/* ==========================================================================
   AURA App Landing Page Design System & Stylesheet
   ========================================================================== */

/* Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* Color Variables & Styling Tokens */
:root {
    /* Color Palette matching Aura Theme */
    --bg-color: #020617;          /* Slate 950 - Deepest Background */
    --surface-color: #0f172a;     /* Slate 900 - Component Surfaces */
    --surface-hover: #1e293b;     /* Slate 800 - Component Hover State */
    --surface-card: rgba(15, 23, 42, 0.7); /* Translucent Card */
    
    --primary-color: #3b82f6;     /* Blue 500 - Main Accent */
    --primary-hover: #2563eb;     /* Blue 600 */
    --primary-glow: rgba(59, 130, 246, 0.35);
    
    --text-primary: #f8fafc;      /* Slate 50 - High Contrast Text */
    --text-secondary: #94a3b8;    /* Slate 400 - Medium Contrast Text */
    --text-muted: #64748b;        /* Slate 500 - Low Contrast Text */
    
    --success-color: #10b981;     /* Emerald 500 */
    --success-glow: rgba(16, 185, 129, 0.2);
    
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(59, 130, 246, 0.5);
    
    --glass-bg: rgba(2, 6, 23, 0.75);
    --glass-border: rgba(255, 255, 255, 0.05);
    
    /* Layout & Animation values */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1200px;
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

/* Light Theme Variables - Applied when HTML has class 'light' */
html.light {
    --bg-color: #f8fafc;          /* Slate 50 */
    --surface-color: #ffffff;     /* White */
    --surface-hover: #f1f5f9;     /* Slate 100 */
    --surface-card: rgba(255, 255, 255, 0.8);
    
    --primary-color: #0f172a;     /* Slate 900 */
    --primary-hover: #1e293b;     /* Slate 800 */
    --primary-glow: rgba(15, 23, 42, 0.15);
    
    --text-primary: #0f172a;      /* Slate 900 */
    --text-secondary: #475569;    /* Slate 600 */
    --text-muted: #64748b;        /* Slate 500 */
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(15, 23, 42, 0.3);
    
    --glass-bg: rgba(248, 250, 252, 0.8);
    --glass-border: rgba(15, 23, 42, 0.05);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
}

/* Background Gradients */
.background-glows {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -10;
    overflow: hidden;
    pointer-events: none;
}

.glow-1 {
    position: absolute;
    top: -10%;
    right: 15%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, rgba(59, 130, 246, 0) 70%);
    filter: blur(80px);
}

.glow-2 {
    position: absolute;
    bottom: 10%;
    left: 10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 77, 255, 0.08) 0%, rgba(124, 77, 255, 0) 70%);
    filter: blur(80px);
}

/* Reusable Components & Buttons */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.section-title-wrapper {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
    font-family: 'Outfit', sans-serif;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Button UI */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 8px 20px -6px var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -4px var(--primary-glow);
}

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

.btn-secondary:hover {
    background-color: var(--surface-hover);
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

/* Responsive Sticky Nav Bar */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    transition: background-color var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Switcher */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 48px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 50px;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid rgba(59, 130, 246, 0.15);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.version-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 4.25rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-title span {
    background: linear-gradient(135deg, #60a5fa 10%, #3b82f6 50%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.7;
}

.hero-cta-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    width: 100%;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Showcase Promo Graphic Mockup */
.hero-mockup {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-wrapper {
    width: 100%;
    max-width: 350px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 
                0 0 40px rgba(59, 130, 246, 0.1);
    transform: perspective(800px) rotateY(-10deg) rotateX(6deg);
    transition: all var(--transition-slow);
    animation: float 6s ease-in-out infinite;
}

.device-wrapper:hover {
    transform: perspective(800px) rotateY(0deg) rotateX(0deg) scale(1.03);
    box-shadow: 0 35px 80px -15px rgba(0, 0, 0, 0.9), 
                0 0 50px rgba(59, 130, 246, 0.2);
}

.device-screen {
    width: 100%;
    height: auto;
    display: block;
}

/* Features Grid */
.features-section {
    padding: 100px 0;
    background: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-8px);
    background: var(--surface-color);
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.8),
                0 0 20px rgba(59, 130, 246, 0.05);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: rgba(59, 130, 246, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: 24px;
    font-size: 1.5rem;
    transition: all var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--primary-color);
    color: #ffffff;
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--primary-glow);
}

.feature-icon-wrapper svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.feature-bullets {
    list-style: none;
}

.feature-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.bullet-icon {
    color: var(--success-color);
    display: flex;
    align-items: center;
}

/* App Screenshots Gallery (Supports Landscape & Portrait natively) */
.gallery-section {
    padding: 100px 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 48px;
    align-items: center;
}

