/* Concourse SOP Hub - shared styles */

:root {
  --navy: #1b3a5c;
  --navy-deep: #010f29;
  --blue: #2563a8;
  --blue-light: #eaf2fa;
  --blue-mid: #d3e5f5;
  --ink: #1f2430;
  --ink-soft: #4a5568;
  --paper: #ffffff;
  --gray-bg: #eef1f5;
  --gray-border: #dde3ea;
  --amber: #b8760f;
  --amber-bg: #fdf3e2;
  --green: #2f7d4f;
  --green-bg: #e9f5ee;
  --red: #b3382c;
  --red-bg: #fbeae8;
  --teal: #147a72;
  --teal-bg: #e6f4f2;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

[id] { scroll-margin-top: 76px; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--gray-bg);
  line-height: 1.55;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

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

/* ---------- Top bar ---------- */

.topbar {
  background: var(--navy-deep);
  color: #fff;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 3px solid var(--blue);
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand .logo-img {
  height: 26px;
  display: block;
}

.brand .brand-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9fb4cc;
  border-left: 1px solid rgba(255,255,255,0.25);
  padding-left: 10px;
}

.topbar nav {
  display: flex;
  gap: 20px;
  font-size: 0.92rem;
}

.topbar nav a {
  color: #cfe0f2;
}

.topbar nav a.active,
.topbar nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* ---------- Layout shell ---------- */

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 28px 80px;
}

.page-header {
  margin-bottom: 28px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  font-weight: 600;
  margin: 0 0 8px;
}

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  margin: 0 0 6px;
  color: var(--navy-deep);
}

.subtitle {
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 640px;
}

/* ---------- Dashboard cards ---------- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 28px 0 36px;
}

.stat {
  background: var(--paper);
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  padding: 16px 18px;
}

.stat .num {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--navy);
}

.stat .label {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 2px;
}

.section-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-border);
}

.search-bar {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  background: var(--paper);
  margin-bottom: 22px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.sop-card {
  background: var(--paper);
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  padding: 20px 20px 18px 22px;
  border-left: 6px solid var(--blue);
  display: block;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.sop-card:hover {
  box-shadow: 0 4px 14px rgba(27, 58, 92, 0.1);
  text-decoration: none;
  transform: translateY(-1px);
}

.sop-card.cat-tracking { border-left-color: var(--teal); }
.sop-card.cat-admin { border-left-color: var(--amber); }
.sop-card.cat-team { border-left-color: var(--green); }
.sop-card.cat-bids { border-left-color: var(--blue); }

.sop-card .card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.sop-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  margin: 0 0 6px;
  color: var(--navy-deep);
}

.sop-card p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.76rem;
}

.tag {
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}

.tag.cat-bids { background: var(--blue-light); color: var(--blue); }
.tag.cat-tracking { background: var(--teal-bg); color: var(--teal); }
.tag.cat-admin { background: var(--amber-bg); color: var(--amber); }
.tag.cat-team { background: var(--green-bg); color: var(--green); }
.tag.version { background: var(--gray-bg); color: var(--ink-soft); }

.badge-new {
  background: var(--red);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 3px;
  text-transform: uppercase;
}

/* ---------- SOP document pages ---------- */

.doc-layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 40px;
}

.doc-toc {
  position: sticky;
  top: 84px;
  align-self: start;
  font-size: 0.86rem;
}

.doc-toc .toc-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.doc-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--gray-border);
}

.doc-toc li { margin: 0; }

.doc-toc a {
  display: block;
  padding: 6px 0 6px 14px;
  color: var(--ink-soft);
  border-left: 2px solid transparent;
  margin-left: -2px;
}

.doc-toc a:hover { color: var(--blue); text-decoration: none; }

.doc-body h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--navy);
  border-bottom: 2px solid var(--blue-mid);
  padding-bottom: 8px;
  margin: 38px 0 16px;
  text-decoration: underline;
  text-decoration-color: var(--blue);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.doc-body h2:first-of-type { margin-top: 0; }

.doc-body h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--navy-deep);
  margin: 24px 0 10px;
}

