/* NetKey Documentation - NetKey Brand Styling */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Primary Colors - NetKey Brand */
    --netkey-dark-blue: #070452;
    --netkey-mid-blue: #1C16C5;
    --netkey-blue: #00C8FF;
    --netkey-light-blue: #B4FFFF;
    --netkey-superlight-blue: #E8FDFF;
    
    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: var(--netkey-blue);
    --color-purple: #8B5CF6;
    --color-pink: #EC4899;
    --color-orange: #F97316;
    --color-cyan: #06B6D4;
    
    /* Backgrounds */
    --bg-body: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-dark: var(--netkey-dark-blue);
    --bg-code: #1E293B;
    
    /* Text Colors */
    --text-primary: var(--netkey-dark-blue);
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --text-light: #FFFFFF;
    
    /* Borders */
    --border-color: #E2E8F0;
    --border-light: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(7, 4, 82, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(7, 4, 82, 0.1), 0 2px 4px -1px rgba(7, 4, 82, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(7, 4, 82, 0.1), 0 4px 6px -2px rgba(7, 4, 82, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(7, 4, 82, 0.1), 0 10px 10px -5px rgba(7, 4, 82, 0.04);
    --shadow-glow: 0 0 40px rgba(0, 200, 255, 0.2);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --nav-height: 64px;
    --sidebar-width: 280px;
    --container-max: 1280px;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + var(--spacing-xl));
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

a {
    color: var(--netkey-mid-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--netkey-blue);
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--netkey-superlight-blue);
    color: var(--netkey-dark-blue);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

pre {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    overflow-x: auto;
}

pre code {
    background: transparent;
    padding: 0;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ============================================
   NAVIGATION
   ============================================ */
.docs-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--netkey-dark-blue);
    text-decoration: none;
}

.nav-brand:hover {
    color: var(--netkey-dark-blue);
}

.brand-logo {
    height: 32px;
    width: auto;
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.brand-docs {
    color: var(--netkey-mid-blue);
    font-weight: 500;
    font-size: 0.875rem;
    background: var(--netkey-superlight-blue);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
}

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

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--netkey-superlight-blue);
    color: var(--netkey-dark-blue);
}

.nav-link.active {
    background: var(--netkey-superlight-blue);
    color: var(--netkey-mid-blue);
}

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

/* Search Box */
.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    min-width: 240px;
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    border-color: var(--netkey-blue);
    box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.1);
}

.search-box i {
    color: var(--text-muted);
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-primary);
    flex: 1;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box kbd {
    padding: 0.125rem 0.375rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    border: none;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-dark-blue));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-outline {
    background: transparent;
    color: var(--netkey-mid-blue);
    border: 2px solid var(--netkey-mid-blue);
}

.btn-outline:hover {
    background: var(--netkey-superlight-blue);
    color: var(--netkey-mid-blue);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding: calc(var(--nav-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(180deg, var(--netkey-superlight-blue) 0%, var(--bg-body) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 200, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--netkey-mid-blue);
    margin-bottom: var(--spacing-lg);
}

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

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--netkey-dark-blue) 0%, var(--netkey-mid-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--netkey-superlight-blue);
    border-radius: var(--radius-md);
    color: var(--netkey-mid-blue);
    font-size: 1.25rem;
}

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

.stat-value {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--netkey-dark-blue);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    padding: var(--spacing-3xl) 0;
}

.docs-main-hero {
    padding-top: calc(80px + var(--spacing-3xl)); /* Account for fixed navbar */
}

/* Sections */
.section {
    margin-bottom: var(--spacing-3xl);
}

.section-alt {
    padding: var(--spacing-3xl) 0;
    margin-left: calc(-1 * var(--spacing-xl));
    margin-right: calc(-1 * var(--spacing-xl));
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
}

.section-dark {
    padding: var(--spacing-3xl);
    margin-left: calc(-1 * var(--spacing-xl));
    margin-right: calc(-1 * var(--spacing-xl));
    background: var(--netkey-dark-blue);
    border-radius: var(--radius-2xl);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-title i {
    color: var(--netkey-mid-blue);
}

.section-title.light {
    color: white;
}

.section-title.light i {
    color: var(--netkey-blue);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.section-description.light {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   CARD GRID
   ============================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 900px) {
    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* Doc Card */
.doc-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.doc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

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

.card-blue::before { background: linear-gradient(90deg, var(--netkey-mid-blue), var(--netkey-blue)); }
.card-purple::before { background: linear-gradient(90deg, #7C3AED, #A78BFA); }
.card-green::before { background: linear-gradient(90deg, #059669, #34D399); }
.card-orange::before { background: linear-gradient(90deg, #EA580C, #FB923C); }

