/* MLX Model Explorer
   One idea carries the page: the memory budget. Everything else stays quiet. */

:root {
  --ground: #f2f4f6;
  --surface: #ffffff;
  --sunk: #e8ecf0;
  --ink: #17212b;
  --ink-2: #4a5866;
  --ink-3: #7b8895;
  --line: #d9dfe5;
  --focus: #2f5d8c;

  --weights: #2f5d8c;
  --kv: #7a5ab8;
  --overhead: #a3adb7;
  --limit: #17212b;

  --fit-comfortable: #2e7d4f;
  --fit-likely: #62802a;
  --fit-borderline: #b7791f;
  --fit-unlikely: #b23a2e;

  --display: ui-rounded, "SF Pro Rounded", "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  --text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --r-lg: 18px;
  --r-md: 10px;
  --r-sm: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #10161c;
    --surface: #17202a;
    --sunk: #1f2a35;
    --ink: #e8edf2;
    --ink-2: #b2bdc8;
    --ink-3: #82909d;
    --line: #2a3643;
    --focus: #8fb6e6;
    --weights: #4f86c6;
    --kv: #9c7fd6;
    --overhead: #5d6b78;
    --limit: #e8edf2;
    --fit-comfortable: #5fbf85;
    --fit-likely: #a3c45a;
    --fit-borderline: #e0a84a;
    --fit-unlikely: #ec7a6c;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--ground); color: var(--ink); font: 15px/1.55 var(--text); font-variant-numeric: tabular-nums; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 40%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
code, pre { font-family: var(--mono); font-size: 0.86em; }
:not(pre) > code { background: var(--sunk); padding: 1px 5px; border-radius: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 50; background: var(--surface); padding: 8px 12px; border-radius: var(--r-sm); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.shell { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: 20px; }

/* ---------------------------------------------------------------- header */
.top { border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--ground) 85%, transparent);
  position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 600 16px/1 var(--display); text-decoration: none; letter-spacing: -0.01em; }
.brand-mark { width: 26px; height: 26px; }
.fill-w { fill: var(--weights); } .fill-kv { fill: var(--kv); } .fill-limit { fill: var(--limit); }
.top nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.top nav a { text-decoration: none; color: var(--ink-2); }
.top nav a:hover { color: var(--ink); }

/* ---------------------------------------------------------------- hero: the memory budget */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: end; padding-block: 44px 28px; }
h1 { font: 600 clamp(30px, 4.2vw, 46px)/1.08 var(--display); letter-spacing: -0.025em; margin: 0 0 14px; max-width: 14ch; }
.lede { color: var(--ink-2); margin: 0; max-width: 46ch; font-size: 16px; }
.lede a { color: var(--ink); }

.budget { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px 22px 18px; }
.budget-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.budget-mac { font: 600 20px/1.2 var(--display); letter-spacing: -0.01em; }
.budget-usable { color: var(--ink-3); font-size: 14px; }
.budget-track { position: relative; height: 46px; border-radius: 12px; background:
  repeating-linear-gradient(90deg, transparent 0 calc(12.5% - 1px), color-mix(in srgb, var(--line) 70%, transparent) calc(12.5% - 1px) 12.5%),
  var(--sunk);
  display: flex; overflow: hidden; }
.seg { display: block; height: 100%; width: 0; transition: width 420ms cubic-bezier(.2, .8, .2, 1); }
.seg-w { background: var(--weights); }
.seg-kv { background: var(--kv); }
.seg-oh { background: var(--overhead); }
.budget-track.over .seg-oh { background: repeating-linear-gradient(135deg, var(--fit-unlikely) 0 6px, color-mix(in srgb, var(--fit-unlikely) 70%, transparent) 6px 12px); }
.limit { position: absolute; top: -6px; bottom: -6px; width: 3px; margin-left: -1.5px; background: var(--limit); border-radius: 2px;
  transition: left 420ms cubic-bezier(.2, .8, .2, 1); }
.budget-foot { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px 20px; flex-wrap: wrap; margin-top: 14px; }
.budget-model { margin: 0; font-size: 14px; color: var(--ink-2); max-width: 58ch; }
.budget-model strong { color: var(--ink); font-weight: 600; }
.legend { list-style: none; margin: 0; padding: 0; display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-3); }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; }
.sw-limit { width: 3px; height: 13px; border-radius: 2px; background: var(--limit); }

