/* ============================================================
   Students for Global Health — Oxford
   One stylesheet for every page. Edit colours and type here.
   ============================================================ */

:root{
  /* --- colour ---------------------------------------------
     Every combination below meets WCAG AA contrast.
     If you change these, re-check at webaim.org/resources/contrastchecker */
  --ink:#002147;        /* Oxford blue. Body text, buttons.        14.5:1 on paper */
  --ink-2:#123A66;      /* Secondary text.                         10.4:1 on paper */
  --muted:#52687F;      /* Captions, labels.                        5.2:1 on paper */
  --paper:#F2F4F1;      /* Page background */
  --paper-2:#FFFFFF;    /* Cards, footer */
  --line:#D3DAD4;       /* Hairlines */
  --signal:#FF8A3D;     /* Bright amber. ONLY as a background or on dark ink. */
  --signal-ink:#A63D00; /* Amber for TEXT on light backgrounds.      5.8:1 */
  --marker:#C94E00;     /* Amber for small graphics on light.        4.2:1 */
  --focus:#0B57D0;

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Instrument Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}

/* --- accessibility floor ---------------------------------- */
.skip{
  position:absolute;left:12px;top:-70px;z-index:200;
  background:var(--ink);color:var(--paper);padding:12px 20px;border-radius:0 0 8px 8px;
  font-weight:600;text-decoration:none;transition:top .18s;
}
.skip:focus{top:0}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:3px}
.vh{ /* visually hidden, still read aloud */
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.wrap{max-width:1240px;margin:0 auto;padding:0 var(--pad)}
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);margin:0 0 18px;
}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.04;margin:0}
p{margin:0 0 1em}
.lede{font-size:clamp(17px,1.5vw,20px);color:var(--ink-2);max-width:58ch}
.prose{max-width:62ch}
.prose p{color:var(--ink-2)}
.prose h3{font-size:22px;margin:34px 0 12px}

/* --- header / nav ----------------------------------------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(242,244,241,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.head-in{display:flex;align-items:center;gap:26px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;margin-right:auto;padding:6px 0}
.brand-mark{width:26px;height:26px;flex:0 0 26px}
.brand-txt{font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:-.02em;line-height:1.1}
.brand-txt span{display:block;font-family:var(--mono);font-weight:400;font-size:9.5px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-top:3px}

.mainnav ul{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.mainnav a{
  display:inline-block;font-size:14.5px;text-decoration:none;color:var(--ink-2);
  padding:12px 0;border-bottom:2px solid transparent;
}
.mainnav a:hover{border-color:var(--signal-ink);color:var(--ink)}
.mainnav a[aria-current="page"]{color:var(--ink);font-weight:600;border-color:var(--signal-ink)}
/* the nav CTA is a button, not a nav link — .mainnav a would otherwise paint its
   label --ink-2 on the --ink pill, which is 1.39:1 and unreadable */
.mainnav .nav-cta a{color:var(--paper);border:1.5px solid var(--ink);padding:12px 22px}
.mainnav .nav-cta a:hover{color:var(--paper);border-color:var(--ink-2)}

.menu-btn{
  display:none;align-items:center;gap:9px;background:none;border:1.5px solid var(--ink);
  color:var(--ink);font-family:var(--body);font-size:14px;font-weight:600;
  padding:10px 16px;border-radius:999px;cursor:pointer;min-height:44px;
}
.menu-btn .bars{display:block;width:16px;height:10px;position:relative}
.menu-btn .bars::before,.menu-btn .bars::after{
  content:"";position:absolute;left:0;right:0;height:1.8px;background:currentColor;transition:transform .2s}
.menu-btn .bars::before{top:0}
.menu-btn .bars::after{bottom:0}
.menu-btn[aria-expanded="true"] .bars::before{transform:translateY(4px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .bars::after{transform:translateY(-4px) rotate(-45deg)}

@media(max-width:900px){
  .menu-btn{display:inline-flex}
  .mainnav{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--paper-2);border-bottom:1px solid var(--line);
    padding:8px var(--pad) 20px;
  }
  .mainnav.open{display:block}
  .mainnav ul{flex-direction:column;align-items:stretch;gap:0}
  .mainnav li{border-bottom:1px solid var(--line)}
  .mainnav a{display:block;padding:16px 0;font-size:17px;border-bottom:none}
  .mainnav a[aria-current="page"]{color:var(--signal-ink)}
  .mainnav .nav-cta{margin-top:18px;border-bottom:none}
  .mainnav .nav-cta a{display:block;text-align:center;padding:14px 20px}
}

