/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Variables */
:root {
    --primary: #CDFF00;
    --primary-dark: #a3cc00;
    --primary-glow: rgba(205, 255, 0, 0.3);
    --secondary: #22D3EE;
    
    --bg-dark: #0F172A;
    --bg-darker: #0a0f1a;
    --bg-card: #1E293B;
    --bg-card-hover: #2d3a4f;
    
    --text-white: #FFFFFF;
    --text-gray: #94A3B8;
    --text-light: #CBD5E1;
    --border-color: rgba(255, 255, 255, 0.08);

    /* Category colors */
    --cat-pink: #EC4899;
    --cat-cyan: #22D3EE;
    --cat-purple: #A855F7;
    --cat-green: #10B981;
    --cat-orange: #F59E0B;
    --cat-blue: #3B82F6;

    --container-padding: 1.5rem;
    --max-width: 1200px;
    --radius-xl: 1.5rem;
    --radius-lg: 1rem;
    --radius-md: 0.75rem;
    --radius-sm: 0.5rem;
    
    --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);
    --shadow-glow: 0 0 40px var(--primary-glow);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: #000 !important;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* App Store Button */
.btn-app-store {
    background: linear-gradient(135deg, #1a1a1a 0%, #000 100%);
    color: white;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1rem;
    box-shadow: var(--shadow-xl);
}

.btn-app-store:hover {
    background: linear-gradient(135deg, #2a2a2a 0%, #111 100%);
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-app-store i {
    font-size: 1.75rem;
}

.btn-app-store span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.btn-app-store span small {
    font-size: 0.65rem;
    font-weight: 400;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, #22c55e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: rgba(205, 255, 0, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(205, 255, 0, 0.2);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.625rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-gray);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--text-white);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

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

.hero-text {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(205, 255, 0, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(205, 255, 0, 0.2);
}

.hero-badge i {
    font-size: 0.75rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

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

.phone-mockup {
    position: relative;
    width: 280px;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.5);
    border: 8px solid #1a1a1a;
    background: #000;
}

.phone-mockup img {
    width: 100%;
    display: block;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    font-size: 1rem;
}

.card-1 {
    top: 15%;
    left: -30px;
    animation-delay: 0s;
}

.card-1 i {
    color: var(--cat-pink);
}

.card-2 {
    top: 45%;
    right: -40px;
    animation-delay: 1s;
}

.card-2 i {
    color: var(--cat-purple);
}

.card-3 {
    bottom: 20%;
    left: -20px;
    animation-delay: 2s;
}

.card-3 i {
    color: var(--secondary);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Hero Background */
.hero-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -2;
}

/* Features Section */
.features {
    padding: 120px 0;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(205, 255, 0, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card.featured {
    grid-column: span 1;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(205, 255, 0, 0.05) 100%);
    border-color: rgba(205, 255, 0, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(205, 255, 0, 0.15) 0%, rgba(205, 255, 0, 0.05) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-gray);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.375rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-pink {
    background: rgba(236, 72, 153, 0.15);
    color: var(--cat-pink);
}

.tag-cyan {
    background: rgba(34, 211, 238, 0.15);
    color: var(--cat-cyan);
}

.tag-purple {
    background: rgba(168, 85, 247, 0.15);
    color: var(--cat-purple);
}

/* Categories Section */
.categories-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.category-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    border-color: rgba(205, 255, 0, 0.3);
    box-shadow: var(--shadow-glow);
}

.category-emoji {
    font-size: 2.5rem;
    line-height: 1;
    flex-shrink: 0;
}

.category-info {
    flex: 1;
    min-width: 0;
}

.category-info h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.category-info p {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.category-count {
    display: inline-block;
    background: rgba(205, 255, 0, 0.1);
    color: var(--primary);
    padding: 0.25rem 0.625rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }

    .category-card {
        padding: 1.25rem;
    }
}

/* Screenshots Section */
.screenshots-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    overflow: hidden;
}

.screenshots-wrapper {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.screenshots-container {
    display: flex;
    gap: 1.25rem;
    padding: 2rem 0;
    justify-content: center;
    flex-wrap: nowrap;
}

.screenshot-item {
    flex: 0 0 220px;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--bg-card);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    background: #000;
}

.screenshot-item img {
    width: 100%;
    display: block;
}

.screenshot-item:hover {
    transform: scale(1.05);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.screenshot-item.active {
    transform: scale(1.08);
    border-color: var(--primary);
}

.screenshot-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.screenshot-item:hover .screenshot-label {
    opacity: 1;
}

/* How It Works */
.how-it-works {
    padding: 120px 0;
}

.steps-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.step-card {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--border-color);
    position: relative;
    flex: 0 0 280px;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: rgba(205, 255, 0, 0.3);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.875rem;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(205, 255, 0, 0.15) 0%, rgba(205, 255, 0, 0.05) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin: 0 auto 1.25rem;
}

.step-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.step-card p {
    color: var(--text-gray);
    font-size: 0.9375rem;
}

.step-connector {
    color: var(--text-gray);
    font-size: 1.25rem;
    opacity: 0.5;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
}

.cta-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.cta-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.cta-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.3;
    z-index: 0;
    pointer-events: none;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem;
    background: var(--bg-darker);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand p {
    color: var(--text-gray);
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--primary);
    color: #000;
}

.footer-links h4 {
    margin-bottom: 1.25rem;
    font-size: 1rem;
    font-weight: 700;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-gray);
    font-size: 0.9375rem;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-gray);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        margin-top: 3rem;
    }
    
    .phone-mockup {
        width: 240px;
    }
    
    .floating-card {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        padding-top: 100px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-stats {
        gap: 1.25rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card.featured {
        grid-column: span 1;
    }
    
    .steps-grid {
        flex-direction: column;
        gap: 2rem;
    }
    
    .step-connector {
        transform: rotate(90deg);
    }
    
    .step-card {
        flex: none;
        width: 100%;
        max-width: 320px;
    }
    
    .screenshots-container {
        overflow-x: auto;
        justify-content: flex-start;
        scroll-snap-type: x mandatory;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .screenshots-container::-webkit-scrollbar {
        display: none;
    }
    
    .screenshot-item {
        flex: 0 0 200px;
        scroll-snap-align: start;
    }
    
    .screenshot-item {
        flex: 0 0 200px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .stat-divider {
        display: none;
    }
    
    .stat-item {
        flex: 0 0 30%;
    }
    
    .btn-app-store {
        width: 100%;
        justify-content: center;
    }
}