@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;0,9..40,800&family=DM+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ═══════════════════════════════════════════════════════════
   THEME TOKENS — light is default, dark via [data-theme="dark"]
═══════════════════════════════════════════════════════════ */
:root {
    /* Brand (unchanged in both themes) */
    --primary:          #2f27ce;
    --primary-light:    rgba(47, 39, 206, 0.10);
    --primary-muted:    rgba(47, 39, 206, 0.06);
    --secondary:        #366b00;
    --secondary-light:  #eef5e9;
    --secondary-muted:  rgba(54, 107, 0, 0.08);
    --burnt-yellow:     #cc9900;
    --burnt-yellow-t:   rgba(204, 153, 0, 0.15);
    --danger:           #c0392b;

    /* Light mode surfaces */
    --bg:               #cfd8dc;
    --surface:          #f2f2f2;
    --surface-raised:   #ffffff;
    --surface-sunken:   #e8ecee;
    --border:           #d0d5d8;
    --border-strong:    #b0b8bc;

    /* Light mode chrome (title bar / ribbon) */
    --chrome:           #e4e8eb;
    --chrome-border:    #cdd2d5;
    --chrome-hover:     rgba(0,0,0,0.06);

    /* Light mode text */
    --text:             #1a1a1a;
    --text-secondary:   #555;
    --text-muted:       #888;
    --text-dim:         #aaa;

    /* Shared */
    --radius:           8px;
    --radius-sm:        4px;
    --shadow-card:      0 8px 32px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.07);
    --shadow-panel:     2px 0 8px rgba(0,0,0,0.06);
    --transition:       0.18s ease;
}

[data-theme="dark"] {
    --bg:               #191d24;
    --surface:          #21252e;
    --surface-raised:   #2b303c;
    --surface-sunken:   #161920;
    --border:           #353b48;
    --border-strong:    #454d5e;

    --chrome:           #1c2029;
    --chrome-border:    #2e3340;
    --chrome-hover:     rgba(255,255,255,0.06);

    --text:             #e8e8e8;
    --text-secondary:   #bbb;
    --text-muted:       #777;
    --text-dim:         #444;

    /* Brighter primary for dark mode — legible on dark surfaces */
    --primary:          #7b8cff;
    --primary-light:    rgba(123, 140, 255, 0.22);
    --primary-muted:    rgba(123, 140, 255, 0.12);
    --secondary-light:  rgba(54, 107, 0, 0.18);
    --secondary-muted:  rgba(54, 107, 0, 0.10);
    --burnt-yellow-t:   rgba(204, 153, 0, 0.20);
    --shadow-card:      0 12px 48px rgba(0,0,0,0.45), 0 2px 8px rgba(0,0,0,0.3);
}

/* ═══════════════════════════════════════════════════════════
   BASE
═══════════════════════════════════════════════════════════ */
body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    transition: background var(--transition), color var(--transition);
}

/* ═══════════════════════════════════════════════════════════
   TITLE BAR
═══════════════════════════════════════════════════════════ */
.title-bar {
    height: 36px;
    background: var(--chrome);
    border-bottom: 1px solid var(--chrome-border);
    display: flex;
    align-items: center;
    padding: 0 14px;
    gap: 8px;
    flex-shrink: 0;
    user-select: none;
    transition: background var(--transition), border-color var(--transition);
}
.tl { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.tl-red    { background: #ff5f57; }
.tl-yellow { background: #ffbd2e; }
.tl-green  { background: #28c840; }
.title-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin: 0 auto;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   RIBBON TOOLBAR
═══════════════════════════════════════════════════════════ */
.ribbon {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: stretch;
    padding: 0 10px;
    height: 50px;
    flex-shrink: 0;
    gap: 2px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    transition: background var(--transition), border-color var(--transition);
}
.ribbon-logo {
    display: flex;
    align-items: center;
    padding: 0 16px 0 6px;
    border-right: 1px solid var(--border);
    margin-right: 8px;
    gap: 1px;
    flex-shrink: 0;
    transition: opacity 0.15s;
}
.ribbon-logo:hover { opacity: 0.75; }
.logo-omics { color: var(--primary);   font-weight: 300; font-size: 1.2rem; letter-spacing: -0.01em; }
.logo-plot  { color: var(--secondary); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }

.ribbon-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5px 13px;
    border: none;
    background: transparent;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.58rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    cursor: pointer;
    border-radius: var(--radius-sm);
    gap: 5px;
    transition: background var(--transition), color var(--transition);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}
.ribbon-btn:hover  { background: var(--chrome-hover); color: var(--text); }
.ribbon-btn.active {
    background: var(--primary-muted);
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    font-weight: 700;
}
/* loaded = visited but not current page — same primary family, reduced opacity */
.ribbon-btn.loaded {
    color: var(--primary);
    background: transparent;
    border-bottom: 2px solid transparent;
    opacity: 0.45;
    pointer-events: auto;
    cursor: pointer;
}
.ribbon-btn.loaded:hover {
    opacity: 0.85;
    background: var(--primary-muted);
}
/* dark mode: active uses green, loaded is transparent green */
[data-theme="dark"] .ribbon-btn.active {
    color: #7ec850;
    background: rgba(126,200,80,0.12);
    border-bottom-color: #7ec850;
}
[data-theme="dark"] .ribbon-btn.loaded {
    color: #7ec850;
    background: transparent;
    border-bottom-color: transparent;
    opacity: 0.45;
}
[data-theme="dark"] .ribbon-btn.loaded:hover {
    background: rgba(126,200,80,0.10);
    opacity: 0.85;
}
.ribbon-btn.dim    { opacity: 0.3; cursor: not-allowed; pointer-events: none; }
.ribbon-btn svg    { flex-shrink: 0; }
.ribbon-divider    { width: 1px; background: var(--border); margin: 10px 5px; flex-shrink: 0; }
.ribbon-right      { margin-left: auto; display: flex; align-items: center; gap: 4px; }

