/* ============================================
   📚 STUDYHUB PROMOTIONAL WEBSITE
   🎨 STYLESHEET - PART 1 OF 2
   ============================================
   
   TABLE OF CONTENTS:
   ------------------
   1. CSS Variables & Root
   2. Reset & Base Styles
   3. Typography
   4. Utility Classes
   5. Buttons
   6. Preloader
   7. Cookie Consent
   8. Floating Social Buttons
   9. Back to Top Button
   10. Navbar
   11. Mobile Menu
   12. Hero Section
   13. Featured On Section
   14. Features Section
   
   ============================================ */

/* ============================================
   1. CSS VARIABLES & ROOT
   ============================================ */
:root {
    /* Primary Colors */
    --primary: #6C63FF;
    --primary-light: #8B85FF;
    --primary-dark: #5A52D5;
    --primary-rgb: 108, 99, 255;
    
    /* Secondary Colors */
    --secondary: #FF6B6B;
    --secondary-light: #FF8E8E;
    --secondary-dark: #E55A5A;
    
    /* Accent Colors */
    --accent: #4ECDC4;
    --accent-light: #6FE7DF;
    --accent-dark: #3DB5AD;
    
    /* Status Colors */
    --success: #00D9A5;
    --success-light: #33E3B9;
    --success-dark: #00B88A;
    
    --warning: #FFE66D;
    --warning-light: #FFED99;
    --warning-dark: #E6CF5E;
    
    --error: #FF5252;
    --error-light: #FF7B7B;
    --error-dark: #E64545;
    
    --info: #4FACFE;
    --info-light: #7AC0FE;
    --info-dark: #3A9AE8;
    
    /* Neutral Colors - Light Theme */
    --bg-primary: #0F0F1A;
    --bg-secondary: #1A1A2E;
    --bg-tertiary: #252542;
    --bg-card: rgba(255, 255, 255, 0.05);
    
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --text-muted: rgba(255, 255, 255, 0.3);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-warning: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-rainbow: linear-gradient(90deg, #6C63FF, #FF6B6B, #4ECDC4, #FFE66D, #6C63FF);
    
    /* Glass Effects */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 25px 80px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 40px 100px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 60px rgba(108, 99, 255, 0.4);
    --shadow-glow-sm: 0 0 30px rgba(108, 99, 255, 0.3);
    --shadow-inset: inset 0 2px 10px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-2xl: 40px;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    
    /* Font Families */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Consolas', 'Monaco', monospace;
    
    /* 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;
    --text-7xl: 4.5rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s ease;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-toast: 800;
    --z-preloader: 900;
    --z-max: 9999;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 5%;
    
    /* Header Height */
    --header-height: 80px;
    --header-height-scrolled: 70px;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  overflow-x: hidden;
}

/* Hero section */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.5rem;
}

/* Scroll lock only while loading */
body.loading {
  overflow: hidden;
}

/* Fullscreen loader */
.app-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #050816;
}
/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-secondary);
}

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}

::-moz-selection {
    background: var(--primary);
    color: white;
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

/* Images */
img,
svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul,
ol {
    list-style: none;
}

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

/* Inputs */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--text-primary);
}

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

p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

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

.gradient-text-white {
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   4. UTILITY CLASSES
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary-light);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: var(--text-lg);
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ============================================
   5. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-decoration: none;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
}

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

.btn-block {
    width: 100%;
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow-sm);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border-color: var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-3px);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 0 30px rgba(0, 217, 165, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 217, 165, 0.4);
}

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

.btn-white:hover {
    background: rgba(255,255,255,0.9);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-outline-white:hover {
    background: white;
    color: var(--primary);
    transform: translateY(-3px);
}

.btn-light {
    background: rgba(255,255,255,0.1);
    color: white;
    border-color: rgba(255,255,255,0.2);
}

.btn-light:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

/* ============================================
   6. PRELOADER
   ============================================ */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.preloader-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.preloader-icon {
    font-size: 4rem;
    animation: bounce 1s ease infinite;
}

.preloader-text {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.preloader-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
}

.spinner-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
}

.spinner-ring:nth-child(1) {
    border-top-color: var(--primary);
    animation-delay: 0s;
}

