/* ============================================
   ONELOCK VPN - DESIGN SYSTEM
   Professional Landing Page Styles
   ============================================ */

/* ============================================
   1. DESIGN TOKENS
   ============================================ */
:root {
    /* Colors */
    --primary-500: #667eea;
    --primary-600: #5568d3;
    --primary-700: #4451b8;
    --secondary-500: #764ba2;
    --secondary-600: #5f3c82;
    
    /* Neutrals */
    --neutral-900: #0a0a14;
    --neutral-800: #0f0f23;
    --neutral-700: #1a1a2e;
    --neutral-600: #2a2a3e;
    --neutral-100: #ffffff;
    --neutral-200: #e8e8f0;
    --neutral-400: #a0a0b8;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-surface: linear-gradient(180deg, rgba(26, 26, 46, 0.6) 0%, rgba(26, 26, 46, 0.4) 100%);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
    --shadow-glow-hover: 0 8px 32px rgba(102, 126, 234, 0.4);
    
    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;
    --font-size-6xl: 56px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--neutral-900);
    color: var(--neutral-100);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Smooth gradient background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(102, 126, 234, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(118, 75, 162, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(102, 126, 234, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   3. ANIMATED BACKGROUND
   ============================================ */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.2;
    animation: float 25s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-500);
    top: -200px;
    left: -200px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary-500);
    bottom: -250px;
    right: -250px;
    animation-delay: 8s;
}

.orb-3 {
    width: 450px;
    height: 450px;
    background: var(--primary-500);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 16s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -50px) scale(1.1); }
    66% { transform: translate(-30px, 30px) scale(0.9); }
}

/* ============================================
   4. LAYOUT
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-6);
    }
}

@media (min-width: 968px) {
    .container {
        padding: 0 var(--space-8);
    }
}

/* ============================================
   5. HEADER & NAVIGATION
   ============================================ */
header {
    padding: var(--space-4) 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(10, 10, 20, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--transition-base);
}

header.scrolled {
    padding: var(--space-3) 0;
    background: rgba(10, 10, 20, 0.95);
    box-shadow: var(--shadow-md);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--font-size-lg);
    font-weight: 700;
    z-index: 1001;
    order: 1;
}

.footer-section .logo {
    justify-content: center;
}

@media (min-width: 968px) {
    .footer-section .logo {
        justify-content: flex-start;
    }
}

.logo img {
    width: 56px;
    height: 56px;
    filter: brightness(0) invert(1) drop-shadow(0 4px 12px rgba(102, 126, 234, 0.5));
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 1001;
    order: 3;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--neutral-100);
    transition: all var(--transition-base);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: rgba(15, 15, 35, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    list-style: none;
    padding: var(--space-24) var(--space-8);
    gap: var(--space-6);
    transition: right var(--transition-base);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    order: 2;
}

.nav-links.active {
    right: 0;
}

.nav-links a {
    color: var(--neutral-100);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: 500;
    transition: all var(--transition-base);
    padding: var(--space-2) 0;
}

.nav-links a:hover {
    color: var(--primary-500);
    padding-left: var(--space-3);
}

.btn-nav {
    display: none;
}

/* ============================================
   6. BUTTONS
   ============================================ */
.btn-primary, .btn-secondary {
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-md);
    border: none;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    line-height: 1.5;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary::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 var(--transition-slow);
    z-index: 0;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--neutral-100);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.btn-primary span,
.btn-primary svg {
    position: relative;
    z-index: 1;
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--primary-500);
    background: rgba(102, 126, 234, 0.1);
}

.btn-large {
    padding: var(--space-5) var(--space-10);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

/* ============================================
   7. HERO SECTION
   ============================================ */
.hero {
    padding: calc(var(--space-20) + 60px) 0 var(--space-16);
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, var(--neutral-900) 0%, var(--neutral-800) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: clamp(24px, 6vw, 64px);
    line-height: 1.35;
    margin-bottom: var(--space-5);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.01em;
    word-break: break-word;
    max-width: 100%;
    padding: 0 var(--space-2);
}

.hero-content p {
    font-size: clamp(15px, 2vw, 20px);
    color: var(--neutral-400);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(32px, 8vw, 60px);
    flex-wrap: wrap;
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: var(--space-1);
}

.stat-label {
    color: var(--neutral-400);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   8. SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 48px);
    margin-bottom: var(--space-4);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-header p {
    color: var(--neutral-400);
    font-size: clamp(15px, 2vw, 18px);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ============================================
   9. FEATURES SECTION
   ============================================ */
.features {
    padding: var(--space-16) 0;
    background: linear-gradient(180deg, 
        var(--neutral-800) 0%, 
        var(--neutral-700) 50%, 
        var(--neutral-800) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    background: var(--gradient-surface);
    backdrop-filter: blur(20px);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow-hover);
}

.feature-icon-wrapper {
    margin-bottom: var(--space-5);
    display: flex;
    justify-content: center;
}

.feature-icon-wrapper svg {
    width: 56px;
    height: 56px;
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon-wrapper svg {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
    text-align: center;
    font-weight: 600;
    line-height: 1.3;
}

.feature-card p {
    color: var(--neutral-400);
    line-height: 1.6;
    font-size: var(--font-size-sm);
    text-align: center;
}

/* ============================================
   10. PRICING SECTION
   ============================================ */
.pricing {
    padding: var(--space-16) 0;
    background: linear-gradient(180deg, 
        var(--neutral-800) 0%, 
        var(--neutral-900) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--gradient-surface);
    backdrop-filter: blur(20px);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    transition: all var(--transition-base);
    text-align: center;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow-hover);
}

.pricing-card.featured {
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.25);
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-glow);
}

