/* Toolbin - appnest house style, muted-plum accent.
   Neutral tokens follow the family skeleton (APPNEST_TOOLKIT.md §1.1);
   only the --accent* trio is Toolbin's own. */

:root {
  --bg: #f6f7f9; --surface: #ffffff;
  --ink: #1c2430; --ink-soft: #5b6674; --ink-faint: #8d97a5;
  --accent: #7b4a75; --accent-ink: #ffffff; --accent-soft: #f2e8f1;
  --warn-bg: #fff7e6; --warn-border: #f0d9a8; --warn-ink: #7a5b16;
  --danger: #b3423a; --warm: #b06a12; --line: #e3e7ec;
  --input-bg: #fbfcfd; --input-focus-bg: #ffffff; --btn-primary-hover: #63395e;
  --chip-hover: #e7d6e5; --del-hover-bg: #fdf1f0; --summary-bg: #f3f5f7;
  --urgent-bg: #fdecea; --urgent-border: #f2b8b1; --urgent-ink: #8f2f27;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 4px 16px rgba(16,24,40,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"]  { color-scheme: dark; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg:#10151b; --surface:#1a222b; --ink:#e7ecf2; --ink-soft:#a6b1be; --ink-faint:#75808d;
    --accent:#c288ba; --accent-ink:#2b1028; --accent-soft:#372234;
    --warn-bg:#2b2410; --warn-border:#6a5620; --warn-ink:#eacc7b;
    --danger:#f07b72; --warm:#e2a352; --line:#2b3542;
    --input-bg:#141b22; --input-focus-bg:#10161c; --btn-primary-hover:#ad74a6;
    --chip-hover:#432a40; --del-hover-bg:#3a2320; --summary-bg:#141b22;
    --urgent-bg:#3a1d19; --urgent-border:#7a3830; --urgent-ink:#f3a99f;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  --bg:#10151b; --surface:#1a222b; --ink:#e7ecf2; --ink-soft:#a6b1be; --ink-faint:#75808d;
  --accent:#c288ba; --accent-ink:#2b1028; --accent-soft:#372234;
  --warn-bg:#2b2410; --warn-border:#6a5620; --warn-ink:#eacc7b;
  --danger:#f07b72; --warm:#e2a352; --line:#2b3542;
  --input-bg:#141b22; --input-focus-bg:#10161c; --btn-primary-hover:#ad74a6;
  --chip-hover:#432a40; --del-hover-bg:#3a2320; --summary-bg:#141b22;
  --urgent-bg:#3a1d19; --urgent-border:#7a3830; --urgent-ink:#f3a99f;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.35);
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 16px; line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.7rem; line-height: 1.25; margin: 0 0 10px; }
h2 { font-size: 1.15rem; margin: 0 0 8px; }
button { font-family: inherit; }
kbd {
  font-family: inherit; font-size: .72rem; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; background: var(--summary-bg);
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- topbar ---------- */
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 20px; background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 30;
}
.brand { display: flex; align-items: center; gap: 8px; color: var(--accent); flex: none; }
.brand:hover { text-decoration: none; }
.brand-name { font-weight: 700; font-size: 1.15rem; color: var(--ink); letter-spacing: -.01em; }
.tagline { color: var(--ink-faint); font-size: .85rem; }
.topbar-controls { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--line); border-radius: 10px;
  color: var(--ink-soft); padding: 7px; cursor: pointer;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--accent); }
.menu-btn { display: none; }

.search-btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 10px; cursor: pointer;
  background: var(--input-bg); color: var(--ink-faint);
  padding: 7px 12px; font-size: .85rem;
}
.search-btn:hover { border-color: var(--accent); color: var(--ink-soft); }

/* pill toggle - the family's signature control */
.unit-toggle {
  display: inline-flex; border: 1px solid var(--line); border-radius: 10px;
  overflow: hidden; background: var(--surface);
}
.unit-toggle button {
  border: 0; background: none; color: var(--ink-soft); cursor: pointer;
  padding: 6px 11px; font-size: .8rem; font-weight: 600;
  display: inline-flex; align-items: center; gap: 4px;
}
.unit-toggle button + button { border-left: 1px solid var(--line); }
.unit-toggle button.active { background: var(--accent); color: var(--accent-ink); }
.unit-toggle button:not(.active):hover { background: var(--accent-soft); color: var(--accent); }

