:root {
    --primary-color: #2ecc71;
    --secondary-color: #27ae60;
    --accent-color: #3498db;
    --dark-color: #2c3e50;
    --light-color: #f8f9fa;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
}

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

html {
    scroll-behavior: smooth;
}

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

.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: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 3px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('img/intro-bg.jpg');
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.title-line {
    display: block;
}

.title-accent {
    background: linear-gradient(90deg, #f1c40f, #f39c12);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.5rem);
    margin-bottom: 2rem;
    opacity: 0.95;
    font-weight: 300;
}

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

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    width: 30px;
    height: 50px;
    border: 2px solid white;
    border-radius: 25px;
    position: relative;
}

.scroll-indicator span {
    position: absolute;
    top: 10px;
    left: 50%;
    width: 6px;
    height: 6px;
    margin-left: -3px;
    background: white;
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(20px);
        opacity: 0;
    }
}

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

/* Section Styles */
section {
    padding: 80px 0;
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section */
.about {
    background: white;
}

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

.about-text {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    padding: 2rem;
    background: linear-gradient(135deg, #e8f8f5 0%, #d5f4e6 100%);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* Apps Section */
.apps {
    background: var(--light-color);
}

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

.app-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}

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

.app-card.featured {
    grid-column: span 1;
}

.featured-badge {
    position: absolute;
    top: 18px;
    right: -40px;
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: white;
    padding: 5px 45px 5px 55px;
    transform: rotate(45deg);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.new-badge {
    position: absolute;
    top: 16px;
    right: -35px;
    background: linear-gradient(135deg, #27ae60, #229954);
    color: white;
    padding: 5px 50px;
    transform: rotate(45deg);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.app-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.app-image img {
    width: 180px;
    height: 180px;
    object-fit: contain;
    transition: var(--transition);
}

.app-card:hover .app-image img {
    transform: scale(1.1);
}

.app-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.app-card:hover .app-overlay {
    opacity: 1;
}

.play-button {
    background: white;
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.play-button svg {
    width: 24px;
    height: 24px;
}

.play-button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.app-content {
    padding: 1.5rem;
}

.app-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.app-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.app-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

.app-link:hover {
    gap: 5px;
}

/* Contact Section */
.contact {
    background: white;
}

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

.contact-text {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, #e8f8f5 0%, #d5f4e6 100%);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
    min-width: 300px;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--primary-color);
}

.contact-details {
    text-align: left;
}

.contact-details h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

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

/* Privacy Section */
.privacy {
    background: var(--light-color);
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-card {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.privacy-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.privacy-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.privacy-section {
    margin: 2rem 0;
}

.privacy-section h4 {
    font-size: 1.25rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.privacy-section ul {
    list-style: none;
    padding-left: 0;
}

.privacy-section li {
    color: var(--text-light);
    line-height: 1.8;
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.privacy-section li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.privacy-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.privacy-section a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-apps h4 {
    margin-bottom: 1rem;
}

.footer-links a,
.footer-apps a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 0.25rem 0;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-apps a:hover {
    color: white;
    transform: translateX(5px);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0.5rem 0;
}

.footer-note {
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
        text-align: center;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
    }
    
    .app-card.featured {
        grid-column: span 1;
    }
    
    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .privacy-card {
        padding: 2rem;
    }
}

@media (min-width: 1200px) {
    .app-card.featured {
        transform: scale(1.05);
    }
}