/* ---------------------------------------------------------------- workspace */
.workspace { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 32px; align-items: start; padding-bottom: 56px; }
.rail { position: sticky; top: 72px; max-height: calc(100vh - 88px); overflow-y: auto; padding-right: 6px; scrollbar-width: thin; }
.group { border: 0; margin: 0 0 22px; padding: 0; min-width: 0; }
.group legend { font: 600 14px/1.3 var(--display); padding: 0; margin-bottom: 9px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip, .chips > button { position: relative; display: inline-flex; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span, .chips > button {
  display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); font: 500 13px/1.2 var(--text);
  cursor: pointer; user-select: none; white-space: nowrap;
}
.chips.tight .chip span { padding-inline: 9px; }
.chip span small { color: var(--ink-3); font-size: 11.5px; font-weight: 400; }
.chip:hover span, .chips > button:hover { border-color: var(--ink-3); color: var(--ink); }
.chip input:checked + span, .chips > button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }
.chip input:checked + span small { color: color-mix(in srgb, var(--surface) 70%, transparent); }
.chip input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: 2px; }

.more-family { display: block; margin-top: 8px; }
.more-filters > summary { display: none; }
details.more-filters { border: 0; padding: 0; }
.more-filters > *:not(summary) { margin-top: 0; }
select, input[type="search"], input[type="text"], input[type="number"], textarea {
  width: 100%; font: 400 14px/1.3 var(--text); color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-sm); padding: 8px 10px; min-height: 36px;
}
textarea { resize: vertical; font-family: var(--mono); font-size: 13px; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 500; color: var(--ink-2); margin-bottom: 10px; }
.check { display: flex; align-items: flex-start; gap: 8px; font-size: 13.5px; color: var(--ink-2); cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--ink); }

button { font: inherit; color: inherit; }
.ghost, .solid { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 34px; padding: 6px 13px;
  border-radius: var(--r-sm); font: 500 13.5px/1.2 var(--text); cursor: pointer; }
.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }
.ghost:hover:not(:disabled) { border-color: var(--ink-3); background: var(--surface); }
.solid { background: var(--ink); border: 1px solid var(--ink); color: var(--surface); }
.solid:hover:not(:disabled) { background: color-mix(in srgb, var(--ink) 85%, var(--weights)); }
button:disabled { opacity: .45; cursor: default; }
.small { min-height: 30px; font-size: 12.5px; padding: 4px 10px; }
.wide { width: 100%; margin-top: 14px; }

.detect-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.hint, .fine { font-size: 12.5px; color: var(--ink-3); margin: 0; }
.hw { margin-top: 12px; padding: 12px; border-radius: var(--r-md); background: var(--sunk); }
.hw-estimate { margin: 0 0 8px; font: 600 14px/1.35 var(--display); }
.hw-facts { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 0 0 8px; font-size: 12.5px; }
.hw-facts dt { color: var(--ink-3); }
.hw-facts dd { margin: 0; }
.hw .fine { margin-bottom: 8px; }
progress { display: block; width: 100%; height: 6px; margin-top: 8px; accent-color: var(--weights); }
.note { font-size: 13px; color: var(--ink); background: color-mix(in srgb, var(--fit-borderline) 14%, var(--surface));
  border-radius: var(--r-sm); padding: 8px 10px; margin: 10px 0 0; }

/* ---------------------------------------------------------------- results */
.results-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px 20px; flex-wrap: wrap; margin-bottom: 10px; }
.results-head h2 { font: 600 22px/1.2 var(--display); margin: 0; letter-spacing: -0.01em; }
.summary { margin: 2px 0 0; color: var(--ink-3); font-size: 13.5px; }
.tabs { display: inline-flex; flex-wrap: wrap; gap: 2px; padding: 3px; border-radius: 10px; background: var(--sunk); }
.tabs button { border: 0; background: transparent; color: var(--ink-2); padding: 6px 11px; border-radius: 7px; font-size: 13px; cursor: pointer; min-height: 30px; }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(23, 33, 43, .12); font-weight: 600; }
#notices .note { margin: 0 0 8px; }

