* { font-family: 'Inter', sans-serif; }

/* Hide scrollbar across all browsers */
html { scrollbar-width: none; } /* Firefox */
html::-webkit-scrollbar { display: none; } /* Chrome, Safari, Edge, Arc */

body {
    background-color: #ECEEF2;
    min-height: 100vh;
}

.container {
    max-width: 1300px;
    padding-top: 40px;
    padding-bottom: 60px;
}

/* HEADER */
.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 36px;
    flex-wrap: wrap;
    gap: 12px;
}

.demo-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: #111827;
    margin: 0;
    letter-spacing: -0.3px;
}

.demo-title span { color: #6366F1; }
.demo-title span.demo-title-logo { font-family: 'Pixelify Sans', sans-serif; color: #111827; font-size: 1.65rem; }

.back-btn {
    font-size: 0.8rem;
    font-weight: 500;
    color: #4B5563;
    border: 1px solid #D1D5DB;
    background: white;
    border-radius: 8px;
    padding: 6px 14px;
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}

.back-btn:hover {
    background: #F9FAFB;
    border-color: #9CA3AF;
    color: #111827;
    text-decoration: none;
}

/* SELECTOR CARDS */
.selector-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .selector-grid { grid-template-columns: 1fr; }
}

.selector-card {
    background: white;
    border-radius: 12px;
    border: 1px solid #E5E7EB;
    padding: 18px 18px 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    min-width: 0;
}

.selector-card-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #9CA3AF;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.selector-card-title .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-cc { background: #8B5CF6; }
.dot-hf { background: #3B82F6; }

.sample-btn {
    background: #F9FAFB;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 0.8rem;
    color: #374151;
    cursor: pointer;
    transition: all 0.15s;
    font-weight: 500;
    outline: none;
    white-space: nowrap;
    flex: 1;
    text-align: center;
}

.sample-btn:hover:not(:disabled) {
    background: #F3F4F6;
    border-color: #9CA3AF;
    color: #111827;
}

.sample-btn.active {
    background: #EEF2FF;
    border-color: #6366F1;
    color: #4338CA;
}

.sample-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.sample-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* OUTPUT TABS */
.tab-bar {
    display: flex;
    gap: 2px;
    border-bottom: 1px solid #E5E7EB;
    padding: 10px 14px 0;
    flex-wrap: nowrap;
}

.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 6px 12px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #9CA3AF;
    cursor: pointer;
    transition: all 0.15s;
    outline: none;
    margin-bottom: -1px;
    white-space: nowrap;
}

.tab-btn:hover { color: #6B7280; }

.tab-btn.active {
    color: #6366F1;
    border-bottom-color: #6366F1;
}

.tab-pane {
    display: none;
    padding: 18px;
    font-size: 0.875rem;
    color: #374151;
    line-height: 1.75;
}

.tab-pane.active { display: block; }

/* RESULT PANELS */
.panels-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

@media (max-width: 768px) {
    .panels-grid { grid-template-columns: 1fr; }
}

.panel {
    background: white;
    border-radius: 12px;
    border: 1px solid #E5E7EB;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 13px 18px;
    border-bottom: 1px solid #F3F4F6;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #9CA3AF;
}

.panel-body {
    padding: 18px;
    flex: 1;
    min-height: 280px;
}

.panel img.preview {
    max-width: 100%;
    max-height: 420px;
    width: 100%;
    object-fit: contain;
    border-radius: 8px;
    display: block;
}

.panel-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 18px;
    border-bottom: 1px solid #F3F4F6;
}

.panel-header-row .panel-header {
    padding: 0;
    border-bottom: none;
}

.expand-btn {
    background: none;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
    padding: 3px 7px;
    cursor: pointer;
    color: #9CA3AF;
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s;
}

.expand-btn:hover { color: #6366F1; border-color: #6366F1; background: #EEF2FF; }

/* LIGHTBOX */
#lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.88);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
}

#lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 10px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
    object-fit: contain;
}

#lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    color: white;
    font-size: 1.6rem;
    font-weight: 300;
    cursor: pointer;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.15s;
}

#lightbox-close:hover { opacity: 1; }

.placeholder-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 240px;
    gap: 10px;
}

.placeholder-state p {
    font-size: 0.85rem;
    color: #9CA3AF;
    margin: 0;
}

/* SPINNER */
#spinner {
    display: none;
    text-align: center;
    padding: 60px 20px;
}

#spinner .spinner-border {
    width: 2.2rem;
    height: 2.2rem;
    color: #6366F1;
}

#spinner p {
    font-size: 0.85rem;
    color: #6B7280;
    margin-top: 14px;
    margin-bottom: 0;
}

