/* =========================================================
   Partsworxs Home Services — Design Tokens
   Palette: charcoal base, steel-blue support, safety-orange accent
   Type: Archivo (display) + Inter (body)
   Signature: appliance-nameplate "spec panel" motif
========================================================= */

:root {
  --color-bg: #F7F5F1;
  --color-ink: #1E2228;
  --color-ink-soft: #3A3F47;
  --color-steel: #3B6E8F;
  --color-steel-dark: #2C5670;
  --color-accent: #E8742C;
  --color-accent-dark: #C75F1E;
  --color-slate: #6B7280;
  --color-line: #DEDAD2;
  --color-panel: #20252C;
  --color-panel-line: #394049;

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --max-width: 1140px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

/* =========================================================
   Reset & Base
========================================================= */
*, *::before, *::after { box-sizing: border-box; }

html { 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;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover { text-decoration: underline; }

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

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.15;
  margin: 0 0 var(--space-2) 0;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; margin-top: var(--space-5); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); font-weight: 600; margin-top: var(--space-3); color: var(--color-steel-dark); }

p { margin: 0 0 var(--space-2) 0; color: var(--color-ink-soft); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* =========================================================
   Buttons
========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); }

.btn-ghost {
  background: transparent;
  color: var(--color-bg);
  border-color: rgba(247,245,241,0.35);
}
.btn-ghost:hover { border-color: var(--color-bg); background: rgba(247,245,241,0.08); }

.btn-small { padding: 0.6rem 1.1rem; font-size: 0.85rem; }

.btn-full { width: 100%; margin-top: var(--space-3); }

/* =========================================================
   Header
========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-ink);
  margin-right: auto;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-ink);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.brand-text { font-size: 1.05rem; }
.brand-sub {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.main-nav {
  display: flex;
  gap: var(--space-3);
}

.main-nav a {
  color: var(--color-ink-soft);
  font-weight: 500;
  font-size: 0.92rem;
}

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--color-ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* =========================================================
   Hero
========================================================= */
.hero {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: var(--space-6) 0 var(--space-5);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-5);
  align-items: start;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-2) 0;
}

.eyebrow-light { color: var(--color-accent); }

.hero h1 { color: #fff; }

.hero-lead {
  font-size: 1.1rem;
  color: #C9CDD4;
  max-width: 46ch;
}
.hero-lead strong { color: #fff; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* Signature: spec panel (appliance nameplate motif) */
.spec-panel {
  background: var(--color-panel);
  border: 1px solid var(--color-panel-line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-family: var(--font-body);
}

.spec-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-2);
  border-bottom: 1px dashed var(--color-panel-line);
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-id { color: var(--color-slate); }
.spec-status { color: var(--color-accent); }

.spec-grid {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-panel-line);
}
.spec-row:last-child { border-bottom: none; padding-bottom: 0; }

.spec-row dt {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.spec-row dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.spec-row dd a { color: #fff; }

/* =========================================================
   Content Section
========================================================= */
.content-section {
  padding: var(--space-6) 0 var(--space-4);
  max-width: 780px;
}

.content-section h2:first-of-type { margin-top: var(--space-2); }

.content-section p,
.content-section li {
  font-size: 1.05rem;
}

/* =========================================================
   Contact Section
========================================================= */
.contact-section {
  background: var(--color-steel);
  background-image: linear-gradient(135deg, var(--color-steel) 0%, var(--color-steel-dark) 100%);
  color: #fff;
  padding: var(--space-6) 0;
  margin-top: var(--space-4);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.contact-copy h2 { color: #fff; margin-top: 0; }
.contact-copy p { color: #E4ECF1; max-width: 40ch; }

.spec-panel-contact .spec-row dd a { color: #fff; }

/* =========================================================
   Footer
========================================================= */
.site-footer {
  background: var(--color-ink);
  color: #B8BCC2;
  padding: var(--space-3) 0 calc(var(--space-3) + 60px);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: 0.85rem;
}

.footer-inner a { color: var(--color-accent); }

/* =========================================================
   Mobile sticky call bar
========================================================= */
.mobile-call-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: var(--color-accent);
  color: #fff;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem;
  text-decoration: none;
  box-shadow: 0 -4px 14px rgba(0,0,0,0.18);
}

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    padding: var(--space-2) var(--space-3) var(--space-3);
    gap: var(--space-2);
  }

  .hero { padding: var(--space-5) 0 var(--space-4); }
  .content-section { padding: var(--space-5) 0 var(--space-4); }
  .contact-section { padding: var(--space-5) 0; }

  .mobile-call-bar { display: block; }
  .site-footer { padding-bottom: calc(var(--space-3) + 56px); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
}