.rows { list-style: none; margin: 8px 0 0; padding: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.rows:empty { display: none; }
.row { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 6px 22px; padding: 14px 18px; border-top: 1px solid var(--line); }
.row:first-child { border-top: 0; }
.row.active { background: color-mix(in srgb, var(--weights) 5%, var(--surface)); }
.row-main { min-width: 0; }
.row-title { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.row-name { background: none; border: 0; padding: 0; margin: 0; cursor: pointer; text-align: left; font: 600 15.5px/1.3 var(--text);
  color: var(--ink); word-break: break-word; }
.row-name:hover { text-decoration: underline; text-underline-offset: 3px; }
.row-org { color: var(--ink-3); font-weight: 400; }
.facts { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 5px 0 0; font-size: 13px; color: var(--ink-2); }
.facts .tag { color: var(--ink); font-weight: 500; }
.facts .warn { color: var(--fit-borderline); }
.why { margin: 7px 0 0; font-size: 13px; color: var(--ink-3); max-width: 72ch; }
.row-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-top: 8px; font-size: 13px; }
.row-actions .check { font-size: 13px; align-items: center; }
.row-actions .check input { margin-top: 0; }
.row-actions a, .linkish { color: var(--ink-2); }
.linkish { background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-decoration-color: color-mix(in srgb, currentColor 40%, transparent); text-underline-offset: 3px; font-size: 13px; }

.row-fit { display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.fit-line { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; font-size: 13px; }
.fit-gb { font: 600 17px/1 var(--display); color: var(--ink); }
.fit-label { font-weight: 600; font-size: 12.5px; }
.fit-Comfortable { color: var(--fit-comfortable); }
.fit-Likely { color: var(--fit-likely); }
.fit-Borderline { color: var(--fit-borderline); }
.fit-Unlikely { color: var(--fit-unlikely); }
.fit-none { color: var(--ink-3); font-weight: 400; }
.score { font-size: 12px; color: var(--ink-3); }

.mini { position: relative; display: flex; height: 10px; border-radius: 5px; background: var(--sunk); overflow: visible; }
.mini .seg:first-child { border-radius: 5px 0 0 5px; }
.mini .seg { transition: none; }
.mini .limit { top: -3px; bottom: -3px; width: 2px; margin-left: -1px; transition: none; }
.mini.over .seg-oh { background: var(--fit-unlikely); }

/* ---------------------------------------------------------------- prose sections */
.prose-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; padding-block: 44px 20px; border-top: 1px solid var(--line); }
.prose h2 { font: 600 20px/1.25 var(--display); margin: 0 0 10px; letter-spacing: -0.01em; }
.prose p, .prose li { font-size: 14px; color: var(--ink-2); max-width: 70ch; }
.prose ul { padding-left: 18px; }
.prose strong { color: var(--ink); }
details { border-top: 1px solid var(--line); padding: 10px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; font-size: 14px; list-style: none; display: flex; justify-content: space-between; gap: 10px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--ink-3); font-weight: 400; }
details[open] summary::after { content: "–"; }
details > *:not(summary) { margin-top: 8px; }
pre.cmd { background: var(--ink); color: var(--ground); padding: 14px 16px; border-radius: var(--r-md); overflow-x: auto; line-height: 1.6; margin: 10px 0; }
@media (prefers-color-scheme: dark) { pre.cmd { background: #0a0f14; color: var(--ink); border: 1px solid var(--line); } }
.actions-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 8px; font-size: 13.5px; }

.foot { display: flex; flex-wrap: wrap; gap: 6px 22px; padding-block: 18px 90px; font-size: 13px; color: var(--ink-3); border-top: 1px solid var(--line); }

/* ---------------------------------------------------------------- compare tray */
.tray { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 30; display: flex; align-items: center; gap: 10px;
  padding: 8px 8px 8px 16px; border-radius: 12px; background: var(--ink); color: var(--surface); box-shadow: 0 8px 28px rgba(10, 20, 30, .28);
  max-width: calc(100% - 32px); font-size: 14px; }
.tray .ghost { color: var(--surface); border-color: color-mix(in srgb, var(--surface) 30%, transparent); }
.tray .ghost:hover { background: transparent; border-color: var(--surface); }
.tray .solid { background: var(--surface); color: var(--ink); border-color: var(--surface); }

