/* ============================================================
   DigiLux Consulting — brand stylesheet
   Built on Bootstrap 5; this layer adds typography, palette,
   spacing, and component refinements that move the site off
   the default template aesthetic.
   ============================================================ */

:root {
  /* Palette */
  --dl-navy-900: #0b1726;
  --dl-navy-800: #122036;
  --dl-navy-700: #1a2c47;
  --dl-navy-600: #243a5a;
  --dl-ink: #0f172a;
  --dl-slate-700: #334155;
  --dl-slate-500: #64748b;
  --dl-slate-300: #cbd5e1;
  --dl-slate-100: #f1f5f9;
  --dl-paper: #fafaf7;
  --dl-line: #e4e7eb;
  --dl-amber: #ef8a17;
  --dl-amber-dark: #c46d0a;
  --dl-amber-soft: #fff1de;
  --dl-success: #1b7a4d;

  /* Type */
  --dl-font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  --dl-font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --dl-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- Base typography ---------- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--dl-font-sans);
  color: var(--dl-ink);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
.serif { font-family: var(--dl-font-serif); font-weight: 500; letter-spacing: -0.01em; }
.mono  { font-family: var(--dl-font-mono); font-size: 0.875em; }

h1, h2, h3, h4 { letter-spacing: -0.02em; font-weight: 600; }
h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.25rem); line-height: 1.2; }
h3 { font-size: 1.35rem; line-height: 1.3; }

p { color: var(--dl-slate-700); }
.lead { color: var(--dl-slate-700); font-size: 1.125rem; }

a { color: var(--dl-navy-700); text-underline-offset: 3px; }
a:hover { color: var(--dl-amber-dark); }

.eyebrow {
  display: inline-block;
  font-family: var(--dl-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dl-amber-dark);
  margin-bottom: 0.75rem;
}

/* ---------- Layout helpers ---------- */
.section { padding: 5.5rem 0; }
.section-tight { padding: 3.5rem 0; }
.section-dark { background: var(--dl-navy-900); color: #ffffff; }
.section-dark p, .section-dark li { color: #c7d0db; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #ffffff; }
.section-paper { background: var(--dl-paper); }
.section-line  { border-top: 1px solid var(--dl-line); }

.container-narrow { max-width: 760px; margin-inline: auto; }
.measure { max-width: 62ch; }

hr.rule { border: none; border-top: 1px solid var(--dl-line); margin: 2rem 0; }
hr.rule-dark { border: none; border-top: 1px solid #2a3a55; margin: 2rem 0; }

/* ---------- Buttons ---------- */
.btn { --bs-btn-padding-y: 0.7rem; --bs-btn-padding-x: 1.25rem; font-weight: 500; border-radius: 4px; }
.btn-primary {
  background: var(--dl-amber);
  border-color: var(--dl-amber);
  color: #1a1108;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--dl-amber-dark);
  border-color: var(--dl-amber-dark);
  color: #1a1108;
}
.btn-outline-light { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-outline-light:hover { background: #fff; color: var(--dl-navy-900); }
.btn-outline-dark { border-color: var(--dl-navy-800); color: var(--dl-navy-800); }
.btn-outline-dark:hover { background: var(--dl-navy-800); color: #fff; }
.btn-ghost { background: transparent; color: var(--dl-navy-700); padding-left: 0; padding-right: 0; }
.btn-ghost:hover { color: var(--dl-amber-dark); }
.btn-ghost::after { content: " →"; }

/* ---------- Navbar ---------- */
.navbar.dl-nav {
  background: #ffffff;
  border-bottom: 1px solid var(--dl-line);
  padding-block: 0.85rem;
}
.navbar.dl-nav .navbar-brand {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--dl-navy-900);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}
.navbar.dl-nav .navbar-brand .brand-mark {
  width: 26px; height: 26px;
  background: var(--dl-navy-900);
  border-radius: 4px;
  position: relative;
  display: inline-block;
}
.navbar.dl-nav .navbar-brand .brand-mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1.5px solid var(--dl-amber);
  border-radius: 2px;
}
.navbar.dl-nav .nav-link {
  color: var(--dl-slate-700);
  font-weight: 500;
  font-size: 0.95rem;
  padding-inline: 0.85rem !important;
}
.navbar.dl-nav .nav-link:hover,
.navbar.dl-nav .nav-link.active { color: var(--dl-navy-900); }
.navbar.dl-nav .dropdown-menu {
  border: 1px solid var(--dl-line);
  border-radius: 6px;
  padding: 0.5rem;
  box-shadow: 0 12px 32px -16px rgba(11,23,38,0.18);
}
.navbar.dl-nav .dropdown-item { border-radius: 4px; font-size: 0.95rem; padding: 0.45rem 0.7rem; }
.navbar.dl-nav .dropdown-item:hover { background: var(--dl-slate-100); color: var(--dl-navy-900); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--dl-navy-900) 0%, var(--dl-navy-800) 100%);
  color: #fff;
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero h1 { color: #fff; }
.hero p.lead { color: #c7d0db; max-width: 38rem; }
.hero .hero-meta {
  font-family: var(--dl-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dl-amber);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 75% 30%, rgba(0,0,0,0.6), rgba(0,0,0,0));
}
.hero-content { position: relative; z-index: 1; }