.spinner-ring:nth-child(2) {
    border-right-color: var(--secondary);
    animation-delay: 0.2s;
}

.spinner-ring:nth-child(3) {
    border-bottom-color: var(--accent);
    animation-delay: 0.4s;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.preloader-progress {
    margin-bottom: var(--space-lg);
}

.progress-bar {
    width: 200px;
    height: 6px;
    background: var(--glass-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto var(--space-sm);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

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

.preloader-tips {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

/* ============================================
   7. COOKIE CONSENT
   ============================================ */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-lg);
    z-index: var(--z-fixed);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
    backdrop-filter: blur(20px);
}

.cookie-consent.show {
    transform: translateY(0);
}

.cookie-consent.hidden {
    display: none;
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.cookie-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.cookie-text {
    flex: 1;
    min-width: 250px;
}

.cookie-text h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xs);
}

.cookie-text p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.cookie-buttons {
    display: flex;
    gap: var(--space-md);
    flex-shrink: 0;
}

.cookie-btn {
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: var(--transition-base);
}

.cookie-btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.cookie-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-sm);
}

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

.cookie-btn-secondary:hover {
    background: var(--glass-bg-hover);
}

/* ============================================
   8. FLOATING SOCIAL BUTTONS
   ============================================ */
.floating-social {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: var(--z-fixed);
}

.floating-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    z-index: 2;
}

.floating-toggle:hover {
    transform: scale(1.1);
}

.floating-toggle i:last-child {
    display: none;
}

.floating-social.active .floating-toggle i:first-child {
    display: none;
}

.floating-social.active .floating-toggle i:last-child {
    display: block;
}

.floating-social.active .floating-toggle {
    background: var(--gradient-secondary);
}

.floating-options {
    position: absolute;
    bottom: 70px;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
}

.floating-social.active .floating-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.floating-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.floating-option:hover {
    transform: translateX(-5px);
}

.floating-option i {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.floating-option.whatsapp i {
    background: #25D366;
}

.floating-option.telegram i {
    background: #0088CC;
}

.floating-option.discord i {
    background: #5865F2;
}

.floating-option.email i {
    background: var(--gradient-primary);
}

/* ============================================
   9. BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-sm);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* Hide back-to-top when floating social is visible */
.floating-social.active ~ .back-to-top {
    opacity: 0;
    visibility: hidden;
}

/* ============================================
   10. NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: var(--z-sticky);
    transition: var(--transition-base);
}

.navbar.scrolled {
    height: var(--header-height-scrolled);
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.8rem;
}

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

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

.nav-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    padding: var(--space-sm) 0;
    transition: var(--transition-base);
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-theme-toggle {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
}

.nav-theme-toggle:hover {
    background: var(--glass-bg-hover);
    transform: rotate(15deg);
}

.nav-theme-toggle i:last-child {
    display: none;
}

/* Dark mode toggle states would go here */

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--gradient-primary);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    text-decoration: none;
    box-shadow: var(--shadow-glow-sm);
    transition: var(--transition-base);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    cursor: pointer;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

/* ============================================
   11. MOBILE MENU
   ============================================ */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: var(--z-modal);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100%);
    transition: var(--transition-slow);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2xl);
}

.mobile-menu-close {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
}

.mobile-menu-close:hover {
    background: var(--error);
}

.mobile-nav-links {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    transition: var(--transition-base);
}

.mobile-nav-links a:hover {
    background: var(--glass-bg-hover);
    transform: translateX(5px);
}

.mobile-nav-links a i {
    width: 25px;
    color: var(--primary);
}

.mobile-menu-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.mobile-menu-social {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.mobile-menu-social a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.mobile-menu-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* ============================================
   12. HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

/* Hero Background */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary);
    top: 50%;
    right: -150px;
    animation-delay: 5s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -100px;
    left: 30%;
    animation-delay: 10s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(50px, 50px) rotate(90deg); }
    50% { transform: translate(0, 100px) rotate(180deg); }
    75% { transform: translate(-50px, 50px) rotate(270deg); }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-text {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-xl);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(108, 99, 255, 0.4); }
    50% { box-shadow: 0 0 0 15px rgba(108, 99, 255, 0); }
}

