/**
 * Documentation Navigation Header Styles v2
 * Clean mega-menu design with full-width dropdowns
 * Header expands down smoothly - spacious, not cramped
 */

/* ==========================================
   CSS Variables
   ========================================== */
:root {
    --dn-header-height: 60px;
    --dn-header-bg: #ffffff;
    --dn-header-border: #f0f0f0;
    --dn-text: #111827;
    --dn-text-secondary: #4b5563;
    --dn-text-muted: #6b7280;
    --dn-accent: #6366f1;
    --dn-accent-hover: #4f46e5;
    --dn-accent-light: #eef2ff;
    --dn-surface: #ffffff;
    --dn-surface-hover: #f9fafb;
    --dn-surface-active: #f3f4f6;
    --dn-border: #e5e7eb;
    --dn-border-light: #f3f4f6;
    --dn-shadow-dropdown: 0 20px 50px -12px rgba(0, 0, 0, 0.15);
    --dn-radius-sm: 6px;
    --dn-radius-md: 10px;
    --dn-radius-lg: 16px;
    --dn-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --dn-transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --dn-transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --dn-font: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

[data-theme="dark"] {
    --dn-header-bg: #0a0a0f;
    --dn-header-border: #1f1f2e;
    --dn-text: #f9fafb;
    --dn-text-secondary: #9ca3af;
    --dn-text-muted: #6b7280;
    --dn-surface: #111118;
    --dn-surface-hover: #18181f;
    --dn-surface-active: #1f1f2a;
    --dn-border: #27273a;
    --dn-border-light: #1f1f2e;
    --dn-accent-light: rgba(99, 102, 241, 0.15);
    --dn-shadow-dropdown: 0 20px 50px -12px rgba(0, 0, 0, 0.5);
}

/* ==========================================
   Header Container
   ========================================== */
.docs-nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--dn-header-bg);
    border-bottom: 1px solid var(--dn-header-border);
    z-index: 9999;
    font-family: var(--dn-font);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.dn-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
    height: var(--dn-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ==========================================
   Left Section - Logo
   ========================================== */
.dn-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.dn-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    transition: opacity var(--dn-transition-fast);
}

.dn-logo:hover {
    opacity: 0.8;
}

.dn-logo-img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.dn-logo-text {
    font-size: 18px;
    font-weight: 650;
    color: var(--dn-text);
    letter-spacing: -0.025em;
}

.dn-divider {
    width: 1px;
    height: 24px;
    background: var(--dn-border);
}

.dn-docs-badge {
    font-size: 13px;
    font-weight: 600;
    color: var(--dn-accent);
    text-decoration: none;
    padding: 5px 12px;
    background: var(--dn-accent-light);
    border-radius: 20px;
    transition: all var(--dn-transition-fast);
}

.dn-docs-badge:hover {
    background: var(--dn-accent);
    color: white;
}

/* ==========================================
   Navigation
   ========================================== */
.dn-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 100%;
}

.dn-nav-item {
    position: static;
    height: 100%;
    display: flex;
    align-items: center;
}

.dn-nav-trigger {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 10px 14px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--dn-text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--dn-radius-md);
    cursor: pointer;
    transition: all var(--dn-transition-fast);
    white-space: nowrap;
    height: 40px;
}

.dn-nav-trigger:hover {
    color: var(--dn-text);
    background: var(--dn-surface-hover);
}

.dn-nav-item.active .dn-nav-trigger {
    color: var(--dn-text);
    background: var(--dn-surface-active);
}

.dn-chevron {
    width: 15px;
    height: 15px;
    opacity: 0.6;
    transition: transform var(--dn-transition);
}

.dn-nav-item.active .dn-chevron {
    transform: rotate(180deg);
    opacity: 1;
}

/* ==========================================
   Mega Menu Dropdowns - Full Width Expansion
   ========================================== */
.dn-dropdown {
    position: fixed;
    top: var(--dn-header-height);
    left: 0;
    right: 0;
    background: var(--dn-surface);
    border-bottom: 1px solid var(--dn-border);
    box-shadow: var(--dn-shadow-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--dn-transition);
    z-index: 999;
    max-height: calc(100vh - var(--dn-header-height) - 40px);
    overflow-y: auto;
}

.dn-nav-item.active .dn-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dn-dropdown-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: 32px;
}

/* Grid Layout for Multi-Column Dropdowns */
.dn-dropdown-grid {
    display: grid;
    gap: 40px;
}

.dn-dropdown-sm .dn-dropdown-grid {
    grid-template-columns: repeat(2, minmax(200px, 280px));
    justify-content: center;
}

.dn-dropdown-md .dn-dropdown-grid {
    grid-template-columns: repeat(3, minmax(180px, 260px));
    justify-content: center;
}

