/* ============================================================
   Skyline Mechanical Contracting — smc.ca
   Palette (from logo): Royal Navy #101A40 | Steel Grey #6E7681
            Accent Red #CE1126 | Royal Blue #4A6BD4 | White #FFFFFF
   Type: Bricolage Grotesque (display) / Public Sans (body)
         IBM Plex Mono (technical labels)
   ============================================================ */

:root {
  /* Palette derived from the Skyline Mechanical Contracting logo:
     royal navy skyline, steel-grey towers, red sun accent */
  --navy-900: #0B1230;
  --navy-800: #101A40;
  --navy-700: #182658;
  --navy-600: #223474;
  --sky-400: #4A6BD4;   /* royal blue accent (lines, labels, links) */
  --sky-300: #7C97E8;
  --red-500: #CE1126;   /* logo red — reserved for primary CTAs */
  --red-400: #E43A4A;
  --steel-500: #6E7681; /* logo grey */
  --ice-100: #EDF1F8;
  --white: #ffffff;
  --text-dark: #17203A;
  --text-mid: #4B5568;
  --radius: 10px;
  --max-w: 1180px;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Public Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Mono eyebrow labels (signature) ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sky-400);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--sky-400);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(8, 21, 39, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(124, 151, 232, 0.12);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
}
.brand-mark {
  height: 46px;
  width: auto;
  flex: none;
  background: var(--white);
  border-radius: 8px;
  padding: 2px 6px;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.1;
  letter-spacing: 0.01em;
}
.brand-name span {
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--sky-300);
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--ice-100);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--sky-300);
  border-color: var(--sky-400);
}
.nav-cta {
  background: var(--red-500);
  color: var(--white) !important;
  font-weight: 700;
  padding: 10px 20px !important;
  border-radius: 999px;
  border: none !important;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: var(--red-400); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ice-100);
  margin: 5px 0;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(74, 107, 212, 0.28), transparent 60%),
    radial-gradient(800px 500px at -10% 110%, rgba(34, 52, 116, 0.9), transparent 60%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: var(--white);
  padding: 168px 0 110px;
  overflow: hidden;
}
.hero-duct {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 48px;
  align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 18px 0 20px;
}
.hero h1 em {
  font-style: normal;
  color: var(--sky-300);
}
.hero p.lede {
  font-size: 1.1rem;
  color: #C3CBE3;
  max-width: 46ch;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 14px 28px;
  border-radius: 999px;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
}
.btn-primary {
  background: var(--red-500);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(206, 17, 38, 0.35);
}
.btn-primary:hover { background: var(--red-400); transform: translateY(-2px); }
.btn-ghost {
  border: 1px solid rgba(124, 151, 232, 0.45);
  color: var(--ice-100);
}
.btn-ghost:hover { border-color: var(--sky-300); color: var(--sky-300); }

/* Hero spec card */
.spec-card {
  background: rgba(10, 28, 51, 0.72);
  border: 1px solid rgba(124, 151, 232, 0.22);
  border-radius: var(--radius);
  padding: 26px 26px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #A3AFD2;
  backdrop-filter: blur(6px);
}
.spec-card h3 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--sky-300);
  margin-bottom: 18px;
}
.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 9px 0;
  border-top: 1px dashed rgba(124, 151, 232, 0.18);
}
.spec-row strong { color: var(--white); font-weight: 500; }

/* Trust strip */
.trust {
  background: var(--navy-700);
  color: #B4BEDC;
  border-top: 1px solid rgba(124, 151, 232, 0.14);
}
.trust-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 26px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 14px 0 14px;
}
.section-head p { color: var(--text-mid); font-size: 1.02rem; }

.section-alt { background: var(--ice-100); }

/* Services grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.card {
  background: var(--white);
  border: 1px solid #DBE1EF;
  border-radius: var(--radius);
  padding: 30px 28px;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--sky-400);
  box-shadow: 0 16px 36px rgba(10, 28, 51, 0.1);
}
.card .icon {
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  color: var(--sky-400);
}
.card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.16rem;
  margin-bottom: 10px;
}
.card p { color: var(--text-mid); font-size: 0.95rem; }
.card .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sky-400);
  display: block;
  margin-top: 18px;
}

/* Audience band */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.audience .card { background: var(--navy-800); border-color: var(--navy-600); color: var(--ice-100); }
.audience .card h3 { color: var(--white); }
.audience .card p { color: #B4BEDC; }
.audience .card:hover { border-color: var(--sky-400); }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  text-align: center;
}
.stat h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.4rem;
  color: var(--navy-800);
}
.stat h3 span { color: var(--red-500); }
.stat p {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-top: 6px;
}

/* Testimonials */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.quote {
  background: var(--white);
  border: 1px solid #DBE1EF;
  border-left: 3px solid var(--red-500);
  border-radius: var(--radius);
  padding: 28px;
}
.quote p { font-size: 0.97rem; color: var(--text-dark); margin-bottom: 18px; }
.quote footer {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mid);
}
.quote footer strong { color: var(--navy-700); display: block; margin-bottom: 2px; }

