/* ============================================================
   GUARDLINE — Rooftop Access & Fall Protection Systems
   Design system: technical spec-sheet / shop-drawing aesthetic.
   Steel, safety-yellow, dimension lines, crop marks.
   ============================================================ */

:root {
  --bg: #edede4;
  --panel: #ffffff;
  --ink: #191b1d;
  --ink-soft: #4b4f52;
  --steel: #3f5468;
  --steel-deep: #263341;
  --safety: #e8a400;
  --safety-deep: #b9820a;
  --line: #c7c9bd;
  --line-strong: #a7aa9c;
  --danger: #a3311f;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------------- Typography ---------------- */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--steel-deep);
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.1rem); line-height: 1.02; letter-spacing: 0.005em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.05rem; letter-spacing: 0.04em; }

p { margin: 0 0 1em; color: var(--ink-soft); max-width: 62ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--safety-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--safety);
  display: inline-block;
}

/* ---------------- Header / Nav ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--steel-deep);
  border-bottom: 3px solid var(--safety);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.03em;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.logo b { color: var(--safety); font-weight: 700; }
.logo span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: #b9c2ca;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

nav.main-nav {
  display: flex;
  gap: 2px;
}

nav.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #d7dde1;
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 2px;
  transition: background 0.15s, color 0.15s;
}
nav.main-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
nav.main-nav a.active { color: var(--safety); }

.nav-cta {
  background: var(--safety);
  color: var(--steel-deep) !important;
  font-weight: 700;
}
.nav-cta:hover { background: #f5b520 !important; color: var(--steel-deep) !important; }

/* ---------------- Buttons ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 2px;
  border: 2px solid var(--steel-deep);
  cursor: pointer;
  transition: transform 0.12s, background 0.15s, color 0.15s;
}

.btn-primary {
  background: var(--safety);
  border-color: var(--safety);
  color: var(--steel-deep);
  font-weight: 700;
}
.btn-primary:hover { background: var(--steel-deep); border-color: var(--steel-deep); color: #fff; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--steel-deep);
}
.btn-ghost:hover { background: var(--steel-deep); color: #fff; }

.btn-light {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.btn-light:hover { background: #fff; color: var(--steel-deep); border-color: #fff; }

/* ---------------- Crop-mark panel (signature motif) ---------------- */

.spec-panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 32px;
}
.spec-panel::before, .spec-panel::after,
.spec-panel .cm-br, .spec-panel .cm-bl {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--steel-deep);
}
.spec-panel::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.spec-panel::after { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.spec-panel .cm-bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.spec-panel .cm-br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ---------------- Sections ---------------- */

section { padding: 84px 0; }
.section-tight { padding: 56px 0; }
.section-steel { background: var(--steel-deep); color: #fff; }
.section-steel h2 { color: #fff; }
.section-steel p { color: #c3ccd2; }

.hairline {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

.dim-rule {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 28px 0;
  color: var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.dim-rule::before, .dim-rule::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-strong);
}

/* ---------------- Grid utilities ---------------- */

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

@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  nav.main-nav { display: none; }
}

/* ---------------- Cards ---------------- */

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 26px;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--steel); transform: translateY(-2px); }

.card .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--safety-deep);
  margin-bottom: 10px;
  display: block;
}

/* ---------------- Footer ---------------- */

footer {
  background: var(--steel-deep);
  color: #b9c2ca;
  padding: 56px 0 28px;
  font-size: 0.9rem;
}
footer h3 { color: #fff; font-size: 0.85rem; }
footer a { text-decoration: none; color: #b9c2ca; }
footer a:hover { color: var(--safety); }
footer .foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
footer .foot-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: #7f8a92;
}
@media (max-width: 880px) {
  footer .foot-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------------- Hazard stripe divider (used once, sparingly) ---------------- */

.hazard-stripe {
  height: 8px;
  background: repeating-linear-gradient(
    -45deg,
    var(--safety),
    var(--safety) 12px,
    var(--steel-deep) 12px,
    var(--steel-deep) 24px
  );
}

/* ---------------- Forms ---------------- */

label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  margin-bottom: 20px;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--steel);
  outline-offset: 1px;
  border-color: var(--steel);
}

textarea { resize: vertical; min-height: 100px; }

/* ---------------- Upload dropzone ---------------- */

.dropzone {
  border: 2px dashed var(--line-strong);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: #fafaf6;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--safety-deep);
  background: #fdf6e6;
}
.dropzone .dz-icon {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--safety-deep);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ---------------- Misc ---------------- */

.kicker-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--line-strong);
}

.two-col-inline { display: flex; gap: 16px; }
.two-col-inline > div { flex: 1; }

@media (max-width: 600px) {
  section { padding: 56px 0; }
  .header-inner { height: 60px; }
}