:root {
  color-scheme: dark;
  --bg: #08090B;
  --bg-warm: #0d0f12;
  --surface: #101216;
  --card: #0b0d10;
  --ink: #E3E9EE;
  --ink-soft: #d5dde4;
  --muted: #aeb8c2;
  --line: #32373e;
  --line-strong: #677583;
  --accent: #65B4DE;
  --accent-bright: #65B4DE;
  --gold: #D8B560;
  --header: #08090B;
  --header-ink: #E3E9EE;
  --header-muted: #aeb8c2;
  --ok: #6AC28E;
  --shadow: none;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

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

img { max-width: 100%; height: auto; }

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
}

.wrap {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.skip {
  position: absolute;
  top: -120px;
  left: 16px;
  z-index: 20;
  background: var(--header);
  color: #fff;
  padding: 12px 16px;
  text-decoration: none;
}

.skip:focus { top: 8px; }

/* Utility bar */
.utility {
  background: #0d0f12;
  color: var(--header-muted);
  font-size: 13px;
  letter-spacing: 0.01em;
}

.utility .wrap {
  display: flex;
  justify-content: space-between;
  gap: 12px 24px;
  align-items: center;
  min-height: 40px;
  flex-wrap: wrap;
  padding: 8px 0;
}

.utility a {
  color: var(--header-ink);
  text-decoration: none;
}

.utility a:hover { text-decoration: underline; text-underline-offset: 3px; }

.utility-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

/* Header / nav */
.site-header {
  background: var(--header);
  color: var(--header-ink);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 10px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.15;
  flex: none;
}

.brand small {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  margin-top: 3px;
  color: var(--header-muted);
  font-weight: 500;
}

.brand-card-icon {
  width: 32px;
  height: 36px;
  flex: none;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  background: transparent;
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
  padding: 14px 12px;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: #fff;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 4px;
  align-items: center;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 8px;
  color: var(--header-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.site-nav a:hover { color: #fff; }

.site-nav a[aria-current="page"] {
  color: #fff;
  box-shadow: inset 0 -2px 0 var(--accent-bright);
}

/* Page frames */
.page-hero {
  padding: 72px 0 56px;
}

.page-hero.home-hero {
  padding: 80px 0 64px;
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 64px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 650;
  color: var(--accent);
  margin: 0 0 16px;
}

h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 4.6vw, 54px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
  color: var(--ink);
}

.lede, .lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 22px;
}

.hero-note {
  font-size: 14px;
  color: var(--muted);
  margin: 14px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 20px;
  background: #E3E9EE;
  color: #08090B;
  border: 1px solid #E3E9EE;
  text-decoration: none;
  font-size: 15px;
  font-weight: 650;
  border-radius: 3px;
}

.button:hover { background: #fff; }

.button-secondary {
  background: transparent;
  color: #E3E9EE;
  border-color: #677583;
}

.button-secondary:hover { background: #20262d; }

.card-art {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 36px 24px 30px;
  background: #0c0e11;
  color: #e3e9ee;
  border: 1px solid #56616b;
  box-shadow: none;
}

.card-art-heading {
  text-align: center;
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.25;
  font-weight: 600;
  margin-bottom: 28px;
  color: #E3E9EE;
}

.card-icon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px 16px;
}

.icon-cell { text-align: center; min-width: 0; }

.card-icon {
  display: block;
  width: 100%;
  max-width: 96px;
  height: 80px;
  margin: auto;
}

.icon-cell span {
  display: block;
  font-size: 12px;
  color: #c5cdd6;
  margin-top: 8px;
}

.trust-bar {
  background: var(--bg-warm);
  border-block: 1px solid var(--line);
  padding: 22px 0;
}

.trust-bar .wrap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.trust-item strong {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.trust-item p, .trust-item a {
  margin: 0;
  color: var(--ink);
  text-decoration: none;
  font-size: 16px;
}

.trust-item a:hover { text-decoration: underline; text-underline-offset: 3px; }

.content { padding: 72px 0; }

.section-head {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 36px;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