.badge-icon {
    font-size: 1.2rem;
}

.badge-text {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
}

.badge-new {
    padding: 2px 8px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    color: white;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: var(--font-black);
    line-height: 1.1;
    margin-bottom: var(--space-xl);
}

.typing-wrapper {
    display: block;
    font-size: var(--text-4xl);
    color: var(--text-secondary);
}

.typing-text {
    color: var(--primary);
}

.typing-cursor {
    color: var(--primary);
    animation: blink 0.7s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-2xl);
}

.hero-description strong {
    color: var(--text-primary);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

/* Hero Trust Indicators */
.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--glass-border);
}

.trust-avatars {
    display: flex;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: 2px solid var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: -10px;
}

.avatar-more {
    background: var(--bg-secondary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    color: var(--primary);
}

.trust-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.trust-stars {
    display: flex;
    align-items: center;
    gap: 2px;
    color: var(--warning);
    font-size: var(--text-sm);
}

.trust-stars span {
    margin-left: var(--space-sm);
    color: var(--text-primary);
    font-weight: var(--font-semibold);
}

.trust-text p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.trust-text strong {
    color: var(--text-primary);
}

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

.phone-mockup {
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 300px;
    height: 620px;
    background: linear-gradient(145deg, #2a2a4a, #1a1a2e);
    border-radius: 45px;
    padding: 12px;
    box-shadow: var(--shadow-xl), inset 0 0 60px rgba(108, 99, 255, 0.1);
    border: 2px solid var(--glass-border);
    animation: floatPhone 6s ease-in-out infinite;
}

@keyframes floatPhone {
    0%, 100% { transform: translateY(0) rotate(3deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 28px;
    background: #000;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: 35px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 45px 15px 15px;
}

.screen-logo {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.screen-icons {
    display: flex;
    gap: var(--space-md);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.screen-greeting {
    padding: 0 15px 15px;
}

.screen-greeting h3 {
    font-size: var(--text-base);
    margin-bottom: 4px;
}

.screen-greeting p {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.screen-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    padding: 0 15px 15px;
}

.screen-cat {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    transition: var(--transition-base);
}

.screen-cat:hover {
    background: var(--glass-bg-hover);
    transform: scale(1.05);
}

.screen-cat i {
    font-size: 1.2rem;
    margin-bottom: 4px;
    display: block;
}

.screen-cat:nth-child(1) i { color: var(--primary); }
.screen-cat:nth-child(2) i { color: var(--secondary); }
.screen-cat:nth-child(3) i { color: var(--accent); }
.screen-cat:nth-child(4) i { color: var(--warning); }

.screen-cat span {
    font-size: 10px;
    font-weight: var(--font-medium);
    color: var(--text-secondary);
}

.screen-card {
    margin: 0 15px;
    padding: 12px;
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.2), rgba(118, 75, 162, 0.2));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.card-thumb {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.card-info {
    flex: 1;
}

.card-info h4 {
    font-size: var(--text-sm);
    margin-bottom: 2px;
}

.card-info p {
    font-size: 10px;
    color: var(--text-tertiary);
}

.card-btn {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
}

.screen-nav {
    margin-top: auto;
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background: var(--glass-bg);
    border-top: 1px solid var(--glass-border);
}

.nav-item {
    color: var(--text-tertiary);
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.nav-item.active {
    color: var(--primary);
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    animation: floatCard 4s ease-in-out infinite;
    z-index: 1;
}

.floating-card i {
    font-size: 1.2rem;
}

.card-1 {
    top: 5%;
    right: 0;
    animation-delay: 0s;
}

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

.card-2 {
    top: 35%;
    left: -50px;
    animation-delay: 1s;
}

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

.card-3 {
    bottom: 30%;
    right: -30px;
    animation-delay: 2s;
}

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

.card-4 {
    bottom: 10%;
    left: -30px;
    animation-delay: 3s;
}

.card-4 i { color: var(--primary); }

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-4xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
}

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

.stat-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--space-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.stat-number {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--space-xs);
}

.stat-number::after {
    content: '+';
    -webkit-text-fill-color: var(--primary);
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    animation: fadeInUp 1s ease 1s both;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-tertiary);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; top: 8px; }
    50% { opacity: 0; top: 20px; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ============================================
   13. FEATURED ON SECTION
   ============================================ */
.featured-on {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.featured-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.featured-header h2 {
    font-size: var(--text-xl);
    color: var(--text-secondary);
}

