/* PawHost.tools — shared design tokens & layout */

:root {
  /* Light theme (default) */
  --bg: oklch(0.985 0.004 80);
  --bg-elev: oklch(1 0 0);
  --bg-soft: oklch(0.965 0.006 80);
  --fg: oklch(0.22 0.02 260);
  --fg-muted: oklch(0.5 0.02 260);
  --fg-subtle: oklch(0.65 0.015 260);
  --border: oklch(0.9 0.008 260);
  --border-strong: oklch(0.82 0.012 260);
  --accent: oklch(0.68 0.16 38);          /* warm coral/paw */
  --accent-strong: oklch(0.6 0.18 35);
  --accent-soft: oklch(0.96 0.04 50);
  --accent-fg: oklch(0.99 0 0);
  --ok: oklch(0.65 0.14 155);
  --warn: oklch(0.72 0.16 75);
  --err: oklch(0.6 0.2 25);
  --info: oklch(0.62 0.13 235);

  --radius: 10px;
  --radius-lg: 16px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px oklch(0.2 0 0 / 0.04), 0 1px 1px oklch(0.2 0 0 / 0.03);
  --shadow: 0 4px 12px oklch(0.2 0 0 / 0.06), 0 2px 4px oklch(0.2 0 0 / 0.04);
  --shadow-lg: 0 16px 40px oklch(0.2 0 0 / 0.1), 0 6px 16px oklch(0.2 0 0 / 0.06);

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --bg: oklch(0.16 0.01 260);
  --bg-elev: oklch(0.2 0.012 260);
  --bg-soft: oklch(0.22 0.013 260);
  --fg: oklch(0.95 0.005 80);
  --fg-muted: oklch(0.7 0.012 260);
  --fg-subtle: oklch(0.55 0.012 260);
  --border: oklch(0.28 0.013 260);
  --border-strong: oklch(0.38 0.015 260);
  --accent: oklch(0.74 0.16 42);
  --accent-strong: oklch(0.8 0.17 45);
  --accent-soft: oklch(0.28 0.06 40);
  --accent-fg: oklch(0.16 0.01 260);
  --ok: oklch(0.74 0.15 155);
  --warn: oklch(0.78 0.16 80);
  --err: oklch(0.7 0.2 25);
  --info: oklch(0.72 0.14 235);
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow: 0 4px 12px oklch(0 0 0 / 0.4), 0 2px 4px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: 32px; letter-spacing: -0.02em; }
h2 { font-size: 22px; }
h3 { font-size: 17px; }
p { margin: 0; }

code, pre, .mono { font-family: var(--font-mono); }

/* Layout */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .row {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  display: grid; place-items: center;
  font-size: 14px;
  box-shadow: inset 0 0 0 1px color-mix(in oklab, black 20%, transparent);
}
.brand-mark svg { width: 18px; height: 18px; }
.brand .dot { color: var(--accent); }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--fg-muted);
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 500;
}
.nav a:hover { color: var(--fg); background: var(--bg-soft); text-decoration: none; }
.nav a.active { color: var(--fg); background: var(--bg-soft); }

.theme-toggle, .icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  width: 36px; height: 36px;
  border-radius: 8px;
  display: grid; place-items: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.theme-toggle:hover, .icon-btn:hover { border-color: var(--border-strong); background: var(--bg-soft); }
.theme-toggle svg, .icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: block; }
[data-theme="dark"] .theme-toggle .moon { display: none; }

/* Main */
main { flex: 1; padding: 40px 0 80px; }

.page-head { margin-bottom: 32px; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 8px;
}
.lead { color: var(--fg-muted); font-size: 16px; max-width: 720px; margin-top: 6px; }

/* Cards */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card-tight { padding: 16px; border-radius: var(--radius); }

/* Forms */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field label, .label {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  display: flex; align-items: center; gap: 6px;
}
.field .hint { font-size: 12px; color: var(--fg-subtle); }

input[type="text"], input[type="number"], input[type="url"], input[type="password"], select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--fg);
  font-family: inherit;
  font-size: 14px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent);
}
textarea { font-family: var(--font-mono); resize: vertical; min-height: 140px; }

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px; font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-soft); border-color: var(--border-strong); }
.btn-soft { background: var(--bg-soft); color: var(--fg); }
.btn-soft:hover { background: color-mix(in oklab, var(--bg-soft) 70%, var(--accent) 10%); }
.btn-sm { padding: 6px 10px; font-size: 13px; }

/* Pills / badges */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 500;
  background: var(--bg-soft); color: var(--fg-muted);
  border: 1px solid var(--border);
}
.pill.ok { color: var(--ok); border-color: color-mix(in oklab, var(--ok) 30%, var(--border)); background: color-mix(in oklab, var(--ok) 8%, var(--bg-elev)); }
.pill.warn { color: var(--warn); border-color: color-mix(in oklab, var(--warn) 30%, var(--border)); background: color-mix(in oklab, var(--warn) 10%, var(--bg-elev)); }
.pill.err { color: var(--err); border-color: color-mix(in oklab, var(--err) 30%, var(--border)); background: color-mix(in oklab, var(--err) 10%, var(--bg-elev)); }
.pill.info { color: var(--info); border-color: color-mix(in oklab, var(--info) 30%, var(--border)); background: color-mix(in oklab, var(--info) 10%, var(--bg-elev)); }
.pill.accent { color: var(--accent-strong); border-color: color-mix(in oklab, var(--accent) 35%, var(--border)); background: color-mix(in oklab, var(--accent) 10%, var(--bg-elev)); }

