/* ===========================================================
   DonaldsonRF.com — design tokens
   Dark theme by default, light theme opt-in via data-theme.
   =========================================================== */

:root {
  --color-bg: #0d1526;
  --color-bg-card: #141d33;
  --color-bg-input: #0f1729;
  --color-ink: #ffffff;
  --color-ink-soft: #8b96b3;
  --color-ink-faint: #7d8baa;
  --color-primary: #3aa9ff;
  --color-primary-dark: #2489e0;
  --color-accent: #12b886;
  --color-accent-text: #12b886;
  --color-pill: #ef4d6a;
  --color-border: rgba(255, 255, 255, 0.1);
  --color-btn-bg: #1d6fb3;
  --color-btn-bg-hover: #164b7a;
  --color-btn-buy-text: #0d1526;

  --font-body: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 10px;
  --max-width: 1040px;
}

:root[data-theme="light"] {
  --color-bg: #f5f7fb;
  --color-bg-card: #ffffff;
  --color-bg-input: #eef1f7;
  --color-ink: #17233d;
  --color-ink-soft: #4c5871;
  --color-ink-faint: #5c6880;
  --color-primary: #2569d6;
  --color-primary-dark: #1a52ac;
  --color-accent: #0e9668;
  --color-accent-text: #0c8259;
  --color-pill: #d93a56;
  --color-border: rgba(23, 35, 61, 0.12);
  --color-btn-bg: #1a52ac;
  --color-btn-bg-hover: #123a7d;
}

/* ---------- Theme toggle ---------- */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-ink-soft);
  cursor: pointer;
  flex-shrink: 0;
  overflow: hidden;
  padding: 0;
}
.theme-toggle:hover { color: var(--color-ink); border-color: var(--color-primary); }
.theme-toggle svg { width: 18px; height: 18px; flex-shrink: 0; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink-soft);
  background: var(--color-bg);
  line-height: 1.55;
  font-size: 16px;
}

h1, h2, h3, h4 { color: var(--color-ink); }

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

img, svg { max-width: 100%; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

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

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-ink);
  flex-shrink: 0;
}

.brand svg, .brand img { flex-shrink: 0; }

.nav-home {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
  font-weight: 600;
  flex-shrink: 0;
}
.nav-home:hover { color: var(--color-ink); text-decoration: none; }

.search-form {
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 14px;
  gap: 8px;
}

.site-header .search-form input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.95rem;
  width: 100%;
  font-family: var(--font-body);
  color: var(--color-ink);
}

.site-header .search-form input::placeholder { color: var(--color-ink-faint); }
.site-header .search-form svg { color: var(--color-ink-faint); flex-shrink: 0; }

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-ink);
  -webkit-box-shadow: 0 0 0px 1000px var(--color-bg-input) inset;
  transition: background-color 9999s ease-in-out 0s;
}

/* ---------- Layout ---------- */

main { padding: 0 0 56px; }

/* ---------- Hero (home + every service/tool page) ---------- */

.hero {
  /* No full-bleed trick here on purpose: --color-bg is identical to the body
     background, so a 100vw/negative-margin break-out buys nothing visually
     and, on narrow viewports, pushed content past the left edge (clipped,
     unreachable text) once a vertical scrollbar was present. Plain block
     flow inside the parent .wrap (which already has the side padding). */
  background: var(--color-bg);
  padding: 44px 0 40px;
}

.hero-inner { max-width: 760px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.9rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.hero h1 .accent { color: var(--color-primary); }

.hero p.lede {
  font-size: 1.05rem;
  color: var(--color-ink-soft);
  margin: 0 0 24px;
  max-width: 56ch;
}

.hero .search-form-hero {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border: none;
  border-radius: var(--radius);
  padding: 16px 20px;
  max-width: 520px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.hero .search-form-hero input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 1rem;
  width: 100%;
  font-family: var(--font-body);
  color: #17233d;
}

.hero .search-form-hero svg { color: #5b6b85; flex-shrink: 0; }

.hero .search-form-hero input:-webkit-autofill,
.hero .search-form-hero input:-webkit-autofill:hover,
.hero .search-form-hero input:-webkit-autofill:focus {
  -webkit-text-fill-color: #17233d;
  -webkit-box-shadow: 0 0 0px 1000px #ffffff inset;
}

.feature-row {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 2px dashed var(--color-pill);
}

.feature-row .feature { font-size: 0.85rem; color: var(--color-ink-soft); }

.feature-row .feature strong {
  display: block;
  color: var(--color-ink);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 2px;
}

/* ---------- Category / department sections (home) ---------- */

.category-section { margin: 48px 0; }

.category-section .cat-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.category-section .cat-desc {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
  margin: 0 0 18px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.tool-card-link {
  display: block;
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.tool-card-link:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.tool-card-link h3 { color: var(--color-ink); font-size: 1rem; margin: 0 0 8px; padding-right: 54px; }
.tool-card-link p { color: var(--color-ink-soft); font-size: 0.88rem; margin: 0 0 14px; line-height: 1.5; }
.tool-card-link .card-price {
  position: absolute;
  top: 18px;
  right: 18px;
  font-weight: 800;
  color: var(--color-accent-text);
  font-size: 0.95rem;
}
.badge-new {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 8px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  color: var(--color-accent);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
}
.tool-card-link .open-tool { color: var(--color-primary); font-size: 0.85rem; font-weight: 600; }

