/* ============================================================
   SAIB benchmark database — redesign
   Design tokens: theme (light/dark) × direction (a/b) × density
   Neutral grayscale base + single tweakable accent.
   ============================================================ */

:root {
  --font-sans: "Manrope", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-display: "Space Grotesk", "Manrope", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --accent: #2E6BE6;            /* overridden inline by tweak */
  --accent-ink: #ffffff;         /* text on accent fills */

  /* row + control sizing, switched by density */
  --row-pad-y: 13px;
  --cell-fs: 13.5px;
  --radius: 10px;
}

/* ---- light theme neutrals --------------------------------- */
[data-theme="light"] {
  --bg:        #f6f7f9;
  --bg-sunken: #eef0f3;
  --surface:   #ffffff;
  --surface-2: #fbfcfd;
  --line:      #e4e7ec;
  --line-soft: #eef1f4;
  --ink:       #14181f;
  --ink-2:     #424a57;
  --ink-3:     #6b7480;
  --ink-4:     #98a1ad;
  --bar-track: #eceef2;
  --shadow-sm: 0 1px 2px rgba(16,22,32,.06), 0 1px 3px rgba(16,22,32,.04);
  --shadow-md: 0 4px 14px rgba(16,22,32,.07), 0 1px 3px rgba(16,22,32,.05);
  --shadow-lg: 0 18px 48px rgba(16,22,32,.16);
  --accent-tint: color-mix(in srgb, var(--accent) 10%, var(--surface));
  --accent-tint-2: color-mix(in srgb, var(--accent) 16%, var(--surface));
  --accent-line: color-mix(in srgb, var(--accent) 32%, var(--line));
}

/* ---- dark theme neutrals ---------------------------------- */
[data-theme="dark"] {
  --bg:        #0c0e12;
  --bg-sunken: #08090c;
  --surface:   #14171d;
  --surface-2: #181c23;
  --line:      #262b34;
  --line-soft: #1d222a;
  --ink:       #f3f5f8;
  --ink-2:     #b9c0cc;
  --ink-3:     #828b99;
  --ink-4:     #5b636f;
  --bar-track: #232831;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 6px 18px rgba(0,0,0,.5);
  --shadow-lg: 0 22px 60px rgba(0,0,0,.6);
  --accent-tint: color-mix(in srgb, var(--accent) 20%, var(--surface));
  --accent-tint-2: color-mix(in srgb, var(--accent) 28%, var(--surface));
  --accent-line: color-mix(in srgb, var(--accent) 42%, var(--line));
}

/* density ---------------------------------------------------- */
[data-density="compact"] { --row-pad-y: 8px; --cell-fs: 12.5px; }

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.app { min-height: 100vh; background: var(--bg); color: var(--ink); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }

.num { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--font-mono); }

/* scrollbars */
*::-webkit-scrollbar { height: 10px; width: 10px; }
*::-webkit-scrollbar-thumb { background: var(--line); border-radius: 99px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-thumb:hover { background: var(--ink-4); background-clip: padding-box; }

/* ============================================================
   APP SHELL
   Direction A = left sidebar.   Direction B = top nav, centered.
   ============================================================ */
.shell { display: flex; min-height: 100vh; }
[data-direction="b"] .shell { flex-direction: column; }

/* ---- sidebar (A) ---- */
.sidebar {
  width: 248px; flex: 0 0 248px;
  position: sticky; top: 0; align-self: flex-start;
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  padding: 22px 16px;
  gap: 4px;
}
[data-direction="b"] .sidebar { display: none; }

.brand { display: flex; align-items: center; gap: 11px; padding: 6px 8px 20px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px; flex: 0 0 34px;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 15px;
  letter-spacing: -.5px;
}
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; letter-spacing: -.4px; }
.brand-sub { font-size: 11px; color: var(--ink-3); letter-spacing: .02em; margin-top: 1px; }

