/* DMI demo preview — shared brand stylesheet.
   Industrial blue/steel palette. No copyrighted DMI assets referenced. */

:root {
  --dmi-navy: #0b2545;
  --dmi-blue: #134a8e;
  --dmi-accent: #f6a821;
  --dmi-steel: #5d6b7a;
  --dmi-light: #f4f6f8;
  --dmi-border: #d8dee5;
  --dmi-text: #1c2733;
  --dmi-white: #ffffff;
  --radius: 6px;
  --maxw: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--dmi-text);
  line-height: 1.6;
  background: var(--dmi-white);
}

a { color: var(--dmi-blue); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

img, svg { max-width: 100%; height: auto; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--dmi-navy);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--dmi-navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.brand { display: flex; align-items: center; gap: 0.6rem; color: #fff; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--dmi-accent);
  color: var(--dmi-navy);
  font-weight: 800;
  border-radius: var(--radius);
  letter-spacing: 0.5px;
}
.brand-text { font-weight: 700; font-size: 1.05rem; letter-spacing: 0.3px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 26px;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition: 0.2s;
}

.site-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a,
.dropdown-toggle {
  display: block;
  color: #e7edf5;
  padding: 0.6rem 0.8rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius);
  background: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
}
.site-nav a:hover,
.site-nav a:focus,
.dropdown-toggle:hover,
.dropdown-toggle:focus {
  background: rgba(255,255,255,0.12);
  text-decoration: none;
  color: #fff;
}
.nav-cta {
  background: var(--dmi-accent) !important;
  color: var(--dmi-navy) !important;
  font-weight: 700 !important;
}
.nav-cta:hover { filter: brightness(1.05); }

.has-dropdown { position: relative; }
.dropdown-toggle::after { content: " \25BE"; font-size: 0.7em; }
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--dmi-border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  list-style: none;
  margin: 0.25rem 0 0;
  padding: 0.35rem;
  display: none;
}
.has-dropdown.open .dropdown-menu { display: block; }
.dropdown-menu a {
  color: var(--dmi-text);
  padding: 0.5rem 0.75rem;
}
.dropdown-menu a:hover { background: var(--dmi-light); color: var(--dmi-navy); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--dmi-navy), var(--dmi-blue));
  color: #fff;
  padding: 4rem 0;
}
.hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); margin: 0 0 1rem; line-height: 1.15; }
.hero p { font-size: 1.15rem; max-width: 640px; color: #dce6f3; }
.hero .btn { margin-top: 1.5rem; }

.btn {
  display: inline-block;
  background: var(--dmi-accent);
  color: var(--dmi-navy);
  font-weight: 700;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius);
  border: 0;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

/* ---------- Page body ---------- */
main { display: block; }
.section { padding: 3rem 0; }
.section h2 { font-size: 1.8rem; color: var(--dmi-navy); margin-top: 0; }
.lead { font-size: 1.15rem; color: var(--dmi-steel); max-width: 760px; }

.breadcrumb {
  background: var(--dmi-light);
  border-bottom: 1px solid var(--dmi-border);
  font-size: 0.9rem;
  padding: 0.6rem 0;
}
.breadcrumb a { color: var(--dmi-steel); }

.page-head {
  background: var(--dmi-light);
  border-bottom: 1px solid var(--dmi-border);
  padding: 2.5rem 0;
}
.page-head h1 { margin: 0 0 0.5rem; color: var(--dmi-navy); font-size: clamp(1.6rem, 3vw, 2.4rem); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.card {
  border: 1px solid var(--dmi-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: #fff;
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: 0 8px 24px rgba(11,37,69,0.12); transform: translateY(-2px); }
.card h3 { margin-top: 0; color: var(--dmi-navy); }

.placeholder-img {
  display: grid;
  place-items: center;
  background: repeating-linear-gradient(45deg, #eef1f4, #eef1f4 12px, #e3e8ee 12px, #e3e8ee 24px);
  border: 1px dashed var(--dmi-steel);
  border-radius: var(--radius);
  color: var(--dmi-steel);
  font-size: 0.85rem;
  text-align: center;
  aspect-ratio: 16 / 9;
  margin-bottom: 1rem;
  padding: 1rem;
}
.product-img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.callout {
  background: var(--dmi-light);
  border-left: 4px solid var(--dmi-accent);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 2rem 0;
}

.timeline { list-style: none; padding: 0; margin: 2rem 0 0; }
.timeline li {
  border-left: 3px solid var(--dmi-blue);
  padding: 0 0 1.5rem 1.5rem;
  position: relative;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--dmi-accent);
}
.timeline h3 { margin: 0 0 0.25rem; color: var(--dmi-navy); }

/* ---------- Contact form ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--dmi-border);
  border-radius: var(--radius);
  font: inherit;
  background: #fff;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--dmi-blue);
  outline-offset: 1px;
  border-color: var(--dmi-blue);
}
.form-note { font-size: 0.9rem; color: var(--dmi-steel); }
.form-status {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: #fff6e6;
  border: 1px solid var(--dmi-accent);
  display: none;
}
.form-status.show { display: block; }

.contact-info p { margin: 0.4rem 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dmi-navy);
  color: #cdd8e6;
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr; gap: 2rem; }
.site-footer .brand-text { color: #fff; display: block; margin-bottom: 0.5rem; }
.footer-nav { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-nav a { color: #cdd8e6; }
.placeholder-note { font-size: 0.82rem; color: #8ea3bd; font-style: italic; }
.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 1rem;
  padding-top: 1rem;
  font-size: 0.82rem;
  color: #8ea3bd;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--dmi-navy);
    border-top: 1px solid rgba(255,255,255,0.12);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .site-nav.open { max-height: 80vh; overflow: auto; }
  .site-nav .nav-list { flex-direction: column; align-items: stretch; padding: 0.5rem; gap: 0.15rem; }
  .dropdown-menu { position: static; box-shadow: none; border: 0; background: rgba(255,255,255,0.06); }
  .dropdown-menu a { color: #e7edf5; }
  .dropdown-menu a:hover { background: rgba(255,255,255,0.12); color: #fff; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}