/* =========================================================
   SBPI — Single Bolt Pipe Installations
   Mobile-first. Breakpoints: 768px, 1100px.
   ========================================================= */

:root {
  --ink:        #16202A;
  --steel:      #2E3F4F;
  --orange:     #F26522;
  --offwhite:   #F7F8F9;
  --grey:       #E3E6E8;
  --white:      #FFFFFF;
  --muted-dark: #A9B4BE;   /* muted text on ink — 7.8:1 */

  --head: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;

  --wrap: 1120px;
  --gutter: 20px;
  --tap: 44px;
}

/* ---------- Reset / base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--offwhite);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  font-family: var(--head);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.08;
  margin: 0 0 0.4em;
}

h1 { font-size: 2.35rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.3rem; letter-spacing: 0.05em; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--steel); }
a:hover { color: var(--ink); }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section[id] { scroll-margin-top: 80px; }

/* ---------- Accessibility helpers ---------- */

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--head);
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 12px 20px;
}
.skip-link:focus {
  left: 0;
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 2px;
}
.site-header :focus-visible,
.site-footer :focus-visible,
.hero :focus-visible {
  outline-color: var(--orange);
}
main:focus, section:focus { outline: none; }

/* ---------- Logo lockup ---------- */

.lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  min-height: var(--tap);
}
.lockup .mark { flex: 0 0 auto; color: currentColor; }
.mark-bolt { fill: var(--orange); }
.mark-bolt-inner { stroke: var(--ink); }

.lockup-text { display: flex; flex-direction: column; line-height: 1; }

.lockup-name {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: currentColor;
}
.lockup-strap {
  font-family: var(--body);
  font-weight: 500;
  font-size: 0.58rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--steel);
  margin-top: 3px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--tap);
  padding: 11px 20px;
  border: 1px solid transparent;
  font-family: var(--head);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);   /* 5.3:1 on safety orange */
}
.btn-primary:hover,
.btn-primary:focus-visible { background: #D8551A; border-color: #D8551A; color: var(--ink); }

.btn-ghost {
  background: transparent;
  border-color: var(--white);
  color: var(--white);
}
.btn-ghost:hover,
.btn-ghost:focus-visible { background: var(--white); color: var(--ink); }

.btn-submit { width: 100%; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--grey);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
  padding-top: 8px;
  padding-bottom: 8px;
}

.site-nav { display: none; }

.btn-call {
  flex: 0 0 auto;
  min-width: var(--tap);
  padding: 11px 14px;
}
.btn-call-label { display: none; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  border-bottom: 4px solid var(--orange);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.04) 0, rgba(255, 255, 255, 0.04) 2px,
    transparent 2px, transparent 11px
  );
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 56px;
  padding-bottom: 56px;
}

.eyebrow {
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 14px;
}
.eyebrow-dark { color: var(--steel); }
.eyebrow::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: var(--orange);
  margin-top: 10px;
}

.hero h1 {
  font-size: 2.5rem;
  letter-spacing: 0.045em;
  margin-bottom: 18px;
  max-width: 16ch;
}

.hero-sub {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--white);
  max-width: 34ch;
  margin-bottom: 6px;
}
.hero-support {
  font-size: 1rem;
  color: var(--muted-dark);
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-actions .btn { flex: 1 1 auto; min-width: 200px; }

/* ---------- Sections ---------- */

.section { padding: 52px 0; }
.section-alt {
  background: var(--white);
  border-top: 1px solid var(--grey);
  border-bottom: 1px solid var(--grey);
}
.section h2 { margin-bottom: 28px; }

/* ---------- Feature cards ---------- */

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--white);
  border: 1px solid var(--grey);
  padding: 24px 22px 26px;
}
.section-alt .card { background: var(--offwhite); }

.card-icon { color: var(--orange); margin-bottom: 16px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--steel); margin: 0; }

/* ---------- About ---------- */

.about-inner { max-width: 68ch; }
.lede { font-size: 1.05rem; color: var(--steel); }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  gap: 36px;
}