.featured-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-tertiary);
    transition: var(--transition-base);
}

.logo-item:hover {
    color: var(--text-primary);
    transform: translateY(-3px);
}

.logo-item i {
    font-size: 2rem;
}

.logo-item span {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.featured-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.badge-item:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.badge-item i {
    color: var(--warning);
}

/* ============================================
   14. FEATURES SECTION
   ============================================ */
.features {
    padding: var(--space-4xl) 0;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: var(--space-xl);
}

.gradient-1 { background: var(--gradient-primary); }
.gradient-2 { background: var(--gradient-secondary); }
.gradient-3 { background: var(--gradient-accent); }
.gradient-4 { background: var(--gradient-success); }
.gradient-5 { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.gradient-6 { background: linear-gradient(135deg, #5ee7df 0%, #b490ca 100%); }

.feature-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: var(--leading-relaxed);
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    padding: var(--space-xs) var(--space-md);
    background: rgba(108, 99, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--primary-light);
}


/* ============================================
   📚 STUDYHUB PROMOTIONAL WEBSITE
   🎨 STYLESHEET - PART 2 OF 2
   ============================================
   
   TABLE OF CONTENTS:
   ------------------
   15. Resources Section
   16. Courses Marquee
   17. Video Demo Section
   18. Tools Section
   19. Screenshots Section
   20. QR Code Section
   21. Roadmap Section
   22. Why Choose Section
   23. FAQ Section
   24. Testimonials Section
   25. Community Section
   26. Support/Donate Section
   27. Newsletter Section
   28. Contact Section
   29. Final CTA Section
   30. Developer Section
   31. Footer
   32. Toast Notifications
   33. Animations
   34. Responsive Styles
   
   ============================================ */

/* ============================================
   15. RESOURCES SECTION
   ============================================ */
.resources {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.resource-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.resource-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.resource-card:hover::before {
    opacity: 0.1;
}

.resource-card > * {
    position: relative;
    z-index: 1;
}

.resource-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.resource-card:nth-child(1) .resource-icon { background: var(--gradient-primary); }
.resource-card:nth-child(2) .resource-icon { background: var(--gradient-secondary); }
.resource-card:nth-child(3) .resource-icon { background: var(--gradient-accent); }
.resource-card:nth-child(4) .resource-icon { background: var(--gradient-success); }

.resource-content h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.resource-content p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.resource-count {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.resource-count .count {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.resource-count .count::after {
    content: '+';
}

.resource-count .label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.resource-hover {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(to top, var(--bg-secondary), transparent);
    transform: translateY(100%);
    transition: var(--transition-base);
}

.resource-card:hover .resource-hover {
    transform: translateY(0);
}

/* ============================================
   16. COURSES MARQUEE
   ============================================ */
.courses-marquee {
    padding: var(--space-3xl) 0;
    overflow: hidden;
    background: var(--bg-primary);
}

.marquee-track {
    display: flex;
    width: max-content;
    margin-bottom: var(--space-lg);
}

.marquee-content {
    display: flex;
    gap: var(--space-lg);
    animation: marqueeScroll 40s linear infinite;
}

.marquee-left .marquee-content {
    animation-direction: normal;
}

.marquee-right .marquee-content {
    animation-direction: reverse;
}

.marquee-track:hover .marquee-content {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.course-tag {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    white-space: nowrap;
    transition: var(--transition-base);
}

.course-tag:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: scale(1.05);
}

.course-tag i {
    font-size: 1rem;
    color: var(--primary);
}

.course-tag:hover i {
    color: white;
}

/* ============================================
   17. VIDEO DEMO SECTION
   ============================================ */
.video-demo {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--glass-border);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    cursor: pointer;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.video-thumbnail:hover .video-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.play-button {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-base);
}

.play-button i {
    margin-left: 8px;
}

.video-thumbnail:hover .play-button {
    transform: scale(1.1);
}

.video-duration {
    position: absolute;
    bottom: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 0, 0, 0.8);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: white;
}

.video-iframe {
    display: none;
    aspect-ratio: 16/9;
}

.video-iframe.active {
    display: block;
}

.video-iframe.active + .video-thumbnail {
    display: none;
}

.video-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.video-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.video-feature i {
    color: var(--success);
}

