/* =========================================================
   WAHLBERG ELECTRIC — styles.css
   Mobile-first. Design tokens grounded in electrical materials.
   ========================================================= */

:root {
  /* Palette */
  --graphite: #20242A;
  --graphite-700: #2A2F37;
  --graphite-500: #3A4049;
  --paper: #F4F1EB;
  --paper-200: #EAE5DB;
  --ink: #1A1D22;
  --copper: #B87333;
  --copper-bright: #D08A4E;
  --conductor: #2E5E8C;
  --line: rgba(32, 36, 42, 0.12);
  --line-light: rgba(244, 241, 235, 0.16);

  /* Type */
  --font-display: 'Archivo', system-ui, sans-serif;
  --font-body: 'Public Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* Scale */
  --wrap: 1120px;
  --gap: clamp(1rem, 3vw, 2rem);
  --radius: 4px;
  --section-y: clamp(3.5rem, 8vw, 6.5rem);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; margin: 0; letter-spacing: -0.01em; }
:focus-visible { outline: 3px solid var(--copper-bright); outline-offset: 2px; }

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

/* Spec / panel-label utility text */
[data-spec] {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 0.9rem;
}
.eyebrow--light { color: var(--copper-bright); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
  padding: 0.85rem 1.4rem; border-radius: var(--radius);
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .12s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--copper); color: #fff; }
.btn-primary:hover { background: var(--copper-bright); }
.btn-copper { background: var(--copper); color: #fff; }
.btn-copper:hover { background: var(--copper-bright); }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-ghost:hover { background: rgba(0,0,0,.06); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244, 241, 235, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand-mark {
  width: 20px; height: 20px; border-radius: 3px;
  background: var(--copper);
  box-shadow: inset 0 0 0 3px var(--graphite);
}
.brand-text { font-family: var(--font-display); font-weight: 900; letter-spacing: 0.02em; font-size: 1.05rem; line-height: 1; }
.brand-text-sub { color: var(--copper); margin-left: 0.3em; }

.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 4px;
  background: none; border: 0; padding: 8px; cursor: pointer;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); transition: transform .2s ease, opacity .2s ease; }
.nav-menu {
  position: absolute; top: 64px; left: 0; right: 0;
  display: none; flex-direction: column; gap: 0;
  list-style: none; margin: 0; padding: 0.5rem var(--gap) 1rem;
  background: var(--paper); border-bottom: 1px solid var(--line);
}
.nav-menu.is-open { display: flex; }
.nav-menu li { border-top: 1px solid var(--line); }
.nav-menu a { display: block; padding: 0.85rem 0; font-weight: 600; }
.nav-cta { color: var(--copper) !important; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--graphite); color: var(--paper);
  padding: clamp(3.5rem, 12vw, 7rem) 0 clamp(3rem, 9vw, 5.5rem);
}
.conduit-trace { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.5; }
.conduit-path {
  fill: none; stroke: var(--copper); stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 12 1400; stroke-dashoffset: 0;
  animation: current-flow 6s linear infinite;
}
.conduit-path--2 { stroke: var(--conductor); opacity: 0.7; animation-duration: 8s; animation-delay: 1.2s; }
@keyframes current-flow { to { stroke-dashoffset: -1412; } }

.hero-inner { position: relative; z-index: 1; max-width: 720px; }
.hero-title { font-size: clamp(2.4rem, 9vw, 4.6rem); font-weight: 900; }
.hero-title-accent { color: var(--copper-bright); }
.hero-lead { font-size: clamp(1rem, 2.6vw, 1.2rem); color: rgba(244,241,235,.82); margin: 1.4rem 0 2rem; max-width: 52ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.hero .btn-ghost { color: var(--paper); }
.hero-note { color: rgba(244,241,235,.55); margin-top: 1.6rem; }

/* ---------- Trust strip ---------- */
.trust { background: var(--graphite-700); color: var(--paper); border-top: 1px solid var(--line-light); }
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-light); }
.trust-item { background: var(--graphite-700); padding: 1.3rem var(--gap); display: flex; flex-direction: column; gap: 0.35rem; }
.trust-num { color: var(--copper-bright); font-size: 0.95rem; font-weight: 600; }
.trust-label { font-size: 0.9rem; color: rgba(244,241,235,.78); line-height: 1.35; }