.pricing-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-5);
    font-weight: 600;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.amount {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 800;
    line-height: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.currency {
    font-size: var(--font-size-2xl);
    line-height: 1;
}

.features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.features-list li {
    color: var(--neutral-400);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* ============================================
   11. DOWNLOAD SECTION
   ============================================ */
.download {
    padding: var(--space-16) 0;
    background: linear-gradient(180deg, 
        var(--neutral-900) 0%, 
        var(--neutral-700) 100%);
}

.download-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    background: var(--gradient-surface);
    backdrop-filter: blur(20px);
    padding: var(--space-12) var(--space-8) var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    transition: all var(--transition-base);
    text-align: center;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.step-card:hover {
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow-hover);
}

.step-card-highlight {
    border-color: rgba(102, 126, 234, 0.25);
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.08) 0%, 
        rgba(118, 75, 162, 0.08) 100%);
}

.step-number {
    position: absolute;
    top: calc(var(--space-5) * -1);
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    box-shadow: var(--shadow-glow);
}

.step-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-4);
    font-weight: 600;
    line-height: 1.3;
}

.step-card p {
    color: var(--neutral-400);
    margin-bottom: var(--space-6);
    line-height: 1.7;
    font-size: var(--font-size-base);
    flex-grow: 1;
}

.platform-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    margin-top: auto;
}

.platform-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--neutral-100);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
}

.platform-link:hover {
    background: rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.platform-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ============================================
   12. FOOTER
   ============================================ */
footer {
    padding: var(--space-12) 0 var(--space-6);
    background: linear-gradient(180deg, 
        var(--neutral-700) 0%, 
        var(--neutral-800) 100%);
    position: relative;
}

.seo-content {
    max-width: 900px;
    margin: 0 auto var(--space-10);
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.seo-content h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-4);
    font-weight: 600;
}

.seo-content h4 {
    font-size: var(--font-size-lg);
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
    font-weight: 600;
    color: var(--neutral-100);
}

.seo-content p {
    color: var(--neutral-400);
    line-height: 1.7;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
}

.seo-content a {
    color: var(--primary-500);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.seo-content a:hover {
    color: var(--primary-600);
}

.seo-content p:last-child {
    margin-bottom: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.footer-section:first-child {
    grid-column: 1 / -1;
    text-align: center;
}

@media (min-width: 968px) {
    .footer-section:first-child {
        text-align: left;
    }
}

.footer-section h4 {
    margin-bottom: var(--space-4);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-section a {
    color: var(--neutral-400);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--primary-500);
    transform: translateX(4px);
}

.footer-section p {
    color: var(--neutral-400);
    margin-top: var(--space-3);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    text-align: center;
}

@media (min-width: 968px) {
    .footer-section p {
        text-align: left;
    }
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--neutral-400);
    font-size: var(--font-size-xs);
}

/* ============================================
   13. ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease both;
}

.fade-in-delay {
    animation: fadeInUp 0.8s ease 0.2s both;
}

.feature-card,
.pricing-card,
.download-card,
.step-card,
.section-header {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card.visible,
.pricing-card.visible,
.download-card.visible,
.step-card.visible,
.section-header.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.feature-card:nth-child(1) { transition-delay: 0.1s; }
.feature-card:nth-child(2) { transition-delay: 0.2s; }
.feature-card:nth-child(3) { transition-delay: 0.3s; }
.feature-card:nth-child(4) { transition-delay: 0.4s; }
.feature-card:nth-child(5) { transition-delay: 0.5s; }
.feature-card:nth-child(6) { transition-delay: 0.6s; }

.pricing-card:nth-child(1) { transition-delay: 0.1s; }
.pricing-card:nth-child(2) { transition-delay: 0.2s; }
.pricing-card:nth-child(3) { transition-delay: 0.3s; }
.pricing-card:nth-child(4) { transition-delay: 0.4s; }

.step-card:nth-child(1) { transition-delay: 0.1s; }
.step-card:nth-child(2) { transition-delay: 0.2s; }

.seo-content {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.seo-content.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   14. RESPONSIVE - TABLET (640px+)
   ============================================ */
@media (min-width: 640px) {
    .logo img {
        width: 64px;
        height: 64px;
    }
    
    .platform-links {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-section:first-child {
        grid-column: 1 / -1;
    }
}

/* ============================================
   15. RESPONSIVE - DESKTOP (968px+)
   ============================================ */
@media (min-width: 968px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-links {
        position: static;
        width: auto;
        height: auto;
        background: none;
        backdrop-filter: none;
        flex-direction: row;
        padding: 0;
        gap: var(--space-6);
        border: none;
    }
    
    .nav-links a {
        font-size: var(--font-size-sm);
        padding: 0;
        white-space: nowrap;
    }
    
    .nav-links a:hover {
        padding-left: 0;
    }
    
    .nav-links {
        order: 0;
    }
    
    .mobile-menu-toggle {
        order: 0;
    }
    
    .hero {
        padding: calc(var(--space-24) + 60px) 0 var(--space-20);
    }
    
    .features {
        padding: var(--space-20) 0;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }
    
    .pricing {
        padding: var(--space-20) 0;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-6);
    }
    
    .download {
        padding: var(--space-20) 0;
    }
    
    .download-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
    
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
        gap: var(--space-12);
    }
    
    .footer-section:first-child {
        grid-column: 1;
    }
}

/* ============================================
   16. RESPONSIVE - LARGE DESKTOP (1200px+)
   ============================================ */
@media (min-width: 1200px) {
    .nav-links a {
        font-size: var(--font-size-base);
    }
    
    .btn-nav {
        padding: var(--space-3) var(--space-6);
    }
}