/* Indy HVAC Pros — Group A emergency homepage.
   Tokens follow docs/group-a-style-brief.md (UIGEN repo). Contrast ratios in
   comments were measured with the WCAG 2.1 formula. Homepage only: the other
   pages keep using global-css-tokens.css. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter-latin-var.woff2") format("woff2");
}

:root {
  /* Color */
  --color-brand: #2457ff;          /* white on it 5.41 · on white 5.41 */
  --color-brand-hover: #1a44d6;    /* white on it 7.39 */
  --color-brand-tint: #eef2ff;     /* brand text on it 4.84 */
  --color-brand-on-dark: #93a9ff;  /* on base 8.53 */
  --color-action: #c2410c;         /* call/submit only · white on it 5.18 */
  --color-action-hover: #9a3412;   /* white on it 7.31 */
  --color-base: #0b0f1a;           /* white on it 19.13 */
  --color-base-2: #161c2b;         /* white on it 17.0 */
  --color-surface: #f4f5f7;
  --color-white: #ffffff;
  --color-text: #0b0b0d;           /* on white 19.66 */
  --color-muted: #5b6270;          /* on white 6.13 · on surface 5.62 */
  --color-silver: #b7bcc2;         /* on base 10.01 */
  --color-border: #8a919e;         /* against white 3.17 */
  --color-success: #15803d;        /* on white 5.02 */
  --color-error: #b91c1c;          /* on white 6.47 */
  --color-safety-bg: #fff7ed;
  --color-safety-text: #7c2d12;    /* on safety bg 8.83 */

  /* Type */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.3rem + 2.6vw, 3rem);
  --text-phone: clamp(1.375rem, 1.1rem + 1vw, 1.75rem);

  /* Space */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px; --space-9: 96px;
  --section-pad: 48px;
  --gutter: 16px;

  /* Layout and shape */
  --container: 1120px;
  --container-narrow: 720px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgb(11 15 26 / 0.06), 0 4px 12px rgb(11 15 26 / 0.06);
  --callbar-h: calc(64px + env(safe-area-inset-bottom));
  --z-header: 50;
  --z-callbar: 60;
}

@media (min-width: 768px) {
  :root { --section-pad: 80px; --gutter: 24px; }
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-brand); text-underline-offset: 3px; }
a:hover { color: var(--color-brand-hover); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 var(--space-4); letter-spacing: -0.01em; }
h2 { font-size: var(--text-2xl); font-weight: 700; }
h3 { font-size: var(--text-lg); font-weight: 700; }
p { margin: 0 0 var(--space-4); }

:focus-visible { outline: 3px solid var(--color-brand); outline-offset: 2px; }
.on-dark :focus-visible,
.btn-call:focus-visible,
.btn-submit:focus-visible,
.callbar a:focus-visible { outline-color: var(--color-white); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-4); top: -100px; z-index: 100;
  background: var(--color-white); color: var(--color-text);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
}
.skip-link:focus { top: var(--space-2); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: var(--container-narrow); }
.section { padding: var(--section-pad) 0; }
.section-surface { background: var(--color-surface); }
.section-intro { color: var(--color-muted); max-width: 60ch; margin-bottom: var(--space-6); }

.icon {
  width: 24px; height: 24px; flex-shrink: 0;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

/* Buttons */
.btn-call, .btn-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  background: var(--color-action); color: var(--color-white);
  font: inherit; font-weight: 700; text-decoration: none;
  border: 0; border-radius: var(--radius-md); cursor: pointer;
  transition: background-color 150ms;
}
.btn-call { min-height: 56px; padding: 0 var(--space-5); font-size: var(--text-lg); }
.btn-submit { min-height: 48px; padding: 0 var(--space-5); width: 100%; font-size: var(--text-base); }
.btn-call:hover, .btn-submit:hover { background: var(--color-action-hover); color: var(--color-white); }
.btn-submit[disabled] { opacity: 0.75; cursor: progress; }
.phone-number {
  display: inline-block; font-size: var(--text-phone); font-weight: 700;
  font-variant-numeric: tabular-nums; text-decoration: none; color: inherit;
}