.gallery-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.gallery-tab {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
    outline: none;
}

.gallery-tab:hover {
    background: var(--surface-hover);
    border-color: rgba(255, 255, 255, 0.1);
}

.gallery-tab.active {
    background: var(--surface-hover);
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px -5px var(--primary-glow);
}

.gallery-tab-num {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.gallery-tab.active .gallery-tab-num {
    color: var(--primary-color);
}

.gallery-tab-details h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.gallery-tab-details p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.gallery-display {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.gallery-display-wrapper {
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.gallery-image-frame {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background: #020617;
    display: flex;
    justify-content: center;
    align-items: center;
    aspect-ratio: 16/11;
    position: relative;
    max-height: 520px;
    transition: all var(--transition-normal);
}

.gallery-image-frame.portrait {
    aspect-ratio: 9/16;
    max-width: 290px;
    margin: 0 auto;
}

.gallery-screen-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: block;
}

.gallery-screen-img.active {
    opacity: 1;
}

/* Supported Sites Scrolling Marquee */
.marquee-section {
    padding: 60px 0;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.2);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.marquee-title {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 32px;
}

.marquee-container {
    display: flex;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.marquee-container::before, .marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.marquee-container::before {
    left: 0;
    background: linear-gradient(90deg, var(--bg-color) 0%, rgba(2, 6, 23, 0) 100%);
}

.marquee-container::after {
    right: 0;
    background: linear-gradient(270deg, var(--bg-color) 0%, rgba(2, 6, 23, 0) 100%);
}

.marquee-track {
    display: flex;
    gap: 60px;
    animation: marquee 25s linear infinite;
    width: max-content;
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.25rem;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.marquee-item:hover {
    opacity: 1;
}

/* FAQ Accordion Component */
.faq-section {
    padding: 100px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.faq-item.active {
    border-color: var(--primary-color);
    background: var(--surface-color);
}

.faq-question-btn {
    width: 100%;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    text-align: left;
}

.faq-toggle-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    min-width: 24px;
}

.faq-item.active .faq-toggle-icon {
    transform: rotate(135deg);
    background: var(--primary-color);
    color: #ffffff;
}

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

.faq-answer-inner {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Download CTA Section */
.cta-section {
    padding: 100px 0;
}

.cta-banner {
    background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.15) 0%, rgba(15, 23, 42, 0.6) 80%), var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 80px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 70px -20px rgba(0,0,0,0.9);
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.cta-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.cta-description {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    font-size: 1.15rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* Footer Section */
footer {
    border-top: 1px solid var(--border-color);
    background: #01040f;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-width: 320px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.footer-nav-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 32px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Specific Legal Page Styles (Privacy & Terms) */
.legal-container {
    max-width: 800px;
    margin: 80px auto 120px;
    padding: 0 24px;
}

.legal-header {
    margin-bottom: 48px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 32px;
}

.legal-header h1 {
    font-size: 3rem;
    margin-bottom: 12px;
}

.legal-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 40px 0 16px;
    color: var(--text-primary);
}

.legal-content p, .legal-content li {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.legal-content ul {
    margin-bottom: 24px;
    padding-left: 20px;
}

.legal-content li {
    margin-bottom: 10px;
}

.legal-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 32px;
    font-size: 0.95rem;
    transition: transform var(--transition-fast);
}

.legal-back-link:hover {
    transform: translateX(-4px);
}

/* Animations */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

@keyframes float {
    0%, 100% {
        transform: perspective(800px) rotateY(-10deg) rotateX(6deg) translateY(0);
    }
    50% {
        transform: perspective(800px) rotateY(-10deg) rotateX(6deg) translateY(-12px);
    }
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 30px));
    }
}

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

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1.15fr 0.85fr;
        gap: 32px;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .gallery-grid {
        gap: 24px;
    }
}

@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    .hero-content {
        align-items: center;
    }
    .hero-title {
        font-size: 3.75rem;
    }
    .hero-cta-wrapper {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .device-wrapper {
        transform: none;
        animation: floatPhone 6s ease-in-out infinite;
    }
    .device-wrapper:hover {
        transform: scale(1.02);
    }
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .gallery-display {
        order: -1;
    }
    .footer-grid {
        grid-template-columns: 1.5fr 1fr;
        gap: 32px;
    }
    
    @keyframes floatPhone {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-12px); }
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    header.mobile-menu-open .nav-menu {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-color);
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        gap: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
        animation: slideDown var(--transition-fast) ease-out forwards;
    }
    .mobile-menu-btn {
        display: block;
    }
    .section-title {
        font-size: 2rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.75rem;
    }
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 540px) {
    .btn-link-header {
        display: none !important;
    }
}

