:root {
  color-scheme: light dark;
  --paper: #f2eee5;
  --paper-2: #e8e1d4;
  --panel: #fffdf8;
  --ink: #211f1b;
  --muted: #6e675c;
  --line: #d7cdbc;
  --accent: #a84329;
  --accent-hover: #87331f;
  --teal: #146c64;
  --shadow: 0 18px 60px rgba(64, 48, 30, .1);
  --radius: 12px;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--paper); }
body { min-height: 100vh; margin: 0; color: var(--ink); background: var(--paper); font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
button, input, textarea { font: inherit; }
a { color: inherit; }
button { color: inherit; }
:where(a, button, input, textarea, summary):focus-visible { outline: 3px solid #d18a3e; outline-offset: 3px; }

.skip { position: fixed; left: 16px; top: -80px; z-index: 20; padding: 8px 12px; background: var(--ink); color: var(--panel); border-radius: 6px; }
.skip:focus { top: 12px; }
.topbar { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 24px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 88%, transparent); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; font: 700 18px/1 Georgia, serif; letter-spacing: -.02em; }
.brand img { border-radius: 8px; }
.top-actions { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.privacy-chip { display: inline-flex; align-items: center; gap: 7px; color: var(--teal); font-weight: 650; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal) 13%, transparent); }
.quiet-link { color: var(--muted); }
.support-link { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; background: var(--panel); }

.shell { width: min(1440px, 100%); min-height: calc(100vh - 132px); margin: 0 auto; display: grid; grid-template-columns: 270px minmax(0, 1fr); }
.sidebar { min-width: 0; padding: 26px 18px 28px 24px; border-right: 1px solid var(--line); }
.search-label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 7px; color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
kbd { padding: 1px 5px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; background: var(--panel); color: var(--muted); font: 11px/1.4 ui-monospace, Consolas, monospace; }
.search-input { width: 100%; height: 40px; padding: 0 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); }
#tool-nav { margin-top: 22px; }
.nav-group { margin-bottom: 20px; }
.nav-group h2 { margin: 0 8px 6px; color: var(--muted); font-size: 10px; letter-spacing: .11em; text-transform: uppercase; }
.nav-button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 7px 8px; border: 0; border-radius: 6px; background: transparent; text-align: left; cursor: pointer; }
.nav-button:hover { background: color-mix(in srgb, var(--ink) 5%, transparent); }
.nav-button.active { background: var(--ink); color: var(--panel); }
.nav-button .star { color: #b36c1e; }
.sidebar-note { margin: 28px 8px 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

main { min-width: 0; padding: clamp(28px, 5vw, 72px); }
.welcome { max-width: 1040px; margin: 0 auto; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font: 750 11px/1.3 ui-monospace, Consolas, monospace; letter-spacing: .09em; text-transform: uppercase; }
h1 { max-width: 820px; margin: 0; font: 700 clamp(37px, 6vw, 72px)/.98 Georgia, "Times New Roman", serif; letter-spacing: -.045em; }
.lede { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: clamp(17px, 2.2vw, 21px); line-height: 1.55; }
.welcome-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }
.primary, .secondary { min-height: 42px; padding: 9px 15px; border-radius: 7px; font-weight: 720; cursor: pointer; }
.primary { border: 1px solid var(--accent); background: var(--accent); color: #fffaf2; }
.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.secondary { border: 1px solid var(--line); background: var(--panel); }
.proof-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 26px; color: var(--muted); font-size: 12px; }
.proof-row span::before { content: ""; display: inline-block; width: 4px; height: 4px; margin-right: 7px; border-radius: 50%; background: var(--teal); vertical-align: 2px; }
.tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 56px; }
.tool-card { min-height: 145px; padding: 17px; border: 1px solid var(--line); border-radius: var(--radius); background: color-mix(in srgb, var(--panel) 82%, transparent); cursor: pointer; text-align: left; transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease; }
.tool-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: 0 10px 30px rgba(64, 48, 30, .08); }
.tool-card small { color: var(--accent); font: 700 10px/1.3 ui-monospace, Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.tool-card strong { display: block; margin-top: 12px; font: 700 19px/1.15 Georgia, serif; }
.tool-card span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.empty-state { margin: 38px 0 0; padding: 22px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); text-align: center; }
.static-directory { margin-top: 38px; padding-top: 24px; border-top: 1px solid var(--line); }
.static-directory h2 { font: 700 22px/1.2 Georgia, serif; }
.static-links { display: flex; flex-wrap: wrap; gap: 8px; }
.static-links a { padding: 6px 9px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); text-decoration: none; }

