/* ═══════════════════════════════════════════════════════════
   UNIVERSAL SEARCH — Premium Design
   Dark glass command palette with warm amber accents
   ═══════════════════════════════════════════════════════════ */

.us-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9998;
    animation: us-fade-in 0.15s ease;
}

@keyframes us-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.us-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(720px, 94vw);
    max-height: 82vh;
    background: #141417;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 18px;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.04) inset,
        0 32px 80px rgba(0,0,0,0.8),
        0 0 60px rgba(0,0,0,0.4);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: inherit;
    animation: us-slide-up 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes us-slide-up {
    from { opacity: 0; transform: translate(-50%, calc(-50% + 12px)); }
    to   { opacity: 1; transform: translate(-50%, -50%); }
}

/* Search Bar */
.us-search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 20px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.us-search-icon {
    color: rgba(255,255,255,0.35);
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.us-search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 17px;
    font-family: inherit;
    font-weight: 400;
    color: rgba(255,255,255,0.93);
    caret-color: #f59e0b;
    letter-spacing: 0.01em;
}

.us-search-input::placeholder { color: rgba(255,255,255,0.25); }

.us-search-count {
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 60px;
    text-align: right;
}

.us-close-btn {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.04);
    color: rgba(255,255,255,0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
}

.us-close-btn:hover {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    border-color: rgba(255,255,255,0.15);
}

/* Filters Bar */
.us-filters-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.us-filter-group { display: flex; align-items: center; gap: 6px; }
.us-filter-dates { display: flex; align-items: center; gap: 6px; }

.us-filter-label {
    font-size: 10px;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.us-select,
.us-date-input {
    font-size: 12px;
    padding: 4px 28px 4px 10px;
    height: 30px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    color: rgba(255,255,255,0.85);
    cursor: pointer;
    outline: none;
    font-family: inherit;
    transition: border-color 0.15s, background 0.15s;
    /* Force consistent dark appearance across browsers */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    /* Custom dropdown arrow */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='rgba(255,255,255,0.35)' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 10px;
}

.us-select option {
    background: #1a1a1f;
    color: rgba(255,255,255,0.9);
    padding: 6px 10px;
}

.us-date-input {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: none;
    padding: 4px 10px;
}

.us-date-input::-webkit-calendar-picker-indicator {
    filter: invert(0.7);
    cursor: pointer;
}

.us-select:hover,
.us-date-input:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.18);
}

.us-select:focus,
.us-date-input:focus {
    border-color: rgba(245,158,11,0.6);
    background-color: rgba(255,255,255,0.09);
    box-shadow: 0 0 0 2px rgba(245,158,11,0.12);
}

.us-clear-btn {
    font-size: 10px;
    padding: 3px 8px;
    height: 26px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: rgba(255,255,255,0.35);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
    margin-left: auto;
}

.us-clear-btn:hover {
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.6);
}

/* Body */
.us-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    padding: 8px 0 4px;
}

.us-body::-webkit-scrollbar { width: 5px; }
.us-body::-webkit-scrollbar-track { background: transparent; }
.us-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
.us-body::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.16); }

/* Empty State */
.us-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 48px 24px 40px;
    text-align: center;
}

.us-spinner {
    width: 30px;
    height: 30px;
    border: 2px solid rgba(255,255,255,0.08);
    border-top-color: rgba(245,158,11,0.7);
    border-radius: 50%;
    animation: us-spin 0.65s linear infinite;
    margin-bottom: 6px;
}

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

.us-search-illustration {
    color: rgba(255,255,255,0.18);
    margin-bottom: 4px;
}

.us-empty-title {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    margin: 0;
}

.us-empty-title strong { color: rgba(255,255,255,0.7); }

.us-empty-sub {
    font-size: 12px;
    color: rgba(255,255,255,0.25);
    margin: 0;
}

.us-feature-pills {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 6px;
}

.us-feature-pill {
    font-size: 10px;
    padding: 3px 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    color: rgba(255,255,255,0.3);
}

/* Results List */
.us-results-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 8px;
}

/* Session Group */
.us-session-group {
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
    background: rgba(255,255,255,0.02);
}

.us-session-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    user-select: none;
    transition: background 0.12s;
}

.us-session-header:hover { background: rgba(255,255,255,0.04); }

.us-session-caret {
    color: rgba(255,255,255,0.25);
    font-size: 9px;
    flex-shrink: 0;
    width: 14px;
}

.us-session-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.us-session-name {
    font-size: 12px;
    font-weight: 600;
    color: rgba(255,255,255,0.7);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.us-session-agent-badge {
    font-size: 10px;
    padding: 1px 7px;
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.25);
    border-radius: 20px;
    color: rgba(245,158,11,0.8);
    white-space: nowrap;
    flex-shrink: 0;
}

.us-session-count {
    font-size: 10px;
    color: rgba(255,255,255,0.22);
    flex-shrink: 0;
}

.us-session-messages { display: flex; flex-direction: column; }

/* Result Item */
.us-result-item {
    display: flex;
    align-items: stretch;
    cursor: pointer;
    transition: background 0.1s;
    border-top: 1px solid rgba(255,255,255,0.04);
}

.us-result-item:first-child { border-top: none; }
.us-result-item:hover { background: rgba(255,255,255,0.05); }
.us-result-item:hover .us-result-arrow { opacity: 1; transform: translateX(0); }

.us-result-accent {
    width: 3px;
    flex-shrink: 0;
    background: transparent;
    transition: background 0.15s;
}

.us-result-item:hover .us-result-accent { background: rgba(245,158,11,0.5); }

.us-result-content {
    flex: 1;
    padding: 9px 10px 9px 8px;
    min-width: 0;
}

.us-result-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 3px;
    flex-wrap: wrap;
}

.us-result-icon { font-size: 13px; flex-shrink: 0; line-height: 1; }

.us-result-from {
    font-size: 11px;
    font-weight: 600;
    color: rgba(255,255,255,0.5);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.us-result-time { font-size: 10px; color: rgba(255,255,255,0.25); flex-shrink: 0; }
.us-result-img-badge { font-size: 10px; flex-shrink: 0; }

.us-result-text {
    font-size: 12px;
    line-height: 1.55;
    color: rgba(255,255,255,0.45);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.us-result-arrow {
    display: flex;
    align-items: center;
    padding: 0 12px 0 4px;
    color: rgba(255,255,255,0.2);
    font-size: 14px;
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 0.15s, transform 0.15s;
    flex-shrink: 0;
}

.us-result-score {
    font-size: 9px;
    padding: 2px 5px;
    background: rgba(245,158,11,0.12);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: 5px;
    color: rgba(245,158,11,0.7);
    align-self: center;
    flex-shrink: 0;
    margin-right: 8px;
}

/* Highlight */
.us-highlight {
    background: rgba(245,158,11,0.22);
    color: rgba(255,255,255,0.92);
    border-radius: 2px;
    padding: 0 1px;
    font-weight: 500;
}

/* Footer / History */
.us-footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 8px 20px 12px;
    flex-shrink: 0;
}

.us-section-header { display: flex; align-items: center; margin-bottom: 6px; }

.us-section-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.2);
}

.us-history-row { display: flex; gap: 6px; flex-wrap: wrap; }

.us-history-chip {
    font-size: 11px;
    padding: 3px 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 20px;
    color: rgba(255,255,255,0.45);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
    white-space: nowrap;
}

.us-history-chip:hover {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.75);
    border-color: rgba(255,255,255,0.15);
}