/* SAIGE homepage mockups: shared base for all options.
   Colours, type and fonts come from the brand kit (../SAIGE Brand/tokens.css), linked before this file.
   The site is light only (README: dark mode not decided), so every colour here is set explicitly. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; color-scheme: light; }
body {
  margin: 0;
  background: var(--saige-cream);
  color: var(--saige-ink);
  font-family: var(--saige-font-sans);
  font-size: var(--saige-text-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--saige-font-serif); font-weight: 400; margin: 0; text-wrap: balance; }
p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; }

@media (max-width: 600px) { :root { --saige-gutter: 16px; } }

.wrap { width: 100%; max-width: calc(var(--saige-container) + 2 * var(--saige-gutter)); margin-inline: auto; padding-inline: var(--saige-gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- Type ---------- */
.eyebrow { font: 600 var(--saige-text-label)/1.3 var(--saige-font-sans); letter-spacing: .12em; text-transform: uppercase; color: var(--saige-ink-2); }
.display { font-family: var(--saige-font-serif); font-size: var(--saige-text-display); line-height: 1.02; letter-spacing: -0.02em; }
.h2 { font-family: var(--saige-font-serif); font-size: var(--saige-text-h2); line-height: 1.1; letter-spacing: -0.015em; }
.h3 { font-family: var(--saige-font-serif); font-size: var(--saige-text-h3); line-height: 1.15; letter-spacing: -0.01em; }
.lede { font-size: var(--saige-text-lede); line-height: 1.5; color: var(--saige-ink-2); max-width: 58ch; }
.small { font-size: var(--saige-text-small); line-height: 1.45; }
.display em, .h2 em, .h3 em { font-style: italic; color: var(--saige-moss); }
.num { font-variant-numeric: tabular-nums lining-nums; }

/* ---------- Links and buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 500 15px/1.2 var(--saige-font-sans);
  padding: 12px 20px; border-radius: var(--saige-radius-control);
  border: 1px solid transparent; text-decoration: none; cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex: none; }
.btn-primary { background: var(--saige-moss); color: var(--saige-cream); }
.btn-primary:hover { background: #26311A; }
.btn-light { background: var(--saige-cream); color: var(--saige-moss); }
.btn-light:hover { background: #FFFFFF; }
.btn-maths { background: var(--saige-maths); color: var(--saige-cream); }
.btn-maths:hover { background: #255CA6; }
.btn-ghost-dark { background: transparent; color: var(--saige-cream); border-color: rgba(248, 246, 236, .45); }
.btn-ghost-dark:hover { border-color: var(--saige-cream); }
.btn-sm { padding: 9px 16px; font-size: 14.5px; }

.link-u {
  display: inline-flex; align-items: center; gap: 6px;
  font: 500 15px/1.3 var(--saige-font-sans); color: var(--saige-ink);
  text-decoration: none; padding-bottom: 2px;
  border-bottom: 1.5px solid var(--saige-butter);
  transition: border-color .15s ease;
}
.link-u:hover { border-bottom-color: var(--saige-moss); }
.link-u svg { width: 15px; height: 15px; flex: none; transition: transform .15s ease; }
.link-u:hover svg { transform: translateX(2px); }
.on-dark .link-u { color: var(--saige-cream); }
.on-dark .link-u:hover { border-bottom-color: var(--saige-cream); }

:focus-visible { outline: 2px solid var(--saige-moss); outline-offset: 3px; border-radius: 2px; }
.on-dark :focus-visible, .saige-tri :focus-visible { outline-color: var(--saige-butter); }

/* ---------- Tags ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font: 600 12px/1 var(--saige-font-sans); letter-spacing: .01em;
  padding: 6px 8px; border-radius: var(--saige-radius-control);
  background: var(--saige-butter); color: var(--saige-ink);
}
.tag--peri { background: var(--saige-periwinkle); }
.tag--sage { background: var(--saige-sage); }
.tag--cream { background: var(--saige-cream); }
.tag--white { background: #FFFFFF; }
.tag--incubator { background: var(--saige-incubator); color: #FFFFFF; }
.tag--maths { background: var(--saige-maths); color: var(--saige-cream); }
.tag--hubs { background: var(--saige-hubs); color: var(--saige-ink); }
.tag--line { background: transparent; box-shadow: inset 0 0 0 1px var(--saige-line); color: var(--saige-ink-2); }

/* Metadata on maths blue (technical programmes only): mono, with a small triangle */
.maths-meta { display: inline-flex; align-items: center; gap: 8px; font: 400 var(--saige-text-mono)/1.4 var(--saige-font-mono); letter-spacing: .03em; text-transform: uppercase; color: var(--saige-maths-on); }
.maths-meta::before { content: ""; flex: none; width: 10px; height: 9px; background: currentColor; clip-path: polygon(50% 0, 100% 100%, 0 100%); }

