*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
/* Layout: una "feria" de mini-navegadores; cada puesto es una ventana de navegador con el sitio del alumno */
:root{
  --bg:#f4f5fa; --surface:#ffffff; --ink:#020447; --muted:#53557e; --line:#d9dbea;
  --accent:#e10600; --accent-ink:#ffffff; --brand:#020447; --chip:#e8e9f4; --band:#020447; --band-ink:#ffffff;
  --display:"Unbounded","Trebuchet MS",sans-serif;
  --body:"Figtree","Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#070a2e; --surface:#10143f; --ink:#eef0ff; --muted:#a6a9d0; --line:#272c62;
  --accent:#ff3b30; --accent-ink:#ffffff; --brand:#b9bdff; --chip:#1b2058; --band:#020447; --band-ink:#ffffff; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#070a2e; --surface:#10143f; --ink:#eef0ff; --muted:#a6a9d0; --line:#272c62;
  --accent:#ff3b30; --accent-ink:#ffffff; --brand:#b9bdff; --chip:#1b2058; --band:#020447; --band-ink:#ffffff; color-scheme:dark}

body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:32px 64px}

.school{background:var(--band);color:var(--band-ink);border-bottom:4px solid var(--accent)}
.school-in{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:14px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.school img{width:64px;height:64px;border-radius:50%;background:#fff;flex:none}
.school-name{display:grid;justify-items:center;text-align:center;line-height:1.2;min-width:0}
.school-name small{font-size:12px;letter-spacing:.12em;text-transform:uppercase;opacity:.8}
.school-name strong{font-family:var(--display);font-size:clamp(17px,3vw,22px);font-weight:700}
.teacher{display:grid;line-height:1.25;text-align:right;margin-left:auto}
.teacher small{font-size:12px;letter-spacing:.08em;text-transform:uppercase;opacity:.75}
.teacher strong{font-weight:700}
@media (max-width:560px){.teacher{text-align:left;flex-basis:100%}}
header.hero{display:grid;gap:14px;padding-bottom:28px;border-bottom:2px dashed var(--line)}
.tag{font-family:var(--mono);font-size:13px;color:var(--brand);letter-spacing:.04em}
h1{font-family:var(--display);font-weight:800;font-size:clamp(30px,6vw,58px);line-height:1.02;margin:0;text-wrap:balance;letter-spacing:-.02em}
h1 mark{background:var(--accent);color:var(--accent-ink);padding:0 .15em;border-radius:6px}
.lead{max-width:62ch;color:var(--muted);font-size:17px;margin:0}
.stats{display:flex;flex-wrap:wrap;gap:22px;margin-top:6px;font-variant-numeric:tabular-nums}
.stats b{font-family:var(--display);font-size:26px;display:block;line-height:1.1}
.stats span{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.06em}

.note{margin-top:20px;background:var(--chip);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:14px;color:var(--muted)}

.controls{display:grid;gap:14px;margin:28px 0 22px}
.search{display:flex;align-items:center;gap:10px;background:var(--surface);border:1.5px solid var(--line);border-radius:999px;padding:4px 16px;max-width:520px}
.search:focus-within{border-color:var(--brand)}
.search input{flex:1;min-width:0;border:0;background:transparent;font:inherit;color:var(--ink);padding:10px 0;outline:none}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:inherit;font-size:14px;font-weight:600;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);padding:7px 14px;border-radius:999px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chip:focus-visible,.open:focus-visible,.react:focus-visible,.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
select.chip{appearance:none;padding-right:30px;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 16px) 52%,calc(100% - 11px) 52%;background-size:5px 5px;background-repeat:no-repeat}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:22px}
.open{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;border-radius:12px 12px 0 0}
.card{display:flex;flex-direction:column;background:var(--surface);border:1.5px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(2,4,71,.5)}
.bar{display:flex;align-items:center;gap:6px;padding:8px 10px;border-bottom:1px solid var(--line)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--line)}
.url{flex:1;min-width:0;margin-left:6px;font-family:var(--mono);font-size:11.5px;color:var(--muted);background:var(--chip);border-radius:6px;padding:3px 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.shot{aspect-ratio:16/10;max-width:100%;position:relative;display:grid;place-items:center;color:#fff;overflow:hidden}
.shot .logo{font-family:var(--display);font-weight:700;font-size:26px;text-align:center;padding:0 16px;line-height:1.1;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.shot .nav{position:absolute;top:10px;left:12px;right:12px;display:flex;gap:6px;justify-content:flex-end}
.shot .nav i{width:28px;height:5px;border-radius:3px;background:rgba(255,255,255,.55)}
.shot .cta{position:absolute;bottom:12px;left:12px;width:64px;height:14px;border-radius:7px;background:rgba(255,255,255,.85)}
.info{padding:14px 16px 16px;display:grid;gap:6px}
.info h3{margin:0;font-family:var(--display);font-weight:700;font-size:17px;line-height:1.2}
.who{color:var(--muted);font-size:14px}
.pill{justify-self:start;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--chip);color:var(--brand);padding:3px 9px;border-radius:999px}
.reacts{display:flex;gap:6px;padding:0 14px 16px;margin-top:auto;flex-wrap:wrap}
.react{font:inherit;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:5px;padding:6px 10px;border-radius:999px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-variant-numeric:tabular-nums}
.react .n{min-width:1ch;color:var(--muted)}
.react[aria-pressed="true"]{border-color:var(--brand);background:var(--chip)}
.react[aria-pressed="true"] .n{color:var(--ink)}
.react.love[aria-pressed="true"]{border-color:var(--accent)}
.react:disabled{cursor:default;opacity:.75}
.react-note{font-size:14px;color:var(--muted);margin:-8px 0 18px}
.empty{padding:40px 0;color:var(--muted)}

dialog{border:0;padding:0;border-radius:18px;max-width:min(560px,calc(100vw - 32px));width:100%;background:var(--surface);color:var(--ink)}
dialog::backdrop{background:rgba(2,4,71,.65)}
.dlg-body{padding:20px 22px 22px;display:grid;gap:12px}
.dlg-body h2{font-family:var(--display);font-size:24px;margin:0;line-height:1.15}
.dlg-body p{margin:0}
.meta{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:14px}
.meta dt{color:var(--muted)}
.meta dd{margin:0;font-weight:600}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.btn{font:inherit;font-weight:700;border-radius:999px;padding:10px 18px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;text-decoration:none}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}
footer{margin-top:48px;color:var(--muted);font-size:14px;border-top:2px dashed var(--line);padding-top:18px}
@media (prefers-reduced-motion:reduce){.card{transition:none}.card:hover{transform:none}}