/* Theme toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.65rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.theme-toggle:hover { background: var(--chrome-hover); color: var(--text); border-color: var(--border-strong); }
.toggle-track {
    width: 28px; height: 16px;
    background: var(--border-strong);
    border-radius: 8px;
    position: relative;
    transition: background var(--transition);
    flex-shrink: 0;
}
[data-theme="dark"] .toggle-track { background: var(--primary); }
.toggle-thumb {
    position: absolute;
    top: 2px; left: 2px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: white;
    transition: transform var(--transition);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
[data-theme="dark"] .toggle-thumb { transform: translateX(12px); }

/* ═══════════════════════════════════════════════════════════
   WORKSPACE (sidebar + canvas)
═══════════════════════════════════════════════════════════ */
.workspace {
    display: grid;
    grid-template-columns: 210px 1fr;
    overflow: hidden;
    flex: 1;
}

/* ═══════════════════════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════════════════════ */
.sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    box-shadow: var(--shadow-panel);
    transition: background var(--transition), border-color var(--transition);
}
.sb-section {
    padding: 14px 14px;
    border-bottom: 1px solid var(--border);
}
.sb-head {
    font-size: 0.62rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 8px;
}
.sb-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.76rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}
.sb-item:hover         { background: var(--chrome-hover); color: var(--text); }
.sb-item.active        { background: var(--primary-muted); color: var(--primary); font-weight: 600; }
.sb-item.dim           { opacity: 0.4; cursor: default; pointer-events: none; }
.sb-item svg           { flex-shrink: 0; opacity: 0.7; }
.sb-item:hover svg,
.sb-item.active svg    { opacity: 1; }
.pill {
    margin-left: auto;
    font-size: 0.52rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    white-space: nowrap;
}
.pill-blue  { background: var(--primary-light);  color: var(--primary);   border: 1px solid rgba(47,39,206,0.25); }
.pill-green { background: var(--secondary-light); color: var(--secondary); border: 1px solid rgba(54,107,0,0.3); }
.pill-gold  { background: var(--burnt-yellow-t);  color: var(--burnt-yellow); border: 1px solid rgba(204,153,0,0.3); }

/* ═══════════════════════════════════════════════════════════
   CANVAS / PLOT AREA
═══════════════════════════════════════════════════════════ */
.canvas {
    background: #f0f2f4;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    position: relative;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 32px 24px;
    transition: background var(--transition);
}

.canvas::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, var(--primary-muted) 0%, transparent 68%);
    pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════
   UPLOAD CARD (index.html)
═══════════════════════════════════════════════════════════ */
.upload-card {
    position: relative;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 480px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
    animation: cardIn 0.36s cubic-bezier(0.22, 1, 0.36, 1);
    transition: background var(--transition), border-color var(--transition);
}
@keyframes cardIn {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0)    scale(1); }
}
.card-topbar {
    background: var(--surface-sunken);
    border-bottom: 1.5px solid var(--border-strong);
    padding: 11px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background var(--transition);
}
.topbar-dot   { width: 7px; height: 7px; border-radius: 50%; background: var(--burnt-yellow); flex-shrink: 0; }
.topbar-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.topbar-step  { margin-left: auto; font-size: 0.6rem; font-family: 'DM Mono', monospace; color: var(--text-dim); }
.card-body    { padding: 26px 26px 22px; }
.card-footer  {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 11px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background var(--transition);
}
.footer-hint      { font-size: 0.63rem; color: var(--text-muted); }
.footer-hint code { font-family: 'DM Mono', monospace; font-size: 0.6rem; color: var(--text-secondary); }

/* Drop zone */
.drop-zone {
    border: 1.5px dashed var(--border-strong);
    border-radius: var(--radius);
    padding: 44px 20px;
    text-align: center;
    cursor: pointer;
    background: var(--surface-sunken);
    display: block;
    transition: border-color var(--transition), background var(--transition);
}
.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-muted);
}
.drop-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 12px;
    transition: transform 0.2s;
    filter: grayscale(0.4);
}
.drop-zone:hover .drop-icon,
.drop-zone.drag-over .drop-icon { transform: translateY(-4px); filter: none; }
.drop-title { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 5px; }
.drop-sub   { font-size: 0.72rem; color: var(--text-muted); }
.drop-tags  { display: flex; justify-content: center; gap: 6px; margin-top: 14px; }
.dtag {
    font-size: 0.58rem;
    font-family: 'DM Mono', monospace;
    font-weight: 500;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    color: var(--text-muted);
    background: var(--surface-raised);
}

#file-error    { font-size: 0.72rem; color: var(--danger); margin-top: 10px; text-align: center; display: none; }
#upload-status { display: none; margin-top: 14px; }
.status-bar {
    background: var(--primary-muted);
    border: 1px solid rgba(47,39,206,0.2);
    border-radius: 6px;
    padding: 10px 14px;
    display: flex; align-items: center; gap: 10px;
    font-size: 0.78rem; color: var(--primary);
}
.spinner {
    width: 14px; height: 14px;
    border: 2px solid rgba(47,39,206,0.15);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite; flex-shrink: 0;
}
[data-theme="dark"] .status-bar { background: rgba(126,200,80,0.1); border-color: rgba(126,200,80,0.2); color: #7ec850; }
[data-theme="dark"] .spinner { border-color: rgba(126,200,80,0.15); border-top-color: #7ec850; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════
   MAPPING CARD (map_columns.html)
═══════════════════════════════════════════════════════════ */
.mapping-card {
    background: var(--surface-raised);
    border: 1.5px solid var(--border-strong);
    border-radius: 10px;
    width: 460px;
    max-width: 100%;
    box-shadow: 0 4px 24px rgba(0,0,0,0.13), 0 1.5px 6px rgba(0,0,0,0.09);
    overflow: visible;
    animation: cardIn 0.36s cubic-bezier(0.22, 1, 0.36, 1);
    transition: background var(--transition), border-color var(--transition);
}
.mapping-card .card-body { padding: 24px 26px 20px; }

.field-group  { margin-bottom: 14px; }
.field-label  { display: block; font-size: 0.72rem; font-weight: 700; color: var(--text-secondary); margin-bottom: 5px; letter-spacing: 0.02em; }

