:root {
  --ink: #172033;
  --muted: #647184;
  --line: #d9e2ef;
  --page: #f5f7fa;
  --white: #ffffff;
  --steel: #1f3d5a;
  --steel-2: #2f5f85;
  --safety: #f4b326;
  --safety-dark: #8a5a07;
  --concrete: #edf2f6;
  --green: #247f68;
  font-family: "Segoe UI", Arial, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--page); color: var(--ink); margin: 0; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(260px, 1fr) auto auto;
  left: 0;
  padding: 14px 34px;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand, .site-header nav, .hero-actions, .signal-band, .site-footer { align-items: center; display: flex; }
.brand { gap: 12px; }
.brand-mark {
  align-items: center;
  background: var(--steel);
  border-radius: 8px;
  color: var(--white);
  display: inline-flex;
  font-weight: 900;
  height: 46px;
  justify-content: center;
  outline: 3px solid var(--safety);
  width: 46px;
}
.brand strong { display: block; line-height: 1.1; }
.brand small, .site-header nav a, .eyebrow, .service-grid p, .sector-copy p, .sector-panel p, .quality-grid p, .process-list p, .contact-copy p, .contact-list span, .site-footer span { color: var(--muted); }
.site-header nav { gap: 20px; }
.site-header nav a, .header-action { font-size: 14px; font-weight: 800; }

.header-action, .primary-action, .secondary-action {
  border-radius: 6px;
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  min-height: 42px;
  padding: 11px 16px;
}
.header-action, .primary-action { background: var(--steel); border: 0; color: var(--white); }
.secondary-action { background: var(--safety); color: var(--ink); }

.hero {
  min-height: 88vh;
  overflow: hidden;
  position: relative;
}
.hero img {
  height: 100%;
  inset: 0;
  object-fit: cover;
  position: absolute;
  width: 100%;
}
.hero-overlay {
  background: linear-gradient(90deg, rgba(12, 22, 34, 0.92), rgba(31, 61, 90, 0.75) 48%, rgba(12, 22, 34, 0.22));
  inset: 0;
  position: absolute;
}
.hero-content {
  color: var(--white);
  max-width: 780px;
  padding: 168px 34px 120px;
  position: relative;
  z-index: 1;
}
.eyebrow { font-size: 12px; font-weight: 900; letter-spacing: 0; text-transform: uppercase; }
.hero .eyebrow { color: rgba(255, 255, 255, 0.78); }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(44px, 7vw, 84px); line-height: 0.96; margin-top: 12px; }
.hero-content p:not(.eyebrow) { color: rgba(255, 255, 255, 0.84); font-size: 20px; line-height: 1.55; margin-top: 24px; max-width: 670px; }
.hero-actions { flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.scroll-cue {
  background: var(--white);
  border-radius: 6px 6px 0 0;
  bottom: 0;
  color: var(--steel);
  font-size: 13px;
  font-weight: 900;
  left: 34px;
  padding: 12px 18px;
  position: absolute;
  z-index: 2;
}

.signal-band {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.signal-band div { border-right: 1px solid var(--line); display: grid; gap: 5px; padding: 22px 34px; }
.signal-band strong { color: var(--steel); font-size: 28px; }
.signal-band span { color: var(--muted); font-size: 13px; font-weight: 800; }

.section { margin: 0 auto; max-width: 1240px; padding: 78px 34px; }
.section-heading { display: grid; gap: 12px; margin-bottom: 26px; max-width: 830px; }
.section-heading.compact { max-width: 720px; }
h2 { color: var(--steel); font-size: clamp(30px, 4vw, 48px); line-height: 1.08; }
.admin-section h1 { color: var(--steel); font-size: clamp(34px, 5vw, 56px); line-height: 1.04; }
.section-heading p:not(.eyebrow), .contact-copy p { color: var(--muted); font-size: 17px; line-height: 1.55; }

.service-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.service-grid article, .sector-board, .quality-grid article, .process-list li, .contact-form, .contact-copy {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 45px rgba(22, 32, 51, 0.08);
}
.service-grid article {
  border-top: 5px solid var(--safety);
  display: grid;
  gap: 12px;
  min-height: 210px;
  padding: 22px;
}
.service-grid span { color: var(--safety-dark); font-weight: 900; }
.service-grid h3, .sector-panel h3, .quality-grid strong { color: var(--steel); font-size: 22px; }
.service-grid p, .sector-panel p, .quality-grid p, .process-list p { line-height: 1.5; }

