/* Zantech Air Conditioning Services — shared site styles */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@600;700;800&family=Work+Sans:wght@400;500;600;700&display=swap');

:root {
  color-scheme: light;

  /* Page-level tokens (theme-aware) */
  --page-bg: oklch(0.985 0.006 90);
  --surface: oklch(1 0 0);
  --surface-2: oklch(0.965 0.01 250);
  --surface-tint: oklch(0.93 0.03 250);
  --border: oklch(0.88 0.02 250);
  --text: oklch(0.22 0.02 250);
  --text-muted: oklch(0.5 0.02 250);

  /* Brand tokens (fixed across themes — deliberate brand blocks) */
  --navy: oklch(0.24 0.05 250);
  --blue: oklch(0.5 0.14 250);
  --blue-dark: oklch(0.30 0.09 250);
  --amber: oklch(0.72 0.15 55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page-bg: oklch(0.18 0.014 250);
    --surface: oklch(0.235 0.016 250);
    --surface-2: oklch(0.27 0.018 250);
    --surface-tint: oklch(0.30 0.05 250);
    --border: oklch(0.37 0.02 250);
    --text: oklch(0.93 0.008 250);
    --text-muted: oklch(0.68 0.015 250);
    --blue: oklch(0.68 0.11 250);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page-bg: oklch(0.18 0.014 250);
  --surface: oklch(0.235 0.016 250);
  --surface-2: oklch(0.27 0.018 250);
  --surface-tint: oklch(0.30 0.05 250);
  --border: oklch(0.37 0.02 250);
  --text: oklch(0.93 0.008 250);
  --text-muted: oklch(0.68 0.015 250);
  --blue: oklch(0.68 0.11 250);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Work Sans', system-ui, sans-serif;
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / nav — fixed brand-navy block, same in both themes */
header.site {
  background: var(--blue-dark);
  color: oklch(1 0 0);
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.brand .name {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.5px;
  color: oklch(1 0 0);
}
.brand .tag {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: oklch(0.8 0.05 250);
}
nav.main {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
nav.main a {
  color: oklch(0.92 0.02 250);
  font-weight: 600;
  font-size: 14px;
}
nav.main a:hover { color: oklch(1 0 0); }
nav.main a.call {
  background: var(--amber);
  color: var(--navy);
  padding: 9px 16px;
  border-radius: 7px;
  font-weight: 700;
}
nav.main a.call:hover { color: var(--navy); filter: brightness(0.95); }

/* Hero — fixed brand-navy block */
.hero {
  background: var(--blue-dark);
  color: oklch(1 0 0);
  padding: 56px 0 64px;
}
.hero h1 {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  margin: 0 0 16px;
  max-width: 680px;
  text-wrap: balance;
}
.hero p {
  font-size: 17px;
  color: oklch(0.88 0.03 250);
  max-width: 560px;
  margin: 0 0 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 700;
  font-size: 15px;
  padding: 13px 24px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
}
.btn-amber { background: var(--amber); color: var(--navy); }
.btn-amber:hover { color: var(--navy); filter: brightness(0.95); }
.btn-outline { background: transparent; color: oklch(1 0 0); border: 1.5px solid oklch(0.6 0.05 250); }
.btn-outline:hover { color: oklch(1 0 0); background: rgba(255,255,255,0.06); }
.btn-disabled { background: var(--surface-2); color: var(--text-muted); cursor: not-allowed; border: 1px dashed var(--border); }
.btn-line { background: var(--surface); color: var(--blue); border: 1.5px solid var(--blue); }
.btn-line:hover { background: var(--surface-tint); color: var(--blue); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2.5px solid var(--blue);
  outline-offset: 2px;
}

/* Section headings */
.eyebrow {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0 0 8px;
}
h2.section-title {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800;
  font-size: clamp(24px, 3vw, 32px);
  margin: 0 0 12px;
  color: var(--text);
  text-wrap: balance;
}
.section-sub {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 640px;
  margin: 0 0 32px;
}

/* Plan category cards (home page) */
.plan-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
@media (max-width: 820px) {
  .plan-grid-3 { grid-template-columns: 1fr; }
}
.plan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.plan-card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--surface-tint);
  display: flex; align-items: center; justify-content: center;
}
.plan-card h3 {
  font-family: 'Archivo', system-ui, sans-serif;
  font-size: 19px;
  margin: 4px 0 0;
  color: var(--text);
}
.plan-card p { color: var(--text-muted); font-size: 14px; margin: 0; flex: 1; }
.plan-card .from-price {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800;
  font-size: 15px;
  color: var(--blue);
}