.clean-option {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
    border: 1px solid transparent;
}
.clean-option:hover { background: var(--primary-muted); border-color: rgba(47,39,206,0.2); }
.clean-option input[type="checkbox"] { accent-color: var(--primary); cursor: pointer; flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════
   DASHBOARD PANELS — shared panel style (results.html)
═══════════════════════════════════════════════════════════ */
.panel {
    background: var(--surface);
    padding: 16px 14px;
    border-right: 1px solid var(--border);
    overflow-y: auto;
    overflow-x: hidden;
    min-width: 0;
    box-sizing: border-box;
    transition: background var(--transition), border-color var(--transition);
}
.right-panel { border-right: none; border-left: 1px solid var(--border); }

.panel-logo { margin-bottom: 16px; }
.section-header {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    margin-top: 16px;
}
.section-header:first-child { margin-top: 0; }

/* Sub-header — bold group label inside section cards, no divider line */
.sub-header {
    font-size: 0.63rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 12px 0 5px;
    display: block;
}
.sub-header:first-child { margin-top: 4px; }
[data-theme="dark"] .sub-header { color: #7ec850; }
.section-card {
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2px;
}

/* Input rows */
.input-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 7px;
    gap: 8px;
}
.input-row label {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    width: 40%;
    flex-shrink: 0;
}
[data-theme="dark"] .input-row label { color: #e8e8e8; }
.input-row input[type="text"],
.input-row input[type="number"],
.input-row select {
    width: 56%;
}
.input-row input[type="color"] {
    width: 56%;
    height: 28px;
    padding: 2px 3px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    cursor: pointer;
}
.input-row input[type="checkbox"] {
    width: auto;
    cursor: pointer;
    accent-color: var(--primary);
}

/* All text/number/select inputs */
input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 7px 9px;
    border: 1.5px solid var(--border-strong, #c8cad4);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-family: 'DM Sans', sans-serif;
    background: var(--surface-raised);
    color: var(--text);
    transition: border-color var(--transition), background var(--transition);
    outline: none;
}
input[type="text"]:focus,
input[type="number"]:focus,
select:focus { border-color: var(--primary); background: var(--surface-raised); box-shadow: 0 0 0 3px var(--primary-light); outline: none; }

input[type="range"]:focus { outline: none; box-shadow: none; }

textarea:focus { border-color: var(--primary); background: var(--surface-raised); box-shadow: 0 0 0 3px var(--primary-light); outline: none; }

/* Sliders */
.slider-container { display: flex; align-items: center; width: 56%; gap: 7px; }
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    flex-grow: 1;
    height: 4px;
    background: linear-gradient(to right, #89CFF0, var(--primary));
    border-radius: 10px;
    cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 13px; width: 13px;
    border-radius: 50%;
    background: var(--surface-raised);
    border: 2px solid var(--primary);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.slider-val {
    font-size: 0.62rem;
    font-weight: 700;
    font-family: 'DM Mono', monospace;
    min-width: 18px;
    text-align: right;
    color: var(--text-secondary);
}

/* Stats card */
.analysis-card {
    background: var(--secondary-light);
    border: 1px solid rgba(54,107,0,0.2);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    transition: background var(--transition);
}
.stat-line {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    margin-bottom: 5px;
    color: var(--text-secondary);
}
.stat-line:last-child { margin-bottom: 0; }
.stat-line span:last-child { font-family: 'DM Mono', monospace; font-weight: 700; color: var(--text); }
.tag-up   { color: var(--burnt-yellow) !important; }
.tag-down { color: var(--primary)      !important; }

/* Gene table */
.gene-table { width: 100%; border-collapse: collapse; font-size: 0.68rem; margin-top: 6px; }
.gene-table th {
    background: var(--primary-muted);
    color: var(--primary);
    font-weight: 700;
    padding: 5px 7px;
    text-align: left;
    border-bottom: 2px solid rgba(47,39,206,0.2);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.gene-table td { padding: 4px 7px; border-bottom: 1px solid var(--border); }
.gene-table tr:hover td { background: var(--primary-muted); }
.gene-table td:nth-child(2),
.gene-table td:nth-child(3) { font-family: 'DM Mono', monospace; }

/* Buttons */
.btn-apply {
    background: var(--burnt-yellow-t);
    border: 1px solid rgba(204,153,0,0.4);
    width: 100%;
    padding: 9px;
    font-weight: 700;
    font-size: 0.78rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    margin-bottom: 7px;
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    transition: background var(--transition);
}
.btn-apply:hover { background: rgba(204,153,0,0.28); }

.btn-download {
    background: var(--burnt-yellow);
    color: white;
    border: 1px solid #a07800;
    width: 100%;
    padding: 9px;
    font-weight: 700;
    font-size: 0.78rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    transition: background var(--transition);
}
.btn-download:hover { background: #b38600; }

.btn-submit {
    background: var(--primary);
    color: white;
    border: none;
    width: 100%;
    padding: 11px;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    transition: background var(--transition);
    letter-spacing: 0.02em;
}
.btn-submit:hover { background: #1e19a0; }

/* Compliance warning */
.compliance-warn {
    font-size: 0.63rem;
    color: var(--danger);
    margin-top: 5px;
    display: none;
    padding: 5px 8px;
    background: rgba(192,57,43,0.08);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--danger);
}
.compliance-warn.visible { display: block; }

.plot-frame {
    background: var(--surface-raised);
    padding: 16px;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    border-top: none;
    width: 100%;
    min-width: 0;
    flex-shrink: 0;
    overflow: hidden;
    box-sizing: border-box;
    transition: background var(--transition), border-color var(--transition);
}
.plot-loading { pointer-events: none; }
.plot-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(var(--bg-rgb, 255,255,255), 0.55);
  border-radius: inherit;
  z-index: 10;
  transition: opacity 0.15s;
}
/* plot-div sized explicitly by JS via getPlotDims() */
#plot-div { width: 100%; min-height: 300px; }

