/**
 * Professional Search System Styles v2
 * Desktop header search + Mobile search overlay
 * Inspired by LinkedIn / GitHub search UX
 */

:root {
    --search-primary: #1d9a8a;
    --search-primary-dark: #0f5c52;
    --search-secondary: #6a60f0;
    --search-bg: rgba(255, 255, 255, 0.12);
    --search-bg-focus: #ffffff;
    --search-border: rgba(255, 255, 255, 0.25);
    --search-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    --search-shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.18);
    --text-dark: #1c1e21;
    --text-muted: #65676b;
    --radius-lg: 24px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   HEADER SEARCH BAR — DESKTOP
   =================================== */

.professional-search-container {
    position: relative;
    flex: 0 0 auto;
    min-width: 280px;
    max-width: 380px;
    margin: 0 auto;
}

.search-bar-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 9px 18px;
    transition: all var(--transition-smooth);
    cursor: pointer;
    user-select: none;
}

.search-bar-wrapper:hover {
    background: rgba(255, 255, 255, 0.28);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.search-bar-wrapper:active {
    transform: translateY(0);
    background: rgba(255, 255, 255, 0.35);
}

.search-icon {
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    margin-right: 10px;
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.search-bar-wrapper:hover .search-icon {
    color: #ffffff;
}

.professional-search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 13.5px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.85);
    padding: 1px 0;
    min-width: 0;
    pointer-events: none;
    cursor: pointer;
    caret-color: transparent;
}

.professional-search-input::placeholder {
    color: rgba(255, 255, 255, 0.65);
    font-weight: 400;
}

.professional-search-input:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Keyboard shortcut hint */
.search-shortcut {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    font-family: inherit;
    margin-left: 8px;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.search-bar-wrapper:hover .search-shortcut {
    background: rgba(255, 255, 255, 0.22);
    color: rgba(255, 255, 255, 0.8);
}

.search-login-hint {
    position: absolute;
    right: 16px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    background: rgba(255, 255, 255, 0.12);
    padding: 3px 10px;
    border-radius: 10px;
    pointer-events: none;
}

/* ===================================
   AUTOCOMPLETE DROPDOWN
   =================================== */

.search-autocomplete-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--search-shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    max-height: 480px;
    overflow-y: auto;
    z-index: 1050;
    animation: searchSlideDown 0.15s ease;
}

@keyframes searchSlideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.autocomplete-section {
    padding: 8px 0;
    border-bottom: 1px solid #f0f2f5;
}

.autocomplete-section:last-child {
    border-bottom: none;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 16px 4px;
}

.section-header span {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.section-header i {
    margin-right: 5px;
    font-size: 11px;
}

.clear-history-btn {
    background: none;
    border: none;
    color: var(--search-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.clear-history-btn:hover {
    background: rgba(29, 154, 138, 0.1);
}

/* History Item */
.history-item {
    display: flex;
    align-items: center;
    padding: 9px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.history-item:hover {
    background: #f5f6f8;
}

.history-item i {
    color: var(--text-muted);
    font-size: 13px;
    margin-right: 12px;
    width: 18px;
    text-align: center;
}

.history-item-text {
    flex: 1;
    font-size: 14px;
    color: var(--text-dark);
}

.history-item-count {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: 8px;
}

/* Suggestion Item */
.suggestion-item {
    display: flex;
    align-items: center;
    padding: 9px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
    gap: 12px;
}

.suggestion-item:hover {
    background: #f5f6f8;
}

.suggestion-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid #e4e6eb;
}

.suggestion-info {
    flex: 1;
    min-width: 0;
}

.suggestion-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.suggestion-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.suggestion-category {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.suggestion-category i {
    font-size: 10px;
}

.suggestion-status {
    flex-shrink: 0;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.status-badge.connected {
    background: #e7f3ff;
    color: #0084ff;
}

.status-badge.pending {
    background: #fff3cd;
    color: #856404;
}

.status-badge.add-friend {
    background: rgba(29, 154, 138, 0.1);
    color: var(--search-primary);
}

/* View All Results link */
.search-view-all {
    padding: 8px 16px;
    border-top: 1px solid #f0f2f5;
}

.search-view-all a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    color: var(--search-primary);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition-fast);
}

.search-view-all a:hover {
    background: rgba(29, 154, 138, 0.06);
}

/* Loading & Empty States */
.search-loading,
.search-empty {
    padding: 28px 16px;
    text-align: center;
    color: var(--text-muted);
}

