/* ===========================================================
   Appliance Repair Redwood City — Design Tokens & Base Styles
   Palette: cool lavender-porcelain background, deep plum brand,
   warm gold accent, rust urgency. Signature motif: the "gauge
   arc" indicator (a partial ring + dot), echoing a diagnostic
   dial rather than a data-plate. Deliberately distinct from
   this project's sibling satellite (teal/brass/slab-serif family).
   =========================================================== */

:root {
  /* Color */
  --color-bg: #F5F2F6;
  --color-surface: #FFFFFF;
  --color-ink: #221A29;
  --color-ink-soft: #56495F;
  --color-ink-faint: #7A6D82;
  --color-brand: #3B2354;
  --color-brand-dark: #281640;
  --color-brand-tint: #ECE4F1;
  --color-accent: #C08A2E;
  --color-accent-dark: #9C6E20;
  --color-accent-tint: #F5E8D2;
  --color-urgent: #B5432A;
  --color-urgent-tint: #F6E1D9;
  --color-line: #E1D9E5;
  --color-line-strong: #C4B6CB;

  /* Shadows (brand-tinted, layered) */
  --shadow-sm: 0 1px 2px rgba(59, 35, 84, 0.09);
  --shadow-md: 0 6px 16px rgba(59, 35, 84, 0.12), 0 1px 3px rgba(59, 35, 84, 0.09);
  --shadow-lg: 0 16px 36px rgba(59, 35, 84, 0.18), 0 4px 10px rgba(59, 35, 84, 0.12);
  --shadow-accent: 0 8px 20px rgba(192, 138, 46, 0.30);

  /* Type */
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  /* Layout */
  --max-width: 1160px;
  --radius: 12px;
  --radius-sm: 7px;
  --gutter: 1.5rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: none;
  color: var(--color-brand-dark);
  line-height: 1.12;
  letter-spacing: 0.002em;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4.6vw, 2.9rem); font-weight: 600; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 0; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1.1em; color: var(--color-ink-soft); }
p:last-child { margin-bottom: 0; }

a { color: var(--color-brand); }

ul, ol { padding-left: 1.3em; color: var(--color-ink-soft); }
li { margin-bottom: 0.5em; }
li:last-child { margin-bottom: 0; }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--color-brand-dark);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Icons ---------- */
.icon {
  width: 1.4em;
  height: 1.4em;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(241, 243, 241, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}
.site-logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--color-brand-dark); }
.site-logo__img { height: 40px; width: 40px; display: block; }
.site-logo__word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.site-logo__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  font-weight: 500;
}

.site-nav {
  display: none;
  gap: 1.6rem;
  align-items: center;
}
.site-nav a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}
.site-nav a:hover,
.site-nav a.active { color: var(--color-brand-dark); }

.header-cta {
  display: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  color: var(--color-brand-dark);
  cursor: pointer;
}

.site-nav.is-open {
  display: flex;
  position: absolute;
  top: 72px;
  left: 0; right: 0;
  background: var(--color-surface);
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem var(--gutter) 1.4rem;
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .site-nav { display: flex; }
  .site-nav.mobile-only-hidden { position: static; box-shadow: none; padding: 0; flex-direction: row; }
  .nav-toggle { display: none; }
  .header-cta { display: inline-flex; }
}

/* ---------- Buttons / CTAs ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.16s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.16s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.16s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn--primary:hover { background: var(--color-accent-dark); box-shadow: 0 10px 26px rgba(169, 118, 47, 0.34); }

.btn--secondary {
  background: var(--color-brand);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn--secondary:hover { background: var(--color-brand-dark); }

.btn--outline {
  background: transparent;
  color: var(--color-brand-dark);
  border-color: var(--color-line-strong);
}
.btn--outline:hover { border-color: var(--color-brand); background: var(--color-brand-tint); }

.btn--sm { padding: 0.6rem 1rem; font-size: 0.88rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-brand-dark);
  color: #DCE7E4;
  padding: 3rem 0 1.6rem;
  margin-top: 4rem;
}
.site-footer a { color: #EFEAE0; }
.site-footer .footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
.site-footer h3 {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.5rem; color: #C7D4D0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.14);
  margin-top: 2.2rem;
  padding-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #9FB0AB;
}
@media (min-width: 768px) {
  .site-footer .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; }
}