.nav-group-label { font-size: 10.5px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-4); padding: 16px 10px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 11px; border-radius: 9px;
  color: var(--ink-2); font-size: 13.5px; font-weight: 550;
  border: 1px solid transparent;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--bg-sunken); color: var(--ink); }
.nav-item.active { background: var(--accent-tint); color: var(--accent); border-color: var(--accent-line); }
.nav-item.active .ico { color: var(--accent); }
.nav-item .ico { color: var(--ink-3); flex: 0 0 auto; }
.nav-count { margin-left: auto; font-size: 11.5px; font-variant-numeric: tabular-nums; color: var(--ink-4); background: var(--bg-sunken); padding: 1px 7px; border-radius: 99px; }
.nav-item.active .nav-count { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); }
.sidebar-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line-soft); display: flex; flex-direction: column; gap: 10px; }

/* ---- top nav (B) ---- */
.topnav { display: none; }
[data-direction="b"] .topnav {
  display: flex; align-items: center; gap: 28px;
  height: 66px; padding: 0 32px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 30;
}
.topnav .brand { padding: 0; }
.topnav-links { display: flex; align-items: center; gap: 4px; }
.topnav-link {
  padding: 8px 14px; border-radius: 99px; font-size: 13.5px; font-weight: 600;
  color: var(--ink-3); transition: color .12s, background .12s;
}
.topnav-link:hover { color: var(--ink); background: var(--bg-sunken); }
.topnav-link.active { color: var(--accent); background: var(--accent-tint); }
.topnav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* ---- main column ---- */
.main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.main-inner { padding: 28px 34px 80px; flex: 1; }
[data-direction="b"] .main-inner { max-width: 1200px; margin: 0 auto; width: 100%; padding: 40px 32px 96px; }

/* page header */
.page-head { display: flex; align-items: flex-end; gap: 18px; margin-bottom: 22px; }
.page-head .eyebrow { font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 7px; }
.page-title { font-family: var(--font-display); font-weight: 700; letter-spacing: -.8px; font-size: 26px; line-height: 1.05; margin: 0; }
[data-direction="b"] .page-title { font-size: 40px; letter-spacing: -1.4px; }
[data-direction="b"] .page-head { flex-direction: column; align-items: flex-start; gap: 6px; margin-bottom: 30px; }
.page-desc { color: var(--ink-3); font-size: 14px; margin-top: 8px; max-width: 60ch; line-height: 1.5; }
.page-head-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
[data-direction="b"] .page-head-actions { margin-left: 0; margin-top: 14px; }

/* ============================================================
   CONTROLS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 9px 15px; border-radius: 9px;
  font-size: 13px; font-weight: 600;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2);
  transition: background .12s, border-color .12s, color .12s, transform .04s;
}
.btn:hover { border-color: var(--ink-4); color: var(--ink); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, #000); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--bg-sunken); }
.btn.sm { padding: 6px 11px; font-size: 12.5px; }
.btn .ico { color: currentColor; }

.icon-btn {
  width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2);
  transition: background .12s, color .12s, border-color .12s;
}
.icon-btn:hover { color: var(--ink); border-color: var(--ink-4); }

/* segmented control */
.seg { display: inline-flex; background: var(--bg-sunken); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 2px; }
.seg button {
  border: 0; background: transparent; color: var(--ink-3);
  padding: 6px 14px; border-radius: 7px; font-size: 12.5px; font-weight: 600;
  transition: all .12s;
}
.seg button:hover { color: var(--ink); }
.seg button.on { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
[data-direction="b"] .seg button.on { color: var(--accent); }

/* select + search */
.field { position: relative; display: inline-flex; flex-direction: column; gap: 5px; }
.field-label { font-size: 11px; font-weight: 600; color: var(--ink-3); letter-spacing: .02em; padding-left: 2px; }
.select-wrap { position: relative; }
.select-wrap .chev { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); pointer-events: none; color: var(--ink-4); }
select.input, input.input {
  appearance: none; -webkit-appearance: none;
  background: var(--surface); border: 1px solid var(--line); color: var(--ink);
  border-radius: 9px; padding: 8px 30px 8px 12px; font-size: 13px; font-family: inherit;
  min-width: 150px; transition: border-color .12s, box-shadow .12s;
}
input.input { padding-right: 12px; }
select.input:focus, input.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
input.input::placeholder { color: var(--ink-4); }
.search { position: relative; }
.search .ico { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--ink-4); }
.search input.input { padding-left: 34px; min-width: 230px; }
.check-field { min-width: 92px; }
.toggle-row {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 34px; padding: 0 10px; border: 1px solid var(--line);
  border-radius: 9px; background: var(--surface); color: var(--ink-2);
  font-size: 13px; font-weight: 600;
}
.toggle-row input { accent-color: var(--accent); margin: 0; }

