:root{
  --bg:#EAF7F5; --surface:#FFFFFF; --ink:#2B3A42; --muted:#5B686C; --line:#D5E7E4;
  --primary:#2A7A73; --primary-ink:#FFFFFF; --brand:#61B9B1; --soft:#D6EFEB; --warn:#8A520F; --warn-bg:#FBF0DD;
  --ok:#2F6B4F; --danger:#A33A3A;
  --serif:"Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --sans:"Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.18;letter-spacing:-.01em;margin:0}
p{margin:0 0 .9em}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:24px 20px 64px}
.narrow{max-width:620px;margin:0 auto;padding:40px 20px 80px}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 20px;font-weight:600;cursor:pointer;background:var(--primary);color:var(--primary-ink);text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.link{background:none;border:none;color:var(--primary);padding:6px 0;font-weight:600}
.btn.danger{background:transparent;border-color:var(--line);color:var(--danger)}
.btn.sm{padding:7px 12px;font-size:.875rem;border-radius:8px}
label.f{display:block;font-weight:600;font-size:.9rem;margin:16px 0 6px}
.input,select.input,textarea.input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
textarea.input{min-height:120px;resize:vertical;line-height:1.45}
.check{display:flex;gap:10px;align-items:flex-start;padding:8px 0;cursor:pointer}
.check input{margin-top:4px;width:18px;height:18px;accent-color:var(--primary)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
.err{color:var(--danger);font-weight:600;margin-top:10px;min-height:1.5em}

/* participante */
.brand{font-family:var(--serif);font-size:1.05rem;color:var(--muted);margin-bottom:56px}
.code-input{width:100%;font-family:var(--sans);font-size:clamp(1.8rem,7vw,2.6rem);font-weight:600;letter-spacing:.28em;text-transform:uppercase;padding:14px 0 10px;border:none;border-bottom:3px solid var(--ink);background:transparent;border-radius:0}
.code-input:focus-visible{outline:none;border-bottom-color:var(--primary)}
.lead{font-family:var(--serif);font-size:clamp(1.9rem,5.5vw,2.7rem);margin-bottom:18px}
.points{list-style:none;padding:0;margin:24px 0}
.points li{padding:14px 0;border-top:1px solid var(--line)}
.points li:last-child{border-bottom:1px solid var(--line)}
.points strong{display:block}
.progress{height:4px;background:var(--line);border-radius:4px;overflow:hidden;margin-bottom:14px}
.progress span{display:block;height:100%;background:var(--brand);transition:width .25s ease}
.qmeta{display:flex;justify-content:space-between;gap:12px;font-size:.85rem;color:var(--muted);margin-bottom:40px}
.qstem{font-size:.95rem;color:var(--muted);margin-bottom:10px}
.qtext{font-family:var(--serif);font-weight:500;font-size:clamp(1.4rem,4.2vw,1.95rem);line-height:1.28;margin-bottom:32px}
.opts{display:grid;gap:10px}
.opt{display:flex;align-items:center;gap:14px;text-align:left;width:100%;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface);cursor:pointer;font-size:1.02rem}
.opt kbd{font-family:var(--sans);font-size:.8rem;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:1px 7px;min-width:26px;text-align:center}
.opt[aria-pressed="true"]{border-color:var(--primary);background:var(--soft);box-shadow:inset 0 0 0 1px var(--primary)}
.qnav{display:flex;justify-content:space-between;margin-top:28px}
.help{background:var(--warn-bg);border-left:4px solid var(--warn);padding:16px 18px;border-radius:0 10px 10px 0;margin-top:28px}
@media (prefers-reduced-motion: reduce){.progress span{transition:none}}

/* administración */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
body.admin::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
.topin{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.topin h1{font-size:1.35rem;margin-right:auto}
nav.tabs{display:flex;gap:4px;overflow-x:auto;max-width:100%}
nav.tabs button{background:none;border:none;padding:8px 12px;border-radius:8px;cursor:pointer;font-weight:600;color:var(--muted);white-space:nowrap}
nav.tabs button[aria-current="page"]{color:var(--ink);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line)}
.grid2{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:820px){.grid2{grid-template-columns:1fr}}
.sec-title{font-size:1.6rem;margin:12px 0 18px}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:16px 0;border-top:1px solid var(--line)}
.row:first-child{border-top:none;padding-top:0}
.row h3{font-size:1.2rem;margin-bottom:4px}
.code{font-weight:700;letter-spacing:.14em}
.tag{display:inline-block;font-size:.78rem;padding:2px 8px;border-radius:20px;background:var(--soft);margin:2px 4px 2px 0}
.tag.off{background:transparent;border:1px solid var(--line);color:var(--muted)}
.actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;align-items:start}
.empty{padding:28px;text-align:center;color:var(--muted)}
.stats{display:flex;gap:32px;flex-wrap:wrap;margin:6px 0 20px}
.stat b{display:block;font-family:var(--serif);font-size:2.1rem;font-weight:700;color:var(--primary);line-height:1}
.stat span{font-size:.85rem;color:var(--muted)}
.inst-block{padding:18px 0;border-top:1px solid var(--line)}
.bar{display:flex;height:14px;border-radius:7px;overflow:hidden;background:var(--line);margin:10px 0 8px}
.bar span{display:block;height:100%}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.82rem;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.tablewrap{overflow-x:auto;margin-top:12px}
table{border-collapse:collapse;width:100%;font-size:.88rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:600}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:600;z-index:20;max-width:90vw}
.group{margin-bottom:8px}
.group-h{font-family:var(--serif);font-size:1.05rem;color:var(--muted);margin:18px 0 4px;padding-bottom:4px;border-bottom:1px solid var(--line)}
.aviso{display:block;margin-top:6px;font-size:.84rem;color:var(--warn);background:var(--warn-bg);padding:8px 10px;border-radius:8px}
.notice{background:var(--soft);padding:12px 14px;border-radius:10px;font-size:.9rem;margin-bottom:16px}

.login{max-width:400px;margin:12vh auto;padding:0 20px}
.consent-extra{margin-top:18px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}

.logo{display:block;height:44px;width:auto;max-width:220px}
header.top .logo{height:34px}
.brand picture + span{display:none}
.logo-wrap{display:inline-block;line-height:0}
.hero-foto{display:block;width:100%;height:auto;aspect-ratio:2/1;object-fit:cover;object-position:center 45%;border-radius:16px;margin:-28px 0 32px}
@media (max-width:520px){.hero-foto{aspect-ratio:16/10;border-radius:12px;margin:-36px 0 24px}}