/* Bottom status bar */
.statusbar {
    height: 24px;
    background: var(--chrome);
    border-top: 1px solid var(--chrome-border);
    display: flex;
    align-items: center;
    padding: 0 14px;
    gap: 16px;
    flex-shrink: 0;
    transition: background var(--transition);
}
.sb-stat { font-size: 0.6rem; color: var(--text-dim); display: flex; align-items: center; gap: 5px; }
.sb-dot  { width: 6px; height: 6px; border-radius: 50%; background: var(--secondary); }

/* Utility */
.mt-8  { margin-top: 8px; }
.mt-14 { margin-top: 14px; }
.divider { height: 1px; background: var(--border); margin: 12px 0; }
.text-muted { color: var(--text-muted); font-size: 0.75rem; }

/* Full page layout helper */
.app-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════
   DARK MODE CONTRAST IMPROVEMENTS
═══════════════════════════════════════════════════════════ */
[data-theme="dark"] {
    --text:           #f0f0f0;
    --text-secondary: #d0d0d0;
    --text-muted:     #999;
    --text-dim:       #555;
}
[data-theme="dark"] .section-header      { color: #7ec850; } /* green in dark */
[data-theme="dark"] .sb-head             { color: #7ec850; }
[data-theme="dark"] .input-row label     { color: #bbb; }
[data-theme="dark"] .panel-logo .logo-omics { color: #8b8fff; }
[data-theme="dark"] .panel-logo .logo-plot  { color: #7ec850; }
[data-theme="dark"] .logo-omics          { color: #8b8fff; }
[data-theme="dark"] .logo-plot           { color: #7ec850; }
[data-theme="dark"] .stat-line           { color: #d0d0d0; }
[data-theme="dark"] .stat-line span:last-child { color: #f0f0f0; }
[data-theme="dark"] .tag-up              { color: #ffc53d !important; }
[data-theme="dark"] .tag-down            { color: #8b8fff !important; }
[data-theme="dark"] .gene-table th       { color: #8b8fff; background: rgba(139,143,255,0.12); border-bottom-color: rgba(139,143,255,0.3); }
[data-theme="dark"] .gene-table td       { border-bottom-color: #333; color: #d0d0d0; }
[data-theme="dark"] .gene-table tr:hover td { background: rgba(139,143,255,0.08); }
[data-theme="dark"] .analysis-card       { background: rgba(54,107,0,0.2); border-color: rgba(126,200,80,0.25); }
[data-theme="dark"] .title-label         { color: #888; }
[data-theme="dark"] .sb-stat             { color: #777; }
[data-theme="dark"] .slider-val          { color: #bbb; }
[data-theme="dark"] .ribbon-btn          { color: #aaa; }
[data-theme="dark"] .ribbon-btn:hover    { color: #f0f0f0; }
/* dark ribbon active/loaded handled in main ribbon-btn.active block above */
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] select               { background: #161920; color: #e8e8e8; border-color: #444; }
[data-theme="dark"] .topbar-title        { color: #aaa; }
[data-theme="dark"] .topbar-step         { color: #666; }
[data-theme="dark"] .footer-hint         { color: #555; }
[data-theme="dark"] .sb-item             { color: #aaa; }
[data-theme="dark"] .sb-item:hover       { color: #f0f0f0; }
[data-theme="dark"] .sb-item.active      { color: #7ec850; background: rgba(54,107,0,0.18); }
[data-theme="dark"] .drop-title          { color: #e8e8e8; }
[data-theme="dark"] .btn-apply           { color: #e8e8e8; border-color: rgba(204,153,0,0.5); }
[data-theme="dark"] .theme-toggle        { color: #aaa; border-color: #444; }
[data-theme="dark"] .theme-toggle:hover  { color: #f0f0f0; }

/* ═══════════════════════════════════════════════════════════
   EXPORT BAR
═══════════════════════════════════════════════════════════ */
.export-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 0 10px 10px;
    border-top: none;
    margin-top: -1px;
    flex-shrink: 0;
    transition: background var(--transition);
}
.export-label {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-right: 4px;
}
.btn-export {
    padding: 5px 12px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1px solid var(--secondary);
    background: var(--secondary);
    color: white;
    letter-spacing: 0.04em;
    transition: background var(--transition), transform 0.1s;
}
.btn-export:hover    { background: #2a5500; transform: translateY(-1px); }
.btn-export:active   { transform: translateY(0); }
.btn-export-tiff     { background: transparent; color: var(--secondary); }
.btn-export-tiff:hover { background: var(--secondary-muted); }

/* ═══════════════════════════════════════════════════════════
   TABLE SORT SELECT
═══════════════════════════════════════════════════════════ */
.table-sort-select {
    font-size: 0.58rem;
    padding: 2px 5px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    color: var(--text-muted);
    cursor: pointer;
    width: auto;
}

/* ═══════════════════════════════════════════════════════════
   RESTORE DEFAULTS BUTTON
═══════════════════════════════════════════════════════════ */
.btn-restore {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.63rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn-restore:hover {
    background: var(--secondary-muted);
    color: var(--secondary);
    border-color: rgba(54,107,0,0.35);
}
[data-theme="dark"] .btn-restore { color: #888; border-color: #444; }
[data-theme="dark"] .btn-restore:hover { color: #7ec850; border-color: rgba(126,200,80,0.4); }

/* ═══════════════════════════════════════════════════════════
   PLOT FRAME — always light, never goes dark
═══════════════════════════════════════════════════════════ */
.plot-frame-light {
    background: #ffffff !important;
    border-color: #d0d5d8 !important;
}
[data-theme="dark"] .plot-frame-light {
    background: #ffffff !important;
    border-color: #d0d5d8 !important;
    box-shadow: 0 12px 48px rgba(0,0,0,0.6) !important;
}
[data-theme="dark"] .plot-area {
    background: #1a1a1a;
    background-image:
        linear-gradient(#2a2a2a 1px, transparent 1px),
        linear-gradient(90deg, #2a2a2a 1px, transparent 1px);
    background-size: 26px 26px;
}
[data-theme="dark"] .export-bar {
    background: #1e1e1e !important;
    border-color: #333 !important;
}