/* Portfolio cards */
.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.work {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #DBE1EF;
  background: var(--white);
  transition: transform 0.25s, box-shadow 0.25s;
}
.work:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(10, 28, 51, 0.12); }
.work-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sky-300);
}
.work-thumb svg { width: 56px; height: 56px; opacity: 0.85; }
.work-body { padding: 22px 24px 24px; }
.work-body h3 { font-family: var(--font-display); font-size: 1.08rem; font-weight: 700; margin-bottom: 6px; }
.work-body p { color: var(--text-mid); font-size: 0.92rem; }
.work-specs {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed #C7CFE4;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-mid);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

/* CTA band */
.cta-band {
  background:
    radial-gradient(900px 400px at 85% 0%, rgba(74, 107, 212, 0.3), transparent 60%),
    linear-gradient(160deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  border-radius: 16px;
  padding: 64px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  max-width: 22ch;
}
.cta-band p { color: #B4BEDC; margin-top: 10px; max-width: 46ch; }

/* Contact / form */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: start;
}
.contact-info h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  margin: 26px 0 6px;
}
.contact-info p { color: var(--text-mid); }
.contact-info .mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--navy-700);
}
.form {
  background: var(--white);
  border: 1px solid #DBE1EF;
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: 0 20px 50px rgba(10, 28, 51, 0.08);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 7px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 12px 14px;
  border: 1px solid #C7CFE4;
  border-radius: 8px;
  background: #FBFDFF;
  color: var(--text-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--sky-400);
  box-shadow: 0 0 0 3px rgba(74, 107, 212, 0.2);
}
.field textarea { resize: vertical; min-height: 120px; }
.form .btn { width: 100%; justify-content: center; border: none; cursor: pointer; font-family: var(--font-body); }
.form-note { font-size: 0.8rem; color: var(--text-mid); margin-top: 14px; text-align: center; }

/* Page hero (inner pages) */
.page-hero {
  background:
    radial-gradient(900px 420px at 85% -20%, rgba(74, 107, 212, 0.24), transparent 60%),
    linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color: var(--white);
  padding: 150px 0 72px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  letter-spacing: -0.02em;
  margin-top: 14px;
}
.page-hero p { color: #B4BEDC; max-width: 56ch; margin-top: 14px; font-size: 1.05rem; }

/* Split section (residential/commercial) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.split .panel {
  border-radius: var(--radius);
  padding: 38px 34px;
  border: 1px solid #DBE1EF;
}
.panel-res { background: var(--white); }
.panel-com { background: var(--navy-800); color: var(--ice-100); border-color: var(--navy-600); }
.panel h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; margin: 12px 0 16px; }
.panel ul { list-style: none; }
.panel li {
  padding: 10px 0 10px 28px;
  position: relative;
  font-size: 0.96rem;
  border-top: 1px dashed rgba(124, 151, 232, 0.25);
}
.panel-res li { color: var(--text-mid); border-color: #D3DAEB; }
.panel-com li { color: #B4BEDC; }
.panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 14px;
  height: 2px;
  background: var(--sky-400);
}

/* Footer */
.footer {
  background: var(--navy-900);
  color: #8C96B8;
  padding: 64px 0 32px;
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(124, 151, 232, 0.12);
}
.footer h4 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sky-300);
  margin-bottom: 16px;
}
.footer ul { list-style: none; }
.footer li { margin-bottom: 10px; }
.footer a { color: #B4BEDC; text-decoration: none; transition: color 0.2s; }
.footer a:hover { color: var(--sky-300); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 26px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }

.air-line {
  stroke-dasharray: 6 10;
  animation: airflow 2.6s linear infinite;
}
@keyframes airflow {
  to { stroke-dashoffset: -64; }
}

:focus-visible {
  outline: 2px solid var(--sky-400);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up { opacity: 1; transform: none; transition: none; }
  .air-line { animation: none; }
  .card, .work, .btn { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .spec-card { max-width: 480px; }
  .grid-3, .audience, .quote-grid, .work-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .contact-grid, .split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-links {
    position: fixed;
    top: 68px;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--navy-900);
    border-bottom: 1px solid rgba(124, 151, 232, 0.14);
    padding: 12px 24px 20px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 13px 0; width: 100%; border-bottom: none; }
  .nav-links .nav-cta { display: inline-block; margin-top: 10px; text-align: center; }
  .nav-toggle { display: block; }
  .grid-3, .audience, .quote-grid, .work-grid { grid-template-columns: 1fr; }
  .hero { padding: 130px 0 80px; }
  .section { padding: 68px 0; }
  .cta-band { padding: 44px 28px; }
  .form-row { grid-template-columns: 1fr; }
  .form { padding: 26px 20px; }
}