/**
 * Hamburger Menu & Extended Menu Styles
 * Features:
 * - Hamburger icon on mobile
 * - Expandable menu on desktop
 * - Corpus search panel
 * - Smooth animations
 * - Accessibility support
 */

/* ============================================
   HAMBURGER MENU BUTTON
   ============================================ */

.hamburger-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 10001;
    position: relative;
    min-height: 48px;
    min-width: 48px;
    align-items: center;
}

.hamburger-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text-primary, #f8f9fa);
    border-radius: 3px;
    transition: background 0.2s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: center;
}

.hamburger-menu-btn:hover span {
    background: var(--color-primary, #8b7fff);
}

.hamburger-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
}

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

.hamburger-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-8px);
}

.hamburger-menu-btn:focus-visible {
    outline: 2px solid var(--color-primary, #8b7fff);
    outline-offset: 4px;
    border-radius: 4px;
}

/* ============================================
   EXTENDED MENU TRIGGER (Desktop)
   ============================================ */

.extended-menu-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.1);
    border: 1px solid rgba(var(--color-primary-rgb, 139, 127, 255), 0.3);
    border-radius: 8px;
    color: var(--color-text-primary, #f8f9fa);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.extended-menu-btn:hover {
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.2);
    border-color: var(--color-primary, #8b7fff);
    transform: translateY(-1px);
}

.extended-menu-btn:focus-visible {
    outline: 2px solid var(--color-primary, #8b7fff);
    outline-offset: 2px;
}

.extended-menu-btn .menu-icon {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.extended-menu-btn.active .menu-icon {
    transform: rotate(90deg);
}

/* ============================================
   EXTENDED MENU PANEL (Slide-out)
   ============================================ */

.extended-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    z-index: 9998;
    transition: opacity 0.35s cubic-bezier(0.32, 0.72, 0.12, 1), visibility 0.35s cubic-bezier(0.32, 0.72, 0.12, 1);
}

.extended-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.extended-menu-panel {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    max-width: 90vw;
    height: 100vh;
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.98);
    backdrop-filter: blur(30px) saturate(180%);
    border-left: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.8);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    transition: right 0.35s cubic-bezier(0.32, 0.72, 0.12, 1);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.extended-menu-panel.active {
    right: 0;
}

/* Panel Header */
.extended-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.6);
    background: rgba(var(--color-bg-secondary-rgb, 21, 26, 53), 0.5);
    position: sticky;
    top: 0;
    z-index: 10;
}

.extended-menu-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary, #f8f9fa);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.extended-menu-close {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.6);
    border-radius: 8px;
    color: var(--color-text-secondary, #adb5bd);
    font-size: 1.25rem;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    min-height: 48px;
    min-width: 48px;
}

.extended-menu-close:hover {
    background: rgba(255, 100, 100, 0.2);
    border-color: rgba(255, 100, 100, 0.4);
    color: #ff6b6b;
}

/* Panel Content */
.extended-menu-content {
    padding: 1.5rem;
}

/* Navigation Section in Panel */
.panel-nav-section {
    margin-bottom: 2rem;
}

.panel-nav-section h3 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted, #6c757d);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
}

.panel-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.panel-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.4);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.3);
    border-radius: 10px;
    color: var(--color-text-primary, #f8f9fa);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-height: 48px;
}

.panel-nav-link:hover {
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.15);
    border-color: rgba(var(--color-primary-rgb, 139, 127, 255), 0.3);
    transform: translateX(6px);
}

.panel-nav-link:active {
    transform: translateX(3px);
}

.panel-nav-link .link-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

/* ============================================
   CORPUS SEARCH SECTION
   ============================================ */

.corpus-search-section {
    background: rgba(var(--color-bg-secondary-rgb, 21, 26, 53), 0.4);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.corpus-search-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary, #f8f9fa);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.corpus-search-section h3 .section-icon {
    color: var(--color-secondary, #ff7eb6);
}

/* Search Input */
.corpus-search-input-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.corpus-search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.6);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.6);
    border-radius: 10px;
    color: var(--color-text-primary, #f8f9fa);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.corpus-search-input:focus {
    outline: none;
    border-color: var(--color-primary, #8b7fff);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb, 139, 127, 255), 0.15);
}

.corpus-search-input::placeholder {
    color: var(--color-text-muted, #6c757d);
}

.corpus-search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted, #6c757d);
    font-size: 1rem;
    pointer-events: none;
}

/* Search Filters */
.corpus-search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.filter-group {
    flex: 1;
    min-width: 120px;
}

.filter-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-muted, #6c757d);
    margin-bottom: 0.35rem;
}

.filter-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.6);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.6);
    border-radius: 8px;
    color: var(--color-text-primary, #f8f9fa);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--color-primary, #8b7fff);
}

.filter-group select option {
    background: var(--color-bg-card, #1a1f3a);
    color: var(--color-text-primary, #f8f9fa);
}

/* Search Button */
.corpus-search-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary, #8b7fff), var(--color-secondary, #ff7eb6));
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 48px;
}

.corpus-search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb, 139, 127, 255), 0.4);
}

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

.corpus-search-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   CORPUS SEARCH RESULTS
   ============================================ */

.corpus-search-results {
    max-height: 400px;
    overflow-y: auto;
    margin-top: 1rem;
}

.corpus-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
}

.corpus-results-count {
    font-size: 0.85rem;
    color: var(--color-text-secondary, #adb5bd);
}