.contact-person {
  font-family: var(--head);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--grey);
}
.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--grey);
  min-height: var(--tap);
  justify-content: center;
}
.contact-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
}
.contact-value {
  font-family: var(--head);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  word-break: break-word;
}
a.contact-value:hover { color: var(--orange); text-decoration: underline; }
.contact-value-plain { font-size: 1.2rem; }

/* ---------- Form ---------- */

.contact-form {
  background: var(--white);
  border: 1px solid var(--grey);
  padding: 22px 20px 24px;
}
.section-alt .contact-form { background: var(--offwhite); }

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 6px;
}
.req { color: var(--steel); }

.field input,
.field textarea {
  display: block;
  width: 100%;
  min-height: var(--tap);
  padding: 11px 12px;
  font-family: var(--body);
  font-size: 16px;   /* prevents iOS zoom on focus */
  line-height: 1.5;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--steel);
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
.field textarea { resize: vertical; }
.field input:focus,
.field textarea:focus {
  border-color: var(--orange);
  outline: 3px solid var(--orange);
  outline-offset: 1px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--steel);
  margin-bottom: 18px;
}

/* ---------- Thanks page ---------- */

.page-narrow { padding: 56px 0 64px; }
.page-narrow .wrap { max-width: 62ch; }
.page-narrow p { color: var(--steel); }
.back-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  font-family: var(--head);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}

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

.site-footer {
  background: var(--ink);
  color: var(--white);
  border-top: 4px solid var(--orange);
  padding: 40px 0 32px;
}

.footer-inner { display: grid; gap: 28px; }

.site-footer .lockup { color: var(--white); }
.site-footer .lockup-strap { color: var(--muted-dark); }
.site-footer .mark-bolt-inner { stroke: var(--ink); }

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  min-height: var(--tap);
  color: var(--white);
}
.footer-contact a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
}
.footer-contact a:hover { color: var(--orange); text-decoration: underline; }

.footer-legal { border-top: 1px solid var(--steel); padding-top: 20px; }
.legal-line {
  font-size: 0.8rem;
  color: var(--muted-dark);
  margin-bottom: 6px;
}
.copyright {
  font-size: 0.85rem;
  color: var(--muted-dark);
  margin: 0;
}

/* =========================================================
   768px and up
   ========================================================= */

@media (min-width: 768px) {

  body { font-size: 17px; }

  .wrap { padding: 0 32px; }

  h1 { font-size: 3.4rem; }
  h2 { font-size: 2.3rem; }

  .header-inner { min-height: 76px; }

  .site-nav { display: block; margin-left: auto; }
  .site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: var(--tap);
    padding: 8px 14px;
    font-family: var(--head);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--ink);
    text-decoration: none;
    border-bottom: 3px solid transparent;
  }
  .site-nav a:hover,
  .site-nav a:focus-visible { border-bottom-color: var(--orange); }

  .btn-call { margin-left: 20px; padding: 11px 20px; }
  .btn-call-label { display: inline; }

  .lockup-name { font-size: 2rem; }
  .lockup-strap { font-size: 0.63rem; }

  .hero-inner { padding-top: 96px; padding-bottom: 96px; }
  .hero h1 { font-size: 3.8rem; }
  .hero-sub { font-size: 1.4rem; max-width: 40ch; }
  .hero-support { font-size: 1.05rem; }
  .hero-actions .btn { flex: 0 0 auto; min-width: 0; }

  .section { padding: 80px 0; }
  .section h2 { margin-bottom: 40px; }

  .cards { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .card { padding: 30px 26px 32px; }

  .lede { font-size: 1.15rem; }

  .contact-grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 48px;
    align-items: start;
  }
  .contact-form { padding: 30px 28px 32px; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px 40px;
    align-items: start;
  }
  .footer-contact { justify-self: end; text-align: right; }
  .footer-contact li { justify-content: flex-end; }
  .footer-legal { grid-column: 1 / -1; }

  .page-narrow { padding: 88px 0 96px; }
}

/* =========================================================
   1100px and up
   ========================================================= */

@media (min-width: 1100px) {
  .hero h1 { font-size: 4.4rem; }
  .hero-inner { padding-top: 120px; padding-bottom: 120px; }
  .cards { gap: 24px; }
  .contact-grid { gap: 64px; }
}