/* ---------- layout: sidebar + main ---------- */
.layout {
  display: flex; gap: 28px; align-items: flex-start;
  max-width: 1320px; margin: 0 auto; padding: 0 20px;
}
.sidebar {
  width: 252px; flex: none;
  position: sticky; top: 57px;
  max-height: calc(100vh - 57px);
  overflow-y: auto; overscroll-behavior: contain;
  padding: 18px 4px 32px 0;
  scrollbar-width: thin;
}
.nav-group { margin-bottom: 18px; }
.nav-group-title {
  font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-faint); padding: 0 10px 6px;
}
.nav-link {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px; border-radius: 8px;
  color: var(--ink-soft); font-size: .875rem;
}
.nav-link:hover { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.nav-link.active { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.nav-link .soon { margin-left: auto; }

.soon {
  font-size: .6rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--ink-faint); border: 1px solid var(--line); border-radius: 6px;
  padding: 1px 5px; background: var(--summary-bg); flex: none;
}
.nav-link.active .soon { color: var(--accent-ink); border-color: transparent; background: rgba(255,255,255,.18); }

main {
  flex: 1; min-width: 0; max-width: 860px;
  margin: 0 auto; padding: 26px 0 48px;
}

/* ---------- home ---------- */
.hero { margin-bottom: 26px; }
.hero h1 { font-size: 1.9rem; }
.hero-sub { color: var(--ink-soft); margin: 0 0 12px; }
.privacy-badge {
  display: inline-flex; align-items: center; gap: 7px; margin: 0;
  color: var(--accent); background: var(--accent-soft);
  border-radius: 999px; padding: 6px 14px; font-size: .82rem; font-weight: 600;
}

.home-group { margin-bottom: 26px; }
.home-group h2 {
  font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 10px;
}
.chip-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(186px, 1fr)); gap: 8px;
}
.chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 9px 12px; font-size: .85rem; color: var(--ink);
  box-shadow: var(--shadow);
}
.chip:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); text-decoration: none; }
.chip .soon { margin-left: auto; }

/* ---------- tool view ---------- */
.crumbs { font-size: .82rem; color: var(--ink-faint); margin-bottom: 14px; display: flex; gap: 8px; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px;
}
.soon-card { text-align: center; padding: 40px 22px; }
.soon-card p { color: var(--ink-soft); max-width: 46ch; margin: 8px auto 20px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; border: 1px solid transparent; cursor: pointer;
  font-size: .92rem; font-weight: 600; padding: 9px 16px; text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--btn-primary-hover); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.btn-lg { padding: 12px 22px; font-size: 1rem; }

/* ---------- shared tool UI ---------- */
.tool-intro { color: var(--ink-soft); margin: 0 0 16px; max-width: 62ch; }
.tool-card { display: flex; flex-direction: column; gap: 8px; }
.tool-label { font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-faint); }
.tool-textarea {
  width: 100%; font: inherit; font-size: .95rem; resize: vertical;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--input-bg); color: var(--ink);
  padding: 10px 12px; outline: none; min-height: 96px;
}
.tool-textarea:focus { border-color: var(--accent); background: var(--input-focus-bg); }
.tool-textarea[readonly] { background: var(--summary-bg); }
.tool-stats { font-size: .78rem; color: var(--ink-faint); }
.tool-btnrow { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0; }
.btn-sm { padding: 6px 11px; font-size: .82rem; font-weight: 600; }
.btn-active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-active:hover { background: var(--btn-primary-hover); color: var(--accent-ink); }

#toolMount .card + .card { margin-top: 16px; }

/* stat tiles (counters, calculators) */
.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
  gap: 8px; margin: 4px 0;
}
.stat-tile {
  background: var(--summary-bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; text-align: center;
}
.stat-value { font-size: 1.35rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.stat-label { font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-faint); margin-top: 2px; }

