px 60px rgba(59, 89, 152, 0.15);
}

.download-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 56px var(--shadow-elevated);
}

.card-badge {
    position: absolute;
    top: -1px;
    right: 24px;
    background: var(--gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 0 0 12px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.download-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--gradient);
    color: white;
    box-shadow: 0 8px 24px rgba(59, 89, 152, 0.3);
}

.download-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.download-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
}

.features-list {
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-icon {
    font-size: 1.2rem;
    min-width: 24px;
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.download-btn {
    display: block;
    width: 100%;
    text-decoration: none;
    border-radius: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.store-badge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-radius: 16px;
    border: 2px solid var(--border);
    background: var(--surface);
    transition: all 0.3s ease;
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.store-line1 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.store-line2 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 2px;
}

.store-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    font-weight: bold;
}

.android-icon {
    background: linear-gradient(135deg, #3DDC84 0%, #00D084 100%);
}

.chrome-icon {
    background: linear-gradient(135deg, #4285F4 0%, #1a73e8 100%);
}

.firefox-icon {
    background: linear-gradient(135deg, #FF7139 0%, #FF4500 100%);
}

.android-store:hover .store-badge {
    border-color: #3DDC84;
    background: var(--surface-elevated);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(61, 220, 132, 0.2);
}

.chrome-store:hover .store-badge {
    border-color: #4285F4;
    background: var(--surface-elevated);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(66, 133, 244, 0.2);
}

.firefox-store:hover .store-badge {
    border-color: #FF7139;
    background: var(--surface-elevated);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 113, 57, 0.2);
}

.android-store:hover .store-line2 {
    color: #3DDC84;
}

.chrome-store:hover .store-line2 {
    color: #4285F4;
}

.firefox-store:hover .store-line2 {
    color: #FF7139;
}


.download-stats {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 16px;
    background: var(--background);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stat {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--surface);
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-header {
    text-align: center;
    margin-bottom: 60px;
}

.contact-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-header p {
    font-size: 1.3rem;
    color: var(--text-secondary);
}

.contact-form-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

/* Contact Form */
.contact-form {
    background: var(--surface-elevated);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 40px var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--background);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 24px;
    font-size: 1.1rem;
    margin-top: 16px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(59, 89, 152, 0.4);
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--surface-elevated);
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow);
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-details a:hover {
    color: var(--primary-hover);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.footer-brand p {
    color: #86868B;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #86868B;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #2C2C2E;
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: #86868B;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav-container {
        grid-template-columns: auto 1fr;
        gap: 20px;
    }
    
    .nav-center {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .devices-showcase {
        gap: 30px;
    }
    
    .download-options {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 60px auto 0;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
        height: 64px;
    }
    
    .brand-text h1 {
        font-size: 1.3rem;
    }
    
    .brand-tagline {
        font-size: 0.75rem;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-container {
        padding: 0 20px;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .devices-showcase {
        flex-direction: column;
        gap: 40px;
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .browser-frame {
        width: 320px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .service-card {
        padding: 32px 24px;
    }
    
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        padding: 32px 24px;
    }
    
    .contact-form-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form {
        padding: 32px 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 16px 24px;
        font-size: 0.95rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .phone-frame {
        width: 180px;
        height: 360px;
    }
    
    .browser-frame {
        width: 280px;
    }
    
    .download-card {
        padding: 24px 20px;
    }
    
    .download-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .download-stats {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .store-icon {
        width: 32px;
        height: 32px;
        font-size: 1.2rem;
    }
    
    .store-line1 {
        font-size: 0.7rem;
    }
    
    .store-line2 {
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 24px 20px;
    }
    
    .contact-item {
        padding: 20px;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* Offer Banner */
.offer-banner {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 50%, #ff9ff3 100%);
    color: white;
    padding: 12px 0;
    text-align: center;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(238, 90, 36, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideDown 0.5s ease-out;
    display: none;
}

.offer-banner.visible {
    display: block;
}

.offer-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.offer-text {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1rem;
}

.offer-icon {
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

.offer-discount {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.offer-cta {
    background: rgba(255, 255, 255, 0.95);
    color: #ee5a24;
    padding: 8px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.offer-cta:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    border-color: rgba(238, 90, 36, 0.3);
}

.offer-close {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.offer-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
}

/* Adjust main content when banner is visible */
body.banner-visible .hero {
    margin-top: 60px;
}

body.banner-visible .navbar {
    box-shadow: none;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Responsive banner */
@media (max-width: 768px) {
    .offer-banner {
        top: 64px;
        padding: 10px 0;
    }
    
    .offer-banner-content {
        flex-direction: column;
        gap: 8px;
        padding: 0 16px;
    }
    
    .offer-text {
        font-size: 0.9rem;
        gap: 8px;
    }
    
    .offer-discount {
        font-size: 1rem;
        padding: 3px 10px;
    }
    
    .offer-cta {
        font-size: 0.8rem;
        padding: 6px 16px;
    }
    
    .offer-close {
        right: 16px;
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
    
    body.banner-visible .hero {
        margin-top: 50px;
    }
}

@media (max-width: 480px) {
    .offer-text {
        flex-direction: column;
        text-align: center;
        gap: 4px;
    }
    
    .offer-banner-content {
        gap: 12px;
    }
}

/* Animations et transitions globales */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Animation d'entrée */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-visual,
.service-card,
.download-card {
    animation: fadeInUp 0.6s ease-out;
}