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.card-blue .card-icon { background: rgba(28, 22, 197, 0.1); color: var(--netkey-mid-blue); }
.card-purple .card-icon { background: rgba(139, 92, 246, 0.1); color: var(--color-purple); }
.card-green .card-icon { background: rgba(16, 185, 129, 0.1); color: var(--color-success); }
.card-orange .card-icon { background: rgba(249, 115, 22, 0.1); color: var(--color-orange); }

.card-content {
    flex: 1;
}

.card-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--netkey-dark-blue);
}

.card-content p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}

.card-links {
    list-style: none;
}

.card-links li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
}

.card-links i {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-arrow {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 1.5rem;
    color: var(--text-muted);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-normal);
}

.doc-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.card-blue:hover .card-arrow { color: var(--netkey-mid-blue); }
.card-purple:hover .card-arrow { color: var(--color-purple); }
.card-green:hover .card-arrow { color: var(--color-success); }
.card-orange:hover .card-arrow { color: var(--color-orange); }

/* ============================================
   FEATURE GRID
   ============================================ */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--bg-body);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.feature-card:hover {
    background: white;
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.feature-icon.bg-blue { background: linear-gradient(135deg, var(--netkey-mid-blue), var(--netkey-blue)); }
.feature-icon.bg-purple { background: linear-gradient(135deg, #7C3AED, #A78BFA); }
.feature-icon.bg-green { background: linear-gradient(135deg, #059669, #34D399); }
.feature-icon.bg-orange { background: linear-gradient(135deg, #EA580C, #FB923C); }
.feature-icon.bg-pink { background: linear-gradient(135deg, #DB2777, #F472B6); }
.feature-icon.bg-cyan { background: linear-gradient(135deg, #0891B2, #22D3EE); }

.feature-card h4 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--netkey-mid-blue);
}

.feature-link:hover {
    gap: var(--spacing-sm);
}

/* ============================================
   PLATFORM GRID
   ============================================ */
.platform-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    min-width: 140px;
    transition: all var(--transition-fast);
}

.platform-card:hover {
    border-color: var(--netkey-blue);
    box-shadow: var(--shadow-md);
}

.platform-logo {
    width: 64px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.platform-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-fast);
}

.platform-card:hover .platform-logo img {
    filter: grayscale(0%);
    opacity: 1;
}

.platform-fallback {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--netkey-superlight-blue);
    border-radius: var(--radius-md);
    color: var(--netkey-mid-blue);
    font-size: 1.5rem;
}

.platform-card span {
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   REFERENCE GRID
   ============================================ */
.reference-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.reference-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .reference-grid,
    .reference-grid-2 {
        grid-template-columns: 1fr;
    }
}

.reference-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
}

.reference-card h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    margin-bottom: var(--spacing-md);
}

.reference-card h4 i {
    color: var(--netkey-blue);
}

.reference-intro {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.reference-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--netkey-blue);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    margin-top: var(--spacing-md);
    transition: color 0.2s;
}

.reference-link:hover {
    color: var(--netkey-light-blue);
}

.reference-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.reference-item:last-of-type {
    border-bottom: none;
}

.reference-item .label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.reference-item code {
    background: rgba(0, 200, 255, 0.15);
    color: var(--netkey-blue);
    font-size: 0.8125rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #34D399;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #FBBF24;
}

/* ============================================
   CODE EXAMPLE
   ============================================ */
.code-example {
    position: relative;
    background: var(--bg-code);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.code-tabs {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.code-tab:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.code-tab.active {
    color: var(--netkey-blue);
    background: rgba(0, 200, 255, 0.15);
}

.code-content {
    padding: var(--spacing-xl);
}

.code-block {
    margin: 0;
    color: #E2E8F0;
}

.copy-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Code Syntax Highlighting */
.token.comment { color: #64748B; }
.token.keyword { color: #F472B6; }
.token.string { color: #34D399; }
.token.number { color: #FBBF24; }

.api-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ============================================
   HELP GRID
   ============================================ */
.help-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 900px) {
    .help-grid {
        grid-template-columns: 1fr;
    }
}

.help-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.help-card i {
    font-size: 2.5rem;
    color: var(--netkey-mid-blue);
    margin-bottom: var(--spacing-md);
}

.help-card h4 {
    margin-bottom: var(--spacing-sm);
}

.help-card p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   FOOTER
   ============================================ */
.docs-footer {
    background: var(--netkey-dark-blue);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    height: 36px;
    width: auto;
    max-width: 130px;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
    object-fit: contain;
}

.footer-brand .brand-icon {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-brand span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

.footer-links h5 {
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    display: block;
    padding: var(--spacing-xs) 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
    margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .search-box {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .stat {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 600px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}