:root {
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #818CF8;
    --secondary: #F3F4F6;
    --text-main: #111827;
    --text-muted: #6B7280;
    --bg-main: #FFFFFF;
    --bg-alt: #F9FAFB;
    --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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography elements */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

a {
    text-decoration: none;
    color: inherit;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: white;
    color: var(--primary);
    border: 1px solid var(--border-color);
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 24px;
    height: 24px;
    background-image: url('assets/logo.png');
    background-size: cover;
    background-position: center;
    border-radius: 6px;
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 5rem;
    background: linear-gradient(135deg, #f3f4ff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

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

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    letter-spacing: -0.025em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

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

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 300px;
    background: white;
    padding: 12px;
    border-radius: 2.5rem;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 10;
    border: 8px solid #111827;
}

.screenshot {
    width: 100%;
    border-radius: 1.5rem;
    display: block;
}

.glow-effect {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(79,70,229,0.3) 0%, rgba(255,255,255,0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* Section Common */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-muted);
}

.dark-header h2 { color: white; }
.dark-header p { color: #d1d5db; }

/* Features */
.features {
    padding: 6rem 2rem;
    background-color: var(--bg-main);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem 2rem;
    background: var(--bg-alt);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: rgba(79, 70, 229, 0.1);
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
}

/* Showcase */
.showcase {
    padding: 6rem 2rem;
    background-color: var(--text-main);
    color: white;
}

.gallery {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 3rem;
    padding: 4rem 2rem;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE 10+ */
}

.gallery::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.gallery-item {
    flex: 0 0 320px;
    scroll-snap-align: center;
    border-radius: 3rem;
    border: 12px solid #1f2937;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: float 6s ease-in-out infinite;
}

.gallery-item:nth-child(even) {
    animation-delay: -3s;
}

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

.gallery-item:hover {
    transform: scale(1.05) translateY(-10px) !important;
    box-shadow: 0 35px 60px -15px rgba(79, 70, 229, 0.4);
    border-color: #374151;
    z-index: 10;
}

.gallery-item img {
    width: 100%;
    display: block;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.02);
}

.item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem 1.5rem 1.5rem;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 60%, transparent 100%);
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    text-align: center;
    opacity: 0.9;
}

/* CTA Section */
.cta-section {
    padding: 8rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-container h2 {
    font-size: 3rem;
    color: white;
    margin-bottom: 1.5rem;
}

.cta-container p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 3rem;
}

.store-badge img {
    height: 60px;
    transition: transform 0.3s;
}

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

/* Footer */
footer {
    background-color: #111827;
    color: #9CA3AF;
    padding: 4rem 2rem 2rem;
    font-size: 0.875rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    border-bottom: 1px solid #374151;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

.footer-bottom {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }

    .hero-actions {
        justify-content: center;
        flex-direction: column;
    }
    
    .hero-visual {
        margin-top: 2rem;
    }

    .gallery-item {
        flex: 0 0 260px;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}