/*
 * The main site's chrome, for the Academic Map pages: background, scroll bar,
 * nav, buttons and footer. Every rule here is copied verbatim from the
 * <style> block in site/index.html, so /free and the study pages look like
 * the rest of magpietuition.uk. scripts/test-academic-map-site.mjs fails if
 * any rule here stops matching the homepage: change it there, copy it here.
 */
:root{
  --red:#DFA598;
  --amber:#C98A2E;
  --green:#00B67A;
  --label:"Karla",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sh-1:0 1px 2px rgba(30,42,56,.05), 0 2px 8px -4px rgba(30,42,56,.10);
  --sh-2:0 2px 4px rgba(30,42,56,.05), 0 12px 24px -14px rgba(30,42,56,.28);
  --sh-3:0 4px 10px rgba(30,42,56,.06), 0 30px 56px -30px rgba(30,42,56,.42);
  --sh-4:0 6px 14px rgba(30,42,56,.07), 0 48px 80px -44px rgba(30,42,56,.50);
  --wrap:1120px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
body{
  margin:0;color:var(--slate);
  font-family:var(--sans);font-size:16.5px;line-height:1.7;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  background-color:var(--ice);
  background-image:
    radial-gradient(1100px 620px at 82% -8%, rgba(45,156,219,.16), transparent 62%),
    radial-gradient(820px 520px at -10% 6%, rgba(255,255,255,.85), transparent 60%),
    repeating-linear-gradient(to bottom, rgba(30,42,56,.028) 0 1px, transparent 1px 34px);
  background-attachment:fixed,fixed,scroll;
}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

.skip{position:absolute;left:-9999px;top:0;background:var(--blue-dark);color:#fff;padding:12px 18px;z-index:99;font-weight:600}
.skip:focus{left:0}

/* scroll progress */
.topline{position:fixed;top:0;left:0;right:0;height:3px;background:rgba(45,156,219,.20);z-index:60}
.topline::after{
  content:"";display:block;height:100%;width:var(--sp,0%);
  background:linear-gradient(90deg,var(--blue),var(--blue-deep));
  transition:width .12s linear;
}

/* nav */
.nav{
  position:sticky;top:3px;z-index:50;
  border-bottom:1px solid var(--line-2);
  background:rgba(234,244,250,.82);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  transition:box-shadow .3s var(--ease), background .3s var(--ease);
}
.nav.is-stuck{box-shadow:0 10px 30px -22px rgba(30,42,56,.55);background:rgba(240,248,252,.92)}
.nav-in{display:flex;align-items:center;gap:30px;padding:16px 0;transition:padding .3s var(--ease)}
.nav.is-stuck .nav-in{padding:11px 0}
.brand-bird{height:30px;width:auto;margin-right:9px;transition:transform .35s var(--ease)}
.brand:hover .brand-bird{transform:rotate(-7deg) scale(1.06)}
.hero-bird{height:92px;width:auto;margin:0 0 24px;display:block}
.brand{
  display:inline-flex;align-items:center;
  font-family:var(--serif);font-size:21.5px;font-weight:600;
  text-decoration:none;letter-spacing:.005em;white-space:nowrap;
}
.brand i{font-style:normal;color:var(--blue-dark)}
.nav-meta{font-family:var(--label);font-size:11.5px;color:var(--soft-2);letter-spacing:.05em}
.nav-links{margin-left:auto;display:flex;gap:26px;font-size:14.5px}
.nav-links a{
  text-decoration:none;color:var(--soft);position:relative;padding:3px 0;
  transition:color .22s var(--ease);
}
/* The portal link. Deliberately quieter than the booking CTA: signing in is
   for people who are already customers, while the call to action for everyone
   else is still the free session. The lock glyph is decorative - the word
   "sign-in" carries the meaning for a screen reader. */
.nav-portal{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--blue-deep) !important;font-weight:600;
}
.nav-portal svg{flex:none;opacity:.75;transition:transform .22s var(--ease)}
.nav-portal:hover svg{transform:translateY(-1px)}
/* Splitting fees out added a seventh nav item, which wrapped the row to two
   lines between roughly 950 and 1100px. The strapline is the least useful
   thing in that row - it repeats what the hero says immediately below - so
   it stands down first and the links stay on one line. */
@media (max-width:1400px){
  .nav-meta{display:none}
}
@media (max-width:1400px) and (min-width:1251px){
  .nav-links{gap:22px}
  .nav-in .nav-book,.nav-in .nav-wa{min-width:180px}
}
.brand{flex:none}
@media (max-width:1250px) and (min-width:941px){
  .nav-in{gap:24px}
  .nav-links{gap:20px}
  .nav-in .nav-book,.nav-in .nav-wa{min-width:172px}
}
@media (max-width:1250px) and (min-width:601px){
  .nav-in > .nav-wa{margin-left:-16px}
}
@media (max-width:1100px) and (min-width:941px){
  .nav-book .nb-full{display:none}
  .nav-book .nb-short{display:inline}
  .nav-links{gap:14px}
  .nav-in{gap:16px}
  .nav-in .nav-book,.nav-in .nav-wa{min-width:120px;padding:0 12px}
  .nav-in > .nav-wa{margin-left:-8px !important}
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-links a:hover{color:var(--slate)}
.nav-links a:hover::after{transform:scaleX(1)}
/* The booking and WhatsApp buttons are one pair: same height, same width,
   same type. Only the colour tells them apart. */
.nav-book,.nav-wa{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;flex:none;
  box-sizing:border-box;height:42px;min-width:192px;padding:0 16px;
  font-family:var(--label);font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap;
  box-shadow:var(--sh-1);transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-book{color:#fff;background:var(--blue-dark)}
.nav-book:hover{background:var(--blue-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-wa{color:#06301A;background:#1FBF5C}
.nav-wa:hover{background:#17A94F;color:#06301A;transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-wa svg{flex:none}
/* sits tight against the booking button so the two read as one group */
.nav-in > .nav-wa{margin-left:-20px}
.nav-links a{white-space:nowrap}
.nb-short{display:none}
.nav-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:0;
  width:34px;height:34px;position:relative;flex:none;
}
.nav-toggle span{
  display:block;position:absolute;left:5px;right:5px;height:2px;background:var(--slate);
  transition:transform .28s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:10px}
.nav-toggle span:nth-child(2){top:16px}
.nav-toggle span:nth-child(3){top:22px}
.nav.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-weight:700;font-size:15.5px;letter-spacing:.005em;
  background:var(--blue-dark);color:#fff;text-decoration:none;
  padding:15px 28px;border:none;cursor:pointer;text-align:center;
  box-shadow:var(--sh-2);
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.22) 50%,transparent 80%);
  transform:translateX(-110%);transition:transform .6s var(--ease);
}
.btn:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn:hover::after{transform:translateX(110%)}
.btn:active{transform:translateY(0)}
.btn-wa{background:#1FBF5C;color:#06301A}
.btn-wa:hover{background:#17A94F;color:#06301A}