/* ============================================================
   CARDS / PANELS
   ============================================================ */
.panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
[data-direction="b"] .panel { box-shadow: none; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 3px;
}
[data-direction="b"] .stat { box-shadow: none; }
.stat-label { font-size: 11.5px; font-weight: 600; color: var(--ink-3); letter-spacing: .03em; text-transform: uppercase; display: flex; align-items: center; gap: 7px; }
.stat-value { font-family: var(--font-display); font-weight: 700; font-size: 30px; letter-spacing: -1px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-meta { font-size: 12px; color: var(--ink-4); margin-top: 2px; }
.stat-meta .up { color: color-mix(in srgb, var(--accent) 70%, #15a36a); font-weight: 600; }

/* ============================================================
   TABLE
   ============================================================ */
.toolbar { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .spacer { flex: 1; }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.facet-bar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; min-height: 28px; }
.facet-count { margin-left: auto; font-size: 12.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
.facet-count b { color: var(--ink); font-weight: 700; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 10px 5px 12px; border-radius: 99px; font-size: 12px; font-weight: 600;
  background: var(--accent-tint); color: var(--accent); border: 1px solid var(--accent-line);
}
.chip button { border: 0; background: none; color: inherit; display: grid; place-items: center; opacity: .7; padding: 0; }
.chip button:hover { opacity: 1; }

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow-sm); }
[data-direction="b"] .table-wrap { box-shadow: none; }
table.tbl { width: 100%; border-collapse: collapse; font-size: var(--cell-fs); }
table.tbl thead th {
  position: sticky; top: 0; z-index: 2;
  background: var(--surface-2); color: var(--ink-3);
  font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  text-align: left; padding: 11px 14px; white-space: nowrap;
  border-bottom: 1px solid var(--line); cursor: pointer; user-select: none;
}
table.tbl thead th.right { text-align: right; }
table.tbl thead th:hover { color: var(--ink); }
table.tbl thead th .sort { display: inline-flex; align-items: center; gap: 5px; }
.sort-ind { opacity: .35; transition: opacity .12s; }
th.sorted .sort-ind { opacity: 1; color: var(--accent); }
table.tbl tbody td { padding: var(--row-pad-y) 14px; border-bottom: 1px solid var(--line-soft); white-space: nowrap; color: var(--ink-2); }
table.tbl tbody tr { transition: background .1s; cursor: pointer; }
table.tbl tbody tr:hover { background: var(--bg-sunken); }
table.tbl tbody tr:last-child td { border-bottom: 0; }
table.tbl td.right { text-align: right; }
.cell-strong { color: var(--ink); font-weight: 600; }
.cell-mono { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); }
.muted { color: var(--ink-4); }

/* rank cell */
.rank { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; font-weight: 700; font-size: 12.5px; font-variant-numeric: tabular-nums; background: var(--bg-sunken); color: var(--ink-3); }
.rank.r1 { background: var(--accent); color: var(--accent-ink); }
.rank.r2 { background: var(--accent-tint-2); color: var(--accent); }
.rank.r3 { background: var(--accent-tint); color: var(--accent); }

/* score bar */
.scorecell { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.scorecell .val { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--ink); min-width: 74px; text-align: right; font-size: 14px; }
.bar { flex: 1; height: 7px; border-radius: 99px; background: var(--bar-track); overflow: hidden; min-width: 60px; }
.bar > i { display: block; height: 100%; border-radius: 99px; background: var(--accent); }
[data-bars="off"] .scorecell .bar { display: none; }

/* vendor dot */
.vendor { display: inline-flex; align-items: center; gap: 8px; }
.vdot { width: 8px; height: 8px; border-radius: 99px; flex: 0 0 8px; background: var(--ink-4); }
.vdot.NVIDIA { background: #76b900; }
.vdot.AMD { background: #ed1c24; }
.vdot.Apple { background: #a2aaad; }
.vdot.Intel { background: #0068b5; }