.sectors-section, .contact-section {
  align-items: start;
  display: grid;
  gap: 30px;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}
.sector-copy, .contact-copy { display: grid; gap: 14px; }
.sector-board { display: grid; gap: 8px; grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 14px; }
.sector-tab {
  background: var(--concrete);
  border: 0;
  border-radius: 6px;
  color: var(--steel);
  cursor: pointer;
  font-weight: 900;
  min-height: 46px;
  padding: 10px;
}
.sector-tab.active { background: var(--steel); color: var(--white); }
.sector-panel { display: none; grid-column: 1 / -1; padding: 22px; }
.sector-panel.active { display: grid; gap: 10px; }

.quality-grid { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.quality-grid article { box-shadow: none; display: grid; gap: 10px; padding: 20px; }
.quality-grid article:nth-child(2) { border-top: 4px solid var(--safety); }
.quality-grid article:nth-child(3) { border-top: 4px solid var(--green); }
.quality-grid article:nth-child(4) { border-top: 4px solid var(--steel-2); }

.process-list {
  counter-reset: step;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}
.process-list li { display: grid; gap: 9px; padding: 20px; position: relative; }
.process-list li::before {
  color: var(--safety-dark);
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  font-weight: 900;
}
.process-list span { color: var(--steel); font-size: 20px; font-weight: 900; }

.contact-copy { padding: 24px; }
.contact-list { display: grid; gap: 10px; }
.contact-list a, .contact-list span { background: var(--concrete); border-radius: 6px; display: block; font-weight: 800; line-height: 1.45; padding: 12px; }
.contact-list a { color: var(--steel); }
.contact-form { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 24px; }
label { color: #44546a; display: grid; font-size: 13px; font-weight: 800; gap: 7px; }
input, select, textarea { background: #fbfdff; border: 1px solid #cbd6e5; border-radius: 6px; color: var(--ink); min-height: 42px; outline: none; padding: 10px 12px; width: 100%; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--steel-2); box-shadow: 0 0 0 3px rgba(47, 95, 133, 0.16); }
.wide, .form-status { grid-column: 1 / -1; }
.contact-form button { cursor: pointer; width: fit-content; }
.form-status { color: var(--green); font-weight: 900; min-height: 20px; }
.form-status.error { color: #b33a3a; }
button:disabled { cursor: not-allowed; opacity: 0.72; }

.admin-main { padding-top: 86px; }
.admin-section { max-width: 1380px; }
.admin-toolbar {
  align-items: end;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 45px rgba(22, 32, 51, 0.08);
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(280px, 420px) auto minmax(180px, 1fr);
  margin-bottom: 18px;
  padding: 18px;
}
.admin-table-wrap {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 45px rgba(22, 32, 51, 0.08);
  overflow-x: auto;
}
.admin-table {
  border-collapse: collapse;
  min-width: 1080px;
  width: 100%;
}
.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
}
.admin-table th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}
.admin-table td {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
}

.site-footer { background: var(--steel); color: var(--white); gap: 14px; justify-content: space-between; padding: 24px 34px; }
.site-footer span { color: rgba(255, 255, 255, 0.72); }

@media (max-width: 1040px) {
  .site-header, .signal-band, .sectors-section, .contact-section { grid-template-columns: 1fr; }
  .site-header { position: static; }
  .site-header nav { flex-wrap: wrap; }
  .hero-content { padding-top: 82px; }
  .service-grid, .quality-grid, .process-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .site-header, .section, .hero-content, .signal-band div, .site-footer { padding-left: 18px; padding-right: 18px; }
  .header-action { width: 100%; }
  .service-grid, .quality-grid, .process-list, .contact-form, .sector-board { grid-template-columns: 1fr; }
  .admin-main { padding-top: 0; }
  .admin-toolbar { grid-template-columns: 1fr; }
  .sector-panel { grid-column: auto; }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .scroll-cue { left: 18px; }
}