/* ============================================
   18. TOOLS SECTION
   ============================================ */
.tools {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.tool-card {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.tool-card:hover {
    transform: translateX(10px);
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-md);
}

.tool-icon {
    width: 70px;
    height: 70px;
    min-width: 70px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.tool-card:nth-child(1) .tool-icon { background: var(--gradient-primary); }
.tool-card:nth-child(2) .tool-icon { background: var(--gradient-secondary); }
.tool-card:nth-child(3) .tool-icon { background: var(--gradient-accent); }
.tool-card:nth-child(4) .tool-icon { background: var(--gradient-success); }

.tool-content h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
}

.tool-content > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: var(--leading-relaxed);
}

.tool-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.tool-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.tool-features li i {
    color: var(--success);
    font-size: var(--text-xs);
}

/* ============================================
   19. SCREENSHOTS SECTION
   ============================================ */
.screenshots {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
    overflow: hidden;
}

.screenshots-slider {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    flex-wrap: wrap;
}

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

.screenshot-phone {
    width: 220px;
    height: 450px;
    background: linear-gradient(145deg, #2a2a4a, #1a1a2e);
    border-radius: 35px;
    padding: 10px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--glass-border);
    transition: var(--transition-base);
    margin-bottom: var(--space-md);
}

.screenshot-item:hover .screenshot-phone {
    transform: scale(1.05) rotate(-2deg);
}

.screenshot-item:nth-child(even):hover .screenshot-phone {
    transform: scale(1.05) rotate(2deg);
}

.screenshot-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-tertiary);
    border-radius: 28px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.screenshot-screen.dark-screen {
    background: #0a0a14;
}

.screen-header-mini {
    padding: var(--space-md);
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.screen-content {
    flex: 1;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.skeleton {
    background: linear-gradient(90deg, var(--glass-bg) 25%, rgba(255,255,255,0.1) 50%, var(--glass-bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-dark {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 200% 100%;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-lg { height: 80px; }
.skeleton-md { height: 50px; }
.skeleton-sm { height: 30px; }
.skeleton-card { height: 100px; }
.skeleton-tool { height: 60px; }
.skeleton-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto;
}

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

/* ============================================
   20. QR CODE SECTION
   ============================================ */
.qr-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.qr-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.qr-text h2 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-lg);
}

.qr-text > p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.qr-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.qr-benefits li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--text-base);
    color: var(--text-secondary);
}

.qr-benefits li i {
    color: var(--success);
    font-size: 1.2rem;
}

.qr-code-wrapper {
    display: flex;
    justify-content: center;
}

.qr-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.qr-placeholder {
    font-size: 8rem;
    color: var(--primary);
}

.qr-code canvas,
.qr-code img {
    width: 100% !important;
    height: 100% !important;
}

.qr-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.qr-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

/* ============================================
   21. ROADMAP SECTION
   ============================================ */
.roadmap {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.roadmap-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--glass-border);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
}

.timeline-item {
    display: flex;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    align-items: flex-end;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 4px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-secondary);
    z-index: 1;
}

.timeline-item.completed .timeline-marker {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.timeline-item.current .timeline-marker {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

.timeline-item.upcoming .timeline-marker {
    background: var(--bg-tertiary);
    border-color: var(--glass-border);
    color: var(--text-tertiary);
}

.timeline-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: calc(50% - 50px);
}

.timeline-date {
    font-size: var(--text-sm);
    color: var(--primary);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-sm);
}

.timeline-content h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-sm);
}

.timeline-content p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.timeline-tags {
    display: flex;
    gap: var(--space-sm);
}

.timeline-tags .tag {
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
}

.tag.completed {
    background: rgba(0, 217, 165, 0.2);
    color: var(--success);
}

.tag.in-progress {
    background: rgba(108, 99, 255, 0.2);
    color: var(--primary);
}

.tag.upcoming {
    background: var(--glass-bg);
    color: var(--text-tertiary);
}

.roadmap-cta {
    text-align: center;
    margin-top: var(--space-3xl);
}

.roadmap-cta p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

/* ============================================
   22. WHY CHOOSE SECTION
   ============================================ */
.why-choose {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.why-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    transition: var(--transition-base);
}

