* {
  box-sizing: border-box;
}

:root {
  --bg: #0b0b0b;
  --panel: #141414;
  --panel-soft: #1a1a1a;
  --text: #f4f4f4;
  --muted: #b7b7b7;
  --line: rgba(255, 204, 0, 0.14);
  --brand: #ffcc00;
  --brand-dark: #111111;
  --radius: 24px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.container {
  width: min(92%, 1180px);
  margin: 0 auto;
}

.narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 7, 7, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  color: var(--brand);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  list-style: none;
  gap: 26px;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--text);
  font-size: 0.96rem;
  position: relative;
}

.nav a.active,
.nav a:hover,
.text-link:hover {
  color: var(--brand);
}

.hero,
.page-hero {
  position: relative;
  overflow: hidden;
}

.hero-home {
  min-height: 84vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(120deg, rgba(0,0,0,0.8) 20%, rgba(0,0,0,0.38) 100%),
    url('images/hero-home.jpg') center/cover no-repeat;
}

.page-hero-service {
  background:
    linear-gradient(120deg, rgba(0,0,0,0.82) 20%, rgba(0,0,0,0.42) 100%),
    url('images/hero-service.jpg') center/cover no-repeat;
}

.page-hero-install {
  background:
    linear-gradient(120deg, rgba(0,0,0,0.82) 20%, rgba(0,0,0,0.42) 100%),
    url('images/hero-install.jpg') center/cover no-repeat;
}

.page-hero {
  min-height: 54vh;
  display: flex;
  align-items: end;
}

.hero-shade,
.page-hero-shade {
  position: absolute;
  inset: 0;
}

.hero-grid,
.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 30px;
  align-items: end;
  padding: 90px 0 70px;
}

.hero-copy h1,
.page-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2.5rem, 5vw, 4.7rem);
  line-height: 1.05;
  max-width: 760px;
}

.hero-inner {
  padding: 110px 0 70px;
}

.eyebrow,
.section-tag,
.panel-label {
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: 0.78rem;
  font-weight: 700;
}

.lead {
  max-width: 680px;
  font-size: 1.08rem;
  color: #ececec;
}

.hero-buttons,
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.glass-panel {
  background: rgba(18