/* 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: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background: #ffffff;
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.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;
}

.logo-img {
    width: 60px;
    height: 60px;
    border-radius: 15px;
}

.logo h1 {
    color: #667eea;
    font-size: 2.2rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #667eea;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-left: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.1);
}

/* Dark Mode Styles */
body.dark-mode {
    background-color: #0a0a0a;
    color: #ffffff;
}

body.dark-mode .header {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .logo h1 {
    color: #667eea;
}

body.dark-mode .nav-links a {
    color: #ffffff;
}

body.dark-mode .nav-links a:hover {
    color: #667eea;
}

body.dark-mode .mobile-menu-btn span {
    background: white;
}

body.dark-mode .features {
    background: #0f0f0f;
}

body.dark-mode .section-title {
    color: #ffffff;
}

body.dark-mode .feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

body.dark-mode .feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

body.dark-mode .feature-card h3 {
    color: #ffffff;
}

body.dark-mode .feature-card p {
    color: #b0b0b0;
}

body.dark-mode .about {
    background: #0a0a0a;
}

body.dark-mode .about-text h2 {
    color: #ffffff;
}

body.dark-mode .about-text p {
    color: #b0b0b0;
}

body.dark-mode .tech-stack h3 {
    color: #ffffff;
}

body.dark-mode .screenshots-section {
    background: #0f0f0f;
}

body.dark-mode .feature-showcase-content h3 {
    color: #ffffff;
}

body.dark-mode .feature-showcase-content p {
    color: #b0b0b0;
}

body.dark-mode .download {
    background: #0a0a0a;
}

body.dark-mode .download h2 {
    color: #ffffff;
}

body.dark-mode .download p {
    color: #b0b0b0;
}

body.dark-mode .download-info p {
    color: #b0b0b0;
}

body.dark-mode .footer {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .footer-section p {
    color: rgba(255, 255, 255, 0.8);
}

body.dark-mode .footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
}

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

body.dark-mode .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

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

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

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    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="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    justify-items: center;
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: white;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

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

.btn {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

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

.app-mockup {
    position: relative;
}

.phone-frame {
    width: 320px;
    height: 650px;
    position: relative;
    background: url('newassets/apple-iphone-16-proframe.png') no-repeat center center;
    background-size: contain;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    position: absolute;
    top: 8%;
    left: 8%;
    right: 8%;
    bottom: 8%;
    border-radius: 35px;
    overflow: hidden;
    background: #000;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 35px;
}

/* Samsung frame variant for showcase */
.phone-frame.samsung {
    background: url('newassets/samsung frame.png') no-repeat center center;
    background-size: contain;
}

.phone-frame.samsung .phone-screen {
    top: 6%;
    left: 6%;
    right: 6%;
    bottom: 6%;
    border-radius: 25px;
}

.phone-frame.samsung .app-screenshot {
    border-radius: 25px;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #ffffff;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: #333;
}

.about-text p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 1.1rem;
}

.tech-stack h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.app-screenshots {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.screenshot {
    width: 80px;
    height: 140px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
    position: relative;
}

.screenshot::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    z-index: 1;
}

.screenshot.loaded::before {
    display: none;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

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

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.screenshot-img.loaded {
    opacity: 1;
}

/* Screenshots Section */
.screenshots-section {
    padding: 100px 0;
    background: #ffffff;
}

.features-showcase {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.feature-showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.feature-showcase-item:nth-child(even) {
    direction: rtl;
}

.feature-showcase-item:nth-child(even) .feature-showcase-content {
    direction: ltr;
}

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

.showcase-img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.showcase-img.loaded {
    opacity: 1;
    transform: translateY(0);
}

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

.feature-showcase-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
}

.feature-showcase-content p {
    color: #666;
    line-height: 1.7;
    font-size: 1.1rem;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: #f8f9fa;
    text-align: center;
    position: relative;
}

.download h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: #333;
}

.download p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

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

.btn-app-store, .btn-google-play, .btn-web-app {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 18px 35px;
    font-size: 1.1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-app-store:hover, .btn-google-play:hover, .btn-web-app:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.download-info {
    opacity: 0.8;
}

.download-info p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: #666;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer::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="dots2" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots2)"/></svg>');
    pointer-events: none;
}

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

.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: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

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

.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: white;
}

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

.footer-logo-img {
    width: 35px;
    height: 35px;
    border-radius: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 2;
}

/* 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: 1rem;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        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;
    }
    
    .feature-showcase-item:nth-child(even) {
        direction: ltr;
    }
    
    .showcase-img {
        max-width: 250px;
    }
    
    .phone-frame {
        width: 250px;
        height: 500px;
    }
    
    .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: 280px;
        height: 560px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}