/* ==========================================================================
   Vortex Core - research site stylesheet
   A FifeCIC research project. Palette taken from the FifeCIC brochure theme.
   Single shared stylesheet: no inline duplication, no external font calls.
   ========================================================================== */

:root {
  --navy: #1C2E4A;
  --navy-2: #263d5e;
  --navy-3: #16243a;
  --blue: #44B8E0;
  --blue-dark: #2a9bc4;
  --green: #8DC63F;
  --green-dark: #74a832;
  --tan: #C4A882;
  --tan-light: #ddd0be;
  --bg: #F8F9FA;
  --white: #ffffff;
  --text: #1a1a2e;
  --text-mid: #4a4a5a;
  --text-light: #6c6c7e;
  --border: #e2e6ea;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(28, 46, 74, .08), 0 10px 28px rgba(28, 46, 74, .07);
  --wrap: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--blue-dark); }
a:hover { color: var(--navy); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px;
  background: var(--navy); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 0; top: 0; }

/* ---------------------------------------------------------------- header -- */

.site-header {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 3px solid var(--blue);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand img { height: 34px; width: auto; display: block; }
.brand-text { line-height: 1.2; }
.brand-text strong { display: block; font-size: 1.05rem; letter-spacing: .2px; }
.brand-text span { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--tan-light); }

.site-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: #dfe7f1;
  text-decoration: none;
  font-size: .92rem;
  padding: 9px 13px;
  border-radius: 6px;
}
.site-nav a:hover { background: var(--navy-2); color: #fff; }
.site-nav a[aria-current="page"] { background: var(--blue); color: var(--navy); font-weight: 600; }

/* ------------------------------------------------------------------ hero -- */

.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-3) 60%, #0f1b2c 100%);
  color: #fff;
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -140px; top: -140px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(68, 184, 224, .30), transparent 68%);
  pointer-events: none;
}

.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-block;
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--navy);
  background: var(--green);
  padding: 5px 11px;
  border-radius: 100px;
  font-weight: 700;
  margin: 0 0 18px;
}

.hero h1 { font-size: clamp(2.1rem, 5vw, 3.1rem); margin: 0 0 6px; letter-spacing: -.5px; }
.hero .tagline { color: var(--tan); font-size: 1.18rem; margin: 0 0 20px; font-style: italic; }
.hero .lead { font-size: 1.1rem; color: #dbe4ef; max-width: 62ch; margin: 0 0 28px; }

.hero-inner { display: grid; grid-template-columns: 1.25fr 1fr; gap: 44px; align-items: center; }
@media (max-width: 860px) { .hero-inner { grid-template-columns: 1fr; } }

.hero-panel {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  padding: 22px 24px;
  backdrop-filter: blur(3px);
}
.hero-panel h2 { font-size: .78rem; text-transform: uppercase; letter-spacing: .13em; color: var(--blue); margin: 0 0 12px; }
.hero-panel ul { margin: 0; padding-left: 18px; color: #dbe4ef; font-size: .95rem; }
.hero-panel li { margin-bottom: 7px; }

/* ------------------------------------------------------------ page head -- */

/* Short banner used on interior pages, so they do not reuse the full hero. */
.page-head {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-3) 100%);
  color: #fff;
  padding: 46px 0 40px;
}
.page-head h1 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); margin: 0 0 12px; letter-spacing: -.4px; }
.page-head .lead { color: #dbe4ef; max-width: 66ch; margin: 0; font-size: 1.05rem; }
.page-head .eyebrow { margin-bottom: 14px; }

/* ---------------------------------------------------------- support band -- */

/* FifeCIC attribution. The logo carries its own cream background, so a light
   band is used here rather than placing it on the navy header. */
.support-band { background: #f3efe4; border-bottom: 1px solid #e4ddcb; padding: 20px 0; }
.support-band .wrap { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.support-band__logo { height: 52px; width: auto; flex: 0 0 auto; }
.support-band__text { font-size: .94rem; color: var(--text-mid); }
.support-band__text strong { display: block; color: var(--navy); margin-bottom: 3px; }
.support-band__text a { font-weight: 600; }

/* ------------------------------------------------------------- callouts -- */

.callout {
  border-radius: var(--radius);
  padding: 22px 26px;
  margin: 0 0 32px;
  border-left: 5px solid;
  background: var(--white);
  box-shadow: var(--shadow);
}
.callout h2 { margin: 0 0 8px; font-size: 1.05rem; letter-spacing: .01em; }
.callout p { margin: 0; color: var(--text-mid); }
.callout p + p { margin-top: 10px; }

.callout-status { border-left-color: var(--blue); }
.callout-status h2 { color: var(--navy); }
.callout-warn { border-left-color: var(--tan); }
.callout-note { border-left-color: var(--green); }

