:root {
    --bg-base: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-subtle: #F1F5F9;
    --border-color: #E2E8F0;
    --border-hover: #CBD5E1;
    --text-main: #0F172A;
    --text-muted: #64748B;
    --accent-blue: #0284C7;
    --accent-blue-hover: #0369A1;
    --color-normal: #059669;
    --color-normal-bg: #ECFDF5;
    --color-normal-border: #A7F3D0;
    --color-tb: #DC2626;
    --color-tb-bg: #FEF2F2;
    --color-tb-border: #FECACA;
    --color-referral: #D97706;
    --color-referral-bg: #FFFBEB;
    --color-referral-border: #FDE68A;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-base: #0B0F19;
    --bg-surface: #111827;
    --bg-subtle: #1F2937;
    --border-color: #374151;
    --border-hover: #4B5563;
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --color-normal-bg: #064E3B;
    --color-normal-border: #047857;
    --color-tb-bg: #7F1D1D;
    --color-tb-border: #B91C1C;
    --color-referral-bg: #78350F;
    --color-referral-border: #B45309;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.5;
    padding: 24px 16px;
}
.container { max-width: 1240px; margin: 0 auto; }

/* Navigation */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}
.brand-block { display: flex; align-items: center; gap: 12px; }
.brand-logo {
    width: 44px; height: 44px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}
.brand-title { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.brand-sub { font-size: 0.8rem; color: var(--text-muted); }
.nav-actions { display: flex; align-items: center; gap: 8px; }

.status-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
}
.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background-color: var(--color-normal);
}
.status-dot.connecting { background-color: var(--color-referral); animation: pulse 1.5s infinite; }
.status-dot.offline { background-color: var(--color-tb); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.btn-icon {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.15s;
}
.btn-icon:hover { background: var(--bg-subtle); }

/* Tabs */
.mode-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}
.mode-tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}
.mode-tab-btn:hover { color: var(--text-main); background: var(--bg-subtle); }
.mode-tab-btn.active {
    color: var(--accent-blue);
    background: var(--color-normal-bg);
    border: 1px solid var(--color-normal-border);
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
    align-items: start;
}
@media (max-width: 960px) {
    .bento-grid { grid-template-columns: 1fr; }
}

.panel-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-desc { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 16px; }

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 28px 16px;
    text-align: center;
    background: var(--bg-base);
    cursor: pointer;
    transition: all 0.2s;
}
.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--accent-blue);
    background: var(--bg-subtle);
}
.drop-icon {
    width: 44px; height: 44px;
    margin: 0 auto 12px;
    border-radius: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}
.upload-title { font-size: 0.9rem; font-weight: 600; }
.upload-desc { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

.file-status-box {
    display: none;
    margin-top: 14px;
    padding: 10px 12px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.8rem;
}
.file-status-row { display: flex; justify-content: space-between; align-items: center; }
.file-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 240px; }

.btn-primary {
    width: 100%;
    background: var(--accent-blue);
    color: #FFFFFF;
    border: none;
    padding: 11px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-blue-hover); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-camera {
    width: 100%;
    background: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 9px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-camera:hover { background: var(--bg-subtle); }

/* Benchmark Samples */
.samples-section { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border-color); }
.samples-title { font-size: 0.8rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; }
.samples-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
.sample-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.15s;
}
.sample-btn:hover { background: var(--bg-subtle); border-color: var(--accent-blue); }

/* Right Panel: Results & Viewer */
.empty-state-box {
    padding: 80px 24px;
    text-align: center;
    color: var(--text-muted);
}
.empty-state-icon {
    width: 64px; height: 64px;
    margin: 0 auto 16px;
    opacity: 0.4;
    color: var(--text-muted);
}

.results-container { display: none; }

/* Idiograph / Action Banner */
.idiograph-banner {
    padding: 18px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    border: 1px solid transparent;
}
.idiograph-banner.action-normal {
    background: var(--color-normal-bg);
    border-color: var(--color-normal-border);
    color: var(--color-normal);
}
.idiograph-banner.action-tb {
    background: var(--color-tb-bg);
    border-color: var(--color-tb-border);
    color: var(--color-tb);
}
.idiograph-banner.action-referral {
    background: var(--color-referral-bg);
    border-color: var(--color-referral-border);
    color: var(--color-referral);
}

.action-icon-box {
    width: 44px; height: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}
.idiograph-banner.action-normal .action-icon-box {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.35);
    color: var(--color-normal);
}
.idiograph-banner.action-tb .action-icon-box {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.35);
    color: var(--color-tb);
}
.idiograph-banner.action-referral .action-icon-box {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.35);
    color: var(--color-referral);
}
.action-body { flex: 1; }
.action-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
    background: rgba(0, 0, 0, 0.06);
}
.action-title { font-size: 1.1rem; font-weight: 800; line-height: 1.3; }
.action-desc { font-size: 0.85rem; margin-top: 4px; opacity: 0.9; color: var(--text-main); }