.search-loading i {
    font-size: 20px;
    color: var(--search-primary);
    margin-bottom: 6px;
}

.search-empty i {
    font-size: 28px;
    color: var(--text-muted);
    margin-bottom: 8px;
    opacity: 0.4;
}

.search-empty p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
}

/* Scrollbar Styling */
.search-autocomplete-dropdown::-webkit-scrollbar {
    width: 6px;
}

.search-autocomplete-dropdown::-webkit-scrollbar-track {
    background: transparent;
}

.search-autocomplete-dropdown::-webkit-scrollbar-thumb {
    background: #d0d0d0;
    border-radius: 3px;
}

/* ===================================
   MOBILE SEARCH OVERLAY
   =================================== */

.mobile-search-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    animation: mobileSearchSlideUp 0.25s ease;
}

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

.mobile-search-overlay__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: linear-gradient(120deg, rgba(29, 154, 138, 0.95), rgba(106, 96, 240, 0.9));
    position: sticky;
    top: 0;
    z-index: 10;
}

.mobile-search-overlay__back {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s;
}

.mobile-search-overlay__back:hover {
    background: rgba(255, 255, 255, 0.3);
}

.mobile-search-overlay__input-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 22px;
    padding: 8px 14px;
    gap: 8px;
}

.mobile-search-overlay__input-wrap > i {
    color: var(--search-primary);
    font-size: 14px;
    flex-shrink: 0;
}

.mobile-search-overlay__input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 15px;
    color: var(--text-dark);
    padding: 0;
    min-width: 0;
}

.mobile-search-overlay__input::placeholder {
    color: #999;
}

.mobile-search-overlay__clear {
    background: none;
    border: none;
    color: #999;
    font-size: 14px;
    padding: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-search-overlay__body {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
    padding-bottom: 80px;
}

/* Mobile overlay sections */
.mobile-search-overlay__section {
    padding: 4px 0;
}

.mobile-search-overlay__section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px 6px;
}

.mobile-search-overlay__section-header span {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mobile-search-overlay__section-header i {
    margin-right: 4px;
    font-size: 11px;
}

.mobile-search-overlay__clear-btn {
    background: none;
    border: none;
    color: var(--search-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    cursor: pointer;
}

/* Mobile result item */
.mobile-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
}

.mobile-result-item:hover,
.mobile-result-item:active {
    background: #f5f6f8;
    color: inherit;
}

.mobile-result-item__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid #e8e8e8;
}

.mobile-result-item__info {
    flex: 1;
    min-width: 0;
}

.mobile-result-item__name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-result-item__meta {
    font-size: 12px;
    color: var(--text-muted);
}

.mobile-result-item__arrow {
    color: #ccc;
    font-size: 12px;
}

/* Mobile history item */
.mobile-history-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.15s;
}

.mobile-history-item:hover {
    background: #f5f6f8;
}

.mobile-history-item i {
    color: var(--text-muted);
    font-size: 14px;
    width: 20px;
    text-align: center;
}

.mobile-history-item span {
    flex: 1;
    font-size: 15px;
    color: var(--text-dark);
}

/* Quick link / suggestion items */
.mobile-search-suggestion-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-dark);
    transition: background 0.15s;
}

.mobile-search-suggestion-item:hover {
    background: #f5f6f8;
    color: var(--text-dark);
}

.suggestion-icon-circle {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(29, 154, 138, 0.1), rgba(106, 96, 240, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.suggestion-icon-circle i {
    font-size: 16px;
    color: var(--search-primary);
}

.mobile-search-suggestion-item span {
    font-size: 15px;
    font-weight: 500;
}

/* Mobile empty / loading */
.mobile-search-overlay__empty,
.mobile-search-overlay__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
}

.mobile-search-overlay__empty i,
.mobile-search-overlay__loading i {
    font-size: 36px;
    opacity: 0.35;
    margin-bottom: 12px;
}

.mobile-search-overlay__loading i {
    opacity: 0.7;
    color: var(--search-primary);
}

.mobile-search-overlay__empty p,
.mobile-search-overlay__loading p {
    font-size: 15px;
    margin: 0;
}

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

@media (max-width: 991px) {
    .professional-search-container {
        display: none !important;
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
    .professional-search-container {
        min-width: 260px;
        max-width: 340px;
    }
}

@media (min-width: 1200px) {
    .professional-search-container {
        min-width: 320px;
        max-width: 420px;
    }
}