.why-card:hover {
    transform: translateY(-10px);
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-lg);
}

.why-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto var(--space-xl);
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.why-card:nth-child(2) .why-icon { background: var(--gradient-accent); }
.why-card:nth-child(3) .why-icon { background: var(--gradient-success); }
.why-card:nth-child(4) .why-icon { background: var(--gradient-secondary); }
.why-card:nth-child(5) .why-icon { background: var(--gradient-warning); }
.why-card:nth-child(6) .why-icon { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }

.why-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
}

.why-card p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ============================================
   23. FAQ SECTION
   ============================================ */
.faq {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

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

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

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

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl);
    background: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    transition: var(--transition-base);
}

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

.faq-question i {
    font-size: var(--text-sm);
    color: var(--primary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 var(--space-xl) var(--space-xl);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.faq-answer ul {
    padding-left: var(--space-3xl);
}

.faq-answer li {
    margin-bottom: var(--space-sm);
    list-style: disc;
}

.faq-answer .btn {
    margin: 0 var(--space-xl) var(--space-xl);
}

/* ============================================
   24. TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.testimonial-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-10px);
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: var(--space-lg);
    color: var(--warning);
    font-size: var(--text-sm);
}

.testimonial-text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-style: italic;
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: white;
}

.author-info h4 {
    font-size: var(--text-base);
    margin-bottom: 2px;
}

.author-info p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* ============================================
   25. COMMUNITY SECTION
   ============================================ */
.community {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.community-card {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.community-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.community-card.discord:hover { border-color: #5865F2; }
.community-card.telegram:hover { border-color: #0088CC; }
.community-card.whatsapp:hover { border-color: #25D366; }
.community-card.github:hover { border-color: #fff; }

.community-icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
}

.community-card.discord .community-icon { background: #5865F2; }
.community-card.telegram .community-icon { background: #0088CC; }
.community-card.whatsapp .community-icon { background: #25D366; }
.community-card.github .community-icon { background: #333; }

.community-content {
    flex: 1;
}

.community-content h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.community-content p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.community-members {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.community-action {
    position: absolute;
    right: var(--space-xl);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: var(--transition-base);
}

.community-card:hover .community-action {
    color: var(--primary);
}

.community-action i {
    margin-left: var(--space-sm);
}

/* ============================================
   26. SUPPORT / DONATE SECTION
   ============================================ */
.support {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.support-content {
    max-width: 1000px;
    margin: 0 auto;
}

.support-message {
    text-align: center;
    margin-bottom: var(--space-3xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}

.message-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.support-message h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
}

.support-message p {
    font-size: var(--text-base);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

.donation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.donation-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    transition: var(--transition-base);
}

.donation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.donation-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.donation-card.coffee .donation-icon { background: #FFDD00; color: #000; }
.donation-card.upi .donation-icon { background: var(--gradient-primary); }
.donation-card.paypal .donation-icon { background: #003087; }
.donation-card.kofi .donation-icon { background: #FF5E5B; }

.donation-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-sm);
}

.donation-card > p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.upi-qr {
    margin-bottom: var(--space-md);
}

.qr-placeholder-small {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary);
}

.upi-id {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.btn-donation {
    width: 100%;
    padding: var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.coffee-btn {
    background: #FFDD00;
    color: #000;
}

.coffee-btn:hover {
    background: #E6C700;
    transform: translateY(-2px);
}

.upi-btn {
    background: var(--gradient-primary);
    color: white;
}

.upi-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-sm);
}

.paypal-btn {
    background: #003087;
    color: white;
}

.paypal-btn:hover {
    background: #002570;
    transform: translateY(-2px);
}

.kofi-btn {
    background: #FF5E5B;
    color: white;
}

.kofi-btn:hover {
    background: #E65451;
    transform: translateY(-2px);
}

/* Sponsor Wall */
.sponsor-wall {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
}

.sponsor-wall h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.sponsor-wall > p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.sponsors-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.sponsor-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.sponsor-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: white;
}

.sponsor-item.more .sponsor-avatar {
    background: var(--glass-bg-hover);
    color: var(--text-secondary);
}

.sponsor-name {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* ============================================
   27. NEWSLETTER SECTION
   ============================================ */
.newsletter {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-3xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
}