/* badges */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 99px; font-size: 11.5px; font-weight: 600; border: 1px solid var(--line); color: var(--ink-3); background: var(--surface-2); }
.badge.known { color: color-mix(in srgb, var(--accent) 60%, #16a06a); border-color: color-mix(in srgb, #16a06a 30%, var(--line)); background: color-mix(in srgb, #16a06a 9%, var(--surface)); }
.badge.legacy { color: #b08000; border-color: color-mix(in srgb, #b08000 30%, var(--line)); background: color-mix(in srgb, #b08000 9%, var(--surface)); }
.badge.type { text-transform: capitalize; }

.tbl-foot { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 12.5px; }
.pager { display: flex; gap: 4px; align-items: center; }
.pager button { width: 30px; height: 30px; border-radius: 7px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); font-size: 12.5px; }
.pager button:hover:not(:disabled) { border-color: var(--ink-4); color: var(--ink); }
.pager button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.pager button:disabled { opacity: .4; cursor: not-allowed; }

.empty { padding: 60px 20px; text-align: center; color: var(--ink-4); }
.empty .ico { margin-bottom: 12px; color: var(--ink-4); }

/* row select checkbox */
.ck { width: 17px; height: 17px; border-radius: 5px; border: 1.5px solid var(--line); display: inline-grid; place-items: center; background: var(--surface); transition: all .12s; flex: 0 0 17px; }
.ck.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
tr.selected { background: var(--accent-tint) !important; }

/* ============================================================
   DETAIL DRAWER
   ============================================================ */
.scrim { position: fixed; inset: 0; background: rgba(8,10,14,.5); backdrop-filter: blur(2px); z-index: 80; animation: fade .18s ease; }
@keyframes fade { from { opacity: 0; } }
.drawer {
  position: fixed; top: 0; right: 0; height: 100vh; width: min(560px, 94vw);
  background: var(--surface); border-left: 1px solid var(--line); z-index: 90;
  box-shadow: var(--shadow-lg); display: flex; flex-direction: column;
  animation: slidein .26s cubic-bezier(.22,.8,.3,1);
}
@keyframes slidein { from { transform: translateX(34px); } }
@media (prefers-reduced-motion: reduce) { .scrim, .drawer { animation: none; } }
.drawer-head { padding: 22px 24px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: flex-start; gap: 14px; }
.drawer-body { overflow-y: auto; padding: 6px 24px 40px; flex: 1; }
.drawer-title { font-family: var(--font-display); font-weight: 700; font-size: 19px; letter-spacing: -.5px; }
.drawer-sub { color: var(--ink-3); font-size: 13px; margin-top: 4px; }

.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0 8px; }
.metric { border: 1px solid var(--line); border-radius: 10px; padding: 13px 15px; background: var(--surface-2); }
.metric.hero {
  grid-column: 1 / -1; background: var(--accent-tint); border-color: var(--accent-line);
  padding: 13px 15px;
}
.metric .k { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-3); }
.metric.hero .k { color: var(--accent); }
.metric .v {
  display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap;
  font-family: var(--font-display); font-weight: 700; font-size: 23px; letter-spacing: -.5px;
  line-height: 1.12; margin-top: 3px; font-variant-numeric: tabular-nums;
}
.metric .u { font-size: 12px; line-height: 1; color: var(--ink-4); font-weight: 500; }

.spec-group { margin-top: 26px; }
.spec-group h4 { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-4); margin: 0 0 4px; }
.spec-list { display: flex; flex-direction: column; }
.spec-list .row { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 13px; }
.spec-list .row .k { color: var(--ink-3); flex: 0 0 auto; }
.spec-list .row .v { color: var(--ink); text-align: right; font-weight: 550; word-break: break-word; }