/* --------------------------------------------------------------- layout -- */

main { padding: 56px 0 72px; }

section { margin-bottom: 52px; }
section:last-child { margin-bottom: 0; }

h2.section-title {
  font-size: 1.55rem;
  margin: 0 0 8px;
  color: var(--navy);
  letter-spacing: -.2px;
}

.section-sub { color: var(--text-light); margin: 0 0 26px; max-width: 68ch; }

h3 { color: var(--navy); margin: 0 0 8px; font-size: 1.1rem; }

p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }

.prose { max-width: 72ch; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 8px; }

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

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(276px, 1fr)); gap: 20px; }

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card .card-icon { font-size: 1.7rem; line-height: 1; display: block; margin-bottom: 12px; }
.card h3 { margin-top: 0; }
.card p { color: var(--text-mid); font-size: .95rem; margin-bottom: 0; }
.card-accent { border-top: 4px solid var(--blue); }
.card-accent-green { border-top: 4px solid var(--green); }
.card-accent-tan { border-top: 4px solid var(--tan); }

/* --------------------------------------------------------------- tables -- */

.table-scroll { overflow-x: auto; margin-bottom: 8px; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: .95rem;
}
caption { caption-side: bottom; text-align: left; font-size: .82rem; color: var(--text-light); padding-top: 9px; }
th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
thead th { background: var(--navy); color: #fff; font-size: .78rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:nth-child(even) { background: #fbfcfd; }

.tag { display: inline-block; font-size: .76rem; font-weight: 700; padding: 3px 9px; border-radius: 100px; white-space: nowrap; }
.tag-yes { background: #eaf5dc; color: #44661a; }
.tag-no { background: #f5e9e9; color: #8a2f2f; }
.tag-partial { background: #fdf3e0; color: #8a6520; }

/* ------------------------------------------------------------- diagrams -- */

.figure {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.figure figcaption { font-size: .85rem; color: var(--text-light); margin-top: 12px; }

/* Diagrams are external SVG. They scale to any device, print cleanly, stay
   editable, and weigh a fraction of a rendered raster. Each carries its own
   internal styles, including its own reduced-motion handling. */
.figure img { display: block; width: 100%; height: auto; }

.stack-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: .92rem;
}
.stack-diagram .node {
  background: var(--navy);
  color: #fff;
  padding: 13px 18px;
  border-radius: 8px;
  text-align: center;
}
.stack-diagram .node strong { display: block; }
.stack-diagram .node span { font-size: .84rem; color: var(--tan-light); }
.stack-diagram .arrow { text-align: center; color: var(--text-light); padding: 5px 0; font-size: 1rem; }
.stack-diagram .node-alt { background: var(--blue-dark); }
.stack-diagram .node-green { background: var(--green-dark); }

.formula {
  background: var(--navy-3);
  color: #e8eef6;
  padding: 16px 20px;
  border-radius: 8px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: .9rem;
  overflow-x: auto;
  margin-bottom: 12px;
}

/* ------------------------------------------------------------------ cta -- */

.cta {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.cta h2 { margin: 0 0 6px; font-size: 1.3rem; }
.cta p { margin: 0; color: #c9d6e5; max-width: 52ch; font-size: .96rem; }

.btn {
  display: inline-block;
  background: var(--green);
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: 8px;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  font-size: .97rem;
}
.btn:hover { background: var(--green-dark); color: var(--navy); }
.btn-secondary { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.45); }
.btn-secondary:hover { background: rgba(255,255,255,.12); color: #fff; }

.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ----------------------------------------------------------------- misc -- */

.roadmap-phase {
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 5px solid var(--tan);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 14px;
}
.roadmap-phase h3 { margin: 0 0 4px; }
.roadmap-phase .phase-meta { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-light); margin-bottom: 10px; }
.roadmap-phase p { margin: 0; color: var(--text-mid); font-size: .95rem; }

.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 15px 18px;
  margin-bottom: 10px;
}
.plain-list li strong { display: block; color: var(--navy); }
.plain-list li span { color: var(--text-mid); font-size: .94rem; }

footer {
  background: var(--navy);
  color: #b9c6d8;
  padding: 40px 0 30px;
  font-size: .9rem;
  border-top: 3px solid var(--blue);
}
footer a { color: var(--blue); text-decoration: none; }
footer a:hover { color: #fff; text-decoration: underline; }
.footer-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; margin-bottom: 26px; }
.footer-grid h4 { color: #fff; font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; margin: 0 0 12px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 7px; }
.footer-note { border-top: 1px solid rgba(255,255,255,.14); padding-top: 20px; font-size: .83rem; color: #94a5bb; }
.footer-note p { margin: 0 0 8px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { height: 30px; width: auto; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding: 44px 0 40px; }
  main { padding: 40px 0 56px; }
  .cta { padding: 28px 24px; }
  .site-header .wrap { min-height: 60px; }
}

@media print {
  .site-header, footer, .cta { display: none; }
  body { background: #fff; }
}