.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  background: var(--bg-soft);
  color: var(--fg-muted);
}

/* Stat */
.stat {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.stat .stat-label { font-size: 12px; color: var(--fg-subtle); text-transform: uppercase; letter-spacing: 0.05em; font-family: var(--font-mono); }
.stat .stat-value { font-size: 28px; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }
.stat .stat-sub { font-size: 12px; color: var(--fg-muted); }
.stat.accent { border-color: color-mix(in oklab, var(--accent) 40%, var(--border)); background: color-mix(in oklab, var(--accent) 6%, var(--bg-elev)); }
.stat.accent .stat-value { color: var(--accent-strong); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-size: 13px;
  color: var(--fg-subtle);
}
.site-footer .row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.site-footer a { color: var(--fg-muted); }

/* Tool layout */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 980px) {
  .tool-grid.split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .tool-grid.split-narrow { grid-template-columns: minmax(0, 360px) minmax(0, 1fr); }
}

.section-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  margin-bottom: 12px;
}

.divider { height: 1px; background: var(--border); margin: 16px 0; }

/* Bar */
.bar {
  height: 8px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
  display: flex;
}
.bar > span { height: 100%; display: block; }

/* Notice */
.notice {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  background: color-mix(in oklab, var(--info) 10%, var(--bg-elev));
  border: 1px solid color-mix(in oklab, var(--info) 30%, var(--border));
  color: var(--fg);
}
.notice.warn { background: color-mix(in oklab, var(--warn) 12%, var(--bg-elev)); border-color: color-mix(in oklab, var(--warn) 35%, var(--border)); }
.notice.err  { background: color-mix(in oklab, var(--err)  12%, var(--bg-elev)); border-color: color-mix(in oklab, var(--err)  35%, var(--border)); }
.notice.ok   { background: color-mix(in oklab, var(--ok)   10%, var(--bg-elev)); border-color: color-mix(in oklab, var(--ok)   30%, var(--border)); }
.notice .icon { flex: 0 0 auto; margin-top: 1px; }

/* Tables */
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.data th, table.data td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
table.data th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-subtle);
  font-weight: 500;
  font-family: var(--font-mono);
}
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: var(--bg-soft); }

/* Helpers */
.row { display: flex; align-items: center; }
.col { display: flex; flex-direction: column; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; } .gap-24 { gap: 24px; }
.mb-8 { margin-bottom: 8px; } .mb-12 { margin-bottom: 12px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
.mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.flex-1 { flex: 1; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-mono { font-family: var(--font-mono); }
.text-muted { color: var(--fg-muted); }
.text-subtle { color: var(--fg-subtle); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.tabular { font-variant-numeric: tabular-nums; }

/* Tabs */
.tabs {
  display: inline-flex;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
}
.tabs button {
  background: transparent;
  border: 0;
  color: var(--fg-muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
}
.tabs button[aria-selected="true"] {
  background: var(--bg-elev);
  color: var(--fg);
  box-shadow: var(--shadow-sm);
}

/* Tooltip */
.tip {
  position: relative;
  display: inline-flex;
  width: 14px; height: 14px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--fg-subtle);
  font-size: 10px;
  align-items: center; justify-content: center;
  cursor: help;
  border: 1px solid var(--border);
}
.tip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--fg);
  color: var(--bg);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  max-width: 280px;
  white-space: normal;
  width: max-content;
  z-index: 100;
  box-shadow: var(--shadow);
}

/* Range */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  background: transparent;
  height: 24px;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px; background: var(--border-strong); border-radius: 2px;
}
input[type="range"]::-moz-range-track {
  height: 4px; background: var(--border-strong); border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 999px;
  background: var(--accent);
  border: 2px solid var(--bg-elev);
  margin-top: -7px;
  box-shadow: 0 0 0 1px var(--border-strong);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 999px;
  background: var(--accent);
  border: 2px solid var(--bg-elev);
  cursor: pointer;
}

/* Checkbox / radio */
.check {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px;
  color: var(--fg);
  cursor: pointer;
}
.check input { width: 16px; height: 16px; accent-color: var(--accent); }

/* Donut */
.donut-wrap { position: relative; display: inline-block; }
.donut-center {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  text-align: center;
}

/* Mobile adjustments */
@media (max-width: 720px) {
  h1 { font-size: 26px; }
  .nav a { display: none; }
  .nav a.always { display: inline-flex; }
  main { padding: 24px 0 60px; }
  .card { padding: 16px; }
}