/* --- buttons ---------------------------------------------- */
.btn{
  display:inline-block;font-family:var(--body);font-weight:600;font-size:14.5px;
  padding:12px 22px;border-radius:999px;text-decoration:none;cursor:pointer;
  border:1.5px solid var(--ink);min-height:44px;
  transition:transform .18s,background .18s,color .18s;
}
.btn:hover{transform:translateY(-2px)}
.btn-fill{background:var(--ink);color:var(--paper)}
.btn-fill:hover{background:var(--ink-2)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sig{background:var(--signal);border-color:var(--signal);color:#3A1A00}
.btn-sig:hover{background:#FF7A22;border-color:#FF7A22}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* --- hero ------------------------------------------------- */
.hero{padding:clamp(48px,7vw,92px) 0 clamp(36px,5vw,60px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,72px);align-items:center}
@media(max-width:940px){.hero-grid{grid-template-columns:1fr;gap:36px}}
h1{font-size:clamp(40px,6vw,80px);font-weight:600}
h1 em{font-style:normal;color:var(--signal-ink)}
.hero .lede{margin-top:26px}

/* page header (inner pages) */
.page-head{padding:clamp(44px,6vw,84px) 0 clamp(28px,4vw,48px);border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(36px,5vw,64px)}
.page-head .lede{margin-top:22px}

/* --- the radial map --------------------------------------- */
.map svg{width:100%;height:auto;overflow:visible}
.map-fig{margin:0}
.ring{fill:none;stroke:var(--line);stroke-width:1}
.ring-far{stroke-dasharray:2 5;stroke:#BCC7C0}
.spoke{stroke:#DEE4DF;stroke-width:1}
.ring-lbl,.pt-lbl,.pt-sub{font-family:var(--mono)}
.ring-lbl{font-size:9px;fill:#6F7F76;letter-spacing:.08em}
.pt-lbl{font-size:11.5px;fill:var(--ink);letter-spacing:.02em;font-weight:500}
.pt-sub{font-size:9px;fill:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.leader{stroke:var(--ink);stroke-width:1;opacity:.4}
.dot{fill:var(--ink)}
.here{fill:var(--marker)}
.here-lbl{fill:var(--marker)}
.pulse{fill:none;stroke:var(--marker);stroke-width:1.5}
.map-cap{font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.05em;
  margin-top:14px;line-height:1.8}

@keyframes pulse{0%{r:6;opacity:.8}100%{r:215;opacity:0}}
@keyframes drawring{from{stroke-dashoffset:1400}to{stroke-dashoffset:0}}
@keyframes popin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.anim .pulse{animation:pulse 4.6s cubic-bezier(.2,.6,.3,1) infinite}
.anim .pulse.p2{animation-delay:1.55s}
.anim .pulse.p3{animation-delay:3.1s}
.anim .ring{stroke-dasharray:1400;animation:drawring 1.5s ease-out both}
.anim .ring:nth-of-type(2){animation-delay:.12s}
.anim .ring:nth-of-type(3){animation-delay:.24s}
.anim .ring:nth-of-type(4){animation-delay:.36s}
.anim .node{animation:popin .55s ease-out both}

/* table fallback for the map data */
.data-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:15px}
.data-table caption{text-align:left;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-bottom:14px}
.data-table th,.data-table td{text-align:left;padding:11px 14px 11px 0;
  border-bottom:1px solid var(--line);vertical-align:top}
.data-table th{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);font-weight:400}
.data-table td.num{font-family:var(--mono);font-size:13.5px;white-space:nowrap}
details.data-toggle{margin-top:20px}
details.data-toggle > summary{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);cursor:pointer;padding:10px 0;
}

/* --- strip ------------------------------------------------ */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2)}
.strip ul{display:flex;flex-wrap:wrap;gap:8px 34px;list-style:none;margin:0;padding:15px 0;
  font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
.strip b{color:var(--ink);font-weight:500}

/* --- sections --------------------------------------------- */
section{padding:clamp(56px,8vw,104px) 0}
section.tight{padding-top:0}
.sec-head{max-width:64ch;margin-bottom:clamp(32px,4vw,54px)}
h2{font-size:clamp(29px,4vw,48px)}
.sec-head p{margin-top:18px}

