/* NetQueryBuilder Landing Page */

/* ====================================
   CSS Variables & Theme
   ==================================== */
:root {
    /* Premium Color Palette */
    --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-dark: linear-gradient(135deg, #232526 0%, #414345 100%);
    --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);

    /* Accent Colors */
    --accent-purple: #667eea;
    --accent-pink: #f093fb;
    --accent-blue: #4facfe;
    --accent-cyan: #00f2fe;

    /* Surface Colors */
    --surface-elevated: #ffffff;
    --surface-default: #f8fafc;
    --surface-muted: #f1f5f9;

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
    --shadow-card-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.15);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ====================================
   Base Styles
   ==================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--surface-default);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ====================================
   Navigation
   ==================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: all var(--transition-normal);
}

.nav.scrolled {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    padding: var(--space-3) 0;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-inverse);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-inverse);
}

.nav-cta {
    background: var(--gradient-primary) !important;
    color: var(--text-inverse) !important;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-weight: 600 !important;
    transition: all var(--transition-normal) !important;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-inverse);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

/* ====================================
   Hero Section
   ==================================== */
.hero {
    background: var(--gradient-hero);
    color: var(--text-inverse);
    padding: 10rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(240, 147, 251, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(79, 172, 254, 0.15) 0%, transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { opacity: 0.5; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.1); }
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.3), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.2), transparent),
        radial-gradient(2px 2px at 50px 160px, rgba(255,255,255,0.3), transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(255,255,255,0.2), transparent),
        radial-gradient(2px 2px at 130px 80px, rgba(255,255,255,0.3), transparent),
        radial-gradient(2px 2px at 160px 120px, rgba(255,255,255,0.2), transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: particleFloat 20s linear infinite;
    pointer-events: none;
}

@keyframes particleFloat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-200px); }
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin-bottom: var(--space-8);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin: 0 0 var(--space-6);
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.85;
    max-width: 640px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-12);
}

.hero-frameworks {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
}

.framework-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* ====================================
   Buttons
   ==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.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;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--text-inverse);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-dark {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-lg {
    padding: var(--space-5) var(--space-10);
    font-size: 1.0625rem;
}

/* ====================================
   Section Styles
   ==================================== */
.section {
    padding: var(--space-20) 0;
}

.section-dark {
    background: var(--gradient-hero);
    color: var(--text-inverse);
}

.section-muted {
    background: var(--surface-muted);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 var(--space-4);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* ====================================
   Live Demos Section
   ==================================== */
.demos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

.demo-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.demo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.demo-card-preview {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.demo-card-preview.blazor {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.demo-card-preview.aspnet {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.demo-card-preview-inner {
    position: absolute;
    inset: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-card-preview-inner svg {
    width: 48px;
    height: 48px;
    opacity: 0.9;
}

.demo-card-body {
    padding: var(--space-6);
}

.demo-card-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 var(--space-2);
}

.demo-card-body p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0 0 var(--space-5);
}

.demo-card-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-bottom: var(--space-5);
}

.tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--surface-muted);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.demo-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: gap var(--transition-fast);
}

.demo-card-link:hover {
    gap: var(--space-3);
}

.demo-card-link svg {
    width: 16px;
    height: 16px;
}

/* ====================================
   Features Grid
   ==================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.feature-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all var(--transition-normal);
    position: relative;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-card:nth-child(1)::before { background: var(--gradient-primary); }
.feature-card:nth-child(2)::before { background: var(--gradient-secondary); }
.feature-card:nth-child(3)::before { background: var(--gradient-accent); }
.feature-card:nth-child(4)::before { background: linear-gradient(135deg, #f5af19 0%, #f12711 100%); }
.feature-card:nth-child(5)::before { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.feature-card:nth-child(6)::before { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card:nth-child(1) .feature-icon { background: rgba(102, 126, 234, 0.1); color: var(--accent-purple); }
.feature-card:nth-child(2) .feature-icon { background: rgba(240, 147, 251, 0.1); color: var(--accent-pink); }
.feature-card:nth-child(3) .feature-icon { background: rgba(79, 172, 254, 0.1); color: var(--accent-blue); }
.feature-card:nth-child(4) .feature-icon { background: rgba(245, 175, 25, 0.1); color: #f5af19; }
.feature-card:nth-child(5) .feature-icon { background: rgba(67, 233, 123, 0.1); color: #43e97b; }
.feature-card:nth-child(6) .feature-icon { background: rgba(250, 112, 154, 0.1); color: #fa709a; }

