/**
 * Universal Search Styles
 * =======================
 * 
 * State-of-the-Art Design mit:
 * - Glasmorphism Effects
 * - Smooth Animations
 * - Dark/Light Mode Support
 * - Mobile-First Responsive
 * - Accessibility (Focus States)
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    /* Search Colors */
    --search-bg: rgba(255, 255, 255, 0.98);
    --search-border: rgba(0, 0, 0, 0.1);
    --search-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    --search-text: #1a1a2e;
    --search-text-secondary: #6b7280;
    --search-highlight: #0ea5e9;
    --search-highlight-bg: transparent;
    --search-hover-bg: #f3f4f6;
    --search-selected-bg: #e5e7eb;
    --search-divider: #e5e7eb;
    --search-tab-active: #3b82f6;
    --search-badge-bg: #10b981;
    --search-radius: 16px;
    --search-radius-sm: 8px;
    
    /* Animations */
    --search-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --search-transition-fast: all 0.15s ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --search-bg: rgba(30, 30, 45, 0.98);
        --search-border: rgba(255, 255, 255, 0.1);
        --search-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        --search-text: #f9fafb;
        --search-text-secondary: #9ca3af;
        --search-hover-bg: rgba(255, 255, 255, 0.08);
        --search-selected-bg: rgba(255, 255, 255, 0.12);
        --search-divider: rgba(255, 255, 255, 0.1);
    }
}

/* ========================================
   Search Container
   ======================================== */
.search-container {
    position: relative;
    width: 100%;
    max-width: 400px;
}

/* ========================================
   Search Input
   ======================================== */
.navbar-search-input,
#search-input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    font-size: 14px;
    font-weight: 400;
    color: var(--search-text);
    background: var(--search-hover-bg);
    border: 1px solid transparent;
    border-radius: 24px;
    outline: none;
    transition: var(--search-transition);
}

.navbar-search-input:focus,
#search-input:focus {
    background: var(--search-bg);
    border-color: var(--search-highlight);
    box-shadow: none;
}

.navbar-search-input::placeholder,
#search-input::placeholder {
    color: var(--search-text-secondary);
}

/* Search Icon */
.search-container .search-icon,
.search-container .fa-search {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--search-text-secondary);
    font-size: 14px;
    pointer-events: none;
    z-index: 1;
}

/* ========================================
   Search Dropdown
   ======================================== */
.universal-search-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    min-width: 360px;
    max-width: 480px;
    max-height: 70vh;
    background: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: var(--search-radius);
    box-shadow: var(--search-shadow);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: var(--search-transition);
    z-index: 9999;
    
    /* Glasmorphism */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.universal-search-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.search-dropdown-inner {
    display: flex;
    flex-direction: column;
    max-height: 70vh;
}

/* ========================================
   Search Tabs
   ======================================== */
.search-tabs {
    display: flex;
    gap: 4px;
    padding: 12px;
    border-bottom: 1px solid var(--search-divider);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.search-tabs::-webkit-scrollbar {
    display: none;
}

.search-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--search-text-secondary);
    background: transparent;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--search-transition-fast);
}

.search-tab:hover {
    background: var(--search-hover-bg);
    color: var(--search-text);
}

.search-tab.active {
    background: var(--search-highlight-bg);
    color: var(--search-highlight);
}

.search-tab i {
    font-size: 12px;
}

/* ========================================
   Search Loading
   ======================================== */
.search-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 24px;
    color: var(--search-text-secondary);
    font-size: 14px;
}

.search-loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--search-divider);
    border-top-color: var(--search-highlight);
    border-radius: 50%;
    animation: search-spin 0.8s linear infinite;
}

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

/* ========================================
   Search Results
   ======================================== */
.search-results {
    overflow-y: auto;
    max-height: calc(70vh - 140px);
    scrollbar-width: thin;
    scrollbar-color: var(--search-divider) transparent;
}

.search-results::-webkit-scrollbar {
    width: 6px;
}

.search-results::-webkit-scrollbar-thumb {
    background: var(--search-divider);
    border-radius: 3px;
}

/* Result Section */
.search-result-section {
    padding: 8px 0;
}

.search-result-section:not(:last-child) {
    border-bottom: 1px solid var(--search-divider);
}

.search-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--search-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-section-header i {
    font-size: 11px;
}

.search-count {
    margin-left: auto;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--search-text-secondary);
    background: var(--search-hover-bg);
    border-radius: 10px;
}

/* Result Item */
.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--search-text);
    text-decoration: none;
    cursor: pointer;
    transition: var(--search-transition-fast);
}

.search-result-item:hover,
.search-result-item.selected {
    background: var(--search-hover-bg);
}

.search-result-item.selected {
    background: var(--search-selected-bg);
}

.search-result-item:focus {
    outline: 2px solid var(--search-highlight);
    outline-offset: -2px;
}