.corpus-results-clear {
    font-size: 0.8rem;
    color: var(--color-secondary, #ff7eb6);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.corpus-results-clear:hover {
    background: rgba(var(--color-secondary-rgb, 255, 126, 182), 0.15);
}

/* Result Item */
.corpus-result-item {
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.4);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.3);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.corpus-result-item:hover {
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.1);
    border-color: rgba(var(--color-primary-rgb, 139, 127, 255), 0.3);
    transform: translateX(2px);
}

.corpus-result-item:last-child {
    margin-bottom: 0;
}

.result-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.result-item-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary, #8b7fff);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-item-name .entity-icon {
    font-size: 1rem;
}

.result-item-badges {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.result-badge {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.15);
    color: var(--color-primary, #8b7fff);
    border: 1px solid rgba(var(--color-primary-rgb, 139, 127, 255), 0.2);
}

.result-badge.mythology-badge {
    background: rgba(var(--color-secondary-rgb, 255, 126, 182), 0.15);
    color: var(--color-secondary, #ff7eb6);
    border-color: rgba(var(--color-secondary-rgb, 255, 126, 182), 0.2);
}

.result-badge.type-badge {
    background: rgba(81, 207, 102, 0.15);
    color: #51cf66;
    border-color: rgba(81, 207, 102, 0.2);
}

.result-item-description {
    font-size: 0.85rem;
    color: var(--color-text-secondary, #adb5bd);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.result-item-match {
    font-size: 0.8rem;
    color: var(--color-text-muted, #6c757d);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.3);
}

.result-item-match strong {
    color: var(--color-secondary, #ff7eb6);
}

/* Pagination */
.corpus-results-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
}

.pagination-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-bg-card-rgb, 26, 31, 58), 0.4);
    border: 1px solid rgba(var(--color-border-primary-rgb, 42, 47, 74), 0.4);
    border-radius: 8px;
    color: var(--color-text-secondary, #adb5bd);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    min-height: 44px;
    min-width: 44px;
}

.pagination-btn:hover:not(:disabled) {
    background: rgba(var(--color-primary-rgb, 139, 127, 255), 0.15);
    border-color: rgba(var(--color-primary-rgb, 139, 127, 255), 0.3);
    color: var(--color-primary, #8b7fff);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn.active {
    background: var(--color-primary, #8b7fff);
    border-color: var(--color-primary, #8b7fff);
    color: white;
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--color-text-muted, #6c757d);
    padding: 0 0.5rem;
}

/* Loading State */
.corpus-search-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--color-text-secondary, #adb5bd);
}

.corpus-search-loading .loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(var(--color-primary-rgb, 139, 127, 255), 0.2);
    border-top-color: var(--color-primary, #8b7fff);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 0.75rem;
}

/* Empty State */
.corpus-search-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--color-text-muted, #6c757d);
}

.corpus-search-empty .empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.corpus-search-empty p {
    font-size: 0.9rem;
    margin: 0;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Mobile - Hide extended menu button (mobile nav handles navigation) */
@media (max-width: 900px) {
    .extended-menu-btn {
        display: none;
    }

    .extended-menu-panel {
        width: 100%;
        max-width: none;
        right: -100%;
    }

    .corpus-search-filters {
        flex-direction: column;
    }

    .filter-group {
        min-width: 100%;
    }

    /* Add corpus search link to mobile nav */
    .mobile-nav-corpus-search {
        display: block;
    }
}

/* Tablet */
@media (min-width: 901px) and (max-width: 1024px) {
    .extended-menu-panel {
        width: 380px;
    }

    .extended-menu-btn .menu-label {
        display: none;
    }
}

/* Desktop - Show extended menu button */
@media (min-width: 901px) {
    .extended-menu-btn {
        display: flex;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .extended-menu-btn .menu-label {
        display: inline;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (hover: none) {
    .panel-nav-link:hover {
        transform: none;
    }

    .corpus-result-item:hover {
        transform: none;
    }

    .corpus-search-btn:hover {
        transform: none;
    }

    .panel-nav-link:active {
        transform: scale(0.98);
        transition-duration: 0.1s;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hamburger-menu-btn span,
    .extended-menu-panel,
    .extended-menu-overlay,
    .corpus-result-item,
    .panel-nav-link,
    .corpus-search-btn,
    .pagination-btn {
        transition: none;
    }

    .corpus-search-loading .loading-spinner {
        animation: none;
    }
}

/* ============================================
   EXTENDED MENU SPECIFIC STYLES
   ============================================ */

/* Corpus search description text */
.corpus-search-description {
    font-size: 0.85rem;
    color: var(--color-text-muted, #6c757d);
    margin-bottom: 1rem;
}

/* Admin tools section - hidden by default, shown via JS */
.admin-tools-section {
    /* JS will toggle display */
}

/* Admin section icon color */
.admin-tools-section h3 .section-icon {
    color: #ffa500;
}

/* Admin link icons with specific colors */
.admin-link .link-icon.icon-moderation {
    color: #ff6b6b;
}

.admin-link .link-icon.icon-banned {
    color: #ffa500;
}

.admin-link .link-icon.icon-flagged {
    color: #ffd43b;
}

.admin-link .link-icon.icon-history {
    color: #6c757d;
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */

@media (prefers-contrast: high) {
    .extended-menu-panel {
        border-left-width: 2px;
    }

    .corpus-search-input,
    .filter-group select,
    .corpus-result-item,
    .panel-nav-link {
        border-width: 2px;
    }

    .corpus-search-btn {
        background: var(--color-primary, #8b7fff);
    }
}