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 var(--space-3);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
    line-height: 1.7;
}

/* ====================================
   Code Examples
   ==================================== */
.code-section {
    max-width: 900px;
    margin: 0 auto;
}

.code-tabs {
    display: flex;
    gap: var(--space-1);
    margin-bottom: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.code-tab {
    padding: var(--space-3) var(--space-5);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: none;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: inherit;
}

.code-tab:hover {
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.08);
}

.code-tab.active {
    color: var(--text-inverse);
    background: rgba(35, 37, 38, 0.95);
    border-color: rgba(255, 255, 255, 0.15);
}

.code-panel {
    display: none;
    background: linear-gradient(135deg, #232526 0%, #2d2f31 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
    overflow: hidden;
}

.code-panel.active {
    display: block;
}

.code-block {
    padding: var(--space-6);
    overflow-x: auto;
    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, Monaco, monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    color: #e2e8f0;
    margin: 0;
}

.code-block .keyword { color: #c792ea; }
.code-block .type { color: #82aaff; }
.code-block .string { color: #c3e88d; }
.code-block .comment { color: #546e7a; }
.code-block .method { color: #ffcb6b; }
.code-block .tag { color: #f07178; }
.code-block .attr { color: #c792ea; }
.code-block .attr-value { color: #c3e88d; }

/* ====================================
   Packages Section
   ==================================== */
.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-6);
}

.package-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all var(--transition-normal);
}

.package-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.package-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.package-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.package-badge {
    display: inline-block;
}

.package-badge img {
    height: 20px;
    vertical-align: middle;
}

.package-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0 0 var(--space-4);
    line-height: 1.6;
}

.package-install {
    background: var(--surface-muted);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.8125rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.package-install code {
    overflow-x: auto;
    white-space: nowrap;
}

.copy-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
    color: var(--text-muted);
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.copy-btn:hover {
    color: var(--accent-purple);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

/* ====================================
   Pricing Section
   ==================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.pricing-card.featured {
    border: 2px solid var(--accent-purple);
}

.pricing-card.featured::before {
    content: 'Recommended';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--text-inverse);
    padding: var(--space-1) var(--space-5);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin: 0 0 var(--space-4);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0 0 var(--space-8);
    line-height: 1.6;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8);
}

.pricing-features li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--surface-muted);
    font-size: 0.9375rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.pricing-features li::before {
    content: '';
    width: 20px;
    height: 20px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2310b981'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 14px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-btn {
    width: 100%;
    text-align: center;
}

/* ====================================
   Footer
   ==================================== */
.footer {
    background: var(--gradient-hero);
    color: var(--text-inverse);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin: var(--space-4) 0 0;
}

.footer h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 var(--space-5);
    color: rgba(255, 255, 255, 0.9);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ====================================
   Responsive Design
   ==================================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(26, 26, 46, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-toggle {
        display: block;
    }

    .hero {
        padding: 8rem 0 4rem;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.0625rem;
    }

    .demos-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .packages-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: var(--space-12) 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .code-tabs {
        gap: 0;
    }

    .code-tab {
        padding: var(--space-2) var(--space-3);
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn-lg {
        width: 100%;
    }
}

/* ====================================
   Accessibility
   ==================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-purple);
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 9999;
    transition: top var(--transition-fast);
    text-decoration: none;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}