/* Viewer Section */
.viewer-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}
.viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.viewer-title-row { display: flex; align-items: center; gap: 8px; }
.viewer-title { font-size: 0.9rem; font-weight: 700; }
.viewer-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 6px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
}
.mode-toggle-group { display: flex; gap: 4px; }
.btn-toggle {
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-toggle.active {
    background: var(--accent-blue);
    color: #FFFFFF;
    border-color: var(--accent-blue);
}

/* Bulletproof Clip-Path Image Slider */
.slider-viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-height: 440px;
    background: #050811;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    user-select: none;
}
.slider-img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: contain;
    pointer-events: none;
}
#img-heat {
    clip-path: inset(0 50% 0 0);
    z-index: 2;
}
#img-base {
    z-index: 1;
}
.slider-bar-line {
    position: absolute;
    top: 0; bottom: 0;
    left: 50%;
    width: 2px;
    background: var(--accent-blue);
    cursor: ew-resize;
    pointer-events: none;
    z-index: 10;
}
.slider-handle {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 28px; height: 28px;
    background: #FFFFFF;
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    box-shadow: var(--shadow-md);
    pointer-events: none;
}
.slider-input-range {
    width: 100%;
    margin-top: 14px;
    cursor: ew-resize;
}
.slider-legend-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 500;
}

/* Probabilities & Quantiles */
.prob-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
@media (max-width: 640px) {
    .prob-section { grid-template-columns: 1fr; }
}
.prob-card {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px 16px;
}
.prob-header-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.prob-title { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
.prob-num { font-size: 1.4rem; font-weight: 800; font-family: var(--font-mono); }
.prob-bar-track {
    height: 8px;
    background: var(--border-color);
    border-radius: 9999px;
    overflow: hidden;
    margin-bottom: 8px;
}
.prob-bar-fill { height: 100%; border-radius: 9999px; transition: width 0.4s ease; }
.prob-bar-fill.tb { background: var(--color-tb); }
.prob-bar-fill.normal { background: var(--color-normal); }
.prob-subtext { font-size: 0.75rem; color: var(--text-muted); }

/* Metadata Matrix */
.meta-matrix {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
@media (max-width: 768px) {
    .meta-matrix { grid-template-columns: repeat(2, 1fr); }
}
.meta-cell {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
}
.meta-label { font-size: 0.7rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }
.meta-value { font-size: 0.95rem; font-weight: 700; font-family: var(--font-mono); margin-top: 2px; }

/* Batch Mode Layout */
.batch-section { display: none; }
.batch-kpi-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
@media (max-width: 768px) {
    .batch-kpi-bar { grid-template-columns: repeat(2, 1fr); }
}
.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px 16px;
}
.kpi-label { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }
.kpi-val { font-size: 1.6rem; font-weight: 800; font-family: var(--font-mono); margin-top: 4px; }
.kpi-val.tb { color: var(--color-tb); }
.kpi-val.normal { color: var(--color-normal); }
.kpi-val.ref { color: var(--color-referral); }

.batch-table-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
}
.batch-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}
.batch-table th {
    background: var(--bg-subtle);
    padding: 10px 14px;
    font-weight: 700;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.7rem;
}
.batch-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    font-family: var(--font-mono);
}
.batch-table tr:last-child td { border-bottom: none; }

/* Disclaimer Modal */
.modal-backdrop {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.modal-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    max-width: 620px;
    width: 100%;
    padding: 24px;
    box-shadow: var(--shadow-lg);
}
.modal-header-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.modal-icon { color: var(--color-referral); }
.modal-title { font-size: 1.15rem; font-weight: 800; }
.modal-body {
    font-size: 0.85rem;
    color: var(--text-main);
    line-height: 1.6;
    max-height: 50vh;
    overflow-y: auto;
    padding-right: 8px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    margin-bottom: 16px;
}
.modal-body ul { margin-left: 20px; margin-top: 8px; }
.modal-body li { margin-bottom: 6px; }
.modal-agree-row { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.modal-agree-row input { width: 16px; height: 16px; cursor: pointer; }
.modal-agree-row label { font-size: 0.85rem; font-weight: 600; cursor: pointer; }
.btn-modal-accept {
    width: 100%;
    background: var(--accent-blue);
    color: #FFFFFF;
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
}
.btn-modal-accept:disabled { opacity: 0.5; cursor: not-allowed; }

/* Progressive Disclosure: Technical Audit Accordion */
.tech-audit-details {
    margin-top: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    transition: all 0.2s ease;
}
.tech-audit-details[open] {
    background: var(--bg-subtle);
    border-color: var(--accent-blue);
}
.tech-audit-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    user-select: none;
    list-style: none;
}
.tech-audit-summary::-webkit-details-marker {
    display: none;
}
.tech-audit-summary:hover {
    color: var(--text-main);
}
.tech-audit-icon {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}
.tech-audit-details[open] .tech-audit-icon {
    transform: rotate(45deg);
}