/* ═══════════════════════════════════════════════════════════
   PLOT THEME SWATCHES
═══════════════════════════════════════════════════════════ */
.theme-swatches {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.swatch {
    display: flex;
    gap: 3px;
    padding: 4px 6px;
    border: 2px solid var(--border);
    border-radius: 6px;
    background: var(--surface-raised);
    cursor: pointer;
    transition: border-color var(--transition), transform 0.1s;
}
.swatch span {
    display: block;
    width: 16px; height: 16px;
    border-radius: 3px;
}
.swatch:hover     { border-color: var(--border-strong); transform: translateY(-1px); }
.swatch.active    { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }

/* ═══════════════════════════════════════════════════════════
   DOWNLOAD BUTTONS — synced to site tone
═══════════════════════════════════════════════════════════ */
.btn-dl-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 100%;
    padding: 9px;
    margin-bottom: 7px;
    font-weight: 600;
    font-size: 0.76rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    background: var(--surface-sunken);
    border: 1px solid var(--border-strong);
    color: var(--text-secondary);
    transition: background var(--transition), color var(--transition);
}
.btn-dl-secondary:hover { background: var(--primary-muted); color: var(--primary); border-color: rgba(47,39,206,0.3); }

.btn-dl-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 100%;
    padding: 9px;
    font-weight: 700;
    font-size: 0.76rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    background: var(--primary);
    border: 1px solid #1e19a0;
    color: white;
    transition: background var(--transition);
}
.btn-dl-primary:hover { background: #1e19a0; }

.btn-dl-secondary-filled {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 100%;
    padding: 9px;
    font-weight: 700;
    font-size: 0.76rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    background: var(--secondary, #366b00);
    border: 1px solid #2a5200;
    color: white;
    transition: background var(--transition);
}
.btn-dl-secondary-filled:hover { background: #2a5200; }
[data-theme="dark"] .btn-dl-secondary-filled { background: #3a7a00; border-color: #2a5a00; }

[data-theme="dark"] .btn-dl-secondary { background: #161920; border-color: #444; color: #aaa; }
[data-theme="dark"] .btn-dl-secondary:hover { background: rgba(47,39,206,0.15); color: #8b8fff; }

/* ═══════════════════════════════════════════════════════════
   LOG BASE SELECTOR — map_columns.html
═══════════════════════════════════════════════════════════ */
.log-base-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    margin-top: 6px;
}
.log-base-option {
    cursor: pointer;
    display: flex;
    flex-direction: column;
}
.log-base-option input[type="radio"] {
    display: none;
}
.log-base-card {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 10px 10px 8px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-raised);
    transition: border-color var(--transition), background var(--transition);
    cursor: pointer;
    height: 100%;
    box-sizing: border-box;
}
.log-base-option input[type="radio"]:checked + .log-base-card {
    border-color: var(--primary);
    background: var(--primary-muted);
}
.log-base-card:hover { border-color: var(--border-strong); }
.log-base-desc {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.log-base-note {
    font-size: 0.62rem;
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.4;
}

/* Log badges */
.log-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 800;
    font-family: 'DM Mono', monospace;
    padding: 2px 7px;
    border-radius: 4px;
    letter-spacing: 0.04em;
    margin-bottom: 2px;
}
.log-badge-blue  { background: rgba(47,39,206,0.12);  color: #2f27ce; }
.log-badge-green { background: rgba(54,107,0,0.12);   color: #366b00; }
.log-badge-gold  { background: rgba(204,153,0,0.15);  color: #996600; }
.log-badge-red   { background: rgba(220,20,60,0.12);  color: #b01030; }

[data-theme="dark"] .log-badge-blue  { background: rgba(139,143,255,0.15); color: #8b8fff; }
[data-theme="dark"] .log-badge-green { background: rgba(126,200,80,0.15);  color: #7ec850; }
[data-theme="dark"] .log-badge-gold  { background: rgba(255,197,61,0.15);  color: #ffc53d; }
[data-theme="dark"] .log-badge-red   { background: rgba(255,100,100,0.15); color: #ff6464; }

/* Sidebar log guide */
.log-guide-item {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-bottom: 10px;
    font-size: 0.67rem;
    color: var(--text-muted);
    line-height: 1.5;
}
.log-guide-item .log-badge { flex-shrink: 0; margin-top: 1px; }

/* ═══════════════════════════════════════════════════════════
   EXPORT BAR — Fix 2
═══════════════════════════════════════════════════════════ */
.export-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 0 10px 10px;
    border-top: none;
    margin-top: -1px;
    flex-shrink: 0;
    flex-wrap: wrap;
    transition: background var(--transition);
}
.export-dims-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.export-dim-field {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.export-dim-label {
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.export-dim-input {
    width: 72px;
    padding: 4px 6px;
    font-size: 0.68rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    color: var(--text);
    font-family: 'DM Mono', monospace;
}
.export-dim-input:focus { outline: none; border-color: var(--primary); }
.export-px-preview {
    font-size: 0.6rem;
    font-family: 'DM Mono', monospace;
    color: var(--text-muted);
    background: var(--surface-sunken);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    white-space: nowrap;
    align-self: flex-end;
}
.export-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 2px;
    flex-shrink: 0;
}
.export-label {
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    flex-shrink: 0;
}
.btn-export {
    padding: 5px 11px;
    font-size: 0.66rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1px solid var(--secondary);
    background: var(--secondary);
    color: white;
    letter-spacing: 0.04em;
    transition: background var(--transition), transform 0.1s;
    flex-shrink: 0;
}
.btn-export:hover  { background: #2a5500; transform: translateY(-1px); }
.btn-export:active { transform: translateY(0); }
.btn-export-tiff   { background: transparent; color: var(--secondary); }
.btn-export-tiff:hover { background: var(--secondary-muted); }

/* Figure Builder button */
.btn-figure-builder {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 13px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--secondary);
    background: var(--secondary-muted);
    color: var(--secondary);
    letter-spacing: 0.02em;
    transition: background var(--transition), color var(--transition), transform 0.1s;
    flex-shrink: 0;
    margin-left: auto;
}
.btn-figure-builder:hover  { background: var(--secondary); color: white; transform: translateY(-1px); }
.btn-figure-builder:active { transform: translateY(0); }
.btn-figure-builder:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