/* Tier cards (plan detail pages) */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .tier-grid { grid-template-columns: 1fr; }
}
.tier-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .15s ease, transform .15s ease;
}
.tier-card.selected {
  box-shadow: 0 0 0 3px var(--amber);
  transform: translateY(-2px);
}
.tier-card .tier-head {
  padding: 20px 22px;
  background: var(--surface-tint);
  position: relative;
}
.tier-card.popular .tier-head { background: var(--amber); }
.tier-card.premium .tier-head { background: var(--blue-dark); color: oklch(1 0 0); }
.tier-card .badge {
  position: absolute; top: 0; right: 16px;
  background: var(--navy); color: oklch(1 0 0);
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 700; font-size: 10px; letter-spacing: 0.8px;
  text-transform: uppercase; padding: 4px 10px;
  border-radius: 0 0 6px 6px;
}
.tier-card .tier-name {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 700; font-size: 18px; margin: 0 0 6px;
}
.tier-card .tier-price {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800; font-size: 26px;
  font-variant-numeric: tabular-nums;
}
.tier-card .tier-price span { font-size: 13px; font-weight: 600; }
.tier-card .tier-body {
  padding: 20px 22px;
  display: flex; flex-direction: column; gap: 10px;
  flex: 1;
}
.tier-card ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 9px; flex: 1;
}
.tier-card li {
  display: flex; gap: 8px; align-items: flex-start;
  font-size: 13.5px; color: var(--text);
}
.tier-card li svg { flex-shrink: 0; margin-top: 2px; }
.tier-card .select-btn {
  margin-top: 6px;
  width: 100%;
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 700;
  font-size: 14px;
  padding: 12px;
  border-radius: 8px;
  border: 1.5px solid var(--blue);
  background: var(--surface);
  color: var(--blue);
  cursor: pointer;
}
.tier-card .select-btn:hover { background: var(--surface-tint); }
.tier-card.popular .select-btn { background: var(--amber); border-color: var(--amber); color: var(--navy); }
.tier-card.popular .select-btn:hover { filter: brightness(0.96); }

/* Why us strip */
.why-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
@media (max-width: 760px) { .why-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .why-grid { grid-template-columns: 1fr; } }
.why-item { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--text); }
.why-item svg { flex-shrink: 0; margin-top: 2px; }

/* Footer — fixed brand-navy block */
footer.site {
  background: var(--blue-dark);
  color: oklch(0.85 0.03 250);
  padding: 36px 0 28px;
  margin-top: 56px;
  font-size: 13px;
}
footer.site .foot-top {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px;
  margin-bottom: 18px;
}
footer.site a { color: oklch(1 0 0); }
footer.site .fine {
  color: oklch(0.65 0.03 250);
  font-size: 11.5px;
  border-top: 1px solid oklch(0.4 0.05 250);
  padding-top: 16px;
  line-height: 1.6;
}

/* Checkout page */
.checkout-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 860px) { .checkout-grid { grid-template-columns: 1fr; } }
.summary-card, .form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px;
}
.summary-card h3, .form-card h3 {
  font-family: 'Archivo', system-ui, sans-serif;
  font-size: 17px;
  margin: 0 0 16px;
  color: var(--text);
}
.summary-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 0; border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.summary-row .label { color: var(--text-muted); }
.summary-row.total {
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 800; font-size: 17px; border-bottom: none; padding-top: 14px;
  font-variant-numeric: tabular-nums;
}
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-field label { font-size: 12.5px; font-weight: 600; color: var(--text-muted); }
.form-field input, .form-field textarea, .form-field select {
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 10px 12px;
  font-family: 'Work Sans', sans-serif;
  font-size: 14px;
  background: var(--surface-2);
  color: var(--text);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
  background: var(--surface);
}
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .form-grid-2 { grid-template-columns: 1fr; } }
.radio-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.radio-row label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
}
.radio-row input[type="radio"] { accent-color: var(--blue); width: 16px; height: 16px; }
.hp-field { position: absolute; left: -9999px; top: -9999px; }

/* Maintenance plan pitch (used on appointment page) */
.pitch-band {
  background: var(--surface-tint);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
}
@media (max-width: 600px) { .pitch-band { padding: 28px 20px; } }
.notice {
  background: var(--surface-tint);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--text);
  margin: 14px 0;
}
.breadcrumb { font-size: 13px; color: var(--text-muted); margin: 22px 0 4px; }
.breadcrumb a { font-weight: 600; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}