/* keyword frequency rows */
.kw-list { display: flex; flex-direction: column; gap: 6px; }
.kw-row { display: flex; align-items: center; gap: 10px; font-size: .88rem; }
.kw-word { flex: 0 0 9em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kw-track { flex: 1; background: var(--summary-bg); border-radius: 6px; height: 10px; overflow: hidden; }
.kw-bar { height: 100%; background: var(--accent); border-radius: 6px; }
.kw-count { flex: none; color: var(--ink-faint); font-size: .78rem; min-width: 4.5em; text-align: right; }

/* platform character-limit rows */
.limit-list { display: flex; flex-direction: column; gap: 12px; }
.limit-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 4px; }
.limit-name { font-size: .88rem; font-weight: 600; }
.limit-count { font-size: .78rem; color: var(--ink-faint); }
.limit-count.over { color: var(--danger); font-weight: 600; }
.limit-track { background: var(--summary-bg); border-radius: 6px; height: 10px; overflow: hidden; }
.limit-bar { height: 100%; background: var(--accent); border-radius: 6px; transition: width .12s ease; }
.limit-track.over .limit-bar { background: var(--danger); }
@media (prefers-reduced-motion: reduce) { .limit-bar { transition: none; } }

/* ---------- banner & toast ---------- */
.banner {
  background: var(--warn-bg); border: 1px solid var(--warn-border); color: var(--warn-ink);
  border-radius: 10px; padding: 10px 14px; font-size: .88rem; margin: 12px 0;
}
.banner.urgent { background: var(--urgent-bg); border-color: var(--urgent-border); color: var(--urgent-ink); }
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: var(--ink); color: var(--bg); border-radius: 999px;
  padding: 9px 18px; font-size: .88rem; z-index: 60; box-shadow: var(--shadow);
}

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line); margin-top: 20px;
  padding: 22px 20px 30px; text-align: center;
  color: var(--ink-faint); font-size: .82rem;
}
.footer p { margin: 0 0 8px; }
.footer-links { display: flex; justify-content: center; gap: 10px; align-items: center; }
.footer-link {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--ink-soft); font-size: .82rem; text-decoration: underline;
}
.footer-link:hover { color: var(--accent); }
.more-tools {
  display: inline-flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 16px; margin-top: 10px; background: var(--surface);
}
.more-tools a { font-weight: 600; }

/* ---------- dialogs ---------- */
dialog {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink);
  box-shadow: var(--shadow); padding: 22px; max-width: min(92vw, 520px);
}
dialog::backdrop { background: rgba(10, 14, 20, .55); }
.privacy-dialog p { color: var(--ink-soft); font-size: .92rem; }
.privacy-dialog .btn { margin-top: 6px; }

.search-dialog {
  width: min(92vw, 560px); padding: 10px;
  margin-top: 10vh;
}
.search-dialog input {
  width: 100%; font: inherit; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--input-bg); color: var(--ink);
  padding: 11px 14px; outline: none;
}
.search-dialog input:focus { border-color: var(--accent); background: var(--input-focus-bg); }
.search-dialog ul { list-style: none; margin: 8px 0 0; padding: 0; max-height: 46vh; overflow-y: auto; }
.search-dialog li { border-radius: 8px; }
.search-dialog li a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; color: var(--ink); border-radius: 8px; font-size: .92rem;
}
.search-dialog li a:hover, .search-dialog li.sel a { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.search-cat { color: var(--ink-faint); font-size: .75rem; margin-left: auto; flex: none; }
.search-empty { color: var(--ink-faint); padding: 12px; font-size: .9rem; }

/* ---------- scrim (mobile drawer) ---------- */
.scrim { position: fixed; inset: 0; background: rgba(10,14,20,.45); z-index: 39; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .tagline { display: none; }
  .menu-btn { display: inline-flex; }
  .layout { display: block; padding: 0 16px; }
  .sidebar {
    position: fixed; top: 0; left: 0; z-index: 40;
    width: min(82vw, 300px); max-height: 100vh; height: 100vh;
    background: var(--surface); border-right: 1px solid var(--line);
    padding: 16px 12px 32px;
    visibility: hidden;
  }
  .sidebar.open { visibility: visible; }
  main { padding-top: 20px; }
  .search-btn span { display: none; }
  .hero h1 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .chip-grid { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 10px 12px; gap: 10px; }
}