.dn-dropdown-lg .dn-dropdown-grid {
    grid-template-columns: repeat(4, minmax(180px, 260px));
    justify-content: center;
}

.dn-dropdown-xl .dn-dropdown-grid {
    grid-template-columns: repeat(5, minmax(160px, 220px));
    justify-content: center;
}

.dn-dropdown-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dn-dropdown-heading {
    font-size: 11px;
    font-weight: 700;
    color: var(--dn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0 12px 10px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--dn-border-light);
}

.dn-dropdown-link {
    display: block;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 450;
    color: var(--dn-text);
    text-decoration: none;
    border-radius: var(--dn-radius-sm);
    transition: all var(--dn-transition-fast);
}

.dn-dropdown-link:hover {
    background: var(--dn-accent-light);
    color: var(--dn-accent);
    padding-left: 16px;
}

/* Rich Dropdown Items */
.dn-dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 16px;
    text-decoration: none;
    border-radius: var(--dn-radius-md);
    transition: all var(--dn-transition-fast);
}

.dn-dropdown-item:hover {
    background: var(--dn-surface-hover);
}

.dn-item-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dn-accent-light);
    border-radius: var(--dn-radius-md);
    flex-shrink: 0;
    transition: all var(--dn-transition-fast);
}

.dn-dropdown-item:hover .dn-item-icon {
    background: var(--dn-accent);
}

.dn-item-icon svg {
    width: 20px;
    height: 20px;
    color: var(--dn-accent);
    transition: color var(--dn-transition-fast);
}

.dn-dropdown-item:hover .dn-item-icon svg {
    color: white;
}

.dn-item-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.dn-item-title {
    font-size: 14px;
    font-weight: 550;
    color: var(--dn-text);
}

.dn-item-desc {
    font-size: 13px;
    color: var(--dn-text-muted);
    line-height: 1.4;
}

.dn-dropdown-divider {
    height: 1px;
    background: var(--dn-border-light);
    margin: 12px 0;
}

/* ==========================================
   Right Section
   ========================================== */
.dn-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* Search Button */
.dn-search-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    background: var(--dn-surface-hover);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-md);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--dn-transition-fast);
    min-width: 200px;
}

.dn-search-btn:hover {
    border-color: var(--dn-accent);
    box-shadow: 0 0 0 3px var(--dn-accent-light);
}

.dn-search-btn svg {
    width: 16px;
    height: 16px;
    color: var(--dn-text-muted);
}

.dn-search-label {
    font-size: 14px;
    color: var(--dn-text-muted);
    flex: 1;
    text-align: left;
}

.dn-search-kbd {
    font-size: 11px;
    font-family: inherit;
    font-weight: 500;
    color: var(--dn-text-muted);
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: 5px;
    padding: 3px 7px;
}

/* Auth Buttons */
.dn-auth-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 550;
    text-decoration: none;
    border-radius: var(--dn-radius-md);
    transition: all var(--dn-transition-fast);
    cursor: pointer;
    border: none;
}

.dn-btn-ghost {
    color: var(--dn-text-secondary);
    background: transparent;
}

.dn-btn-ghost:hover {
    color: var(--dn-text);
    background: var(--dn-surface-hover);
}

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

.dn-btn-primary:hover {
    background: var(--dn-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* User Menu */
.dn-user-menu {
    position: relative;
}

.dn-user-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0;
    background: transparent;
    border: 2px solid var(--dn-border);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--dn-transition-fast);
}

.dn-user-btn:hover {
    border-color: var(--dn-accent);
}

.dn-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--dn-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    overflow: hidden;
}

.dn-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dn-user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 280px;
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
    box-shadow: var(--dn-shadow-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--dn-transition);
    z-index: 1001;
}

.dn-user-menu.active .dn-user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dn-user-info {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px;
    border-bottom: 1px solid var(--dn-border-light);
}

.dn-user-avatar-lg {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--dn-accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    font-weight: 600;
    flex-shrink: 0;
    overflow: hidden;
}

.dn-user-avatar-lg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dn-user-details {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.dn-user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--dn-text);
}

.dn-user-email {
    font-size: 13px;
    color: var(--dn-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dn-user-links {
    padding: 10px;
}

.dn-user-link {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 14px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 450;
    color: var(--dn-text);
    text-decoration: none;
    background: transparent;
    border: none;
    border-radius: var(--dn-radius-sm);
    cursor: pointer;
    transition: all var(--dn-transition-fast);
    text-align: left;
}

.dn-user-link:hover {
    background: var(--dn-surface-hover);
    color: var(--dn-accent);
}

