/* =====================================================================
   Blue Diamond Innovations — Facet design system
   A single stylesheet used by every page. Edit tokens at the top to
   retheme the whole site. No build step; plain CSS custom properties.
   ===================================================================== */

:root {
  /* Palette — cobalt + cyan, diamond-facet language */
  --ink:          #050A1A;
  --ink-2:        #0A1228;
  --ink-3:        #13204A;
  --ink-soft:     #384870;
  --ink-mute:     #6B7A9C;
  --cobalt:       #0A1E4D;
  --cobalt-mid:   #1D4ED8;
  --cobalt-bright:#4F83FF;
  --cyan:         #0EA5E9;
  --cyan-soft:    #A7E3F8;
  --silver:       #D5DEF0;

  --bg:           #F7F9FF;
  --bg-2:         #EEF2FB;
  --line:         #DFE5F3;
  --line-dark:    #1E2A4E;
  --white:        #FFFFFF;

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Layout */
  --container:    1220px;
  --gutter:       32px;
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
}
h1 { font-size: clamp(42px, 5.4vw, 74px); letter-spacing: -0.035em; }
h2 { font-size: clamp(34px, 3.6vw, 52px); }
h3 { font-size: clamp(24px, 2.2vw, 30px); }
h4 { font-size: 20px; font-weight: 600; }
p  { color: var(--ink-soft); font-size: 17px; }

.mono {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cobalt-bright);
}
.mono-line {
  display: flex; gap: 14px; align-items: center; margin-bottom: 18px;
}
.mono-line .line-dash {
  width: 40px; height: 1px; background: var(--cobalt-bright);
}
.gradient-text {
  background: linear-gradient(90deg, var(--cobalt-mid) 0%, var(--cyan) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

/* ---------- Layout primitives ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head p { margin-top: 16px; max-width: 58ch; }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600; font-size: 18px; letter-spacing: -0.015em;
  color: var(--ink);
}
.brand img, .brand svg {
  height: 32px; width: auto;
}
.site-nav {
  display: flex; align-items: center; gap: 32px;
}
.site-nav a {
  font-size: 14px; font-weight: 500; color: var(--ink-soft);
  transition: color .15s;
}
.site-nav a:hover,
.site-nav a.is-active { color: var(--cobalt-mid); }
.site-nav .cta {
  color: var(--white); background: var(--cobalt);
  padding: 10px 18px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--cobalt);
}
.site-nav .cta:hover {
  background: var(--cobalt-mid); border-color: var(--cobalt-mid);
  color: var(--white);
}
.nav-toggle {
  display: none;
  font-size: 22px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; font-weight: 600; font-size: 14px;
  transition: transform .15s, box-shadow .2s, background .2s, border-color .2s, color .2s;
  cursor: pointer; border: 1px solid transparent;
  font-family: var(--font-body);
  position: relative;
  text-align: center;
}
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary { background: var(--cobalt); color: var(--white); border-color: var(--cobalt); }
.btn-primary:hover {
  background: var(--cobalt-mid); border-color: var(--cobalt-mid);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.16), 0 12px 28px -12px rgba(29, 78, 216, 0.45);
}
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink-soft); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-light { background: var(--white); color: var(--cobalt); border-color: var(--white); }
.btn-light:hover { background: var(--cyan-soft); border-color: var(--cyan-soft); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 88px 0 100px;
  background:
    /* ambient cobalt wash around the image — broader, richer */
    radial-gradient(ellipse 1100px 800px at 82% 55%, rgba(79, 131, 255, 0.3) 0%, rgba(79, 131, 255, 0.08) 50%, transparent 78%),
    /* vertical wash: pale at top, deepens through middle, settles blue-gray before the dark metrics strip */
    linear-gradient(180deg, var(--white) 0%, var(--bg) 28%, #DCE6F8 62%, #BFCEEB 100%);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(29, 78, 216, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(29, 78, 216, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 900px 500px at 75% 30%, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 900px 500px at 75% 30%, black 40%, transparent 80%);
  pointer-events: none;
}
/* diagonal light-beam sweeping across the hero — ties the image's light ray
   into the surrounding page so the composition reads as one atmosphere */
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 35%, rgba(167, 227, 248, 0.12) 50%, transparent 65%);
  pointer-events: none;
}
.hero .container {
  position: relative; z-index: 1;
}
.hero.with-visual .container {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
}
.hero h1 { margin-bottom: 22px; }
.hero .lead {
  font-size: 18px; color: var(--ink-soft); max-width: 58ch;
  margin-bottom: 32px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual {
  position: relative; aspect-ratio: 1 / 1;
  max-width: 500px; margin-left: auto;
}
/* Large soft cobalt aura behind the image — bleeds into the surrounding atmosphere
   so the image reads as emerging from the page instead of sitting on top of it. */
.hero-visual::before {
  content: ''; position: absolute; inset: -70px;
  background: radial-gradient(ellipse at center, rgba(79, 131, 255, 0.45) 0%, rgba(29, 78, 216, 0.18) 45%, transparent 72%);
  filter: blur(28px);
  pointer-events: none;
  z-index: 0;
}
.hero-visual img {
  position: relative; z-index: 1;
  display: block; width: 100%; height: 100%; object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 30px 80px -20px rgba(10, 30, 77, 0.55),
              0 0 0 1px rgba(10, 30, 77, 0.25);
}

