style.css

/* ================================================================
   EEGDash Space — visual design system
   -----------------------------------------------------------------
   Scale:  1  2  3  4  5  6  7  8  9  10
           4  8 12 16 20 24 32 40 56 72  (px)
   Radii:  6 (sm) / 10 (md) / 14 (lg) / 20 (xl)
   Motion: 150ms ease for hover, 220ms for layout
   Palette (Okabe-Ito + slate neutrals):
     brand      #0072B2   (EEG waves; primary interaction)
     accent     #E69F00   (reserved for 🤗 flag, never decorative)
     success    #009E73
     danger     #D55E00
     ink / text #0f172a   /   muted  #64748b
     surface    #ffffff   /   subtle #f1f5f9   /   outline #e2e8f0
   ================================================================ */

:root {
  --brand: #0072B2;
  --brand-strong: #005A8F;
  --brand-soft: #e6f1fa;
  --accent: #E69F00;
  --accent-soft: #fdf2dd;
  --ok: #009E73;
  --ink: #0f172a;
  --muted: #64748b;
  --outline: #e2e8f0;
  --surface: #ffffff;
  --subtle: #f1f5f9;
  --code-bg: #0f172a;
  --code-ink: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow-md: 0 4px 14px rgba(15,23,42,.08);
}

.dark, .dark :root, html.dark {
  --ink: #e2e8f0;
  --muted: #94a3b8;
  --outline: #1f2937;
  --surface: #111827;
  --subtle: #0b1220;
  --brand-soft: #102a42;
  --accent-soft: #2a1d00;
  --code-bg: #020617;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 6px 20px rgba(0,0,0,.5);
}

.gradio-container {
  max-width: 1320px !important;
  padding: 24px 20px 40px !important;
}

/* Kill gradio's default form chrome around our HTML blocks. */
.eeg-hero-wrap, .eeg-modality-wrap, .eeg-foot-wrap {
  background: transparent !important;
  border: 0 !important;
  padding: 0 !important;
  box-shadow: none !important;
}
.eeg-hero-wrap > .prose, .eeg-modality-wrap > .prose, .eeg-foot-wrap > .prose { max-width: none; }

/* ---------- Hero ---------- */

.eeg-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding: 32px 28px;
  border-radius: 20px;
  background:
    radial-gradient(1200px 320px at -10% -40%, rgba(0,114,178,.14), transparent 60%),
    radial-gradient(900px 240px at 110% -30%, rgba(230,159,0,.10), transparent 60%),
    linear-gradient(180deg, var(--surface), var(--subtle));
  border: 1px solid var(--outline);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.eeg-hero__logo {
  display: block;
  height: 52px;
  width: auto;
  margin: 0 0 14px;
  /* The mark ships dark — invert on dark mode so it still reads. */
}
html.dark .eeg-hero__logo { filter: invert(1) hue-rotate(180deg) brightness(1.05); }

.eeg-hero__kicker {
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 10px;
}

.eeg-hero__title {
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 14px;
}

.eeg-hero__lede {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
  margin: 0 0 18px;
  max-width: 58ch;
}

.eeg-hero__lede a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms ease;
}
.eeg-hero__lede a:hover { border-bottom-color: var(--brand); }

.eeg-hero__cta { display: flex; gap: 8px; flex-wrap: wrap; }

.eeg-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--outline);
  background: var(--surface);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}
.eeg-btn:hover { transform: translateY(-1px); border-color: var(--brand); }
.eeg-btn--primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.eeg-btn--primary:hover { background: var(--brand-strong); border-color: var(--brand-strong); }

.eeg-btn--icon svg {
  width: 14px;
  height: 14px;
  color: currentColor;
  flex-shrink: 0;
}
.eeg-btn--icon span { line-height: 1; }

.eeg-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.eeg-stat {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}

.eeg-stat__n {
  font-family: "Inter", ui-sans-serif, sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
}
.eeg-stat__l {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 6px;
  text-transform: lowercase;
}
.eeg-stat__meta { opacity: .7; margin-left: 4px; }

.eeg-stat--accent {
  background: linear-gradient(135deg, var(--accent-soft), var(--surface));
  border-color: color-mix(in srgb, var(--accent) 35%, var(--outline));
}
.eeg-stat--accent .eeg-stat__n { color: var(--accent); }

@media (max-width: 860px) {
  .eeg-hero { grid-template-columns: 1fr; padding: 24px 18px; }
  .eeg-hero__stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Modality strip ---------- */