.dn-user-link svg {
    width: 18px;
    height: 18px;
    color: var(--dn-text-muted);
}

.dn-user-link:hover svg {
    color: var(--dn-accent);
}

/* ==========================================
   Search Modal
   ========================================== */
.dn-search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--dn-transition);
}

.dn-search-modal.active {
    opacity: 1;
    visibility: visible;
}

.dn-search-container {
    width: 100%;
    max-width: 640px;
    background: var(--dn-surface);
    border-radius: var(--dn-radius-lg);
    box-shadow: 0 25px 80px -20px rgba(0, 0, 0, 0.35);
    transform: translateY(-20px) scale(0.98);
    transition: all var(--dn-transition);
    overflow: hidden;
}

.dn-search-modal.active .dn-search-container {
    transform: translateY(0) scale(1);
}

.dn-search-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--dn-border-light);
}

.dn-search-header svg {
    width: 22px;
    height: 22px;
    color: var(--dn-text-muted);
    flex-shrink: 0;
}

.dn-search-input {
    flex: 1;
    font-family: inherit;
    font-size: 17px;
    color: var(--dn-text);
    background: transparent;
    border: none;
    outline: none;
}

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

.dn-search-close {
    font-size: 12px;
    font-family: inherit;
    font-weight: 500;
    color: var(--dn-text-muted);
    background: var(--dn-surface-hover);
    border: 1px solid var(--dn-border);
    border-radius: 5px;
    padding: 4px 8px;
    cursor: pointer;
    transition: all var(--dn-transition-fast);
}

.dn-search-close:hover {
    background: var(--dn-surface-active);
}

.dn-search-results {
    max-height: 420px;
    overflow-y: auto;
    padding: 12px;
}

.dn-search-empty {
    padding: 50px 20px;
    text-align: center;
    color: var(--dn-text-muted);
}

.dn-search-empty svg {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.dn-search-empty p {
    font-size: 15px;
    margin: 0;
}

.dn-search-group {
    margin-bottom: 20px;
}

.dn-search-group:last-child {
    margin-bottom: 0;
}

.dn-search-group-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--dn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 8px 12px;
}

.dn-search-result {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    text-decoration: none;
    border-radius: var(--dn-radius-md);
    transition: all var(--dn-transition-fast);
    cursor: pointer;
}

.dn-search-result:hover,
.dn-search-result.selected {
    background: var(--dn-surface-hover);
}

.dn-search-result-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dn-accent-light);
    border-radius: var(--dn-radius-sm);
    flex-shrink: 0;
}

.dn-search-result-icon svg {
    width: 18px;
    height: 18px;
    color: var(--dn-accent);
}

.dn-search-result-text {
    flex: 1;
    min-width: 0;
}

.dn-search-result-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--dn-text);
    margin-bottom: 2px;
}

.dn-search-result-title mark {
    background: rgba(99, 102, 241, 0.2);
    color: var(--dn-accent);
    padding: 1px 2px;
    border-radius: 3px;
}

.dn-search-result-path {
    font-size: 12px;
    color: var(--dn-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dn-search-result-arrow {
    width: 16px;
    height: 16px;
    color: var(--dn-text-muted);
    opacity: 0;
    transition: all var(--dn-transition-fast);
}

.dn-search-result:hover .dn-search-result-arrow {
    opacity: 1;
    transform: translateX(4px);
}

.dn-search-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--dn-surface-hover);
    border-top: 1px solid var(--dn-border-light);
}

.dn-search-hints {
    display: flex;
    align-items: center;
    gap: 16px;
}

.dn-search-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--dn-text-muted);
}

.dn-search-hint kbd {
    font-family: inherit;
    font-size: 11px;
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: 4px;
    padding: 2px 5px;
}

/* ==========================================
   Backdrop for dropdowns
   ========================================== */
.dn-backdrop {
    position: fixed;
    top: var(--dn-header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all var(--dn-transition);
    z-index: 998;
}

.dn-backdrop.active {
    opacity: 1;
    visibility: visible;
}

/* ==========================================
   Breadcrumb
   ========================================== */
.dn-breadcrumb-wrapper {
    background: var(--dn-surface);
    border-bottom: 1px solid var(--dn-border-light);
    margin-top: var(--dn-header-height);
}

.dn-breadcrumb {
    max-width: 1440px;
    margin: 0 auto;
    padding: 14px 32px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    flex-wrap: wrap;
}

.dn-breadcrumb-link {
    color: var(--dn-text-muted);
    text-decoration: none;
    transition: color var(--dn-transition-fast);
}