[data-theme="dark"] .export-bar          { background: #1e1e1e; border-color: #333; }
[data-theme="dark"] .export-dim-input    { background: #161920; border-color: #444; color: #e0e0e0; }
[data-theme="dark"] .export-px-preview  { background: #161616; border-color: #333; color: #777; }
[data-theme="dark"] .export-divider     { background: #333; }
[data-theme="dark"] .btn-export-tiff    { color: #7ec850; border-color: #7ec850; }
[data-theme="dark"] .btn-export-tiff:hover { background: rgba(126,200,80,0.12); }
[data-theme="dark"] .btn-figure-builder { border-color: #7ec850; color: #7ec850; background: rgba(126,200,80,0.08); }
[data-theme="dark"] .btn-figure-builder:hover { background: #7ec850; color: #1a1a1a; }

/* ═══════════════════════════════════════════════════════════
   EXPORT BAR — stacked two-row layout for small screens
═══════════════════════════════════════════════════════════ */
.export-bar-stacked {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
}
.export-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    flex-wrap: wrap;
}
.export-row-top {
    border-bottom: 1px solid var(--border);
    background: var(--surface-sunken);
}
.export-row-bottom { flex-wrap: wrap; }

/* Open Figure Builder button */
.btn-open-fb {
    display: none;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    font-size: 0.66rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--secondary);
    background: var(--secondary);
    color: white;
    transition: background var(--transition);
    white-space: nowrap;
}
.btn-open-fb:hover { background: #2a5500; }
[data-theme="dark"] .btn-open-fb { border-color: #7ec850; background: #7ec850; color: #1a1a1a; }
[data-theme="dark"] .btn-open-fb:hover { background: #66b030; }

/* Ribbon Figure Builder tab — lit up when panels exist */
.ribbon-btn.fb-has-panels {
    color: var(--secondary) !important;
    border-bottom: 2px solid var(--secondary);
}
[data-theme="dark"] .ribbon-btn.fb-has-panels { color: #7ec850 !important; border-bottom-color: #7ec850; }

/* ═══════════════════════════════════════════════════════════
   TYPOGRAPHY SECTION — font style buttons
═══════════════════════════════════════════════════════════ */
.font-style-btns {
    display: flex;
    gap: 4px;
}
.fstyle-btn {
    width: 26px; height: 26px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.72rem;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
    font-family: serif;
}
.fstyle-btn:hover  { border-color: var(--primary); color: var(--primary); }
.fstyle-btn.active { border-color: var(--primary); background: var(--primary-muted); color: var(--primary); }
[data-theme="dark"] .fstyle-btn { background: #161920; border-color: #444; color: #aaa; }
[data-theme="dark"] .fstyle-btn:hover  { border-color: #8b8fff; color: #8b8fff; }
[data-theme="dark"] .fstyle-btn.active { border-color: #8b8fff; background: rgba(139,143,255,0.12); color: #8b8fff; }

/* ═══════════════════════════════════════════════════════════
   RIGHT-CLICK CONTEXT MENU on volcano plot
═══════════════════════════════════════════════════════════ */
.gene-context-menu {
    position: fixed;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 4px 0;
    z-index: 9999;
    min-width: 180px;
    font-size: 0.76rem;
    animation: menuIn 0.12s ease;
}
.gene-context-menu .ctx-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 14px;
    cursor: pointer;
    color: var(--text);
    transition: background 0.1s;
}
.gene-context-menu .ctx-item:hover { background: var(--primary-muted); color: var(--primary); }
.gene-context-menu .ctx-gene-name {
    font-weight: 800; font-family: 'DM Mono', monospace;
    font-size: 0.8rem; color: var(--primary);
    padding: 6px 14px 4px;
    border-bottom: 1px solid var(--border);
}
.gene-context-menu .ctx-divider { height: 1px; background: var(--border); margin: 3px 0; }
@keyframes menuIn { from { opacity:0; transform:scale(0.95); } to { opacity:1; transform:scale(1); } }

/* ═══════════════════════════════════════════════════════════
   PLOT THEME — new card-based selector
═══════════════════════════════════════════════════════════ */

/* Light/Dark toggle row */
.theme-mode-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.theme-mode-label {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
}
.dark-plot-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px 3px 5px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface-raised);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.62rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    transition: all var(--transition);
}
.dark-plot-toggle:hover { border-color: var(--border-strong); color: var(--text); }
.dark-plot-toggle.dark-toggle-active {
    border-color: var(--primary);
    background: var(--primary-muted);
    color: var(--primary);
}
.dpt-icon { font-size: 0.75rem; line-height: 1; }
.dpt-track {
    width: 22px; height: 12px;
    background: var(--border-strong);
    border-radius: 6px;
    position: relative;
    transition: background var(--transition);
}
.dark-toggle-active .dpt-track { background: var(--primary); }
.dpt-thumb {
    position: absolute;
    top: 1px; left: 1px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: white;
    transition: transform var(--transition);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.dark-toggle-active .dpt-thumb { transform: translateX(10px); }
.dpt-label { font-size: 0.6rem; }

/* Palette cards (3 in a row) */
.palette-cards {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
}
.palette-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 6px 4px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-raised);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.palette-card:hover { border-color: var(--border-strong); background: var(--chrome-hover); }
.palette-card-active {
    border-color: var(--primary) !important;
    background: var(--primary-muted) !important;
    box-shadow: 0 0 0 2px var(--primary-light);
}
.palette-swatch {
    width: 32px; height: 14px;
    border-radius: 7px;
    overflow: hidden;
    display: flex;
    border: 1px solid rgba(0,0,0,0.08);
    flex-shrink: 0;
}
.ps-half { flex: 1; }
.palette-name {
    font-size: 0.5rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
    line-height: 1.2;
}
.palette-card-active .palette-name { color: var(--primary); }
[data-theme="dark"] .palette-card-active .palette-name { color: #8b8fff; }
[data-theme="dark"] .palette-card-active { border-color: #8b8fff !important; background: rgba(139,143,255,0.10) !important; }