.doc-body p { margin: 0 0 14px; }

.doc-body ul, .doc-body ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

.doc-body li { margin-bottom: 6px; }

.doc-meta-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.callout {
  border-left: 4px solid var(--blue);
  background: var(--blue-light);
  padding: 12px 16px;
  border-radius: 4px;
  margin: 18px 0;
  font-size: 0.92rem;
}

.callout .callout-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
  color: var(--blue);
}

.callout.required { border-left-color: var(--red); background: var(--red-bg); }
.callout.required .callout-title { color: var(--red); }

.callout.note { border-left-color: var(--ink-soft); background: var(--gray-bg); }
.callout.note .callout-title { color: var(--ink-soft); }

.callout.edge { border-left-color: var(--amber); background: var(--amber-bg); }
.callout.edge .callout-title { color: var(--amber); }

.callout.checklist { border-left-color: var(--green); background: var(--green-bg); }
.callout.checklist .callout-title { color: var(--green); }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 0.9rem;
}

thead th {
  background: var(--navy);
  color: #fff;
  text-align: left;
  padding: 10px 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
}

tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--gray-border);
  vertical-align: top;
}

tbody tr:nth-child(even) { background: var(--blue-light); }

.step-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  counter-reset: step;
}

.step-list li {
  counter-increment: step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 14px;
}

.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 26px;
  height: 26px;
  background: var(--navy);
  color: #fff;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
}

.mono-link {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  word-break: break-all;
}

.doc-footer-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-border);
  font-size: 0.9rem;
}

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

.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .doc-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; margin-bottom: 24px; }
  .card-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .topbar nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sop-card { transition: none; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 52px 0 40px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--gray-border);
  background-image:
    linear-gradient(var(--gray-bg) 0%, var(--gray-bg) 100%),
    repeating-linear-gradient(0deg, rgba(27,58,92,0.05) 0, rgba(27,58,92,0.05) 1px, transparent 1px, transparent 28px),
    repeating-linear-gradient(90deg, rgba(27,58,92,0.05) 0, rgba(27,58,92,0.05) 1px, transparent 1px, transparent 28px);
  background-attachment: local;
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  font-weight: 600;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-kicker .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-bg);
}

.hero h1 {
  font-size: 2.6rem;
  letter-spacing: -0.01em;
  max-width: 720px;
}

.hero .subtitle {
  font-size: 1.02rem;
  max-width: 620px;
}

.ledger-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 32px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  background: var(--paper);
  overflow: hidden;
}

.ledger-cell {
  padding: 14px 18px;
  border-right: 1px solid var(--gray-border);
}

.ledger-cell:last-child { border-right: none; }

.ledger-cell .num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.ledger-cell .label {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 4px;
}

@media (max-width: 700px) {
  .ledger-strip { grid-template-columns: repeat(2, 1fr); }
  .ledger-cell:nth-child(2) { border-right: none; }
  .ledger-cell { border-bottom: 1px solid var(--gray-border); }
  .hero h1 { font-size: 2rem; }
}

/* ---------- Tab index badge on section headers ---------- */

.tab-index {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px 4px 4px;
  border-radius: 4px;
  margin-bottom: 10px;
  color: var(--navy-deep);
}

.tab-index .tab-num {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}

.tab-index.cat-bids .tab-num { background: var(--blue); }
.tab-index.cat-team .tab-num { background: var(--green); }
.tab-index.cat-admin .tab-num { background: var(--amber); }

/* ---------- Perforated section divider ---------- */

.perforation {
  position: relative;
  height: 1px;
  margin: 0 0 44px;
  background-image: repeating-linear-gradient(to right, var(--gray-border) 0, var(--gray-border) 6px, transparent 6px, transparent 13px);
}

.perforation::before,
.perforation::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gray-bg);
  border: 1px solid var(--gray-border);
}

.perforation::before { left: -6px; }
.perforation::after { right: -6px; }

section.sop-section:last-of-type .perforation { display: none; }

/* ---------- Scroll-spy nav indicator ---------- */

.topbar nav a {
  position: relative;
  padding-bottom: 4px;
}

.topbar nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -3px;
  height: 2px;
  background: var(--blue);
  transition: right 0.2s ease;
}

.topbar nav a.active::after,
.topbar nav a:hover::after {
  right: 0;
}