:root {
  --white: #ffffff;
  --bg: #f7f8fa;
  --bg-alt: #eef1f5;
  --ink: #1a1d23;
  --text: #2c3140;
  --muted: #5c6370;
  --line: #e2e6ec;
  --red: #c4161c;
  --red-soft: #f8e6e7;
  --shadow: 0 8px 30px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.12);
  --radius: 16px;
  --max: 1140px;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --display: "Barlow Condensed", "Inter", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
}
img, video { max-width: 100%; display: block; }
a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.center { text-align: center; }
.eyebrow {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: 13px;
  color: var(--red);
  margin: 0 0 8px;
}
h1, h2, h3 { font-family: var(--display); color: var(--ink); line-height: 1.1; margin: 0 0 .5em; }
h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; text-transform: uppercase; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 14px 26px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: 14px;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; }
.btn.ghost {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}
.btn.ghost:hover { background: rgba(255,255,255,.1); }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand img { height: 42px; width: auto; }
.nav-links { display: flex; gap: 14px; align-items: center; font-weight: 600; font-size: 12.5px; letter-spacing: .02em; text-transform: uppercase; color: var(--ink); flex-wrap: nowrap; white-space: nowrap; }
.nav-links a { color: var(--ink); text-decoration: none; }
.nav-links a:hover { color: var(--red); }
.menu-btn { display: none; background: none; border: 1px solid var(--line); padding: 8px 14px; border-radius: 8px; }

/* HERO — full-bleed overlay style */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: #111 url('../assets/field/night-fire-web.jpg') center/cover no-repeat;
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.75) 0%, rgba(0,0,0,.45) 55%, rgba(0,0,0,.2) 100%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero h1 { color: #fff; }
.hero-marks {
  margin: 8px 0 18px;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.15;
  text-transform: uppercase;
  color: #fff;
}
.hero p { color: rgba(255,255,255,.9); max-width: 36em; font-size: 19px; }
.hero .price { font-family: var(--display); font-size: 48px; font-weight: 800; color: #fff; margin: 16px 0 8px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }

/* SECTIONS */
section { padding: 90px 0; }
.section-alt { background: var(--bg); }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-header p { color: var(--muted); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card h3 { margin-bottom: 8px; }

.feature-icon {
  width: 52px; height: 52px;
  background: var(--red-soft);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 14px;
  color: var(--red);
}

.product-shots {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.product-shots img {
  width: 100%; height: 380px; object-fit: cover; object-position: center top;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.product-shots figcaption { margin-top: 10px; font-size: 14px; color: var(--muted); text-align: center; }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.spec-table th { width: 32%; font-weight: 700; color: var(--ink); background: var(--bg); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

.diagram {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-top: 28px;
  background: #fff;
}

video {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #000;
}
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.gallery img { height: 180px; object-fit: cover; border-radius: 12px; box-shadow: var(--shadow); }

.price-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--red);
}
.price-card .price { font-family: var(--display); font-size: 56px; font-weight: 800; color: var(--ink); margin: 0; }

form { display: grid; gap: 14px; }
label { font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
input, select, textarea {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.proposal-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin: 8px 0 20px; }
.proposal-sheet {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  white-space: pre-wrap;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  overflow-x: auto;
}
.success.show { display: block; }

footer {
  background: var(--ink);
  color: #c8ccd4;
  padding: 48px 0 32px;
  font-size: 14px;
}
footer a { color: #fff; }
.foot-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.legal { max-width: 640px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: #fff; padding: 20px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .menu-btn { display: block; }
  .grid-2, .grid-3, .grid-4, .product-shots, .form-row, .gallery { grid-template-columns: 1fr; }
  .hero { min-height: 70vh; background-position: center top; }
  .product-shots img { height: 280px; }
}