/* ==========================================================================
   BLOG & ARTICLE SYSTEM STYLES (ENHANCED & RESPONSIVE)
   ========================================================================== */

/* Blog Index & Section Header */
.blog-hero, 
.blog-preview-section {
    padding: 90px 0 60px;
    position: relative;
}

.blog-hero {
    padding-top: 140px;
    text-align: center;
}

.blog-hero .hero-title {
    font-size: 3.2rem;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.blog-hero .hero-description {
    max-width: 720px;
    margin: 0 auto 36px;
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.blog-categories {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.category-badge {
    padding: 10px 22px;
    border-radius: var(--radius-xl);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.category-badge:hover,
.category-badge.active {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 18px var(--primary-glow);
    transform: translateY(-2px);
}

/* Blog Cards Grid Layout */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .blog-hero .hero-title {
        font-size: 2.3rem;
    }
}

/* Glassmorphic Blog Card Design */
.blog-card {
    background: var(--surface-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease, box-shadow 0.35s ease;
    text-decoration: none;
    color: inherit;
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.blog-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
}

/* 16:9 Aspect Ratio Gradient Banner Thumbnails */
.blog-card-banner {
    width: 100%;
    aspect-ratio: 16 / 9;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--border-color);
}

.banner-gradient-1 {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 40%, #1e40af 100%);
}

.banner-gradient-2 {
    background: linear-gradient(135deg, #022c22 0%, #047857 40%, #0d9488 100%);
}

.banner-gradient-3 {
    background: linear-gradient(135deg, #2e1065 0%, #6d28d9 40%, #2563eb 100%);
}

.banner-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
}

.blog-card:hover .banner-icon-wrapper {
    transform: scale(1.1);
}

.blog-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.blog-card-tag {
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.blog-card-title {
    font-size: 1.25rem;
    line-height: 1.4;
    margin-bottom: 12px;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title {
    color: var(--primary-color);
}

.blog-card-excerpt {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 0.88rem;
    color: var(--primary-color);
    font-weight: 600;
}

.blog-card-footer span:last-child {
    color: var(--text-muted);
    font-weight: 400;
}

/* Article Reader Styling */
.article-section {
    padding: 130px 0 80px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.article-header {
    max-width: 840px;
    margin: 0 auto 40px;
}

.article-category-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.article-title {
    font-size: 2.8rem;
    line-height: 1.22;
    margin-bottom: 24px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

.article-author {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
}

.article-content {
    max-width: 840px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--text-secondary);
}

.article-content h2 {
    font-size: 1.9rem;
    margin: 44px 0 20px;
    color: var(--text-primary);
    line-height: 1.3;
}

.article-content h3 {
    font-size: 1.45rem;
    margin: 32px 0 14px;
    color: var(--text-primary);
}

.article-content p {
    margin-bottom: 24px;
}

.article-content ul, 
.article-content ol {
    margin: 0 0 28px 24px;
}

.article-content li {
    margin-bottom: 10px;
}

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

/* Callout Box for Downloads inside Article */
.download-callout-box {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(15, 23, 42, 0.85));
    border: 1px solid var(--primary-glow);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
    box-shadow: 0 12px 36px var(--primary-glow);
}

.download-callout-box h4 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.download-callout-box p {
    margin-bottom: 0;
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Comparison Tables in Articles */
.article-table-wrapper {
    overflow-x: auto;
    margin: 36px 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.article-table th {
    background: var(--surface-color);
    padding: 16px 20px;
    color: var(--text-primary);
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
}

.article-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--surface-card);
}

.article-table tr:last-child td {
    border-bottom: none;
}

.article-table tr.highlight td {
    background: rgba(59, 130, 246, 0.08);
    font-weight: 600;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .article-title {
        font-size: 2.1rem;
    }
    .download-callout-box {
        padding: 22px;
    }
}

/* Floating Sticky Conversion Bar */
.sticky-install-bar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(120px);
    width: calc(100% - 40px);
    max-width: 600px;
    background: rgba(15, 23, 42, 0.92);
    border: 1px solid var(--border-hover);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 20px var(--primary-glow);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 999;
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.sticky-install-bar.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.sticky-bar-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sticky-bar-logo {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
}

.sticky-bar-text h4 {
    font-size: 0.95rem;
    line-height: 1.2;
    color: var(--text-primary);
}

.sticky-bar-text p {
    font-size: 0.78rem;
    color: var(--success-color);
    font-weight: 600;
}

.sticky-bar-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
    border-radius: var(--radius-lg);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.sticky-bar-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.03);
}

@media (max-width: 480px) {
    .sticky-install-bar {
        bottom: 12px;
        padding: 10px 14px;
    }
    .sticky-bar-text p {
        display: none;
    }
}