/* RESULTS */
#results {
    font-size: 0.875rem;
    color: #374151;
    line-height: 1.7;
}

.result-block {
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid #F3F4F6;
}

.result-block:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.result-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #9CA3AF;
    margin-bottom: 5px;
}

/* FACES */
.face-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
    gap: 10px;
    margin-top: 8px;
}

.face-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.output-face-img {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid #E5E7EB;
    transition: border-color 0.15s;
}

.output-face-img:hover { border-color: #6366F1; }

/* ============================================
NER ENTITY COLOR CODING & STYLING
============================================ */

.ner-entity {
    position: relative;
    padding: 2px 4px;
    margin: 0 1px;
    border-radius: 4px;
    cursor: help;
    font-weight: 500;
    transition: all 0.2s ease;
    border-bottom: 2px solid transparent;
}

.ner-entity:hover {
    transform: translateY(-1px);
    filter: brightness(0.95);
}

/* Entity types */
.ner-person {
    background-color: #E3F2FD;
    color: #1565C0;
    border-bottom-color: #1976D2;
}

.ner-organization {
    background-color: #F3E5F5;
    color: #6A1B9A;
    border-bottom-color: #7B1FA2;
}

.ner-gpe {
    background-color: #A5D6A7;
    color: #1B5E20;
    border-bottom-color: #2E7D32;
}

.ner-location {
    background-color: #E0F2F1;
    color: #00695C;
    border-bottom-color: #00796B;
}

.ner-date {
    background-color: #FFF3E0;
    color: #E65100;
    border-bottom-color: #EF6C00;
}

.ner-event {
    background-color: #FCE4EC;
    color: #C2185B;
    border-bottom-color: #D81B60;
}

/* Dynasty entities */
.ner-dynasty {
    background-color: #FFF9C4;
    color: #F57F17;
    border-bottom-color: #F9A825;
}

/* Artifact entities */
.ner-artifact {
    background-color: #D7CCC8;
    color: #4E342E;
    border-bottom-color: #5D4037;
}

/* Work of Art entities */
.ner-work_of_art {
    background-color: #F1F8E9;
    color: #558B2F;
    border-bottom-color: #689F38;
}

/* Title entities */
.ner-title {
    background-color: #E1BEE7;
    color: #6A1B9A;
    border-bottom-color: #7B1FA2;
}

/* Concept entities */
.ner-concept {
    background-color: #B2DFDB;
    color: #00695C;
    border-bottom-color: #00796B;
}

/* Tooltip */
.ner-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #2C3E50;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.ner-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #2C3E50;
}

.ner-entity:hover .ner-tooltip {
    opacity: 1;
}

.ner-legend {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
    background: #F8F9FA;
    border-radius: 8px;
    margin-bottom: 20px;
    max-height: 120px;
    overflow-y: auto;
    align-items: center;
    align-content: flex-start;
}

.ner-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #495057;
    white-space: nowrap;
    flex-shrink: 0;
}

.ner-legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid;
    flex-shrink: 0;
}

.ner-legend::-webkit-scrollbar {
    height: 6px;
    width: 6px;
}

.ner-legend::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.ner-legend::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 3px;
}

.ner-legend::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* NER text container styling */
.ner-text-container {
    line-height: 1.8;
}

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

/* Tablet */
@media (max-width: 768px) {
    .container { padding-top: 24px; padding-bottom: 40px; }

    .demo-header { margin-bottom: 20px; }
    .demo-title { font-size: 1.2rem; }
    .demo-header-spacer { display: none; }

    .selector-grid { grid-template-columns: 1fr; }

    .sample-btn { flex: 1 1 calc(50% - 4px); }

    .panels-grid { grid-template-columns: 1fr; }

    .panel-body { min-height: 160px; padding: 14px; }
    .panel img.preview { max-height: 300px; }

    .tab-bar { overflow-x: auto; }

    .ner-text-container { font-size: 14px; line-height: 2.0; }
    .ner-legend { max-height: 160px; gap: 8px; padding: 10px 12px; }
    .ner-legend-item { font-size: 12px; }
    .ner-legend-color { width: 16px; height: 16px; }
    .ner-tooltip { font-size: 11px; padding: 6px 10px; }
}

/* Mobile */
@media (max-width: 480px) {
    .demo-title { font-size: 1.05rem; }
}

/* Small mobile */
@media (max-width: 480px) {
    .container { padding-top: 16px; }
    .ner-text-container { font-size: 13px; }
    .ner-entity { padding: 1px 3px; }
    .ner-legend { max-height: 200px; }
    .panel img.preview { max-height: 220px; }
}