/* Demo label */
.demo-label {
  background: var(--color-base-2); color: var(--color-silver);
  font-size: var(--text-sm); text-align: center; padding: 6px var(--gutter);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  background: var(--color-white); border-bottom: 1px solid #e6e8ec;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 64px; }
.header-logo { display: block; flex-shrink: 0; }
.header-logo img { height: 28px; width: auto; }
@media (min-width: 380px) { .header-logo img { height: 32px; } }
.site-nav ul { display: flex; gap: var(--space-5); list-style: none; margin: 0; padding: 0; }
.site-nav a { color: var(--color-text); font-weight: 600; font-size: var(--text-sm); text-decoration: none; }
.site-nav a:hover { color: var(--color-brand); }
.header-call { min-height: 44px; padding: 0 var(--space-4); font-size: var(--text-sm); }
.header-call .long { display: none; }
.site-nav { display: none; }
@media (min-width: 900px) {
  .site-nav { display: block; }
  .header-logo img { height: 36px; }
}
@media (min-width: 560px) {
  .header-call .long { display: inline; }
  .header-call .short { display: none; }
}

/* Hero */
.hero { background: var(--color-base); color: var(--color-white); }
.hero-media { display: block; }
.hero-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-inner { padding-top: var(--space-6); padding-bottom: var(--space-7); }
.hero-kicker {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--color-brand-on-dark); font-weight: 600; font-size: var(--text-sm); margin-bottom: var(--space-3);
}
.hero-kicker .icon { width: 18px; height: 18px; }
.hero h1 { font-size: var(--text-3xl); font-weight: 800; letter-spacing: -0.02em; }
.hero-lead { font-size: var(--text-lg); max-width: 34ch; }
.hero-call { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); margin: var(--space-5) 0 var(--space-6); }
.hero-call .btn-call { width: 100%; }
.hero-call .phone-number { color: var(--color-white); }

@media (min-width: 768px) {
  .hero {
    /* Overlay measured on hero.webp: worst pixel behind the text 6.99:1 with white. */
    background:
      linear-gradient(90deg, rgb(11 15 26 / 0.78) 0%, rgb(11 15 26 / 0.78) 40%, rgb(11 15 26 / 0) 70%),
      url("images/hero.webp") 72% center / cover no-repeat,
      var(--color-base);
  }
  .hero-media { display: none; }
  .hero-inner { padding-top: var(--space-8); padding-bottom: var(--space-8); }
  .hero-content { max-width: 46%; min-width: 360px; }
  .hero-call { flex-direction: row; align-items: center; gap: var(--space-5); }
  .hero-call .btn-call { width: auto; }
}

/* Forms */
.form-card {
  background: var(--color-white); color: var(--color-text);
  border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-card);
}
.form-card h2 { font-size: var(--text-xl); margin-bottom: var(--space-1); }
.form-card .form-hint { color: var(--color-muted); font-size: var(--text-sm); margin-bottom: var(--space-4); }
.field { margin-bottom: var(--space-4); }
.field label { display: block; font-weight: 600; font-size: var(--text-sm); margin-bottom: var(--space-1); }
.field input, .field textarea {
  width: 100%; min-height: 48px; padding: 10px 12px;
  font: inherit; font-size: 16px; color: var(--color-text);
  background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
}
.field textarea { min-height: 96px; resize: vertical; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border: 2px solid var(--color-error); }
.field-error { color: var(--color-error); font-size: var(--text-sm); margin: var(--space-1) 0 0; }
.field-error:empty { display: none; }
.hero-form-row { display: grid; gap: 0 var(--space-4); }
@media (min-width: 560px) { .hero-form-row { grid-template-columns: 1fr 1fr; } }

.form-status { display: flex; gap: var(--space-2); align-items: flex-start; font-size: var(--text-sm); margin-top: var(--space-3); }
.form-status:empty { display: none; }
.form-status .icon { width: 20px; height: 20px; margin-top: 1px; }
.form-status[data-state="error"] { color: var(--color-error); }
.form-status[data-state="success"] { color: var(--color-success); }
.form-status[data-state="submitting"] { color: var(--color-muted); }
.form-status a { color: inherit; font-weight: 700; }

/* Trust strip */
.trust { background: var(--color-base-2); color: var(--color-white); }
.trust ul { list-style: none; margin: 0; padding: var(--space-5) 0; display: grid; gap: var(--space-4); }
.trust li { display: flex; align-items: center; gap: var(--space-3); font-weight: 600; font-size: var(--text-sm); }
.trust .icon { color: var(--color-brand-on-dark); }
@media (min-width: 768px) { .trust ul { grid-template-columns: repeat(3, 1fr); } }