/* Page header (smaller hero for interior pages) */
.page-header {
  background: var(--dl-navy-900);
  color: #fff;
  padding: 4rem 0 3rem;
  border-bottom: 4px solid var(--dl-amber);
}
.page-header .eyebrow { color: var(--dl-amber); }
.page-header h1 { color: #fff; }
.page-header p { color: #c7d0db; max-width: 40rem; }

/* ---------- Cards ---------- */
.card-flat {
  border: 1px solid var(--dl-line);
  border-radius: 6px;
  background: #fff;
  padding: 1.75rem;
  height: 100%;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card-flat:hover { border-color: var(--dl-navy-700); }
.card-flat h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.card-flat .icon-badge {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--dl-amber-soft);
  color: var(--dl-amber-dark);
  border-radius: 4px;
  font-family: var(--dl-font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.case-card {
  border: 1px solid var(--dl-line);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.case-card .case-tag {
  font-family: var(--dl-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dl-slate-500);
}
.case-card .case-band {
  height: 6px;
  background: linear-gradient(90deg, var(--dl-navy-700), var(--dl-amber));
}
.case-card .case-body { padding: 1.75rem; flex: 1; }
.case-card h3 { font-size: 1.2rem; }
.case-card .metric {
  font-family: var(--dl-font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dl-navy-900);
}
.case-card .metric-label {
  font-size: 0.8rem;
  color: var(--dl-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Stats row */
.stat {
  border-left: 2px solid var(--dl-amber);
  padding-left: 1.25rem;
}
.stat .stat-figure {
  font-family: var(--dl-font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--dl-navy-900);
  line-height: 1;
}
.stat .stat-label {
  color: var(--dl-slate-500);
  font-size: 0.9rem;
  margin-top: 0.4rem;
}

/* ---------- Diagram (engineered-looking) ---------- */
.diagram {
  border: 1px solid var(--dl-line);
  background:
    linear-gradient(rgba(11,23,38,0.04) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(11,23,38,0.04) 1px, transparent 1px) 0 0 / 24px 24px,
    #fff;
  padding: 1.5rem;
  border-radius: 4px;
  font-family: var(--dl-font-mono);
  font-size: 0.85rem;
  color: var(--dl-slate-700);
  white-space: pre;
  overflow-x: auto;
}

/* ---------- Methodology / process steps ---------- */
.process-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--dl-line);
}
.process-step:last-child { border-bottom: 1px solid var(--dl-line); }
.process-step .step-num {
  font-family: var(--dl-font-mono);
  font-weight: 700;
  color: var(--dl-amber-dark);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding-top: 0.2rem;
}
.process-step h4 { font-size: 1.05rem; margin: 0 0 0.4rem; }
.process-step p { margin: 0; }

/* ---------- Lists ---------- */
.check-list { list-style: none; padding-left: 0; }
.check-list li {
  padding-left: 1.6rem;
  position: relative;
  margin-bottom: 0.6rem;
  color: var(--dl-slate-700);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--dl-amber-dark);
  font-weight: 700;
}

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--dl-line);
  border-radius: 6px;
  padding: 2rem;
}
.form-label { font-weight: 500; color: var(--dl-navy-900); font-size: 0.92rem; }
.form-control, .form-select {
  border-radius: 4px;
  border-color: var(--dl-line);
  padding: 0.65rem 0.85rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--dl-navy-700);
  box-shadow: 0 0 0 3px rgba(36,58,90,0.15);
}
.form-check-input { border-color: var(--dl-slate-500); }
.form-check-input:checked {
  background-color: var(--dl-navy-800);
  border-color: var(--dl-navy-800);
}
.form-text { color: var(--dl-slate-500); }
.required-mark { color: var(--dl-amber-dark); }

.consent-block {
  background: var(--dl-paper);
  border: 1px solid var(--dl-line);
  border-left: 3px solid var(--dl-amber);
  padding: 1.25rem;
  border-radius: 4px;
  margin-top: 1.25rem;
}
.consent-block h5 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--dl-navy-900);
}

/* ---------- Tables ---------- */
.table-clean {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}
.table-clean th, .table-clean td {
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--dl-line);
  vertical-align: top;
  text-align: left;
}
.table-clean th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dl-slate-500);
  font-weight: 600;
}

