/**
 * JAT'S DATA RESELLING - Main Stylesheet
 * Luxury, modern, responsive design with glassmorphism
 */

:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-luxury: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);

    /* Light Mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --border-color: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
}

/* Dark Mode */
body.dark-mode {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-lg: rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: var(--transition);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn-primary,
.btn-outline,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Glassmorphism Effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

body.dark-mode .glass-effect {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-luxury);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Gradient Background */
.gradient-bg {
    background: var(--gradient-primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg) 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.8);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    margin: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

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

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-3xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 700px;
    margin: 0 auto;
}

.stat-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Animated Background */
.hero .gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    z-index: 1;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background: var(--gradient-primary);
    }
    50% {
        background: var(--gradient-secondary);
    }
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 6px var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.feature-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--text-secondary);
}

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px var(--shadow-lg);
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-3xl) 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.step-card {
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: white;
}

.step-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.step-description {
    color: var(--text-secondary);
}

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.cta-content {
    text-align: center;
    padding: var(--spacing-3xl);
    border-radius: var(--radius-2xl);
}

.cta-title {
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-secondary);
}

.footer-heading {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section a {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Mobile Navigation Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid var(--primary);
    border-radius: 5px;
    cursor: pointer;
    padding: 10px;
    width: 44px;
    height: 44px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: var(--transition);
    display: block;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* Toast Notifications */
.toast {
    position: fixed;
    top: 90px;
    right: 20px;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    z-index: 10000;
    min-width: 280px;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-error {
    border-left: 4px solid var(--error);
}

.toast-info {
    border-left: 4px solid var(--info);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.toast-icon {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.toast-message {
    color: var(--text-primary);
    font-weight: 500;
}

/* Text Center Utility */
.text-center {
    text-align: center;
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    /* Container */
    .container {
        padding: 0 var(--spacing-md);
    }

    /* Typography */
    h1 {
        font-size: var(--font-size-3xl);
    }

    h2 {
        font-size: var(--font-size-2xl);
    }

    h3 {
        font-size: var(--font-size-xl);
    }

    /* Navbar Mobile */
    .navbar {
        padding: var(--spacing-md) 0;
    }

    .nav-brand .logo {
        font-size: var(--font-size-lg);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        transform: translateY(-120%);
        opacity: 0;
        transition: var(--transition);
        border-bottom: 3px solid var(--primary);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-link {
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--border-color);
    }

    /* Hero Section Mobile */
    .hero {
        min-height: 90vh;
        padding-top: 70px;
    }

    .hero-content {
        padding: var(--spacing-lg);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-md);
    }

    .hero-subtitle {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xl);
    }

    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-outline {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .stat-card {
        padding: var(--spacing-lg);
    }

    .stat-number {
        font-size: var(--font-size-2xl);
    }

    /* Features Mobile */
    .features {
        padding: var(--spacing-2xl) 0;
    }

    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-xl);
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .feature-card {
        padding: var(--spacing-xl);
    }

    .feature-icon {
        width: 60px;
        height: 60px;
    }

    .feature-icon svg {
        width: 30px;
        height: 30px;
    }

    /* How It Works Mobile */
    .how-it-works {
        padding: var(--spacing-2xl) 0;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .step-number {
        width: 60px;
        height: 60px;
        font-size: var(--font-size-2xl);
    }

    /* CTA Mobile */
    .cta {
        padding: var(--spacing-2xl) 0;
    }

    .cta-content {
        padding: var(--spacing-xl);
    }

    /* Footer Mobile */
    .footer {
        padding: var(--spacing-2xl) 0 var(--spacing-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    /* Buttons Mobile */
    .btn-primary,
    .btn-outline {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
        width: 100%;
        justify-content: center;
    }

    .btn-large {
        padding: var(--spacing-lg) var(--spacing-xl);
        font-size: var(--font-size-base);
    }

    /* Toast Mobile */
    .toast {
        right: 10px;
        left: 10px;
        min-width: auto;
        top: 80px;
    }
}

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-xs);
    }

    .section-title {
        font-size: var(--font-size-xl);
    }

    .feature-card,
    .step-card {
        padding: var(--spacing-lg);
    }

    .stat-number {
        font-size: var(--font-size-xl);
    }
}

/* Glow Effect */
.glow {
    text-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}