/* Tier cards (3 in a row, with SVG thumbnails) */
.tier-cards {
    display: flex;
    gap: 5px;
    margin-top: 2px;
}
.tier-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 5px 3px 6px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-raised);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.tier-card:hover { border-color: var(--border-strong); }
.tier-card-active {
    border-color: var(--primary) !important;
    background: var(--primary-muted) !important;
    box-shadow: 0 0 0 2px var(--primary-light);
}
[data-theme="dark"] .tier-card-active { border-color: #8b8fff !important; background: rgba(139,143,255,0.10) !important; }
.tier-thumb {
    width: 100%;
    aspect-ratio: 10 / 7;
    border-radius: 3px;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
}
.tier-thumb svg { width: 100%; height: 100%; display: block; }
.tier-card-label {
    font-size: 0.58rem;
    font-weight: 800;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.tier-card-desc {
    font-size: 0.5rem;
    color: var(--text-dim);
    text-align: center;
    line-height: 1.2;
}
.tier-card-active .tier-card-label { color: var(--primary); }
.tier-card-active .tier-card-desc  { color: var(--primary); opacity: 0.7; }
[data-theme="dark"] .tier-card-active .tier-card-label { color: #8b8fff; }
[data-theme="dark"] .tier-card-active .tier-card-desc  { color: #8b8fff; }

/* ── Tier card SVG color system ─────────────────────────────
   Colors driven by data-palette + data-dark on #tier-cards.
   CSS classes on SVG elements map to CSS custom properties.
   Zero JS cost — pure attribute selector cascade.
─────────────────────────────────────────────────────────── */

/* Default (classic light) */
#tier-cards {
    --tc-down: #1565C0; --tc-up: #E65C00;
    --tc-bg: #f8f8f8;   --tc-ns: #aaa;
    --tc-axis: #ccc;    --tc-thresh: #999; --tc-grid: #e0e0e0;
}
/* classic dark */
#tier-cards[data-palette="classic"][data-dark="1"]    { --tc-down:#64B5F6; --tc-up:#FFB74D; --tc-bg:#777; --tc-ns:#ddd; --tc-axis:#999; --tc-thresh:#bbb; --tc-grid:#666; }
/* redgreen light */
#tier-cards[data-palette="redgreen"][data-dark="0"]   { --tc-down:#1B5E20; --tc-up:#B71C1C; }
/* redgreen dark */
#tier-cards[data-palette="redgreen"][data-dark="1"]   { --tc-down:#A5D6A7; --tc-up:#EF9A9A; --tc-bg:#777; --tc-ns:#ddd; --tc-axis:#999; --tc-thresh:#bbb; --tc-grid:#666; }
/* purpleyellow light */
#tier-cards[data-palette="purpleyellow"][data-dark="0"] { --tc-down:#F57F17; --tc-up:#4A148C; }
/* purpleyellow dark */
#tier-cards[data-palette="purpleyellow"][data-dark="1"] { --tc-down:#FFF176; --tc-up:#CE93D8; --tc-bg:#777; --tc-ns:#ddd; --tc-axis:#999; --tc-thresh:#bbb; --tc-grid:#666; }

/* Map CSS classes to custom properties */
.tc-bg          { fill:   var(--tc-bg);     }
.tc-ns          { fill:   var(--tc-ns);     }
.tc-down        { fill:   var(--tc-down);   }
.tc-up          { fill:   var(--tc-up);     }
.tc-axis        { stroke: var(--tc-axis);   fill: none; }
.tc-thresh      { stroke: var(--tc-thresh); fill: none; }
.tc-grid        { stroke: var(--tc-grid);   fill: none; }
.tc-down-stroke { stroke: var(--tc-down);   fill: none; }
.tc-up-stroke   { stroke: var(--tc-up);     fill: none; }
.tc-down-text   { fill:   var(--tc-down);   }
.tc-up-text     { fill:   var(--tc-up);     }

/* Active combination label */
.swatch-clean-tag {
    font-size: 0.55rem; color: var(--primary); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.06em;
    margin-top: 8px; margin-bottom: 0;
    text-align: center;
}
[data-theme="dark"] .swatch-clean-tag { color: #8b8fff; }

/* ═══════════════════════════════════════════════════════════
   GO DOTPLOT — additional styles
═══════════════════════════════════════════════════════════ */
.go-bp  { background: rgba(47,39,206,0.1);   color: #2f27ce; }
.go-mf  { background: rgba(54,107,0,0.1);    color: #366b00; }
.go-cc  { background: rgba(204,153,0,0.15);  color: #996600; }
.go-kegg     { background: rgba(192,57,43,0.1);  color: #c0392b; }
.go-reactome { background: rgba(123,45,139,0.1); color: #7b2d8b; }
.go-other    { background: var(--surface-sunken); color: var(--text-muted); }

[data-theme="dark"] .go-bp       { background: rgba(139,143,255,0.15); color: #8b8fff; }
[data-theme="dark"] .go-mf       { background: rgba(126,200,80,0.15);  color: #7ec850; }
[data-theme="dark"] .go-cc       { background: rgba(255,197,61,0.15);  color: #ffc53d; }
[data-theme="dark"] .go-kegg     { background: rgba(255,100,100,0.15); color: #ff6464; }
[data-theme="dark"] .go-reactome { background: rgba(200,150,255,0.15); color: #c896ff; }

.btn-apply {
    padding: 8px 16px;
    font-size: 0.74rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--primary);
    color: white;
    transition: background var(--transition), transform 0.1s;
}
.btn-apply:hover  { background: #1e19a0; transform: translateY(-1px); }
.btn-apply:active { transform: translateY(0); }
.btn-apply:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Export bar at top of plot area */
.export-bar-top {
    border-radius: 10px 10px 0 0;
    border-top: 1px solid var(--border);
    border-bottom: none;
    margin-top: 0;
    margin-bottom: -1px;
}

/* ═══════════════════════════════════════════════════════════
   COLLAPSIBLE PANELS
═══════════════════════════════════════════════════════════ */
.panel-collapse-btn {
    display: flex; align-items: center; justify-content: center;
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--surface-raised); border: 1px solid var(--border);
    cursor: pointer; color: var(--text-muted); font-size: 0.7rem;
    flex-shrink: 0; transition: background 0.15s, color 0.15s;
    margin-left: auto;
}
.panel-collapse-btn:hover { background: var(--primary-muted); color: var(--primary); }

