/*
=============================================
  Elias Video Downloader - Modern CSS
  Version: 2.0
  Design: Dark Theme with Purple/Blue Gradients
  Font: Inter (Google Fonts)
=============================================
*/

/* ========================================
   CSS Variables (Color Palette)
   ======================================== */
:root {
    /* Primary Colors */
    --color-primary: #3B82F6;
    --color-primary-dark: #2563EB;
    --color-secondary: #A855F7;
    --color-secondary-dark: #9333EA;
    
    /* Accent Colors */
    --color-accent-pink: #EC4899;
    --color-accent-green: #10B981;
    --color-accent-orange: #F59E0B;
    --color-accent-red: #EF4444;
    
    /* Background Colors */
    --color-bg-primary: #0F172A;
    --color-bg-secondary: #1E293B;
    --color-bg-tertiary: #334155;
    --color-bg-card: #1E293B;
    --color-bg-card-hover: #2D3B4E;
    
    /* Text Colors */
    --color-text-primary: #F1F5F9;
    --color-text-secondary: #CBD5E1;
    --color-text-muted: #94A3B8;
    
    /* Border Colors */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(255, 255, 255, 0.2);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3B82F6 0%, #A855F7 100%);
    --gradient-secondary: linear-gradient(135deg, #EC4899 0%, #A855F7 100%);
    --gradient-blue: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    --gradient-purple: linear-gradient(135deg, #A855F7 0%, #9333EA 100%);
    --gradient-pink: linear-gradient(135deg, #EC4899 0%, #F472B6 100%);
    --gradient-green: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-orange: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --gradient-red: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Font Families */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.1) 0px, transparent 50%);
    overflow-x: hidden;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

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

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

/* ========================================
   Utility Classes
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.gradient-blue {
    background: var(--gradient-blue);
}

.gradient-purple {
    background: var(--gradient-purple);
}

.gradient-pink {
    background: var(--gradient-pink);
}

.gradient-green {
    background: var(--gradient-green);
}

.gradient-orange {
    background: var(--gradient-orange);
}

.gradient-red {
    background: var(--gradient-red);
}

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    z-index: var(--z-tooltip);
    border-radius: var(--radius-md);
}

.skip-link:focus {
    top: var(--spacing-xs);
}

/* ========================================
   Navigation Bar
   ======================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-base);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
}

.brand-icon {
    font-size: var(--text-2xl);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: var(--font-medium);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-toggle:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
    color: var(--color-text-primary);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-bg-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    backdrop-filter: blur(8px);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10B981;
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #3B82F6;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #F59E0B;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.version-info {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.version-icon {
    font-size: var(--text-base);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
    transform: translateY(-2px);
}

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

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

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

.btn-block {
    display: flex;
    width: 100%;
    justify-content: center;
}

.btn-icon {
    font-size: 1.2em;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

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

/* ========================================
   Features Section
   ======================================== */
.features {
    background: rgba(30, 41, 59, 0.3);
}

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

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: white;
}

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

.feature-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   How It Works Section
   ======================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
}

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

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-
50%);
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: white;
    z-index: 1;
}

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

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

.step-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Screenshots Section
   ======================================== */
.screenshots {
    background: rgba(30, 41, 59, 0.3);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.screenshot-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.screenshot-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-border-hover);
}

.screenshot-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.screenshot-card:hover img {
    transform: scale(1.05);
}

.screenshot-caption {
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
}

.caption-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

.caption-title {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-xs);
}

.caption-desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

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

.version-badge-large {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: #10B981;
    margin-bottom: var(--spacing-md);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.download-card {
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    position: relative;
    transition: all var(--transition-base);
}

.download-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.download-card.recommended {
    border-color: rgba(59, 130, 246, 0.5);
}

.download-card.recommended:hover {
    border-color: rgba(59, 130, 246, 0.8);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
}

.recommended-badge,
.no-install-badge {
    position: absolute;
    top: -12px;
    left: 50%; 
    transform: translateX(-50%); 
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    letter-spacing: 0.5px;
}


.recommended-badge {
    background: var(--gradient-blue);
    color: white;
}

.no-install-badge {
    background: var(--gradient-pink);
    color: white;
}

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

.download-title {
    text-align: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-xs);
}

.download-size {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: var(--text-sm);
}

.download-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.download-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
}

.download-features li svg {
    color: #10B981;
    flex-shrink: 0;
}

/* System Requirements */
.system-requirements {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.requirements-title {
    text-align: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-lg);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.req-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

/* ========================================
   What's New Section
   ======================================== */
.whats-new {
    background: rgba(30, 41, 59, 0.3);
}

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

.update-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.update-item:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
}

.update-item svg {
    color: #10B981;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    background: var(--color-bg-primary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item[open] {
    border-color: var(--color-border-hover);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Legal Notice Section
   ======================================== */
.legal-notice {
    background: rgba(30, 41, 59, 0.3);
}

.notice-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: rgba(245, 158, 11, 0.1);
    border: 2px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-xl);
    max-width: 900px;
    margin: 0 auto;
}

.notice-icon {
    flex-shrink: 0;
    color: #F59E0B;
}

.notice-title {
    font-size: var(--text-xl);
    color: #F59E0B;
    margin-bottom: var(--spacing-sm);
}

.notice-text {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

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

.footer-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-links-title,
.footer-developer-title {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

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

.footer-email {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    margin-top: var(--spacing-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.back-to-top {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.back-to-top:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
        --text-3xl: 1.5rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 60px);
        flex-direction: column;
        align-items: flex-start;
        background: var(--color-bg-secondary);
        padding: var(--spacing-lg);
        transition: right var(--transition-base);
        border-left: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .features-grid,
    .steps-grid,
    .screenshots-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .notice-card {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--text-base);
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Add scroll animations */
.feature-card,
.step-card,
.screenshot-card,
.download-card,
.update-item,
.faq-item {
    animation: fadeIn 0.6s ease-out;
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .navbar,
    .hero-buttons,
    .back-to-top,
    .nav-toggle {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ========================================
   Accessibility
   ======================================== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
/* ========================================
   Modal Styles
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    cursor: pointer;
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
    z-index: 1;
}

.modal.active .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    font-size: var(--text-2xl);
    margin: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.modal-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
    overflow-y: auto;
    max-height: calc(85vh - 80px);
}

.modal-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.modal-section {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-section:last-child {
    border-bottom: none;
}

.modal-section h3 {
    font-size: var(--text-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.modal-section p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.modal-list {
    list-style: none;
    padding: 0;
}

.modal-list li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.modal-link {
    color: var(--color-primary);
    font-weight: var(--font-semibold);
}

.modal-link:hover {
    text-decoration: underline;
}

/* Modal Scrollbar */
.modal-body::-webkit-scrollbar {
    width: 8px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--color-bg-card);
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-md);
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-container {
        width: 95%;
        max-height: 90vh;
    }
    
    .modal-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .modal-body {
        padding: var(--spacing-lg);
    }
}

/* ========================================
   Dark Mode (Already Default)
   ======================================== */
/* This theme is dark by default */

/* ========================================
   End of Stylesheet
   ======================================== */