.section-head .eyebrow { margin-bottom: 12px; }

.section-head p {
  font-size: 16px;
  color: var(--muted);
  max-width: 460px;
  margin: 0;
}

.cards, .how-steps, .steps, .prewire-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  margin: 0;
}

.how-steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.prewire-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card, .how-step, .steps li, .info-card {
  min-width: 0;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-card-icon {
  width: 58px;
  height: 54px;
  display: block;
  margin-bottom: 18px;
}

.number {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  font-weight: 650;
}

.card h3, .how-step h3, .info-card h3, .steps strong {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--ink);
}

.card p, .how-step p, .info-card p, .steps li {
  font-size: 16px;
  color: var(--muted);
  margin: 0;
}

.steps li { color: var(--muted); font-size: 16px; }
.steps strong { display: block; color: var(--ink); }

.home-preview { padding-top: 0; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.split p { color: var(--muted); margin: 0 0 16px; }

.photo-placeholder {
  margin: 0;
  min-height: 320px;
  background: #101216;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aeb8c2;
  font-size: 14px;
  text-align: center;
  padding: 24px;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 36px;
  margin: 40px 0 0;
  border-radius: 8px;
}

.cta-panel h3 {
  font-family: var(--serif);
  font-size: 28px;
  margin: 0 0 12px;
}

.cta-panel p { color: var(--muted); margin: 0 0 16px; }

.cta-panel .button { margin: 0 8px 10px 0; }

/* Equipment — keep structure, raise type */
.equipment { padding-top: 24px; }

.eq-group-title {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 40px 0 16px;
}

.eq-intro {
  color: var(--muted);
  max-width: 860px;
  font-size: 16px;
  margin: 0 0 22px;
}

.eq-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.eq-card {
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
}

.eq-img {
  height: 176px;
  background: #edf0f2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.eq-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.eq-body { padding: 20px; }

.tier {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  font-weight: 650;
}

.eq-body h4 {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 10px 0 6px;
}

.eq-sub {
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
  margin: 0 0 12px;
}

.equipment-details {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 10px;
}

.equipment-details summary {
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  min-height: 40px;
  padding-block: 6px;
  line-height: 1.5;
}

.specs {
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
  margin: 12px 0;
}

.specs li + li { margin-top: 6px; }

.eq-note {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 12px 0 0;
}

.eq-fine {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
  margin: 24px 0;
  max-width: 1020px;
}

.eq-plan {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  border: 1px solid var(--line);
  padding: 32px;
  margin: 32px 0;
  background: var(--surface);
  border-radius: 8px;
}

.eq-plan h3 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 16px;
}

.eq-plan ul {
  padding-left: 18px;
  font-size: 16px;
  color: var(--muted);
}

.eq-plan li + li { margin-top: 10px; }

.eq-cta p {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 18px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 32px;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 650;
}

.phone-contact { margin-bottom: 24px; }

.phone-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--ink);
}

.email-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-size: 18px;
  color: var(--accent);
  text-underline-offset: 4px;
}

.dot {
  width: 8px;
  height: 8px;
  background: var(--ok);
  border-radius: 50%;
}

/* Support FAQ */
.faq details { border-bottom: 1px solid var(--line); }

.faq h3 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  margin: 36px 0 8px;
}

.faq summary {
  cursor: pointer;
  min-height: 48px;
  padding: 14px 0;
  font-size: 16px;
  color: var(--ink);
}

.faq details p,
.faq details ul,
.support-note {
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 16px;
  max-width: 820px;
}

.faq details ul { padding-left: 20px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #08090B;
  color: #aeb8c2;
  padding: 36px 0;
  font-size: 14px;
}

.site-footer a {
  color: #fff;
  text-underline-offset: 3px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
}

.site-footer strong { color: #fff; display: block; margin-bottom: 8px; }

.site-footer p, .site-footer ul { margin: 0 0 10px; padding: 0; list-style: none; }

.site-footer li { margin: 0 0 6px; }

.footer-bottom {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #9aa4ae;
}

@media (max-width: 1100px) {
  .home-hero-grid,
  .section-head,
  .split,
  .contact-grid,
  .eq-plan,
  .cta-panel,
  .footer-grid,
  .trust-bar .wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .eq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .how-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #08090B;
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
    flex-direction: column;
    align-items: stretch;
  }