/* ============================================================
   COMPARE VIEW
   ============================================================ */
.compare-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.cmp-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; box-shadow: var(--shadow-sm); }
[data-direction="b"] .cmp-card { box-shadow: none; }
.cmp-card.best { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow-md); }
.cmp-head { padding: 16px 16px 14px; border-bottom: 1px solid var(--line); position: relative; }
.cmp-head .best-tag { position: absolute; top: 12px; right: 12px; font-size: 10px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--accent-ink); background: var(--accent); padding: 2px 8px; border-radius: 99px; }
.cmp-gpu { font-weight: 700; font-size: 15px; }
.cmp-model { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
.cmp-rows { padding: 6px 16px 14px; }
.cmp-rows .crow { padding: 11px 0; border-bottom: 1px solid var(--line-soft); }
.cmp-rows .crow:last-child { border-bottom: 0; }
.cmp-rows .ck-label { font-size: 11.5px; color: var(--ink-3); font-weight: 600; }
.cmp-rows .cval { font-family: var(--font-display); font-weight: 700; font-size: 19px; font-variant-numeric: tabular-nums; letter-spacing: -.4px; margin-top: 3px; display: flex; align-items: baseline; gap: 5px; }
.cmp-rows .cval .u { font-size: 11px; color: var(--ink-4); font-weight: 500; }
.cmp-rows .cbar { height: 6px; border-radius: 99px; background: var(--bar-track); overflow: hidden; margin-top: 7px; }
.cmp-rows .cbar > i { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
.cmp-rows .best-val { color: var(--accent); }

.cmp-empty { border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 50px 24px; text-align: center; color: var(--ink-4); }

/* picker for compare */
.picker-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 22px; }

/* ============================================================
   HOME / LANDING
   ============================================================ */
.hero { padding: 26px 0 8px; }
.hero .eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.hero h1 { font-family: var(--font-display); font-weight: 700; font-size: 52px; line-height: 1.02; letter-spacing: -2px; margin: 14px 0 0; max-width: 16ch; }
[data-direction="a"] .hero h1 { font-size: 44px; }
.hero p { color: var(--ink-2); font-size: 16px; line-height: 1.55; max-width: 56ch; margin: 18px 0 0; }
.hero-cta { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

.home-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 34px; }
@media (max-width: 880px) { .home-split { grid-template-columns: 1fr; } }
.feature-card {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
  padding: 22px; box-shadow: var(--shadow-sm); transition: transform .14s, box-shadow .14s, border-color .14s;
  display: flex; flex-direction: column; gap: 6px;
}
.feature-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--accent-line); }
.feature-card .fc-ico { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-tint); color: var(--accent); display: grid; place-items: center; margin-bottom: 8px; }
.feature-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 19px; margin: 0; letter-spacing: -.4px; }
.feature-card p { color: var(--ink-3); font-size: 13.5px; line-height: 1.5; margin: 2px 0 0; }
.feature-card .fc-foot { margin-top: auto; padding-top: 16px; display: flex; align-items: center; justify-content: space-between; }
.fc-count { font-family: var(--font-display); font-weight: 700; font-size: 22px; font-variant-numeric: tabular-nums; }
.fc-go { color: var(--accent); font-weight: 600; font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }

.leaderboard-teaser { margin-top: 16px; }
.lt-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.lt-title { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -.4px; }

.section-label { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-4); margin: 38px 0 12px; }

/* theme toggle pill */
.theme-toggle { display: inline-flex; background: var(--bg-sunken); border: 1px solid var(--line); border-radius: 99px; padding: 3px; }
.theme-toggle button { border: 0; background: transparent; width: 30px; height: 28px; border-radius: 99px; display: grid; place-items: center; color: var(--ink-3); }
.theme-toggle button.on { background: var(--surface); color: var(--accent); box-shadow: var(--shadow-sm); }

/* misc */
.kbd { font-family: var(--font-mono); font-size: 11px; padding: 1px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; color: var(--ink-3); background: var(--surface-2); }
.divider { height: 1px; background: var(--line); margin: 0; border: 0; }
.fadein { animation: fadeUp .32s ease; }
@keyframes fadeUp { from { transform: translateY(8px); } to { transform: none; } }
@media (prefers-reduced-motion: reduce) { .fadein { animation: none; } }

@media (max-width: 720px) {
  .sidebar { display: none; }
  .main-inner { padding: 20px 16px 80px; }
  .hero h1 { font-size: 34px !important; }
}