/* ---------- Generic section ---------- */
.section { padding: var(--section-y) 0; }
.section-head { max-width: 640px; margin: 0 auto clamp(2rem, 5vw, 3rem); text-align: center; }
.section-head--left { text-align: left; margin-left: 0; margin-right: 0; }
.section-title { font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 800; }
.section-title--light { color: var(--paper); }
.section-sub { color: rgba(26,29,34,.7); font-size: 1.05rem; margin: 0.9rem 0 0; }
.section-sub--light { color: rgba(244,241,235,.78); }

/* ---------- Service cards ---------- */
.card-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; position: relative;
  border-left: 3px solid var(--copper);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(32,36,42,.1); }
.card h3 { font-size: 1.18rem; font-weight: 700; margin-bottom: 0.45rem; }
.card p { margin: 0; color: rgba(26,29,34,.72); font-size: 0.96rem; }
.card-tag { display: inline-block; margin-top: 0.9rem; color: var(--copper); }

/* ---------- Commercial credibility ---------- */
.commercial { background: var(--graphite); color: var(--paper); }
.commercial-inner { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 6vw, 3.5rem); align-items: center; }
.commercial-list { list-style: none; padding: 0; margin: 1.6rem 0 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.commercial-list li { color: var(--copper-bright); padding-left: 1.1rem; position: relative; }
.commercial-list li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 6px; background: var(--copper); border-radius: 1px; }
.commercial-proof { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; gap: 0.7rem; }
.proof-shot { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-light); }
.proof-shot img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.proof-shot--a { grid-row: span 2; }
.proof-shot--a img { aspect-ratio: 3 / 5; }

/* ---------- Gallery ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-bottom: 1.8rem; }
.filter-btn {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.5rem 0.9rem; border: 1px solid var(--line); border-radius: 999px;
  background: #fff; cursor: pointer; transition: all .15s ease;
}
.filter-btn:hover { border-color: var(--copper); }
.filter-btn.is-active { background: var(--graphite); color: var(--paper); border-color: var(--graphite); }
.gallery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.gallery-tile {
  position: relative; overflow: hidden; border-radius: var(--radius);
  aspect-ratio: 3 / 4; background: var(--graphite-500);
}
.gallery-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.gallery-tile:hover img { transform: scale(1.05); }
.gallery-tile figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.4rem 0.8rem 0.7rem; color: #fff;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase;
  background: linear-gradient(to top, rgba(20,22,26,.85), transparent);
}

/* ---------- Estimator ---------- */
.estimate { background: var(--paper-200); }
.estimate-inner { display: grid; grid-template-columns: 1fr; gap: clamp(1.6rem, 4vw, 2.5rem); align-items: start; }
.estimator { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: clamp(1.2rem, 4vw, 2rem); }
.estimator-steps {
  display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; list-style: none; margin: 0 0 1.6rem; padding: 0 0 1.2rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(26,29,34,.4);
}
.estimator-steps li { display: flex; align-items: center; gap: 0.4rem; }
.estimator-steps li span { color: rgba(26,29,34,.3); }
.estimator-steps li.is-active { color: var(--ink); }
.estimator-steps li.is-active span { color: var(--copper); }
.estimator-steps li.is-done span { color: var(--conductor); }

.q-title { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; margin: 0 0 1.1rem; }
.option-grid { display: grid; grid-template-columns: 1fr; gap: 0.6rem; }
.option {
  display: flex; align-items: center; justify-content: space-between; gap: 0.8rem; text-align: left;
  padding: 0.95rem 1.1rem; border: 1.5px solid var(--line); border-radius: var(--radius);
  background: #fff; cursor: pointer; font-size: 1rem; font-weight: 500; transition: all .12s ease;
}
.option:hover { border-color: var(--copper); }
.option.is-selected { border-color: var(--copper); background: rgba(184,115,51,.07); }
.option .opt-meta { font-family: var(--font-mono); font-size: 0.7rem; color: rgba(26,29,34,.45); letter-spacing: 0.05em; }
.estimator-nav { display: flex; justify-content: space-between; margin-top: 1.5rem; gap: 0.8rem; }
.estimator-field label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.95rem; }
.estimator-field input {
  width: 100%; padding: 0.8rem 0.9rem; border: 1.5px solid var(--line); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 1rem;
}
.estimator-field input:focus { border-color: var(--copper); outline: none; }
.estimator-field + .estimator-field { margin-top: 1rem; }

/* Result */
.estimator-result { text-align: center; }
.result-label { color: var(--copper); margin: 0 0 0.6rem; }
.result-tag { color: var(--conductor); margin: 0 0 0.5rem; }

