/* ============================================================
   STEM FEST — base.css
   Themes, typography and shared components. Loads on every screen.
   ============================================================ */


/* ============================================================
   STEM FEST — all styles inline, nothing external to load
   ============================================================ */

/* ---------- DARK THEME (default, softened) ---------- */
:root,
html[data-theme="dark"]{
  --bg:#16181D;
  --panel:#1E2128;
  --raise:#262A32;
  --line:#333944;
  --text:#ECEEF2;
  --muted:#A4ACBA;
  --accent:#F4506A;
  --accent-soft:rgba(244,80,106,.14);
  --accent-line:rgba(244,80,106,.42);
  --grid:rgba(255,255,255,.045);
  --shadow:0 10px 40px rgba(0,0,0,.32);
}

/* ---------- LIGHT THEME ---------- */
html[data-theme="light"]{
  --bg:#FFFFFF;
  --panel:#F6F7F9;
  --raise:#EDEFF3;
  --line:#DEE3EA;
  --text:#171A20;
  --muted:#5C6573;
  --accent:#D6294A;
  --accent-soft:rgba(214,41,74,.09);
  --accent-line:rgba(214,41,74,.34);
  --grid:rgba(0,0,0,.05);
  --shadow:0 10px 34px rgba(20,25,35,.09);
}

:root{
  --display:"Plus Jakarta Sans",system-ui,-apple-system,sans-serif;
  --body:"Inter",system-ui,-apple-system,sans-serif;
  --form-bg:#FFFFFF;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background .25s ease,color .25s ease;
}

img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
a{color:inherit}

/* ---------- type ---------- */
.eyebrow{
  font-family:var(--body);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
}
.eyebrow i{color:var(--muted);font-style:normal;font-weight:400}

.hero-title{
  font-family:var(--display);
  font-weight:800;
  letter-spacing:-.035em;
  line-height:.95;
}
.hero-title em{font-style:normal;color:var(--accent)}

.h1-alt,.h2{
  font-family:var(--display);
  font-weight:700;
  letter-spacing:-.028em;
  line-height:1.08;
}

.lede{color:var(--muted);max-width:60ch;font-size:18px}
p{color:var(--muted)}

.note{
  font-size:16px;color:var(--muted);
  border-left:3px solid var(--accent);
  padding:12px 0 12px 18px;
  margin-top:28px;max-width:62ch;
}
.note a{color:var(--accent)}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--body);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  padding:15px 28px;
  border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:52px;
  transition:background .18s,color .18s,border-color .18s,box-shadow .18s,transform .12s;
  -webkit-tap-highlight-color:transparent;
}
.btn-solid{background:var(--accent);color:#fff}
.btn-solid:hover{box-shadow:0 8px 26px var(--accent-soft),0 0 0 1px var(--accent)}
.btn-ghost{border:1px solid var(--accent-line);color:var(--accent);background:var(--accent-soft)}
.btn-ghost:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn .arw{font-size:17px;line-height:1}

/* ---------- views ---------- */
.view{animation:enter .3s ease both}
@keyframes enter{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- brand ---------- */
.brand{
  font-family:var(--display);
  font-weight:800;
  letter-spacing:-.02em;
  display:flex;align-items:center;gap:11px;
  text-decoration:none;
}
.brand-glyph{
  width:32px;height:32px;flex:none;border-radius:50%;
  background:var(--accent-soft);
  display:grid;place-items:center;
  border:1px solid var(--accent-line);
}
.brand-glyph svg{width:20px;height:20px;stroke:var(--accent);fill:var(--accent)}