/* ============================================================
   SKIN: "Barebones" — closer to the original MDL brown/amber dev UI.
   Pure token + edge overrides; no structural / feature changes.
   Flat surfaces, near-square corners, simple bordered buttons,
   warm paper background, brown primary + amber data accent.
   ============================================================ */
[data-skin="bare"] {
  --radius: 3px;
  --font-display: var(--font-sans) !important;   /* plainer headings */
  --shadow-sm: 0 0 0 1px transparent;
  --shadow-md: 0 1px 0 rgba(0,0,0,.05);
  /* keep a soft lift only for the slide-over drawer */
}
[data-skin="bare"][data-theme="light"] {
  --bg:        #f4f5f6;
  --bg-sunken: #e9eaec;
  --surface:   #ffffff;
  --surface-2: #f7f8f9;
  --line:      #dcdee1;
  --line-soft: #e8eaec;
  --ink:       #23262b;
  --ink-2:     #444a52;
  --ink-3:     #6e757e;
  --ink-4:     #a3a9b1;
  --bar-track: #e4e6e9;
  --accent:     #6d4c41 !important;   /* brown 600 */
  --accent-ink: #ffffff !important;
}
[data-skin="bare"][data-theme="dark"] {
  --bg:        #1a1714;
  --bg-sunken: #131110;
  --surface:   #221d19;
  --surface-2: #271f1a;
  --line:      #3a322b;
  --line-soft: #2c2520;
  --ink:       #f1ece4;
  --ink-2:     #c3b8aa;
  --ink-3:     #8f8474;
  --ink-4:     #645b4f;
  --bar-track: #322a23;
  --accent:     #c79a5b !important;   /* warm tan for dark */
  --accent-ink: #1c1305 !important;
}

/* square everything down */
[data-skin="bare"] .brand-mark,
[data-skin="bare"] .btn,
[data-skin="bare"] .icon-btn,
[data-skin="bare"] .nav-item,
[data-skin="bare"] .topnav-link,
[data-skin="bare"] select.input,
[data-skin="bare"] input.input,
[data-skin="bare"] .seg,
[data-skin="bare"] .seg button,
[data-skin="bare"] .panel,
[data-skin="bare"] .stat,
[data-skin="bare"] .feature-card,
[data-skin="bare"] .table-wrap,
[data-skin="bare"] .cmp-card,
[data-skin="bare"] .metric,
[data-skin="bare"] .rank,
[data-skin="bare"] .pager button { border-radius: 3px; }
[data-skin="bare"] .chip,
[data-skin="bare"] .badge,
[data-skin="bare"] .theme-toggle,
[data-skin="bare"] .theme-toggle button,
[data-skin="bare"] .nav-count { border-radius: 4px; }

/* flat cards / no shadow */
[data-skin="bare"] .stat,
[data-skin="bare"] .feature-card,
[data-skin="bare"] .table-wrap,
[data-skin="bare"] .cmp-card,
[data-skin="bare"] .panel { box-shadow: none; }
[data-skin="bare"] .feature-card:hover { transform: none; box-shadow: none; border-color: var(--accent-line); }

/* simple MDL-ish buttons: flat, uppercase, tracked */
[data-skin="bare"] .btn,
[data-skin="bare"] .seg button,
[data-skin="bare"] .topnav-link {
  text-transform: uppercase; letter-spacing: .045em; font-size: 12px; font-weight: 600;
}
[data-skin="bare"] .btn.primary { box-shadow: none; }
[data-skin="bare"] .seg button.on { box-shadow: none; border: 1px solid var(--line); }

/* relax the designery display tracking */
[data-skin="bare"] .hero h1,
[data-skin="bare"] .page-title,
[data-skin="bare"] .stat-value,
[data-skin="bare"] .drawer-title,
[data-skin="bare"] .cmp-rows .cval,
[data-skin="bare"] .fc-count { letter-spacing: -.2px; }

/* yellow data accents (recognizable highlight) */
[data-skin="bare"] .bar > i,
[data-skin="bare"] .cbar > i { background: #f2c019; }
[data-skin="bare"][data-theme="dark"] .bar > i,
[data-skin="bare"][data-theme="dark"] .cbar > i { background: #f0cf4e; }
[data-skin="bare"] .rank.r1 { background: #f2c019; color: #2c2300; }