/* ---------------------------------------------------------------- dialogs */
dialog { border: 0; padding: 0; color: var(--ink); background: var(--surface); }
dialog::backdrop { background: rgba(12, 18, 24, .45); }
dialog.sheet { margin: 0 0 0 auto; width: min(640px, 100vw); height: 100vh; max-height: 100vh; border-left: 1px solid var(--line); }
dialog.sheet[open] { animation: sheet-in 260ms cubic-bezier(.2, .8, .2, 1); }
@keyframes sheet-in { from { transform: translateX(24px); opacity: .6; } to { transform: none; opacity: 1; } }
dialog.modal { width: min(980px, calc(100vw - 24px)); max-height: calc(100vh - 48px); border-radius: var(--r-lg); border: 1px solid var(--line); }
.sheet-head { position: sticky; top: 0; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 20px; background: var(--surface); border-bottom: 1px solid var(--line); }
.sheet-head h2 { margin: 0; font: 600 17px/1.3 var(--display); word-break: break-word; }
.close { border: 1px solid var(--line); background: transparent; width: 34px; height: 34px; border-radius: 8px; font-size: 20px; line-height: 1; cursor: pointer; flex: none; }
.sheet-body { padding: 18px 20px 28px; }
.sheet-body h3 { font: 600 15px/1.3 var(--display); margin: 24px 0 10px; }
.sheet-body h4 { font-size: 13.5px; margin: 14px 0 8px; }
.sheet-lede { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13.5px; color: var(--ink-2); margin: 0 0 12px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; font-size: 13.5px; margin: 0; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; word-break: break-word; }
.why-list { margin: 0; padding-left: 18px; font-size: 13.5px; color: var(--ink-2); }
.why-list li + li { margin-top: 4px; }

.ctx-bars { display: grid; grid-template-columns: 44px minmax(0, 1fr) 64px 92px; gap: 9px 12px; align-items: center; font-size: 13px; }
.ctx-bars .ctx { color: var(--ink-3); }
.ctx-bars .cur { color: var(--ink); font-weight: 600; }
.ctx-bars .gb { text-align: right; font-weight: 500; }
.ctx-bars .mini { height: 12px; }
.scale-note { font-size: 12.5px; color: var(--ink-3); margin: 10px 0 0; }

.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 12px; border-top: 1px solid var(--line); vertical-align: top; }
thead th { border-top: 0; color: var(--ink-3); font-weight: 500; white-space: nowrap; background: var(--sunk); }
tbody th { color: var(--ink-3); font-weight: 500; white-space: nowrap; }
td.num { text-align: right; }
.compare-bar td .mini { min-width: 140px; }

.feedback { margin-top: 26px; padding-top: 4px; border-top: 1px solid var(--line); }
.fb-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 12px; margin-top: 12px; }
.feedback .chips { margin-bottom: 4px; }

/* ---------------------------------------------------------------- stats page */
.stats-hero { padding-block: 40px 24px; }
.stats-hero h1 { max-width: 20ch; }
.totals { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; margin-bottom: 28px; }
.total { padding: 14px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-right: -1px; margin-bottom: -1px; }
.total b { display: block; font: 600 26px/1.1 var(--display); }
.total span { font-size: 12.5px; color: var(--ink-3); }
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px 40px; padding-bottom: 40px; }
.chart h2 { font: 600 16px/1.3 var(--display); margin: 0 0 10px; }
.bars { display: grid; gap: 6px; }
.bar { display: grid; grid-template-columns: minmax(80px, 38%) minmax(0, 1fr) 78px; gap: 10px; align-items: center; font-size: 13px; }
.bar .k { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar .track { height: 10px; border-radius: 5px; background: var(--sunk); overflow: hidden; }
.bar .fill { height: 100%; background: var(--weights); border-radius: 5px; }
.bar .n { text-align: right; color: var(--ink-3); }
.qshare { display: flex; height: 36px; border-radius: 10px; overflow: hidden; background: var(--sunk); margin: 6px 0 8px; }
.qshare span { display: flex; align-items: center; justify-content: center; font-size: 12px; color: #fff; min-width: 0; overflow: hidden; white-space: nowrap; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1080px) {
  .prose-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 24px; padding-top: 28px; }
  h1 { max-width: none; }
  .workspace { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .rail { position: static; max-height: none; overflow: visible; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); }
  .group { margin-bottom: 16px; }
  .more-filters { border-top: 1px solid var(--line); padding-top: 10px; }
  .more-filters > summary { display: flex; margin-bottom: 4px; }
  .more-filters[open] > summary { margin-bottom: 14px; }
}
@media (max-width: 600px) {
  .shell { padding-inline: 16px; }
  .top nav { gap: 12px; font-size: 13px; }
  .budget { padding: 16px; }
  .budget-track { height: 38px; }
  .row { grid-template-columns: 1fr; padding: 14px; }
  .row-fit { order: -1; }
  .ctx-bars { grid-template-columns: 40px minmax(0, 1fr) 58px; }
  .ctx-bars .fitc { grid-column: 2 / -1; margin-top: -6px; }
  .fb-grid { grid-template-columns: 1fr; }
  .tabs { width: 100%; }
}