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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.logo:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.logo-img {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.logo h1 {
    color: #2d3748;
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-links a {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    background: transparent;
}

.nav-links a:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.nav-links a:active {
    transform: translateY(0);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    gap: 4px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: rgba(102, 126, 234, 0.1);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: #4a5568;
    border-radius: 1px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    background: #667eea;
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
    background: #667eea;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
    padding: 100px 0 80px;
    color: white;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 4px 8px rgba(0,0,0,0.2);
    background: linear-gradient(45deg, #fff, #f0f8ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.7;
    font-weight: 400;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    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: linear-gradient(135deg, #ff6b6b 0%, #ff8e8e 50%, #ffa726 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #ff5252 0%, #ff7676 50%, #ff9800 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.5);
}

.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-3px);
    border-color: rgba(255,255,255,0.5);
    box-shadow: 0 8px 25px rgba(255,255,255,0.2);
}

/* App Mockup */
.app-mockup {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-frame {
    width: 240px;
    height: 480px;
    background: linear-gradient(145deg, #2d3748, #1a202c);
    border-radius: 25px;
    padding: 6px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 4px;
    background: #4a5568;
    border-radius: 2px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 22px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 50%, #e2e8f0 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #cbd5e0 50%, transparent 100%);
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 4rem;
    color: #2d3748;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
}

.feature-card p {
    color: #4a5568;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 50%, #edf2f7 100%);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-text h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: #2d3748;
    position: relative;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    border-radius: 2px;
}

.about-text p {
    font-size: 1.15rem;
    color: #4a5568;
    margin-bottom: 1.8rem;
    line-height: 1.8;
    font-weight: 400;
}

.tech-stack h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.tech-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

/* App Screenshots */
.app-screenshots {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.screenshot {
    width: 100px;
    height: 160px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
    background: #f0f0f0;
}

.screenshot:hover {
    transform: translateY(-5px) rotate(2deg);
}

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Features Showcase Section */
.screenshots-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.features-showcase {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 3rem;
}

.feature-showcase-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-showcase-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.12);
}

.feature-showcase-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.showcase-img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

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

.feature-showcase-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 1rem;
}

.feature-showcase-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #4a5568;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain2" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.05"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain2)"/></svg>');
    pointer-events: none;
}

.download .container {
    position: relative;
    z-index: 1;
}

.download h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.download p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn-app-store, .btn-google-play {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    padding: 16px 32px;
    font-size: 1.1rem;
    backdrop-filter: blur(10px);
}

.btn-app-store:hover, .btn-google-play:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255,255,255,0.2);
}

.download-info {
    opacity: 0.8;
}

.download-info p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: white;
    padding: 60px 0 20px;
}

.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;
    color: white;
}

.footer-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-section p {
    color: #cbd5e0;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-logo-img {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 20px;
    text-align: center;
    color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links {
        display: none;
        flex-direction: column;
        gap: 0.5rem;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 1rem;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid rgba(102, 126, 234, 0.1);
        z-index: 1000;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-container {
        position: relative;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .app-screenshots {
        flex-direction: row;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .screenshot {
        width: 80px;
        height: 130px;
    }
    
    .feature-showcase-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .showcase-img {
        max-width: 250px;
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}