/* The Maths Workshop's marker is a triangle instead of the programme square */
.sq.c-maths { border-radius: 0; clip-path: polygon(50% 4%, 100% 96%, 0 96%); }

/* A band or card in maths blue with the interactive triangle lattice behind its content */
.tri-band { position: relative; overflow: hidden; isolation: isolate; background: var(--saige-maths); color: var(--saige-cream); }
.tri-band > .tr-field { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; display: block; }
/* a lattice confined to part of a band: position the zone, the canvas fills it */
.tri-band > .tr-zone { position: absolute; z-index: -1; }
.tr-zone > .tr-field { width: 100%; height: 100%; display: block; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: rgba(248, 246, 236, .94); backdrop-filter: saturate(1.2) blur(8px); -webkit-backdrop-filter: saturate(1.2) blur(8px); border-bottom: 1px solid var(--saige-line); }
.header-row { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.brand { display: block; flex: none; }
.brand img { height: 40px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.main-nav a { font: 500 14.5px/1.2 var(--saige-font-sans); color: var(--saige-ink); text-decoration: none; display: inline-flex; align-items: center; gap: 4px; padding-block: 8px; border-bottom: 1.5px solid transparent; }
.main-nav a:hover { border-bottom-color: var(--saige-butter); }
.main-nav svg { width: 12px; height: 12px; opacity: .6; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.lang { font: 500 13.5px/1 var(--saige-font-sans); color: var(--saige-ink-2); text-decoration: none; display: inline-flex; gap: 5px; }
.lang b { color: var(--saige-ink); font-weight: 600; }
.lang span { opacity: .45; }
.header-link { font: 500 14.5px/1.2 var(--saige-font-sans); color: var(--saige-ink); text-decoration: none; border-bottom: 1.5px solid var(--saige-butter); padding-bottom: 2px; }
.menu-btn { display: none; align-items: center; gap: 8px; background: transparent; border: 1px solid var(--saige-line); border-radius: var(--saige-radius-control); padding: 9px 12px; font: 500 14.5px/1 var(--saige-font-sans); color: var(--saige-ink); cursor: pointer; }
.menu-btn svg { width: 18px; height: 18px; }
.mobile-nav { display: none; }
@media (max-width: 1080px) {
  .main-nav, .header-actions .lang, .header-actions .header-link { display: none; }
  .header-actions { margin-left: auto; }
  .menu-btn { display: inline-flex; }
  .mobile-nav { display: block; border-top: 1px solid var(--saige-line); background: var(--saige-cream); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav ul { display: grid; gap: 2px; padding-block: 12px 20px; }
  .mobile-nav a { display: flex; justify-content: space-between; font: 500 17px/1.3 var(--saige-font-sans); text-decoration: none; padding: 12px 0; border-bottom: 1px solid var(--saige-line); }
  .mobile-nav .mobile-nav-foot { display: flex; gap: 16px; align-items: center; padding-top: 16px; }
}
@media (max-width: 600px) {
  .header-row { min-height: 64px; gap: 12px; }
  .brand img { height: 32px; }
  .header-actions .btn { display: none; }
}

/* ---------- Header: Programmes menu (shared header, 11 Oct; markup in header.html) ---------- */
.main-nav a[aria-current="page"] { border-bottom-color: var(--saige-moss); }
.nav-drop { position: relative; }
.nav-drop .drop { position: absolute; top: calc(100% + 6px); left: -18px; width: 340px; padding: 8px; background: #FFFFFF; border: 1px solid var(--saige-line); border-radius: var(--saige-radius-card); box-shadow: 0 16px 40px -20px rgba(30, 36, 20, .4);
  opacity: 0; visibility: hidden; transform: translateY(4px); transition: opacity .15s ease, transform .15s ease, visibility 0s linear .15s; }
.nav-drop .drop::before { content: ""; position: absolute; inset: -14px 0 auto; height: 14px; }
.nav-drop:hover .drop, .nav-drop:focus-within .drop { opacity: 1; visibility: visible; transform: none; transition: opacity .15s ease, transform .15s ease, visibility 0s; }
.main-nav .drop a { display: grid; grid-template-columns: 12px minmax(0, 1fr); gap: 2px 12px; align-items: center; padding: 10px 12px; border: 0; border-radius: 8px; }
.main-nav .drop a:hover, .main-nav .drop a[aria-current="page"] { background: var(--saige-cream); }
.main-nav .drop b { font-weight: 500; }
.main-nav .drop small { grid-column: 2; font: 400 13px/1.35 var(--saige-font-sans); color: var(--saige-ink-2); }
.main-nav .drop .all { display: flex; margin-top: 4px; border-top: 1px solid var(--saige-line); border-radius: 0 0 8px 8px; padding-top: 12px; color: var(--saige-ink-2); }
.site-header .sq { display: inline-block; flex: none; width: 12px; height: 12px; border-radius: 2px; background: var(--c); }
.site-header .c-fellow { --c: var(--saige-future); }
.site-header .c-maths { --c: var(--saige-maths); }
.site-header .c-hubs { --c: var(--saige-hubs); }
.site-header .c-incubator { --c: var(--saige-incubator); }
.mobile-nav .mobile-sub { display: grid; gap: 0; padding: 0 0 6px 4px; }
.mobile-nav .mobile-sub a { justify-content: flex-start; align-items: center; gap: 12px; font-size: 15.5px; font-weight: 400; padding: 10px 0; border-bottom: 0; }
.mobile-nav a[aria-current="page"] { color: var(--saige-moss); font-weight: 600; }

