/* 
 * Main Stylesheet for aiporngenerater.love
 * A unique design with purple/blue gradients and modern layout
 */

/* Base Styles & CSS Variables */
:root {
    /* Main Colors */
    --primary: #6C63FF;
    --secondary: #FF6CAB;
    --dark-bg: #1E1E2E;
    --light-bg: #2D2D42;
    --text-light: #FFFFFF;
    --text-muted: #B8B8D0;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6C63FF, #FF6CAB);
    --gradient-dark: linear-gradient(135deg, #191927, #2D2D42);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.25rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--secondary);
}

img, svg {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(108, 99, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 20px rgba(108, 99, 255, 0.4);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--secondary);
    color: var(--text-light);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(30, 30, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    margin-bottom: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background: var(--text-light);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding-top: calc(70px + var(--spacing-xl));
    padding-bottom: var(--spacing-xl);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

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

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

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

.feature-card {
    background: var(--dark-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: transform var(--transition-normal);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-color: var(--primary);
}

.feature-icon {
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

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

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

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
}

.step-number {
    background: var(--gradient-primary);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--text-muted);
}

/* Step connector lines */
.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 20px;
    top: 40px;
    height: calc(100% + var(--spacing-md) - 40px);
    width: 2px;
    background: var(--border-color);
    z-index: -1;
}

/* CTA */
.cta {
    background: var(--gradient-dark);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
}

.cta h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--light-bg);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo p {
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.footer-links h4 {
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 30px;
    height: 2px;
    background: var(--secondary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

.copyright {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Media Queries */
@media (max-width: 991px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-content h2 {
        font-size: 2.25rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-logo {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-content p {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--dark-bg);
        padding: var(--spacing-md) 0;
        gap: 0;
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu a:hover {
        background: rgba(108, 99, 255, 0.1);
    }
    
    .nav-menu li:last-child a {
        border-bottom: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
    
    .step {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
    
    .step-number {
        margin-bottom: var(--spacing-xs);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 576px) {
    .container {
        width: 95%;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .cta {
        padding: var(--spacing-md);
    }
    
    .cta h3 {
        font-size: 1.5rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Accessibility Improvements */
:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}