.tool-view { max-width: 1120px; margin: 0 auto; }
.tool-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.tool-heading h1 { font-size: clamp(34px, 5vw, 58px); }
.tool-description { max-width: 700px; margin: 14px 0 0; color: var(--muted); font-size: 17px; }
.icon-button { flex: 0 0 auto; padding: 8px 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--panel); cursor: pointer; }
.icon-button[aria-pressed="true"] { border-color: #b36c1e; color: #8b5315; }
.workbench { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 36px; }
.pane { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); box-shadow: var(--shadow); }
.pane-head { min-height: 42px; display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; border-bottom: 1px solid var(--line); }
.pane-head label { font-weight: 750; font-size: 12px; }
.text-button { padding: 4px 7px; border: 0; background: transparent; color: var(--accent); font-size: 12px; cursor: pointer; }
textarea { display: block; width: 100%; min-height: 430px; resize: vertical; padding: 15px; border: 0; outline: 0; background: transparent; color: var(--ink); font: 13px/1.55 ui-monospace, "Cascadia Mono", Consolas, monospace; tab-size: 2; }
#output { background: color-mix(in srgb, var(--paper) 45%, var(--panel)); }
.runbar { display: flex; align-items: center; gap: 9px; margin-top: 12px; }
.runbar .primary { display: inline-flex; align-items: center; gap: 9px; }
.runbar .primary kbd { color: inherit; border-color: rgba(255,255,255,.35); background: rgba(255,255,255,.08); }
#status { margin: 0 0 0 auto; color: var(--muted); font-size: 12px; }
.tool-note { margin-top: 24px; padding: 15px 17px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); }
.tool-note summary { color: var(--ink); font-weight: 700; cursor: pointer; }
.tool-note p:last-child { margin-bottom: 0; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 22px 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
[hidden] { display: none !important; }

@media (prefers-color-scheme: dark) {
  :root { --paper:#171713; --paper-2:#211f19; --panel:#24221c; --ink:#f3ede1; --muted:#ada596; --line:#3d392f; --accent:#dc7656; --accent-hover:#ea8b6d; --teal:#68b9ad; --shadow:0 18px 60px rgba(0,0,0,.25); }
  .primary { color: #1d120e; }
  .nav-button.active { color: #191713; }
}

@media (max-width: 920px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; width: 100%; overflow: hidden; border-right: 0; border-bottom: 1px solid var(--line); padding: 18px 20px; }
  #tool-nav { display: flex; max-width: 100%; gap: 7px; margin-top: 12px; overflow-x: auto; padding-bottom: 5px; }
  .nav-group { display: contents; }
  .nav-group h2 { display: none; }
  .nav-button { width: auto; flex: 0 0 auto; border: 1px solid var(--line); background: var(--panel); }
  .sidebar-note { display: none; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 660px) {
  .topbar { padding: 11px 15px; }
  .privacy-chip, .quiet-link { display: none; }
  .support-link { padding: 6px 9px; }
  main { padding: 34px 16px 46px; }
  .tool-grid, .workbench { grid-template-columns: 1fr; }
  .tool-grid { margin-top: 38px; }
  .tool-heading { display: block; }
  .icon-button { margin-top: 18px; }
  textarea { min-height: 300px; }
  .runbar { flex-wrap: wrap; }
  #status { width: 100%; margin: 3px 0 0; }
  footer { display: grid; padding: 18px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}