/* ============================================
   CSS Variables - Theme Colors from AppColors
   ============================================ */
:root {
    /* Gradient colors */
    --gradient-1: #7B29CD;
    --gradient-2: #870DD1;
    --gradient-3: #5B30F6;
    --gradient-4: #8054F2;
    
    /* Dark backgrounds */
    --dark-bg-1: #242424;
    --dark-bg-2: #151515;
    
    /* Purple theme */
    --purple: #6D28EB;
    --purple-dark: #330C79;
    
    /* Text colors */
    --text-primary: #FFFFFF;
    --text-secondary: #BDBDBD;
    --text-disabled: #757575;
    
    /* Other colors */
    --background: #0F1017;
    --card-bg: rgba(37, 23, 79, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 20px;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 16, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-3), var(--gradient-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link:hover {
    color: var(--gradient-3);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-1), var(--gradient-4));
    transition: width 0.3s ease;
}

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

.cta-nav {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-3));
    border-radius: 8px;
    font-weight: 600;
}

.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(123, 41, 205, 0.4);
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        var(--gradient-1) 0%, 
        var(--gradient-2) 38%, 
        var(--gradient-3) 68%, 
        var(--gradient-4) 96%
    );
    opacity: 0.15;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        transform: scale(1) rotate(0deg);
    }
    50% {
        transform: scale(1.1) rotate(5deg);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary), var(--gradient-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.5;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.hero-badges {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 24px;
}

.badge-text {
    font-size: 14px;
    font-weight: 600;
}

/* Floating shapes */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-4));
    opacity: 0.1;
    border-radius: 50%;
    filter: blur(40px);
}

.shape-1 {
    width: 400px;
    height: 400px;
    top: 10%;
    left: -10%;
    animation: float 20s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    bottom: 10%;
    right: -5%;
    animation: float 15s ease-in-out infinite reverse;
}

.shape-3 {
    width: 250px;
    height: 250px;
    top: 50%;
    right: 20%;
    animation: float 25s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(5deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-3));
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(123, 41, 205, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(123, 41, 205, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--gradient-3);
}

.btn-secondary:hover {
    background: var(--gradient-3);
    transform: translateY(-2px);
}

.btn-premium {
    background: linear-gradient(135deg, var(--purple), var(--gradient-4));
    color: var(--text-primary);
    padding: 18px 48px;
    font-size: 18px;
    box-shadow: 0 6px 25px rgba(109, 40, 235, 0.4);
}

.btn-premium:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(109, 40, 235, 0.6);
}

.btn-pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(123, 41, 205, 0.3);
    }
    50% {
        box-shadow: 0 8px 40px rgba(123, 41, 205, 0.6);
    }
}

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary), var(--gradient-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: linear-gradient(180deg, var(--background), var(--dark-bg-1));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--gradient-3);
    box-shadow: 0 15px 40px rgba(123, 41, 205, 0.3);
}

.feature-icon {
    margin-bottom: 24px;
    display: inline-block;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
    background: var(--dark-bg-1);
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 60px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 280px;
    flex: 1;
    min-width: 250px;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    box-shadow: 0 8px 30px rgba(123, 41, 205, 0.4);
}

.step-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.step-arrow {
    font-size: 48px;
    color: var(--gradient-3);
    opacity: 0.5;
}

/* ============================================
   Premium Section
   ============================================ */
.premium {
    background: linear-gradient(135deg, 
        rgba(123, 41, 205, 0.1) 0%, 
        rgba(91, 48, 246, 0.05) 100%
    );
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.premium-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.premium-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--purple), var(--gradient-4));
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.premium-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary), var(--gradient-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.premium-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.premium-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.premium-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-align: left;
}

.check-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-4));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.premium-feature-text {
    font-size: 18px;
    font-weight: 600;
}

/* ============================================
   Download Section
   ============================================ */
.download {
    background: var(--background);
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.store-button {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition-smooth);
    min-width: 200px;
}

.store-button:hover {
    transform: translateY(-5px);
    border-color: var(--gradient-3);
    box-shadow: 0 10px 30px rgba(123, 41, 205, 0.3);
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.store-small {
    font-size: 12px;
    color: var(--text-secondary);
}

.store-large {
    font-size: 18px;
    font-weight: 700;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--dark-bg-2);
    padding: 60px 20px 30px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--gradient-3);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-4));
    border-color: transparent;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================
   Animation Classes
   ============================================ */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

.fade-in.delay-1 {
    animation-delay: 0.2s;
}

.fade-in.delay-2 {
    animation-delay: 0.4s;
}

.fade-in.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll animations (applied by JS) */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="fade-up"].animated {
    transform: translateY(0);
}

[data-animate="slide-in-left"] {
    transform: translateX(-30px);
}

[data-animate="slide-in-left"].animated {
    transform: translateX(0);
}

[data-animate="fade-in"] {
    transform: none;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .cta-nav {
        padding: 8px 16px;
    }
    
    .hero {
        min-height: 90vh;
        padding-top: 100px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .step-arrow {
        transform: rotate(90deg);
        font-size: 36px;
    }
    
    .premium-features {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .store-button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px 15px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .badge-item {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
}

@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
}