/* ---------- Footer ---------- */
footer.dl-footer {
  background: var(--dl-navy-900);
  color: #c7d0db;
  padding: 4rem 0 2rem;
  font-size: 0.92rem;
}
footer.dl-footer h6 {
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 1rem;
}
footer.dl-footer a {
  color: #c7d0db;
  text-decoration: none;
  display: block;
  padding-block: 0.2rem;
}
footer.dl-footer a:hover { color: var(--dl-amber); }
footer.dl-footer .footer-bottom {
  border-top: 1px solid #1f2c44;
  margin-top: 3rem;
  padding-top: 1.5rem;
  font-size: 0.82rem;
  color: #8a96a8;
}
footer.dl-footer .brand-line {
  color: #fff;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* ---------- Misc ---------- */
.badge-soft {
  background: var(--dl-slate-100);
  color: var(--dl-navy-800);
  font-weight: 500;
  font-size: 0.78rem;
  padding: 0.3rem 0.55rem;
  border-radius: 3px;
  letter-spacing: 0.02em;
}
.badge-amber {
  background: var(--dl-amber-soft);
  color: var(--dl-amber-dark);
  font-weight: 500;
  font-size: 0.78rem;
  padding: 0.3rem 0.55rem;
  border-radius: 3px;
}

.breadcrumb-bar {
  font-family: var(--dl-font-mono);
  font-size: 0.78rem;
  color: var(--dl-slate-500);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--dl-line);
  letter-spacing: 0.04em;
}
.breadcrumb-bar a { color: var(--dl-slate-500); text-decoration: none; }
.breadcrumb-bar a:hover { color: var(--dl-navy-700); }
.breadcrumb-bar .sep { margin: 0 0.5rem; color: var(--dl-slate-300); }

.callout {
  border: 1px solid var(--dl-line);
  border-left: 3px solid var(--dl-navy-700);
  padding: 1.25rem 1.5rem;
  background: var(--dl-paper);
  border-radius: 4px;
}
.callout .callout-eyebrow {
  font-family: var(--dl-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dl-slate-500);
  margin-bottom: 0.4rem;
}

.kpi-row .kpi {
  border-top: 2px solid var(--dl-amber);
  padding-top: 1rem;
}
.kpi-row .kpi .kpi-figure {
  font-family: var(--dl-font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dl-navy-900);
}
.kpi-row .kpi .kpi-label {
  font-size: 0.85rem;
  color: var(--dl-slate-500);
}

/* Tag pill / filter chips */
.filter-chip {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--dl-line);
  background: #fff;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--dl-slate-700);
  cursor: pointer;
  margin: 0.15rem;
  transition: all 0.15s ease;
}
.filter-chip:hover { border-color: var(--dl-navy-700); color: var(--dl-navy-900); }
.filter-chip.active { background: var(--dl-navy-900); color: #fff; border-color: var(--dl-navy-900); }

/* Insights / article cards */
.article-card {
  border-top: 1px solid var(--dl-line);
  padding: 1.75rem 0;
}
.article-card:last-child { border-bottom: 1px solid var(--dl-line); }
.article-card h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.article-card .meta {
  font-family: var(--dl-font-mono);
  font-size: 0.78rem;
  color: var(--dl-slate-500);
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

/* Team card */
.team-card {
  border-top: 1px solid var(--dl-line);
  padding-top: 1.5rem;
  display: flex;
  gap: 1.25rem;
}
.team-card .portrait {
  flex: 0 0 96px;
  width: 96px;
  height: 96px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--dl-paper);
  border: 1px solid var(--dl-line);
}
.team-card .portrait img,
.team-card .portrait svg { width: 100%; height: 100%; display: block; }
.team-card .team-meta { flex: 1; min-width: 0; }
.team-card .role {
  font-family: var(--dl-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dl-amber-dark);
}
.team-card h4 { font-size: 1.05rem; margin: 0.2rem 0 0.4rem; }
.team-card .bio { color: var(--dl-slate-700); font-size: 0.95rem; }

@media (max-width: 480px) {
  .team-card { flex-direction: column; gap: 0.85rem; }
  .team-card .portrait { width: 80px; height: 80px; flex-basis: 80px; }
}

/* Job card */
.job-card {
  border: 1px solid var(--dl-line);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 0.75rem;
  transition: border-color 0.15s ease;
}
.job-card:hover { border-color: var(--dl-navy-700); }
.job-card .role-title { font-weight: 600; color: var(--dl-navy-900); }
.job-card .role-meta {
  font-family: var(--dl-font-mono);
  font-size: 0.78rem;
  color: var(--dl-slate-500);
  letter-spacing: 0.04em;
}

/* CTA strip */
.cta-strip {
  background: var(--dl-navy-900);
  color: #fff;
  padding: 3.5rem 0;
}
.cta-strip h2 { color: #fff; }
.cta-strip p { color: #c7d0db; }

@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
  .hero { padding: 4rem 0 3.5rem; }
  .stat .stat-figure { font-size: 2rem; }
}