/* footer */
footer{background:#152030;color:#9FB1C4;padding:48px 0 56px}
.foot-in{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:baseline}
footer .brand{color:#fff}
footer .brand i{color:var(--blue)}
.foot-in span,.foot-in a{font-family:var(--label);font-size:12.5px;color:#9FB1C4}
.foot-in a{transition:color .2s var(--ease)}
.foot-in a:hover{color:#fff}
.end-marks{font-family:var(--label);font-size:12.5px;color:var(--blue-dark)}

/* responsive nav, from the homepage's breakpoints */
@media(max-width:940px){
  .nav-toggle{display:block}
  .nav-book{margin-left:auto}
  .nav-links{
    display:none;flex-direction:column;gap:0;margin:0;
    position:absolute;top:100%;left:0;right:0;
    background:var(--ice);border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px -18px rgba(30,42,56,.4);
  }
  .nav.nav-open .nav-links{display:flex}
  .nav-links a{padding:16px 28px;border-top:1px solid var(--line-2);color:var(--slate);font-size:15.5px}
  .nav-links a::after{display:none}
  .nav-links a:first-child{border-top:none}
  .nav-links a:hover{background:var(--ice-2)}
  .nav-meta{display:none}
}
@media(max-width:600px){
  .wrap{padding:0 20px}
  /* keep the nav on one line: brand + book CTA + hamburger must fit 375px */
  .nav-in{gap:10px}
  .brand{font-size:17.5px}
  .brand-bird{height:24px;margin-right:6px}
  .nav-book,.nav-wa{height:36px;min-width:0;font-size:11.5px;padding:0 11px}
  .nav-wa{width:36px;padding:0}
  .nav-in > .nav-wa{margin-left:-4px}
  .nw-label{display:none}
  .nav-book .nb-full{display:none}
  .nav-book .nb-short{display:inline}
  .nav-toggle{width:30px;height:30px}
}
@media(max-width:400px){
  .nav-in{gap:8px}
  .brand{font-size:16.5px}
  .nav-book{font-size:11px;padding:0 10px}
}
@media(prefers-reduced-motion:reduce){
  .nav-book:hover,.btn:hover,.mv:hover,.sub-c:hover{transform:none}
}