/* Avatar */
.search-result-avatar {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--search-hover-bg);
    border-radius: 50%;
    overflow: hidden;
}

.search-result-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.search-result-avatar i {
    font-size: 16px;
    color: var(--search-text-secondary);
}

.search-result-avatar.event-avatar,
.search-result-avatar.post-avatar {
    border-radius: var(--search-radius-sm);
}

/* Content */
.search-result-content {
    flex: 1;
    min-width: 0;
}

.search-result-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--search-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-title mark {
    background: var(--search-highlight-bg);
    color: var(--search-highlight);
    padding: 0 2px;
    border-radius: 2px;
}

.search-result-subtitle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--search-text-secondary);
    margin-top: 2px;
}

.search-result-subtitle i {
    font-size: 10px;
}

/* Badges */
.verified-badge {
    flex-shrink: 0;
    color: var(--search-highlight);
    font-size: 14px;
}

.search-result-tag {
    flex-shrink: 0;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 500;
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 12px;
}

/* View All Link */
.search-view-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px;
    font-size: 13px;
    font-weight: 500;
    color: var(--search-highlight);
    text-decoration: none;
    transition: var(--search-transition-fast);
}

.search-view-all:hover {
    background: var(--search-highlight-bg);
}

/* ========================================
   Empty State
   ======================================== */
.search-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px;
    text-align: center;
    color: var(--search-text-secondary);
}

.search-empty i {
    font-size: 32px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.search-empty p {
    font-size: 14px;
    margin: 0;
}

/* ========================================
   Initial State (Suggestions)
   ======================================== */
.search-initial {
    padding: 8px 0;
}

.search-recent-section,
.search-trending-section {
    padding: 8px 0;
}

.search-recent-section:not(:empty) + .search-trending-section {
    border-top: 1px solid var(--search-divider);
}

.search-recent-section .search-section-header,
.search-trending-section .search-section-header {
    justify-content: space-between;
}

.search-clear-recent {
    font-size: 12px;
    font-weight: 400;
    color: var(--search-highlight);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--search-transition-fast);
}

.search-clear-recent:hover {
    text-decoration: underline;
}

.search-recent-list,
.search-trending-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 16px;
}

.search-recent-item,
.search-trending-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 13px;
    color: var(--search-text);
    background: var(--search-hover-bg);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--search-transition-fast);
}

.search-recent-item:hover,
.search-trending-item:hover {
    background: var(--search-selected-bg);
}

.search-recent-item.selected,
.search-trending-item.selected {
    background: var(--search-highlight-bg);
    color: var(--search-highlight);
}

.search-recent-item i,
.search-trending-item i {
    font-size: 11px;
    color: var(--search-text-secondary);
}

.search-trending-item i {
    color: #f59e0b;
}

/* ========================================
   Error State
   ======================================== */
.search-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    text-align: center;
    color: #ef4444;
}

.search-error i {
    font-size: 24px;
    margin-bottom: 8px;
}

.search-error p {
    font-size: 14px;
    margin: 0;
}

/* ========================================
   Footer
   ======================================== */
.search-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-top: 1px solid var(--search-divider);
    background: var(--search-hover-bg);
}

.search-hint {
    font-size: 11px;
    color: var(--search-text-secondary);
}

.search-hint kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    font-family: inherit;
    font-size: 11px;
    font-weight: 500;
    color: var(--search-text-secondary);
    background: var(--search-bg);
    border: 1px solid var(--search-border);
    border-radius: 4px;
    box-shadow: 0 1px 0 var(--search-border);
}

/* ========================================
   Mobile Responsive
   ======================================== */
@media (max-width: 640px) {
    .search-container {
        max-width: 100%;
    }
    
    .universal-search-dropdown {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        min-width: auto;
        max-width: none;
        max-height: calc(100vh - 60px);
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .search-tabs {
        padding: 8px 12px;
    }
    
    .search-tab {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .search-footer {
        display: none;
    }
    
    .search-result-item {
        padding: 12px 16px;
    }
    
    .search-result-avatar {
        width: 38px;
        height: 38px;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes search-fade-in {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-result-section {
    animation: search-fade-in 0.2s ease forwards;
}

.search-result-section:nth-child(1) { animation-delay: 0s; }
.search-result-section:nth-child(2) { animation-delay: 0.05s; }
.search-result-section:nth-child(3) { animation-delay: 0.1s; }

/* ========================================
   High Contrast Mode
   ======================================== */
@media (prefers-contrast: high) {
    .universal-search-dropdown {
        border-width: 2px;
    }
    
    .search-result-item:focus {
        outline-width: 3px;
    }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .universal-search-dropdown,
    .search-result-item,
    .search-tab,
    .search-recent-item,
    .search-trending-item {
        transition: none;
    }
    
    .search-loading-spinner {
        animation: none;
    }
    
    .search-result-section {
        animation: none;
    }
}