.newsletter-text h2 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

.newsletter-text p {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

.newsletter-form .form-group {
    display: flex;
    gap: var(--space-md);
}

.newsletter-form input {
    flex: 1;
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: var(--transition-base);
}

.newsletter-form input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.newsletter-form input::placeholder {
    color: var(--text-tertiary);
}

.newsletter-form .btn {
    white-space: nowrap;
}

.form-note {
    margin-top: var(--space-md);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ============================================
   28. CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.info-card {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.info-card:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.info-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.info-content h3 {
    font-size: var(--text-base);
    margin-bottom: var(--space-xs);
}

.info-content p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.contact-social {
    margin-top: var(--space-xl);
}

.contact-social h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-md);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.contact-form .form-group {
    margin-bottom: var(--space-lg);
}

.contact-form label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: var(--transition-base);
}

.contact-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23999'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 20px;
}

.contact-form select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-tertiary);
}

/* ============================================
   29. FINAL CTA SECTION
   ============================================ */
.final-cta {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.final-cta .cta-content {
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta .cta-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.final-cta .cta-content > * {
    position: relative;
    z-index: 1;
}

.final-cta h2 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-lg);
    color: white;
}

.final-cta > .cta-content > p {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

.cta-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.cta-features span {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.9);
}

.cta-features i {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   30. DEVELOPER SECTION
   ============================================ */
.developer {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.developer-card {
    display: flex;
    gap: var(--space-3xl);
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-3xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
}

.developer-avatar {
    position: relative;
    width: 180px;
    height: 180px;
    min-width: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 4px solid transparent;
    border-top-color: var(--primary);
    border-right-color: var(--secondary);
    border-bottom-color: var(--accent);
    border-left-color: var(--success);
    animation: spin 3s linear infinite;
}

.avatar-emoji {
    font-size: 5rem;
}

.developer-info h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xs);
}

.developer-title {
    font-size: var(--text-base);
    color: var(--primary);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-lg);
}

.developer-bio {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
}

.developer-socials {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.developer-socials a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.developer-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* ============================================
   31. FOOTER
   ============================================ */
.footer {
    background: #0a0a14;
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    margin-bottom: var(--space-lg);
}

.footer-brand > p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-column h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-column a {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.footer-column a:hover {
    color: var(--primary);
    padding-left: var(--space-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

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

.footer-badges {
    display: flex;
    gap: var(--space-lg);
}

.footer-badges span {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-full);
}

/* ============================================
   32. TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 450px;
    animation: slideIn 0.3s ease;
}

.toast.hiding {
    animation: slideOut 0.3s ease forwards;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.toast-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.toast.success .toast-icon {
    background: rgba(0, 217, 165, 0.2);
    color: var(--success);
}

.toast.error .toast-icon {
    background: rgba(255, 82, 82, 0.2);
    color: var(--error);
}

.toast.warning .toast-icon {
    background: rgba(255, 230, 109, 0.2);
    color: var(--warning);
}

.toast.info .toast-icon {
    background: rgba(79, 172, 254, 0.2);
    color: var(--info);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    margin-bottom: 2px;
}

.toast-message {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.toast-close {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: var(--transition-base);
}

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

/* ============================================
   33. ADDITIONAL ANIMATIONS
   ============================================ */
/* Fade Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

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

/* Scale Animations */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Gradient Animation */
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.animated-gradient {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

/* ============================================
   34. RESPONSIVE STYLES
   ============================================ */

/* Extra Large Screens (1400px+) */
@media (min-width: 1400px) {
    :root {
        --container-max: 1320px;
    }
}

/* Large Screens (1200px - 1399px) */
@media (max-width: 1399px) {
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    .typing-wrapper {
        font-size: var(--text-3xl);
    }
}

/* Medium-Large Screens (992px - 1199px) */
@media (max-width: 1199px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .donation-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-top {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-brand {
        grid-column: span 3;
        margin-bottom: var(--space-xl);
    }
}

/* Tablets (768px - 991px) */
@media (max-width: 991px) {
    /* Navbar */
    .nav-links {
        display: none;
    }
    
    .nav-mobile-toggle {
        display: flex;
    }
    
    .nav-cta span {
        display: none;
    }
    
    .nav-cta {
        padding: var(--space-md);
    }
    
    /* Hero */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .hero-visual {
        margin-top: var(--space-3xl);
    }
    
