/* STEELTECH-DUO — industrial landing. Dark steel + molten-orange accent. */

:root {
  --bg: #0b0d10;
  --bg-2: #0f1216;
  --surface: #14181e;
  --surface-2: #1b2027;
  --border: #272d36;
  --text: #e9edf3;
  --muted: #9aa3b0;
  --accent: #ff6a1a;
  --accent-2: #ff8c42;
  --accent-soft: rgba(255, 106, 26, 0.14);
  --accent-glow: rgba(255, 106, 26, 0.35);
  --maxw: 1140px;
  --display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ── Typography helpers ─────────────────────────────────────────── */
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.06; letter-spacing: 0.5px; text-transform: uppercase; }
.eyebrow {
  font-family: var(--display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}
.accent-text { color: var(--accent); }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 14px;
  padding: 12px 22px;
  border-radius: 4px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.btn-lg { padding: 15px 30px; font-size: 15px; }
.btn-accent { background: var(--accent); color: #10120f; box-shadow: 0 6px 24px var(--accent-glow); }
.btn-accent:hover { background: var(--accent-2); transform: translateY(-2px); }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 16, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.site-header.scrolled { border-bottom-color: var(--border); background: rgba(11, 13, 16, 0.92); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-text { font-family: var(--display); font-weight: 700; font-size: 20px; letter-spacing: 1px; text-transform: uppercase; }
.brand-dash { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-family: var(--display); font-weight: 500; text-transform: uppercase; letter-spacing: 1px; font-size: 14px; color: var(--muted); transition: color 0.15s ease; }
.nav a:hover { color: var(--text); }
.nav .nav-cta { color: #10120f; }
.nav .nav-cta:hover { color: #10120f; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ───────────────────────────────────────────────────────── */
.hero { position: relative; min-height: 88vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.05); }
.hero-overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 15% 20%, rgba(255, 106, 26, 0.18), transparent 55%),
    linear-gradient(180deg, rgba(11, 13, 16, 0.72) 0%, rgba(11, 13, 16, 0.82) 55%, var(--bg) 100%);
}
.hero-inner { position: relative; padding: 90px 24px; max-width: 820px; }
.hero h1 { font-size: clamp(42px, 8vw, 84px); margin-bottom: 22px; letter-spacing: 1px; }
.hero-sub { font-size: clamp(16px, 2.2vw, 20px); color: #cfd5de; max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }
.hero-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-badges li {
  font-family: var(--display); font-weight: 500; text-transform: uppercase; letter-spacing: 1px; font-size: 13px;
  color: var(--text); padding: 8px 16px; border: 1px solid var(--border);
  border-radius: 999px; background: rgba(255, 255, 255, 0.03);
}
.hero-badges li::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: 9px; vertical-align: middle; }

/* ── Sections ───────────────────────────────────────────────────── */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 620px; margin-bottom: 52px; }
.section-head h2 { font-size: clamp(30px, 5vw, 46px); margin-bottom: 16px; }
.section-lead { color: var(--muted); font-size: 17px; }

/* ── Service cards ──────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px 26px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4); }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 10px;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 20px;
}
.card h3 { font-size: 20px; margin-bottom: 12px; letter-spacing: 0.5px; }
.card p { color: var(--muted); font-size: 15px; }

/* ── Process steps ──────────────────────────────────────────────── */
.steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; counter-reset: none; }
.steps li { position: relative; padding: 28px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.step-no { font-family: var(--display); font-weight: 700; font-size: 40px; color: var(--accent); opacity: 0.9; line-height: 1; display: block; margin-bottom: 14px; }
.steps h3 { font-size: 19px; margin-bottom: 8px; }
.steps p { color: var(--muted); font-size: 14.5px; }

/* ── Gallery ────────────────────────────────────────────────────── */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.gallery figure { position: relative; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4 / 3; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery figure:hover img { transform: scale(1.06); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  font-family: var(--display); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; font-size: 15px;
  padding: 30px 18px 16px;
  background: linear-gradient(180deg, transparent, rgba(11, 13, 16, 0.92));
}

/* ── Contact ────────────────────────────────────────────────────── */
.contact-head { max-width: 620px; margin-bottom: 44px; }
.contact-head h2 { font-size: clamp(30px, 5vw, 46px); margin-bottom: 16px; }
.contact-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-bottom: 36px; }
.contact-card {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 26px 24px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.contact-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); margin-bottom: 8px;
}
.contact-label { font-family: var(--display); text-transform: uppercase; letter-spacing: 1px; font-size: 12px; color: var(--muted); }
.contact-value { font-weight: 600; font-size: 16px; word-break: break-word; }
.contact-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* ── Footer ─────────────────────────────────────────────────────── */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--border); padding-top: 48px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; padding-bottom: 34px; }
.footer-brand .brand-text { font-size: 22px; }
.footer-brand p { color: var(--muted); font-size: 14px; margin-top: 8px; }
.footer-contact p { color: var(--muted); font-size: 15px; }
.footer-contact a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  padding: 20px 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px;
}
.footer-bottom a:hover { color: var(--accent); }

/* ── Scroll reveal ──────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 780px) {
  .nav {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--border);
    padding: 8px 24px 20px;
    transform: translateY(-130%); transition: transform 0.25s ease; pointer-events: none;
  }
  .nav.open { transform: translateY(0); pointer-events: auto; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 16px; }
  .nav .nav-cta { margin-top: 12px; border-bottom: 0; }
  .nav-toggle { display: flex; }
  .section { padding: 68px 0; }
  .hero { min-height: 82vh; }
  .hero-inner { padding: 60px 24px; }
}