.dn-breadcrumb-link:hover {
    color: var(--dn-accent);
}

.dn-breadcrumb-sep {
    color: var(--dn-border);
}

.dn-breadcrumb-current {
    color: var(--dn-text);
    font-weight: 500;
}

/* ==========================================
   Mobile Toggle
   ========================================== */
.dn-mobile-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--dn-radius-md);
    cursor: pointer;
    transition: background var(--dn-transition-fast);
}

.dn-mobile-toggle:hover {
    background: var(--dn-surface-hover);
}

.dn-mobile-toggle svg {
    width: 22px;
    height: 22px;
    color: var(--dn-text);
}

.dn-icon-close {
    display: none;
}

.docs-nav-header.mobile-open .dn-icon-menu {
    display: none;
}

.docs-nav-header.mobile-open .dn-icon-close {
    display: block;
}

/* ==========================================
   Mobile Responsive
   ========================================== */
@media (max-width: 1200px) {
    .dn-nav-trigger {
        padding: 8px 10px;
        font-size: 13px;
    }
    
    .dn-search-btn {
        min-width: auto;
    }
    
    .dn-search-label {
        display: none;
    }
}

@media (max-width: 1024px) {
    .dn-mobile-toggle {
        display: flex;
    }
    
    .dn-nav {
        display: none;
        position: fixed;
        top: var(--dn-header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--dn-surface);
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        overflow-y: auto;
        z-index: 999;
    }
    
    .docs-nav-header.mobile-open .dn-nav {
        display: flex;
    }
    
    .dn-nav-item {
        height: auto;
    }
    
    .dn-nav-trigger {
        width: 100%;
        justify-content: space-between;
        padding: 14px 16px;
        font-size: 15px;
    }
    
    .dn-dropdown {
        position: static;
        transform: none;
        box-shadow: none;
        border-bottom: none;
        display: none;
        max-height: none;
        background: var(--dn-surface-hover);
        border-radius: var(--dn-radius-md);
        margin-bottom: 8px;
    }
    
    .dn-nav-item.active .dn-dropdown {
        display: block;
    }
    
    .dn-dropdown-content {
        padding: 16px;
    }
    
    .dn-dropdown-grid {
        grid-template-columns: 1fr !important;
        gap: 24px;
    }
    
    .dn-right {
        gap: 8px;
    }
    
    .dn-auth-buttons {
        display: none;
    }
    
    .dn-search-btn {
        padding: 8px 10px;
    }
    
    .dn-search-kbd {
        display: none;
    }
}

@media (max-width: 640px) {
    .dn-container {
        padding: 0 16px;
    }
    
    .dn-logo-text {
        display: none;
    }
    
    .dn-divider {
        display: none;
    }
    
    .dn-search-container {
        margin: 16px;
        max-width: calc(100% - 32px);
    }
    
    .dn-breadcrumb {
        padding: 12px 16px;
        font-size: 12px;
    }
}

/* ==========================================
   No Results Animation
   ========================================== */
@keyframes dn-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.7; }
}

.dn-search-empty svg {
    animation: dn-pulse 2s ease-in-out infinite;
}

/* ==========================================
   Loading Indicator
   ========================================== */
.dn-search-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.dn-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--dn-border);
    border-top-color: var(--dn-accent);
    border-radius: 50%;
    animation: dn-spin 0.8s linear infinite;
}

@keyframes dn-spin {
    to { transform: rotate(360deg); }
}
/* ==========================================
   Icon Buttons (App Switcher & Help)
   ========================================== */
.dn-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: var(--dn-radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--dn-transition-fast);
    color: var(--dn-text-secondary);
}

.dn-icon-btn:hover {
    background: var(--dn-surface-hover);
    color: var(--dn-text);
}

.dn-icon-btn svg {
    width: 20px;
    height: 20px;
}

/* ==========================================
   App Switcher — now handled by shared/centauri-apps-dropdown.css
   Legacy styles kept for compatibility
   ========================================== */

/* ==========================================
   Help Menu
   ========================================== */
.dn-help-menu {
    position: relative;
}

.dn-help-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--dn-surface);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
    box-shadow: var(--dn-shadow-dropdown);
    padding: 12px;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--dn-transition);
    z-index: 1000;
}

.dn-help-menu.active .dn-help-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dn-help-section {
    padding: 8px 0;
}

.dn-help-section:not(:last-child) {
    border-bottom: 1px solid var(--dn-border);
}

.dn-help-heading {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--dn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 12px;
    margin-bottom: 4px;
}

.dn-help-link {
    display: block;
    padding: 10px 12px;
    color: var(--dn-text);
    text-decoration: none;
    border-radius: var(--dn-radius-sm);
    font-size: 14px;
    transition: background var(--dn-transition-fast);
}

.dn-help-link:hover {
    background: var(--dn-surface-hover);
    color: var(--dn-accent);
}