  .site-header.is-open .site-nav { display: flex; }

  .site-nav a {
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }
}

@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .page-hero, .page-hero.home-hero { padding: 48px 0 40px; }
  .content { padding: 48px 0; }
  .cards, .prewire-grid, .steps, .eq-grid, .how-steps {
    grid-template-columns: 1fr;
  }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .phone-link { font-size: 24px; }
  .cta-panel, .eq-plan, .card, .contact-box { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}


/* Home theater product tabs */
.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}
.tablist button {
  min-height: 48px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 650;
  font-family: inherit;
  color: #E3E9EE;
  background: transparent;
  border: 1px solid #677583;
  border-radius: 3px;
  cursor: pointer;
}
.tablist button[aria-selected="true"] {
  background: #E3E9EE;
  color: #08090B;
  border-color: #E3E9EE;
}
.tab-panel { margin: 0 0 48px; }
html.js .tab-panel[hidden] { display: none; }

/* preview: 4-col footer + guide/plan pages */
@media (min-width: 1101px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }

.guide { max-width: 820px; }
.guide h2 { margin: 48px 0 14px; }
.guide p, .guide li { color: var(--muted); font-size: 17px; }
.guide li + li { margin-top: 8px; }
.guide strong { color: var(--ink); }
.notice { border: 1px solid var(--line-strong); border-left: 4px solid var(--gold); background: var(--surface); padding: 20px 24px; border-radius: 6px; margin: 0 0 32px; color: var(--ink); }
.notice p { margin: 0; color: var(--ink); }
.sample-badge { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #08090B; background: var(--gold); padding: 6px 12px; border-radius: 3px; margin: 0 0 16px; }
.plan-figure { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 20px; }
.plan-figure svg { width: 100%; height: auto; display: block; }
.plan-figure figcaption { color: var(--muted); font-size: 14px; margin-top: 12px; }
.legend { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 14px; color: var(--ink-soft); }
.legend span { display: inline-block; width: 14px; height: 14px; border-radius: 50%; vertical-align: -2px; margin-right: 8px; }
.plan-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.plan-table th, .plan-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.plan-table th { color: var(--accent); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.plan-table td { color: var(--ink-soft); }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 10px 0 10px 34px; border-bottom: 1px solid var(--line); position: relative; color: var(--ink-soft); }
.checklist li::before { content: ""; position: absolute; left: 0; top: 13px; width: 18px; height: 18px; border: 2px solid var(--accent); border-radius: 3px; }
.table-scroll { overflow-x: auto; }
.nf-code { font-family: var(--serif); font-size: clamp(72px, 12vw, 140px); line-height: 1; color: var(--accent); margin: 0 0 10px; }

/* Workmanship / wiring standard */
.workmanship {
  margin: 48px 0 0;
}
.equipment .workmanship {
  margin: 56px 0 8px;
}
.workmanship .section-head {
  margin-bottom: 28px;
}
.workmanship-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
}
.workmanship-list li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin: 0;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-width: 0;
}
.workmanship-list strong {
  display: block;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 6px;
}
.workmanship-list p {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
}
.workmanship-icon {
  width: 28px;
  height: 28px;
  display: block;
  margin-top: 2px;
  color: var(--accent);
}
.workmanship-compact > .workmanship,
section.workmanship-compact .workmanship {
  margin: 0;
}
.workmanship-compact .workmanship-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.workmanship-compact .workmanship-list li {
  align-items: center;
  padding: 20px 22px;
}
.workmanship-compact .workmanship-list strong {
  margin: 0;
  font-size: 17px;
}
.workmanship-brief {
  margin: 36px 0 0;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.workmanship-brief h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--ink);
}
.workmanship-brief p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}
.workmanship-brief .eyebrow { margin-bottom: 12px; }

@media (max-width: 760px) {
  .workmanship-list,
  .workmanship-compact .workmanship-list {
    grid-template-columns: 1fr;
  }
  .workmanship-brief { padding: 24px; }
}