/* ==========================================================================
   Workbench — a small toolkit of calculators
   Design system: drafting-table / instrument-panel aesthetic
   ========================================================================== */

:root {
  --paper: #eef1f3;
  --paper-dim: #e2e7eb;
  --ink: #1b2430;
  --ink-soft: #4a5568;
  --line: #b8c4ce;
  --line-soft: #d6dee4;
  --brass: #c08a3e;
  --brass-dark: #9c6f2e;
  --signal: #2f6f5e;
  --white: #ffffff;

  --font-display: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius: 3px;
  --shadow-panel: 0 1px 0 rgba(255,255,255,0.6) inset, 0 1px 2px rgba(27,36,48,0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    linear-gradient(rgba(184,196,206,0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,196,206,0.35) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px, 28px 28px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brass-dark); }
a:hover { color: var(--brass); }

/* Focus visibility, kept even though we style controls heavily */
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

header.site-head {
  border-bottom: 1px solid var(--line);
  background: rgba(238,241,243,0.9);
  backdrop-filter: blur(4px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-head .bar {
  max-width: 880px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}

.brand .mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--white);
  background: var(--ink);
  padding: 3px 6px;
  border-radius: 2px;
  letter-spacing: 0.02em;
}

.brand .name {
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}

nav.crumbs {
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

nav.crumbs a { color: var(--ink-soft); text-decoration: none; }
nav.crumbs a:hover { color: var(--brass-dark); }

/* ---------- Hero (hub page) ---------- */

.hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}

.hero .eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1.08;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  max-width: 14ch;
}

.hero p.lede {
  max-width: 52ch;
  color: var(--ink-soft);
  font-size: 17px;
  margin: 0;
}

/* ---------- Instrument grid (hub) ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 40px 0 64px;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
}

.tool-card {
  display: block;
  text-decoration: none;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-panel);
  transition: border-color 120ms ease, transform 120ms ease;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--line);
  transition: background 120ms ease;
}

.tool-card:hover {
  border-color: var(--brass);
  transform: translateY(-1px);
}

.tool-card:hover::before { background: var(--brass); }

.tool-card .id {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}

.tool-card h2 {
  font-size: 19px;
  margin: 6px 0 6px;
  letter-spacing: -0.01em;
}

.tool-card p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---------- Tool page layout ---------- */

.tool-head {
  padding: 40px 0 8px;
}

.tool-head .eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 10px;
}

.tool-head h1 {
  font-size: clamp(26px, 4vw, 34px);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.tool-head p.dek {
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0;
}

.panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  padding: 28px;
  margin: 28px 0;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px;
  margin-bottom: 4px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.field input[type="number"],
.field input[type="text"],
.field select {
  font-family: var(--font-display);
  font-size: 17px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper-dim);
  color: var(--ink);
}

.field input:focus,
.field select:focus {
  background: var(--white);
}

/* Readout — the signature element, reused on every tool page */

.readout {
  margin-top: 22px;
  border-radius: 2px;
  background: var(--ink);
  padding: 20px 22px;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.35);
  position: relative;
}

.readout::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 2px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.025) 0px,
    rgba(255,255,255,0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
}

.readout .r-label {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7fa89a;
  margin: 0 0 6px;
}

.readout .r-value {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 6vw, 40px);
  font-weight: 700;
  color: #8fe3c7;
  text-shadow: 0 0 12px rgba(143,227,199,0.35);
  letter-spacing: 0.01em;
  margin: 0;
}

.readout .r-sub {
  font-family: var(--font-display);
  font-size: 12px;
  color: #6b8f83;
  margin: 8px 0 0;
}

.note {
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 16px;
}

/* ---------- Related tools ---------- */

.related {
  padding: 8px 0 56px;
}

.related h2 {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 12px;
}

.related .links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related .links a {
  text-decoration: none;
  font-size: 14px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 8px 12px;
  background: var(--white);
}

.related .links a:hover { border-color: var(--brass); }

/* ---------- Static pages (about / privacy) ---------- */

.prose { padding: 40px 0 64px; max-width: 68ch; }
.prose h1 { font-size: 30px; letter-spacing: -0.01em; margin-bottom: 18px; }
.prose h2 { font-size: 19px; margin-top: 34px; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 20px; }

/* ---------- Cookie consent banner ---------- */

#wb-consent-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 100;
  max-width: 720px;
  margin: 0 auto;
  background: var(--ink);
  border-radius: 3px;
  box-shadow: 0 8px 24px rgba(27,36,48,0.35);
  transform: translateY(16px);
  opacity: 0;
  transition: transform 200ms ease, opacity 200ms ease;
}

#wb-consent-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.wb-consent-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  flex-wrap: wrap;
}

.wb-consent-text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 13px;
  color: #c7d0d8;
  line-height: 1.5;
}

.wb-consent-text a {
  color: #8fe3c7;
}

.wb-consent-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.wb-consent-btn {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 9px 14px;
  border-radius: 2px;
  cursor: pointer;
  border: 1px solid transparent;
}

.wb-consent-decline {
  background: transparent;
  border-color: #4a5568;
  color: #c7d0d8;
}

.wb-consent-decline:hover {
  border-color: #6b7686;
}

.wb-consent-accept {
  background: var(--brass);
  color: var(--ink);
  font-weight: 700;
}

.wb-consent-accept:hover {
  background: #cf9a52;
}

@media (max-width: 480px) {
  .wb-consent-actions { width: 100%; }
  .wb-consent-btn { flex: 1; }
}

/* ---------- Footer ---------- */

footer.site-foot {
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
}

footer.site-foot .bar {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--ink-soft);
}

footer.site-foot nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 16px;
}

footer.site-foot nav a:first-child { margin-left: 0; }
footer.site-foot nav a:hover { color: var(--brass-dark); }