/* ---------- Schedule / booking ---------- */
.schedule { background: var(--paper-200); }
.schedule-box { max-width: 760px; margin: 0 auto; text-align: center; }
.schedule-embed { width: 100%; min-height: 620px; border: 0; border-radius: 8px; background: #fff; box-shadow: 0 8px 30px rgba(32,36,42,.08); }
.schedule-fallback { font-size: 1.05rem; color: rgba(26,29,34,.78); margin: 0; }
.schedule-fallback strong { color: var(--graphite); }
.result-range { font-family: var(--font-display); font-weight: 900; font-size: clamp(2rem, 8vw, 3.2rem); color: var(--graphite); margin: 0; }
.result-range--small { font-size: clamp(1.3rem, 4.5vw, 1.9rem); font-weight: 700; }
.result-disclaimer { color: rgba(26,29,34,.65); font-size: 0.92rem; max-width: 46ch; margin: 0.8rem auto 1.6rem; }
.result-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; }

/* Contractor demo */
.contractor-demo { margin-top: 2rem; border-top: 1px dashed var(--line); padding-top: 1.4rem; text-align: left; }
.contractor-toggle {
  width: 100%; text-align: left; background: var(--graphite); color: var(--paper);
  border: 0; border-radius: var(--radius); padding: 0.85rem 1rem; cursor: pointer;
  font-family: var(--font-body); font-size: 0.9rem;
}
.contractor-toggle [data-spec] { color: var(--copper-bright); }
.contractor-panel { margin-top: 0.8rem; background: var(--graphite-700); color: var(--paper); border-radius: var(--radius); padding: 1.1rem; }
.contractor-note { font-size: 0.82rem; color: rgba(244,241,235,.6); margin: 0 0 1rem; line-height: 1.5; }
.contractor-summary { display: grid; grid-template-columns: auto 1fr; gap: 0.5rem 1rem; margin: 0; font-size: 0.9rem; }
.contractor-summary dt { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(244,241,235,.5); }
.contractor-summary dd { margin: 0; color: var(--paper); }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 3rem); }
.contact-points { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: 0.6rem; color: var(--copper); }
.contact-form { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: clamp(1.2rem, 4vw, 1.8rem); }
.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.92rem; }
.field input, .field textarea {
  width: 100%; padding: 0.8rem 0.9rem; border: 1.5px solid var(--line); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 1rem; resize: vertical;
}
.field input:focus, .field textarea:focus { border-color: var(--copper); outline: none; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 0; }
.form-status { font-size: 0.9rem; margin: 0.8rem 0 0; min-height: 1.2em; }
.form-status.is-ok { color: var(--conductor); font-weight: 600; }
.form-status.is-err { color: #b3261e; font-weight: 600; }
.form-fineprint { font-size: 0.78rem; color: rgba(26,29,34,.5); margin: 0.7rem 0 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--graphite); color: var(--paper); padding: clamp(2.5rem, 6vw, 3.5rem) 0 1.5rem; }
.footer-inner { display: grid; gap: 1.6rem; }
.footer-tag { color: var(--copper-bright); font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.08em; margin: 0.5rem 0 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer-nav a { color: rgba(244,241,235,.78); font-weight: 600; font-size: 0.92rem; }
.footer-nav a:hover { color: var(--copper-bright); }
.footer-area { color: rgba(244,241,235,.45); }
.footer-legal { text-align: center; color: rgba(244,241,235,.4); font-size: 0.78rem; margin: 2rem 0 0; padding-top: 1.2rem; border-top: 1px solid var(--line-light); }

/* =========================================================
   RESPONSIVE — tablet / desktop
   ========================================================= */
@media (min-width: 720px) {
  .field-row { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .nav-menu {
    position: static; display: flex; flex-direction: row; align-items: center; gap: 1.6rem;
    padding: 0; background: none; border: 0;
  }
  .nav-menu li { border: 0; }
  .nav-menu a { padding: 0; font-weight: 600; }
  .nav-cta { border: 1.5px solid var(--copper); border-radius: var(--radius); padding: 0.5rem 1rem !important; }

  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .commercial-inner { grid-template-columns: 1.05fr 0.95fr; }
  .estimate-inner { grid-template-columns: 0.85fr 1.15fr; }
  .contact-inner { grid-template-columns: 0.8fr 1.2fr; }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================
   Reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .conduit-path { animation: none; stroke-dasharray: none; opacity: 0.4; }
  .gallery-tile img, .card, .btn { transition: none; }
}