.eeg-modality {
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--outline);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.eeg-modality__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.eeg-modality__title {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.eeg-modality__meta {
  color: var(--muted);
  font-size: 12.5px;
}

.eeg-bar {
  display: flex;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--subtle);
  box-shadow: inset 0 0 0 1px var(--outline);
}
.eeg-bar__seg { display: block; height: 100%; transition: filter 150ms ease; }
.eeg-bar__seg:hover { filter: brightness(1.08); }

.eeg-legend {
  display: flex;
  flex-wrap: nowrap;
  gap: 14px;
  margin-top: 12px;
  overflow-x: auto;
  white-space: nowrap;
  padding-bottom: 4px; /* space for the horizontal scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--outline) transparent;
}
.eeg-legend::-webkit-scrollbar { height: 6px; }
.eeg-legend::-webkit-scrollbar-thumb { background: var(--outline); border-radius: 999px; }

.eeg-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ink);
  flex-shrink: 0;
}
.eeg-legend__swatch {
  width: 10px; height: 10px;
  border-radius: 3px;
  display: inline-block;
}
.eeg-legend__n {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin-left: 2px;
}

/* ---------- Toolbar & filters ---------- */

.eeg-toolbar {
  gap: 12px;
  margin-bottom: 8px !important;
}

.eeg-search textarea, .eeg-search input {
  font-size: 15px !important;
  padding: 12px 14px !important;
  border-radius: 12px !important;
}

.eeg-toggle label {
  font-weight: 500;
  color: var(--ink);
}

.eeg-filters { margin-top: 4px; }
.eeg-filters label span { color: var(--muted); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }

/* CheckboxGroup → chip style */
.eeg-filters .wrap.svelte-1j5x5b > label,
.eeg-filters fieldset label {
  border-radius: 999px !important;
  padding: 6px 12px !important;
  border: 1px solid var(--outline) !important;
  background: var(--surface) !important;
  transition: all 150ms ease;
}
.eeg-filters input[type="checkbox"]:checked + span {
  color: var(--brand);
}

/* ---------- Main table + detail ---------- */

.eeg-main { gap: 16px !important; align-items: stretch; }

.eeg-main__table, .eeg-main__detail {
  min-width: 0;
}

.eeg-table {
  border-radius: 14px !important;
  overflow: hidden !important;
  border: 1px solid var(--outline) !important;
  background: var(--surface) !important;
  box-shadow: var(--shadow-sm);
}

.eeg-table table {
  font-size: 13px !important;
  font-variant-numeric: tabular-nums;
}

.eeg-table thead th {
  background: var(--subtle) !important;
  color: var(--muted) !important;
  font-weight: 600 !important;
  font-size: 11.5px !important;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--outline) !important;
  padding: 10px 12px !important;
}

.eeg-table tbody td {
  padding: 9px 12px !important;
  border-bottom: 1px solid var(--outline) !important;
  color: var(--ink);
}

.eeg-table tbody tr { transition: background 150ms ease, transform 150ms ease; }
.eeg-table tbody tr:hover { background: var(--brand-soft) !important; cursor: pointer; }
.eeg-table tbody tr.selected { background: var(--brand-soft) !important; }

/* First column = slug, emphasized */
.eeg-table tbody td:first-child {
  font-weight: 600;
  color: var(--brand);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px !important;
}

/* 🤗 column (last) */
.eeg-table tbody td:last-child {
  text-align: center;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Detail card ---------- */

.eeg-detail { padding: 0 !important; background: transparent !important; border: 0 !important; }

.eeg-card {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 14px;
  padding: 24px;
  box-shadow: var(--shadow-md);
  min-height: 520px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.eeg-card--empty {
  background: linear-gradient(180deg, var(--subtle), var(--surface));
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
}
.eeg-card__ghost-mark {
  opacity: .22;
  margin: 0 auto 14px;
  width: 96px;
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.eeg-card__ghost-mark svg { width: 100%; height: 100%; }

.eeg-card__ghost-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.eeg-card--empty p { max-width: 36ch; font-size: 14px; line-height: 1.5; }

.eeg-card__id {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.eeg-card__rec {
  margin-left: auto;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--subtle);
  border: 1px solid var(--outline);
  padding: 4px;
  object-fit: contain;
}
html.dark .eeg-card__rec { filter: invert(1) hue-rotate(180deg) brightness(1.1); }
.eeg-card__slug {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 10px;
  border-radius: 8px;
}
.eeg-card__modality {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--hue, var(--muted));
  padding: 4px 10px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--hue, var(--muted)) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--hue, var(--muted)) 30%, transparent);
}