/* Services */
.service-grid { list-style: none; margin: 0 0 var(--space-6); padding: 0; display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .service-grid { grid-template-columns: repeat(3, 1fr); } }
.card-service {
  background: var(--color-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: var(--space-5); display: flex; gap: var(--space-4); align-items: flex-start; height: 100%;
}
.icon-tile {
  width: 48px; height: 48px; border-radius: var(--radius-md); flex-shrink: 0;
  display: grid; place-items: center; background: var(--color-brand-tint); color: var(--color-brand);
}
.card-service h3 { margin-bottom: var(--space-1); }
.card-service p { color: var(--color-muted); font-size: var(--text-sm); margin: 0; }
.section-call { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-5); }
.section-call p { margin: 0; font-weight: 600; }

.callout-safety {
  display: flex; gap: var(--space-3); align-items: flex-start;
  background: var(--color-safety-bg); color: var(--color-safety-text);
  border-left: 4px solid var(--color-safety-text); border-radius: var(--radius-sm);
  padding: var(--space-4); margin-bottom: var(--space-6);
}
.callout-safety p { margin: 0; }

/* Service area */
.area-grid { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 900px) { .area-grid { grid-template-columns: 1fr 1fr; } }
.area-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-4);
}
.area-primary .icon { color: var(--color-brand); }
.chip-list { list-style: none; padding: 0; margin: 0 0 var(--space-5); display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip-area { background: var(--color-brand-tint); color: var(--color-text); border-radius: var(--radius-pill); padding: 8px 14px; font-weight: 600; font-size: var(--text-sm); }
.chip-area.is-primary { background: var(--color-brand); color: var(--color-white); }
.area-photo { border-radius: var(--radius-lg); width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }

/* Process */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-5); counter-reset: step; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { background: var(--color-white); border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-card); }
.step-head { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.step-num { font-size: var(--text-sm); font-weight: 700; color: var(--color-brand); }
.step p { color: var(--color-muted); margin: 0; }

/* FAQ */
.faq details { border-bottom: 1px solid #e6e8ec; }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  padding: var(--space-4) 0; font-weight: 700; font-size: var(--text-lg); min-height: 48px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { color: var(--color-muted); transition: transform 150ms; }
.faq details[open] summary .icon { transform: rotate(180deg); }
.faq details p { color: var(--color-muted); padding-bottom: var(--space-4); margin: 0; }

/* Final call */
.final-cta { background: var(--color-base); color: var(--color-white); text-align: center; }
.final-cta h2 { color: var(--color-white); }
.final-cta p { color: var(--color-silver); }
.final-cta .actions { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); }
.final-cta .phone-number { color: var(--color-white); }

/* Footer */
.site-footer { background: var(--color-base-2); color: var(--color-silver); padding: var(--section-pad) 0 var(--space-6); font-size: var(--text-sm); }
.footer-grid { display: grid; gap: var(--space-7); }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr 1.3fr; gap: var(--space-6); } }
.site-footer h2 { color: var(--color-white); font-size: var(--text-lg); margin-bottom: var(--space-3); }
.site-footer a { color: var(--color-white); }
.footer-logo img { height: 32px; width: auto; margin-bottom: var(--space-4); }
.footer-contact { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); }
.footer-contact li { display: flex; align-items: center; gap: var(--space-2); }
.footer-contact .icon { width: 18px; height: 18px; color: var(--color-brand-on-dark); }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.footer-links a { display: inline-block; padding: 6px 0; }
.footer-bottom { border-top: 1px solid #2a3142; margin-top: var(--space-7); padding-top: var(--space-5); }
.footer-bottom p { margin: 0 0 var(--space-2); }

/* Mobile call bar */
.callbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-callbar);
  background: var(--color-action); padding-bottom: env(safe-area-inset-bottom);
}
.callbar a {
  display: flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 64px; color: var(--color-white); font-weight: 700; font-size: var(--text-lg); text-decoration: none;
}
@media (max-width: 767px) { body { padding-bottom: var(--callbar-h); } }
@media (min-width: 768px) { .callbar { display: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}

/* Forms sitting inside dark sections keep dark text on their white card. */
.on-dark .form-card h2 { color: var(--color-text); }
.on-dark .form-card a { color: var(--color-brand); }
.on-dark .form-card .form-status[data-state="error"] a { color: var(--color-error); }
.icon-tile img { width: 32px; height: 32px; }