/* ---------- theme toggle ---------- */
.themer{
  width:42px;height:42px;flex:none;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--panel);
  display:grid;place-items:center;
  transition:border-color .18s,background .18s;
}
.themer:hover{border-color:var(--accent-line)}
.themer:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.themer svg{width:19px;height:19px;stroke:var(--text);fill:none;stroke-width:1.7}
html[data-theme="dark"] .themer .i-sun{display:block}
html[data-theme="dark"] .themer .i-moon{display:none}
html[data-theme="light"] .themer .i-sun{display:none}
html[data-theme="light"] .themer .i-moon{display:block}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(90% 70% at 50% 18%,#000 0%,transparent 72%);
          mask-image:radial-gradient(90% 70% at 50% 18%,#000 0%,transparent 72%);
}
.hero-inner{position:relative;z-index:2}
.hero-lede{color:var(--muted);font-size:19px;max-width:48ch;margin-top:22px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}

.pillrow{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin-top:44px}
.pill{
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:10px;
  padding:14px 20px;
}
.pill-k{
  display:block;font-size:12px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  margin-bottom:2px;
}
.pill-v{
  display:block;font-family:var(--display);font-weight:700;
  font-size:19px;letter-spacing:-.02em;
}

/* ---------- ticker ---------- */
.ticker{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  padding:15px 0;
}
.ticker-track{
  display:flex;align-items:center;gap:26px;
  white-space:nowrap;width:max-content;
  animation:slide 38s linear infinite;
  font-size:15px;font-weight:500;color:var(--muted);
}
.ticker-track i{color:var(--accent);font-style:normal;font-size:9px}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- section head ---------- */
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.head .h2{margin-top:10px}

/* ---------- cards ---------- */
.cards{display:grid;gap:22px;margin-top:38px}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s,transform .2s,box-shadow .2s;
}
.card:hover{border-color:var(--accent-line);transform:translateY(-3px);box-shadow:var(--shadow)}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  display:grid;place-items:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.card-media::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:28px 28px;
}
.card-sym{
  font-family:var(--display);font-weight:800;
  font-size:60px;letter-spacing:-.03em;
  color:#fff;position:relative;z-index:2;
  text-shadow:0 6px 24px rgba(0,0,0,.4);
}
.card-no{
  position:absolute;left:16px;bottom:13px;z-index:2;
  font-size:13px;font-weight:600;letter-spacing:.1em;
  color:rgba(255,255,255,.72);
}
.m-mp{background:linear-gradient(140deg,#4A2233,#26303F)}
.m-cb{background:linear-gradient(140deg,#1E3A36,#272334)}
.m-cs{background:linear-gradient(140deg,#332748,#222831)}
.m-ma{background:linear-gradient(140deg,#43291A,#242229)}
.m-pd{background:linear-gradient(140deg,#1B3348,#2A2130)}
.m-fc{background:linear-gradient(140deg,#452038,#1F2740)}

.badge{
  position:absolute;top:14px;right:14px;z-index:3;
  font-size:12.5px;font-weight:600;letter-spacing:.05em;
  background:rgba(0,0,0,.42);
  border:1px solid rgba(255,255,255,.34);
  color:#fff;
  padding:5px 12px;border-radius:999px;
  backdrop-filter:blur(6px);
}

.card-body{padding:24px}
.card-title{
  font-family:var(--display);font-weight:700;
  font-size:23px;letter-spacing:-.025em;
  margin-bottom:9px;
}
.card-body p{font-size:16px}
.card-stats{
  display:flex;gap:8px;flex-wrap:wrap;margin-top:20px;
  padding-top:18px;border-top:1px solid var(--line);
}
.card-stats span{
  font-size:13px;font-weight:500;color:var(--muted);
  background:var(--raise);border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;
}
.card-stats b{color:var(--text);font-weight:600}

/* ---------- steps ---------- */
.steps{list-style:none;margin-top:32px;border-top:1px solid var(--line)}
.steps li{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line)}
.step-n{
  font-family:var(--display);font-size:15px;font-weight:700;
  color:var(--accent);flex:none;padding-top:4px;
}
.steps h3{
  font-family:var(--display);font-weight:700;font-size:21px;
  letter-spacing:-.022em;margin-bottom:5px;
}
.steps p{font-size:16px;max-width:58ch}