.eeg-card__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-weight: 700;
}

.eeg-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.eeg-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--subtle);
  border: 1px solid var(--outline);
  color: var(--ink);
  font-size: 11.5px;
  font-weight: 500;
  text-decoration: none;
  transition: background 150ms ease, border-color 150ms ease;
}
.eeg-tag:hover { background: var(--brand-soft); border-color: var(--brand); }
.eeg-tag--accent {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--outline));
  color: var(--accent);
}
.eeg-tag--accent:hover { border-color: var(--accent); }
.eeg-tag--muted { color: var(--muted); cursor: default; }
.eeg-tag--muted:hover { background: var(--subtle); border-color: var(--outline); }

.eeg-card__kvs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
  background: var(--subtle);
  border-radius: 12px;
  border: 1px solid var(--outline);
}
.eeg-kv { text-align: center; }
.eeg-kv__n {
  font-family: "Inter", ui-sans-serif, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.eeg-kv__l {
  color: var(--muted);
  font-size: 11px;
  margin-top: 5px;
  text-transform: lowercase;
  letter-spacing: .02em;
}

@media (max-width: 620px) {
  .eeg-card__kvs { grid-template-columns: repeat(3, 1fr); }
}

.eeg-card__h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  font-weight: 600;
  margin: 4px 0 10px;
}

.eeg-snippet + .eeg-snippet { margin-top: 10px; }

.eeg-snippet {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--outline);
}
.eeg-snippet__hd {
  background: var(--subtle);
  padding: 6px 12px;
  font-size: 11.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--outline);
  font-weight: 500;
}
.eeg-snippet__code {
  margin: 0;
  padding: 14px 16px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  overflow-x: auto;
}

.eeg-note {
  margin: 10px 0 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.eeg-note a { color: var(--brand); }

/* ---------- Overview plots ---------- */

.eeg-overview {
  margin: 8px 0 12px !important;
}
.eeg-overview .label-wrap {
  font-weight: 600 !important;
  color: var(--ink) !important;
  font-size: 13.5px !important;
}

.eeg-overview__lede {
  margin: 0 0 10px !important;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  max-width: 78ch;
}
.eeg-overview__lede em {
  font-style: normal;
  color: var(--ink);
  font-weight: 600;
  background: var(--brand-soft);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Tab strip inside Catalog views — make the tab buttons chip-like so the
   "Flow / Bubbles / Treemap / …" row reads as a choice of lens, not a
   throwaway. */
.eeg-tabs [role="tablist"] {
  gap: 6px !important;
  border-bottom: 1px solid var(--outline) !important;
  padding: 0 0 0 2px !important;
  margin-bottom: 14px !important;
}
.eeg-tabs [role="tab"] {
  padding: 8px 14px !important;
  border-radius: 10px 10px 0 0 !important;
  font-weight: 500 !important;
  font-size: 13.5px !important;
  color: var(--muted) !important;
  border: 1px solid transparent !important;
  border-bottom: 0 !important;
  background: transparent !important;
  transition: color 150ms ease, background 150ms ease;
}
.eeg-tabs [role="tab"]:hover { color: var(--ink) !important; background: var(--subtle) !important; }
.eeg-tabs [role="tab"][aria-selected="true"] {
  color: var(--brand) !important;
  background: var(--surface) !important;
  border-color: var(--outline) !important;
  box-shadow: 0 1px 0 0 var(--surface);
}

/* Plotly fragments ship their own .eegdash-figure wrapper. Let it render as-is
   but make sure it doesn't get boxed twice by gradio's surrounding block. */
.eeg-plot { padding: 0 !important; background: transparent !important; border: 0 !important; }
.eeg-plot .eegdash-figure {
  margin: 0 !important;
  width: 100% !important;
}
.eeg-plot .eegdash-branding { display: none; }

/* ---------- Footer ---------- */

.eeg-foot {
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
  padding: 24px 0 8px;
  margin-top: 16px;
  border-top: 1px solid var(--outline);
}
.eeg-foot a { color: var(--brand); text-decoration: none; margin: 0 4px; }
.eeg-foot a:hover { text-decoration: underline; }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .eeg-main { flex-direction: column !important; }
}