/* ---------- Metrics strip (dark) ---------- */
.metrics {
  background: var(--ink);
  color: var(--white);
  padding: 28px 0;
}
.metrics .container {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  align-items: center;
}
.metric { border-left: 1px solid var(--line-dark); padding-left: 20px; }
.metric:first-child { border-left: none; }
.metric .num {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 600;
  background: linear-gradient(90deg, var(--cyan-soft), var(--cobalt-bright));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  letter-spacing: -0.02em;
}
.metric .lbl {
  font-size: 12px; color: var(--ink-mute);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-top: 4px;
}

/* ---------- Cards ---------- */
.cards-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 40px 36px 36px;
  position: relative;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 48px; height: 48px;
  background: var(--cobalt);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.card.cyan::before { background: var(--cyan); }
.card:hover {
  border-color: var(--cobalt-mid);
  box-shadow: 0 20px 40px -20px rgba(10, 30, 77, 0.25);
  transform: translateY(-3px);
}
.card-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cobalt-mid);
  margin-bottom: 16px;
}
.card.cyan .card-tag { color: var(--cyan); }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 16px; margin-bottom: 28px; }
.arrow-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--cobalt-mid); font-size: 14px;
}
.arrow-link .arrow { transition: transform .2s; }
.arrow-link:hover .arrow { transform: translateX(3px); }

/* ---------- Dark services panel ---------- */
.dark-panel {
  background: var(--ink);
  color: var(--white);
  padding: 110px 0;
  position: relative; overflow: hidden;
}
.dark-panel::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 100% 0%, rgba(14, 165, 233, 0.15), transparent 60%),
    radial-gradient(ellipse 800px 500px at 0% 100%, rgba(29, 78, 216, 0.18), transparent 60%);
}
.dark-panel .container { position: relative; z-index: 1; }
.dark-panel h2 { color: var(--white); }
.dark-panel .section-head p { color: var(--ink-mute); }
.dark-panel .mono { color: var(--cyan-soft); }
.dark-panel .mono-line .line-dash { background: var(--cyan-soft); }

.dark-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-dark);
  padding: 32px 28px;
  transition: border-color .2s, background .2s;
  position: relative;
}
.dark-card:hover {
  border-color: var(--cobalt-bright);
  background: rgba(79, 131, 255, 0.08);
}
.dark-card .num {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--cobalt-bright);
  margin-bottom: 20px; letter-spacing: 0.08em;
}
.dark-card h4 {
  font-size: 20px; color: var(--white); margin-bottom: 12px;
  font-weight: 600;
}
.dark-card p { color: var(--ink-mute); font-size: 15px; }
.dark-card .corner-dot {
  position: absolute; top: 28px; right: 24px;
  width: 6px; height: 6px; background: var(--cobalt-bright);
}
.dark-card-img {
  margin: -32px -28px 24px; /* pull image flush to card edges, above the padding */
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
  background: var(--ink-dark);
}
.dark-card-img img {
  display: block; width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.dark-card:hover .dark-card-img img { transform: scale(1.03); }

/* ---------- Track list (used on education page) ---------- */
.track {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.track:first-child { border-top: none; padding-top: 0; }
.track-grid {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 48px;
  align-items: start;
}
.track-lead { position: sticky; top: 96px; }
.track-lead .mono { margin-bottom: 12px; }
.track-lead h3 { margin-bottom: 14px; }
.track-lead p { color: var(--ink-soft); font-size: 16px; }
.track-items {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px;
  list-style: none;
}
.track-items li {
  font-size: 15px; color: var(--ink);
  padding-left: 26px; position: relative;
  padding-bottom: 12px; border-bottom: 1px dashed var(--line);
}
.track-items li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 12px; height: 12px;
  background: var(--cobalt-mid);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