/* ---------- cta slab ---------- */
.cta-slab{
  border:1px solid var(--line);
  background:
    radial-gradient(120% 160% at 100% 0%,var(--accent-soft),transparent 62%),
    var(--panel);
  border-radius:14px;
  padding:38px;
  display:flex;align-items:center;justify-content:space-between;
  gap:30px;flex-wrap:wrap;
}
.slab-lede{margin-top:12px;max-width:46ch}

/* ---------- form ---------- */
.formshell{
  margin:30px auto 0;
  max-width:780px;
  background:var(--form-bg);
  border:1px solid var(--line);
  border-radius:16px;
  padding:14px 10px;
  box-shadow:var(--shadow);
}
.formshell iframe{display:block;border-radius:10px;background:transparent}

/* ---------- team ---------- */
.people{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:36px;border-radius:12px;overflow:hidden}
.person{background:var(--panel);padding:28px 24px}
.face{
  width:50px;height:50px;border-radius:50%;
  background:var(--accent-soft);
  border:1px solid var(--accent-line);
  color:var(--accent);
  display:grid;place-items:center;
  font-family:var(--display);font-size:15px;font-weight:700;
  margin-bottom:18px;
}
.person h3{
  font-family:var(--display);font-weight:700;font-size:21px;letter-spacing:-.022em;
}
.role{
  font-size:13px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--accent);margin:3px 0 10px;
}
.person p{font-size:15.5px}

/* ---------- winners ---------- */
.empty{
  margin-top:32px;
  border:1px dashed var(--line);
  border-radius:12px;
  background:var(--panel);
  padding:54px 24px;text-align:center;
}
.empty b{
  font-family:var(--display);font-weight:700;font-size:25px;
  letter-spacing:-.025em;display:block;margin-bottom:7px;
}

.board{margin-top:24px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.board-head{
  display:flex;align-items:center;gap:14px;
  background:var(--raise);
  padding:16px 22px;border-bottom:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--muted);
}
.board-head i{color:var(--accent);font-style:normal}
.board-sym{
  font-family:var(--display);font-weight:800;font-size:17px;
  color:var(--accent);letter-spacing:-.02em;
}
.row{
  display:flex;align-items:center;gap:18px;
  padding:19px 22px;border-bottom:1px solid var(--line);
  background:var(--panel);
}
.row:last-child{border-bottom:none}
.row.is-first{background:linear-gradient(90deg,var(--accent-soft),transparent)}
.rank{font-family:var(--display);font-size:14px;font-weight:700;color:var(--muted);flex:none}
.row.is-first .rank{color:var(--accent)}
.who h3{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.022em}
.school{font-size:14px;color:var(--muted)}
.medal{
  margin-left:auto;font-size:12.5px;font-weight:600;
  letter-spacing:.05em;color:var(--muted);
  border:1px solid var(--line);padding:6px 13px;border-radius:999px;
}
.row.is-first .medal{color:var(--accent);border-color:var(--accent-line)}

/* ---------- faq ---------- */
.faq{margin-top:44px;border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
details summary{
  list-style:none;cursor:pointer;
  padding:21px 0;min-height:58px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-family:var(--display);font-weight:700;
  font-size:19px;letter-spacing:-.022em;
  -webkit-tap-highlight-color:transparent;
}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--accent);flex:none;font-size:22px;font-weight:600}
details[open] summary::after{content:"–"}
details summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
details p{padding-bottom:22px;font-size:16.5px;max-width:62ch}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--panel)}
.foot-brand{font-family:var(--display);font-weight:800;letter-spacing:-.03em;color:var(--text)}
.foot-cols{display:flex;gap:60px;flex-wrap:wrap}
.foot-link{
  display:block;text-align:left;
  font-size:16px;color:var(--muted);text-decoration:none;
  padding:6px 0;transition:color .16s;
}
.foot-link:hover{color:var(--accent)}
.foot-legal{font-size:14px;color:var(--muted)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}