/* ---------- Mockup ribbon (not part of the design) ---------- */
.mockup-ribbon { background: #2A2F22; color: #E9E7DA; font: 500 12.5px/1.35 var(--saige-font-sans); padding: 7px var(--saige-gutter); text-align: center; letter-spacing: .01em; }
.mockup-ribbon b { color: #FFFFFF; font-weight: 600; }
.mockup-ribbon .ph-key { display: inline-block; outline: 1.5px dashed #AFC0F4; outline-offset: 1px; padding: 0 5px; border-radius: 2px; margin-left: 2px; }

/* ---------- Placeholders (clearly marked mockup content) ---------- */
.ph { position: relative; outline: 1.5px dashed rgba(47, 111, 196, .55); outline-offset: 3px; border-radius: 3px; }
.ph-note { display: inline-block; font: 600 10.5px/1 var(--saige-font-sans); letter-spacing: .08em; text-transform: uppercase; color: #234C86; background: #DCE4FB; padding: 4px 6px; border-radius: 2px; vertical-align: 2px; }
.ph-text { background: #DCE4FB; color: #234C86; border-radius: 2px; padding: 0 4px; font-style: normal; box-decoration-break: clone; -webkit-box-decoration-break: clone; }

/* ---------- Footer ---------- */
.site-footer { background: var(--saige-moss); color: var(--saige-cream); padding-block: 72px 32px; }
.footer-top { display: grid; grid-template-columns: minmax(220px, 1.3fr) repeat(4, minmax(0, 1fr)); gap: 40px; }
.footer-logo img { width: 200px; height: auto; }
.footer-blurb { color: var(--saige-on-moss); font-size: 15px; line-height: 1.55; margin-top: 20px; max-width: 32ch; }
.footer-col h4 { font: 600 12px/1.3 var(--saige-font-sans); letter-spacing: .12em; text-transform: uppercase; color: var(--saige-cream); margin-bottom: 14px; }
.footer-col ul { display: grid; gap: 9px; }
.footer-col a { color: var(--saige-on-moss); text-decoration: none; font-size: 15px; }
.footer-col a:hover { color: var(--saige-cream); text-decoration: underline; text-decoration-color: var(--saige-butter); text-underline-offset: 3px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; align-items: center; margin-top: 56px; padding-top: 22px; border-top: 1px solid rgba(248, 246, 236, .16); color: var(--saige-on-moss); font-size: 14px; }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-bottom a { color: var(--saige-on-moss); text-decoration: none; }
.footer-bottom a:hover { color: var(--saige-cream); }
@media (max-width: 960px) { .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 600px) { .site-footer { padding-block: 56px 28px; } .footer-top { gap: 32px 20px; } }

/* ---------- Forms ---------- */
.field { display: flex; flex-wrap: wrap; gap: 8px; }
.input {
  flex: 1 1 220px; min-width: 0;
  font: 400 16px/1.2 var(--saige-font-sans); color: var(--saige-ink);
  background: #FFFFFF; border: 1px solid #CFCAB2; border-radius: var(--saige-radius-control);
  padding: 12px 14px;
}
.input::placeholder { color: #7B7F6C; }
.input:focus-visible { outline: 2px solid var(--saige-moss); outline-offset: 1px; border-color: var(--saige-moss); }
.form-note { font-size: 13px; line-height: 1.45; color: var(--saige-ink-2); margin-top: 10px; }
.form-done { font-size: 14px; color: var(--saige-moss); margin-top: 10px; font-weight: 500; }
.form-done.is-error { color: #A33A2B; }

/* ---------- Germany map ---------- */
.de-map { width: 100%; height: auto; overflow: visible; }
.de-map .land { fill: #EFE8C4; stroke: var(--saige-ink-2); stroke-width: 1.1; stroke-linejoin: round; }
.de-map .hub circle.halo { fill: rgba(243, 211, 91, .45); }
.de-map .hub circle.pt { fill: var(--saige-hubs); stroke: var(--saige-ink); stroke-width: 1.4; }
.de-map .hub text { font: 500 12.5px var(--saige-font-sans); fill: var(--saige-ink); paint-order: stroke; stroke: #F8F6EC; stroke-width: 3.5px; stroke-linejoin: round; }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}