/* Collapsed left panel */
.panel.collapsed {
    width: 40px !important;
    min-width: 40px !important;
    padding: 12px 8px;
    overflow: hidden;
}
.panel.collapsed .panel-contents { display: none; }
.panel.collapsed .panel-logo { display: none; }
.panel.collapsed .panel-collapse-btn { margin: 0 auto; }

/* Collapsed indicator tab on the side */
.panel-collapsed-label {
    display: none;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    margin-top: 12px;
    white-space: nowrap;
}
.panel.collapsed .panel-collapsed-label { display: block; }

/* Responsive — auto collapse panel on small screens */
@media (max-width: 1100px) {
    .dashboard-body { grid-template-columns: 40px 1fr !important; }
    .tab-panel-host { width: 40px !important; min-width: 40px !important; }
    .tab-panels-stack { display: none; }
}

/* ═══════════════════════════════════════════════════════════
   VOLCANO — 2-COLUMN LAYOUT: tab-panel-host + plot
═══════════════════════════════════════════════════════════ */
.dashboard-body {
    display: grid;
    grid-template-columns: 332px 1fr;
    flex: 1;
    overflow: hidden;
    min-width: 0;
}

/* Tab panel host */
.tab-panel-host {
    display: flex;
    flex-direction: row;
    overflow: hidden;
    border-right: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
    min-width: 0;
    transition: background var(--transition), border-color var(--transition);
}

/* Vertical tab strip */
.tab-strip {
    width: 32px;
    flex-shrink: 0;
    background: var(--surface-sunken);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 0 10px;
    gap: 6px;
    transition: background var(--transition), border-color var(--transition);
}
.tab-handle {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    padding: 12px 5px;
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    font-family: 'DM Sans', sans-serif;
    transition: background var(--transition), color var(--transition);
    position: relative;
}
.tab-handle:hover { background: var(--chrome-hover); color: var(--text); }
.tab-handle-active {
    background: var(--primary-muted);
    color: var(--primary);
}
.tab-handle-active::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--primary);
    border-radius: 0 2px 2px 0;
}
[data-theme="dark"] .tab-handle-active { color: #8b8fff; background: rgba(139,143,255,0.12); }
[data-theme="dark"] .tab-handle-active::before { background: #8b8fff; }

/* Panel stack */
.tab-panels-stack {
    flex: 1;
    position: relative;
    overflow: hidden;
    min-width: 0;
}
.tab-panel {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 14px;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-8px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}
.tab-panel-active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
}

/* Plot area */
.plot-area {
    padding: 14px 40px 14px 14px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-width: 0;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}

/* Plot toolbar */
.plot-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 10px 10px 0 0;
    gap: 10px;
    flex-shrink: 0;
    transition: background var(--transition), border-color var(--transition);
}
.plot-toolbar-left  { display: flex; align-items: center; gap: 8px; }
.plot-toolbar-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.toolbar-label {
    font-size: 0.58rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.toolbar-select {
    padding: 4px 7px;
    font-size: 0.7rem;
    font-family: 'DM Sans', sans-serif;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-raised);
    color: var(--text);
    cursor: pointer;
    min-width: 120px;
}
.toolbar-export-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 13px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--primary);
    background: var(--primary-muted);
    color: var(--primary);
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.toolbar-export-btn:hover { background: var(--primary); color: white; }
[data-theme="dark"] .toolbar-export-btn { border-color: #8b8fff; color: #8b8fff; background: rgba(139,143,255,0.10); }
[data-theme="dark"] .toolbar-export-btn:hover { background: #8b8fff; color: #1a1a1a; }

/* Export Preview button inside drawer */
.btn-export-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 7px 13px;
    font-size: 0.68rem;
    font-weight: 700;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--primary);
    background: var(--primary-muted);
    color: var(--primary);
    transition: background var(--transition), color var(--transition);
    letter-spacing: 0.02em;
    margin-bottom: 10px;
}
.btn-export-preview:hover { background: var(--primary); color: white; }
.btn-export-preview.preview-active { background: var(--primary); color: white; }
[data-theme="dark"] .btn-export-preview { border-color: #8b8fff; color: #8b8fff; background: rgba(139,143,255,0.10); }
[data-theme="dark"] .btn-export-preview:hover,
[data-theme="dark"] .btn-export-preview.preview-active { background: #8b8fff; color: #1a1a1a; }

/* Export preview studio background */
.export-preview-studio {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: #3a3a3a;
    border-radius: 0 0 10px 10px;
    padding: 24px;
    min-height: 200px;
}

/* Floating Export Drawer */
.export-drawer {
    position: absolute;
    top: 52px;
    right: 40px;
    z-index: 200;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    min-width: 380px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: background var(--transition), border-color var(--transition), opacity 0.16s ease, transform 0.16s ease;
}
.export-drawer-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.export-drawer-inner { padding: 14px 16px; }
.export-drawer-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.68rem;
    font-weight: 800;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 12px;
}
.export-drawer-close {
    width: 22px; height: 22px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.65rem;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.12s, color 0.12s;
}
.export-drawer-close:hover { background: var(--danger); color: white; border-color: var(--danger); }
.export-dims-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}
.export-formats-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

/* When label mode is active, expand right+left margins of plot */

/* ═══════════════════════════════════════════════════════════
   UNIFIED TOAST NOTIFICATION
═══════════════════════════════════════════════════════════ */
.op-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    background: #1a1a2e;
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    box-shadow: 0 4px 24px rgba(0,0,0,0.35);
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    max-width: 90vw;
    white-space: normal;
    text-align: center;
}
.op-toast.op-toast-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}
.op-toast.op-toast-success { background: #166534; }
.op-toast.op-toast-warning { background: #92400e; }
.op-toast.op-toast-error   { background: #991b1b; }
.op-toast.op-toast-info    { background: #1e3a5f; }
[data-theme="dark"] .op-toast { box-shadow: 0 4px 24px rgba(0,0,0,0.6); }