    .phone-frame {
        animation: floatPhoneMobile 6s ease-in-out infinite;
    }
    
    @keyframes floatPhoneMobile {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-20px); }
    }
    
    .floating-card {
        display: none;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Tools */
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    /* QR */
    .qr-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .qr-benefits {
        align-items: center;
    }
    
    /* Roadmap */
    .roadmap-timeline::before {
        left: 25px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-content {
        align-items: flex-start;
    }
    
    .timeline-marker {
        left: 25px;
    }
    
    .timeline-content {
        max-width: calc(100% - 80px);
        margin-left: 60px;
    }
    
    /* Why Choose */
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Community */
    .community-grid {
        grid-template-columns: 1fr;
    }
    
    .community-action {
        display: none;
    }
    
    /* Newsletter */
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .form-note {
        justify-content: center;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
    }
    
    /* Developer */
    .developer-card {
        flex-direction: column;
        text-align: center;
    }
    
    .developer-socials {
        justify-content: center;
    }
    
    /* Footer */
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

/* Mobile Landscape & Small Tablets (576px - 767px) */
@media (max-width: 767px) {
    :root {
        --container-padding: 4%;
        --space-4xl: 64px;
    }
    
    /* Typography */
    h1 { font-size: var(--text-4xl); }
    h2 { font-size: var(--text-3xl); }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .typing-wrapper {
        font-size: var(--text-2xl);
    }
    
    .section-header h2 {
        font-size: var(--text-2xl);
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Resources */
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    /* Screenshots */
    .screenshots-slider {
        gap: var(--space-lg);
    }
    
    .screenshot-phone {
        width: 180px;
        height: 370px;
    }
    
    /* Why Choose */
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    /* Testimonials */
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    /* Donation */
    .donation-grid {
        grid-template-columns: 1fr;
    }
    
    /* Contact Form */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-badges {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    /* Floating Social */
    .floating-social {
        bottom: 80px;
        right: 20px;
    }
    
    .floating-toggle {
        width: 55px;
        height: 55px;
    }
    
    /* Back to Top */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    /* Toast */
    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
        top: auto;
        bottom: var(--space-xl);
    }
    
    .toast {
        min-width: auto;
        width: 100%;
    }
}

/* Mobile Portrait (up to 575px) */
@media (max-width: 575px) {
    :root {
        --container-padding: 5%;
        --space-3xl: 48px;
        --space-4xl: 56px;
    }
    
    /* Buttons */
    .btn-lg {
        padding: var(--space-md) var(--space-xl);
        font-size: var(--text-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Hero */
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .typing-wrapper {
        font-size: var(--text-xl);
    }
    
    .hero-description {
        font-size: var(--text-base);
    }
    
    .hero-stats {
        grid-template-columns: 1fr 1fr;
        padding: var(--space-lg);
    }
    
    .stat-number {
        font-size: var(--text-2xl);
    }
    
    .phone-frame {
        width: 260px;
        height: 530px;
    }
    
    /* Featured */
    .featured-logos {
        gap: var(--space-lg);
    }
    
    .logo-item i {
        font-size: 1.5rem;
    }
    
    .featured-badges {
        flex-direction: column;
        align-items: center;
    }
    
    /* Cookie */
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .cookie-btn {
        width: 100%;
    }
    
    /* CTA */
    .final-cta .cta-content {
        padding: var(--space-2xl);
    }
    
    .final-cta h2 {
        font-size: var(--text-2xl);
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .cta-features {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    /* Scroll Indicator */
    .scroll-indicator {
        display: none;
    }
}

/* Extra Small Devices (up to 375px) */
@media (max-width: 375px) {
    .hero-title {
        font-size: var(--text-2xl);
    }
    
    .typing-wrapper {
        font-size: var(--text-lg);
    }
    
    .phone-frame {
        width: 240px;
        height: 490px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
}

/* Landscape Mode on Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-xl);
    }
    
    .hero-visual {
        display: none;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .floating-social,
    .back-to-top,
    .cookie-consent,
    .preloader {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero {
        min-height: auto;
        padding: 20px;
    }
    
    section {
        page-break-inside: avoid;
    }
}