/* ---------- Department blocks (home) ---------- */

.department-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 48px 0;
}
@media (max-width: 760px) {
  .department-groups { grid-template-columns: 1fr; }
}
.department-group h2 {
  font-size: 1.1rem;
  margin: 0 0 4px;
}
.department-group .group-desc { color: var(--color-ink-soft); font-size: 0.88rem; margin: 0 0 16px; }
.department-list { display: grid; gap: 10px; }
.department-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 18px;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 0.92rem;
}
.department-card:hover { border-color: var(--color-primary); text-decoration: none; }
.department-card .dept-count { color: var(--color-ink-faint); font-weight: 500; font-size: 0.82rem; flex-shrink: 0; }

/* ---------- Service/tool page ---------- */

.tool-header h1 { font-size: 1.6rem; margin: 0 0 6px; }
.tool-header p { color: var(--color-ink-soft); margin: 0 0 24px; max-width: 62ch; }

.price-block {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin: 18px 0 0;
}
.price-tag { font-size: 2.1rem; font-weight: 800; color: var(--color-ink); }
.price-tag .currency { font-size: 1.2rem; color: var(--color-ink-soft); font-weight: 700; margin-right: 2px; }

.btn-buy {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-btn-buy-text);
  border: none;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 1.02rem;
  font-weight: 700;
  cursor: pointer;
}
.btn-buy:hover { background: #0f9e73; text-decoration: none; }

.tool-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--color-bg-card);
  margin-top: 24px;
}

.tool-card h2 { font-size: 1.1rem; margin: 0 0 14px; }
.tool-card + .tool-card { margin-top: 18px; }

.included-list, .excluded-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.included-list li, .excluded-list li { padding-left: 28px; position: relative; color: var(--color-ink-soft); }
.included-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  color: var(--color-accent-text); font-weight: 800;
}
.excluded-list li::before {
  content: "✕";
  position: absolute; left: 0; top: 0;
  color: var(--color-pill); font-weight: 800;
}

.how-it-works { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; counter-reset: step; }
.how-it-works li { padding-left: 42px; position: relative; color: var(--color-ink-soft); }
.how-it-works li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 0; top: -2px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}

.how-it-works-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  color: var(--color-ink-faint);
  font-size: 0.85rem;
}

.faq-list { display: grid; gap: 20px; margin: 0; }
.faq-item dt { font-weight: 700; color: var(--color-ink); margin: 0 0 6px; font-size: 0.98rem; }
.faq-item dd { margin: 0; color: var(--color-ink-soft); }

.warning-box {
  border: 1px solid var(--color-pill);
  background: rgba(239, 77, 106, 0.08);
  border-radius: var(--radius);
  padding: 18px 20px;
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin-top: 24px;
}
.warning-box strong { color: var(--color-ink); }

/* ---------- Generic form controls ---------- */

.field-label { display: block; font-weight: 600; color: var(--color-ink); margin: 0 0 6px; font-size: 0.9rem; }
.field-group { margin-bottom: 18px; }

textarea, input[type="text"], input[type="email"], input[type="number"], input[type="date"], input[type="datetime-local"], select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
  background: var(--color-bg-input);
}

.btn {
  display: inline-block;
  background: var(--color-btn-bg);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--color-btn-bg-hover); text-decoration: none; }

/* ---------- Intake form (/intake/) ---------- */
.intake-form { max-width: 720px; }
.intake-pack { margin: 0 0 20px; color: var(--color-ink-soft); }
.intake-pack strong { color: var(--color-ink); }
.intake-form .optional { font-weight: 400; color: var(--color-ink-faint); }
.intake-form textarea { resize: vertical; }
.field-hint { margin: 8px 0 0; font-size: 0.85rem; color: var(--color-ink-soft); }
.field-hint strong { color: var(--color-ink); }
.intake-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.intake-form .warning-box { margin: 0 0 20px; }
.intake-form .warning-box ul { margin: 8px 0 0; padding-left: 20px; }

/* ---------- Related services (bottom of each service/tool page) ---------- */
.related-tools { margin: 40px 0; padding-top: 24px; border-top: 1px solid var(--color-border); }
.related-tools h2 { font-size: 1.05rem; color: var(--color-ink); margin: 0 0 14px; }
.related-tools .tool-card-link { padding: 16px; }
.related-tools .tool-card-link p { margin-bottom: 10px; }
@media print { .related-tools { display: none; } }

/* ---------- Legal pages ---------- */

.legal-document h1 { font-size: 1.5rem; }
.legal-document h2 { font-size: 1.1rem; margin-top: 28px; color: var(--color-ink); }
.legal-document { max-width: 72ch; margin-top: 32px; }
.legal-document strong { color: var(--color-ink); }
.legal-document p { margin: 0 0 14px; }
.legal-document ul { margin: 0 0 14px; padding-left: 22px; display: grid; gap: 8px; }
.legal-document .legal-updated { color: var(--color-ink-faint); font-size: 0.85rem; margin-top: 32px; }

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

.support-bar {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.support-bar .wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

.site-footer { padding: 32px 0 24px; font-size: 0.85rem; }

.site-footer .footer-brand {
  color: var(--color-ink);
  font-weight: 700;
  font-size: 1rem;
  margin: 0 0 6px;
}

.site-footer .footer-tagline { color: var(--color-ink-faint); margin: 0 0 8px; max-width: 60ch; }
.site-footer .footer-credit { color: var(--color-ink-faint); font-size: 0.85rem; margin: 0 0 16px; }
.site-footer .footer-credit a { color: var(--color-primary); font-weight: 600; }

.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer nav a { color: var(--color-ink-soft); }

@media (max-width: 640px) {
  .site-header .wrap { flex-direction: column; align-items: stretch; }
}