/* ---------- Approach / process ---------- */
.steps {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 16px; margin-top: 48px;
}
.step {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  position: relative;
}
.step .n {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--cobalt-bright);
  letter-spacing: 0.08em; margin-bottom: 12px;
}
.step h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Team grid ---------- */
.team-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
}
.team-card {
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
}
.team-photo {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--cobalt) 0%, var(--cobalt-mid) 55%, var(--cyan) 100%);
  position: relative;
  overflow: hidden;
}
.team-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.team-photo .initials {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 72px; font-weight: 500;
  color: var(--white);
  letter-spacing: -0.04em;
  background: radial-gradient(circle at 70% 30%, rgba(255,255,255,0.15), transparent 60%);
}
.team-card .body { padding: 28px 28px 30px; }
.team-card .role {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cobalt-mid); margin-bottom: 10px;
}
.team-card h3 { margin-bottom: 10px; font-size: 24px; }
.team-card p { font-size: 15px; color: var(--ink-soft); margin-bottom: 16px; }
.team-card .contact { font-size: 14px; color: var(--ink-soft); }
.team-card .contact a { color: var(--cobalt-mid); font-weight: 500; }

/* ---------- Contact page form ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 48px;
  align-items: start;
}
.contact-info .item {
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.contact-info .item:first-child { padding-top: 0; }
.contact-info .label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cobalt-mid); margin-bottom: 6px;
}
.contact-info .value { font-size: 16px; color: var(--ink); }
.contact-info .value a { color: var(--ink); }
.contact-info .value a:hover { color: var(--cobalt-mid); }

.form {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 36px 36px 32px;
  display: grid; gap: 18px;
}
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label {
  display: grid; gap: 8px;
  font-size: 13px; font-weight: 500;
  color: var(--ink); letter-spacing: 0.01em;
}
.form input[type="text"],
.form input[type="email"],
.form textarea {
  width: 100%;
  padding: 12px 14px;
  font: 400 15px var(--font-body);
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  transition: border-color .15s, background .15s;
}
.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--cobalt-mid);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
}
.form textarea { min-height: 140px; resize: vertical; font-family: var(--font-body); }
.form label.checkbox {
  display: flex; align-items: center; gap: 10px;
  font-weight: 400; color: var(--ink-soft); font-size: 14px;
}
.form label.checkbox input { margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--cobalt) 0%, var(--ink) 100%);
  color: var(--white);
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute;
  top: -20%; right: -10%;
  width: 60%; height: 140%;
  background: conic-gradient(from 220deg at 50% 50%, transparent 0deg, rgba(14, 165, 233, 0.3) 90deg, transparent 180deg);
  filter: blur(40px);
}
.cta-band .container {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.cta-band h2 {
  color: var(--white);
  font-size: clamp(30px, 3.4vw, 44px); max-width: 22ch;
}

/* ---------- Small quiet callout (for ministry link etc) ---------- */
.quiet-callout {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  padding: 28px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.quiet-callout .mono {
  font-size: 11px; letter-spacing: 0.12em;
  margin-bottom: 6px; color: var(--cyan);
}
.quiet-callout h4 { font-family: var(--font-display); font-size: 20px; margin-bottom: 4px; }
.quiet-callout p { font-size: 15px; max-width: 54ch; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--ink-mute);
  padding: 64px 0 40px;
  border-top: 1px solid var(--line-dark);
}
.site-footer .container {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-dark);
}
.site-footer .brand { color: var(--white); margin-bottom: 14px; }
.site-footer p { color: var(--ink-mute); font-size: 14px; max-width: 36ch; }
.site-footer h5 {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cyan-soft); margin-bottom: 18px;
}
.site-footer ul { list-style: none; display: grid; gap: 10px; }
.site-footer ul a {
  font-size: 14px; color: var(--ink-mute); transition: color .15s;
}
.site-footer ul a:hover { color: var(--white); }
.site-footer .legal {
  padding-top: 24px; font-size: 13px; color: var(--ink-mute);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}

/* ---------- Utility ---------- */
.center { text-align: center; }
.center .section-head { margin-left: auto; margin-right: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero.with-visual .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; max-width: 360px; margin: 0 auto; }
  .track-grid { grid-template-columns: 1fr; gap: 32px; }
  .track-lead { position: static; }
  .track-items { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .site-footer .container { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 72px; }
  .cards-2, .cards-3 { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .metrics .container { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .form { padding: 24px; }
  .form .row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .site-footer .container { grid-template-columns: 1fr; }

  .nav-toggle {
    display: inline-flex; padding: 8px 10px;
    border: 1px solid var(--line); color: var(--ink);
  }
  .site-nav {
    display: none;
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    padding: 16px var(--gutter) 24px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 0; }
  .site-nav .cta { text-align: center; margin-top: 8px; }
}