/* card grid */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:540px){.grid-4{grid-template-columns:1fr}}
.card{background:var(--paper-2);padding:30px 26px 32px;display:flex;flex-direction:column}
.card:hover{background:#FBFCFA}
.card .tag{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--signal-ink);margin:0;padding-bottom:42px}
.card h3{font-size:22px;margin-bottom:10px}
.card p{font-size:15px;color:var(--ink-2);margin:0 0 18px}
.card .more{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  text-decoration:none;color:var(--signal-ink);border-bottom:1.5px solid var(--signal-ink);
  padding-bottom:3px;align-self:flex-start}
.card .more:hover{color:var(--ink);border-color:var(--ink)}

/* --- event list ------------------------------------------- */
.events{border-top:1px solid var(--line);list-style:none;margin:0;padding:0}
.events li{
  display:grid;grid-template-columns:120px 1fr 200px 120px;gap:24px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);transition:padding-left .25s;
}
.events li:hover{padding-left:12px}
.events .date{font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;color:var(--signal-ink)}
.events h3{font-size:20px}
.events .where{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.events .kind{font-family:var(--mono);font-size:10px;color:var(--muted);
  letter-spacing:.14em;text-transform:uppercase}
@media(max-width:840px){
  .events li{grid-template-columns:1fr;gap:5px;padding:20px 0}
  .events .kind{order:-1}
}

/* --- dark band -------------------------------------------- */
.band{background:var(--ink);color:var(--paper);border-radius:16px;padding:clamp(32px,4vw,54px)}
.band h2,.band h3{color:var(--paper)}
.band h2{max-width:20ch}
.band .eyebrow{color:#B9C6D6}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:44px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{border-top:1px solid rgba(242,244,241,.3);padding-top:16px}
.stat .n{font-family:var(--display);font-size:clamp(34px,4vw,50px);font-weight:600;
  letter-spacing:-.03em;color:var(--signal);line-height:1}
.stat .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;
  margin-top:10px;color:#C9D2CB}
.stat p{font-size:14.5px;color:#D6DDD8;margin:10px 0 0;line-height:1.55}

/* --- two column ------------------------------------------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,72px);align-items:start}
@media(max-width:880px){.split{grid-template-columns:1fr}}

.steps{list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:18px 0 18px 46px;
  border-bottom:1px solid var(--line);font-size:15.5px;color:var(--ink-2)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:20px;
  font-family:var(--mono);font-size:11px;color:var(--signal-ink);letter-spacing:.1em}
.steps b{color:var(--ink);font-weight:600}

/* committee */
.people{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;list-style:none;margin:0;padding:0}
@media(max-width:820px){.people{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.people{grid-template-columns:1fr}}
.people li{background:var(--paper-2);padding:24px 22px}
.people .role{font-family:var(--mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--signal-ink);margin:0 0 8px}
.people h3{font-size:19px;margin-bottom:6px}
.people p{font-size:14.5px;color:var(--muted);margin:0}

/* --- form ------------------------------------------------- */
.form{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;
  padding:clamp(24px,3vw,36px)}
.form fieldset{border:0;margin:0 0 26px;padding:0}
.form legend{font-family:var(--display);font-size:20px;font-weight:600;padding:0 0 6px;
  letter-spacing:-.02em}
.field{margin-top:20px}
.field label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}
.field .hint{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:var(--body);font-size:16px;color:var(--ink);
  padding:12px 14px;border:1.5px solid #B9C3BC;border-radius:8px;background:#fff;min-height:46px;
}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--ink-2)}
.req{color:var(--signal-ink);font-family:var(--mono);font-size:12px}
.check{display:flex;gap:12px;align-items:flex-start;margin-top:16px}
.check input{width:20px;height:20px;min-height:0;flex:0 0 20px;margin-top:3px}
.check label{font-weight:400;font-size:15px;color:var(--ink-2);margin:0}
.form-note{font-size:13.5px;color:var(--muted);margin-top:18px}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;padding:20px 0;font-family:var(--display);font-size:19px;font-weight:600;
  letter-spacing:-.02em;list-style:none;display:flex;justify-content:space-between;gap:20px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--signal-ink);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .answer{padding:0 0 22px;max-width:62ch;color:var(--ink-2);font-size:15.5px}

/* --- footer ----------------------------------------------- */
.site-foot{background:var(--paper-2);border-top:1px solid var(--line);padding:clamp(44px,5vw,72px) 0 34px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-grid h2{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin:0 0 16px;font-weight:400}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:4px}
.foot-grid nav a{display:inline-block;padding:5px 0;font-size:14.5px;text-decoration:none;color:var(--ink-2)}
.foot-grid nav a:hover{color:var(--signal-ink);text-decoration:underline}
.foot-note{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--muted);
  display:flex;flex-wrap:wrap;gap:8px 28px}

/* --- reveal on scroll ------------------------------------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}