/* Security Awareness Quiz - design system.
   Tokens first, then components. System fonts and inline SVG only (the Content-Security-Policy allows same-origin assets).
   Light and dark follow the visitor's OS setting; text pairs are chosen for WCAG AA contrast. */
:root{
  color-scheme:light dark;
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --bg:#f4f7fb; --surface:#ffffff; --surface-2:#f8fafc; --text:#0f172a; --muted:#475569; --border:#dbe3ef;
  --primary:#2563eb; --primary-hover:#1d4ed8; --on-primary:#ffffff; --accent-text:#1d4ed8;
  --soft:#e8f0fe; --soft-text:#1e40af; --tint:rgba(37,99,235,.09);
  --ok:#047857; --ok-soft:#ecfdf5; --ok-border:#a7f3d0;
  --bad:#b91c1c; --bad-soft:#fef2f2; --bad-border:#fecaca;
  --warn:#92400e; --warn-soft:#fffbeb; --warn-border:#fde68a;
  --focus:#2563eb; --scrim:rgba(15,23,42,.55);
  --shadow:0 1px 2px rgba(15,23,42,.06),0 10px 28px rgba(15,23,42,.07);
  --radius:16px; --radius-sm:10px;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b1220; --surface:#111a2e; --surface-2:#16213a; --text:#e6edf8; --muted:#a3b1c6; --border:#26365a;
    --primary:#2563eb; --primary-hover:#1d4ed8; --accent-text:#93c5fd;
    --soft:#1b2d52; --soft-text:#bfdbfe; --tint:rgba(59,130,246,.14);
    --ok:#6ee7b7; --ok-soft:#0d2b22; --ok-border:#14532d;
    --bad:#fca5a5; --bad-soft:#3b1219; --bad-border:#7f1d1d;
    --warn:#fcd34d; --warn-soft:#33270a; --warn-border:#78350f;
    --focus:#93c5fd; --scrim:rgba(2,6,16,.72);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.35);
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.55 var(--font);color:var(--text);background:var(--bg) linear-gradient(180deg,var(--tint),transparent 380px) no-repeat;min-height:100vh}
h1,h2,h3{line-height:1.2;margin:0 0 .5rem;letter-spacing:-.01em}
h1{font-size:clamp(1.6rem,1.1rem + 1.8vw,2.25rem);font-weight:750;overflow-wrap:anywhere}
h2{font-size:1.25rem;font-weight:700}
h3{font-size:1rem;font-weight:700;margin-top:1.25rem}
p{margin:0 0 .75rem}
a{color:var(--accent-text)}
main:focus{outline:none}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.hidden{display:none !important}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:0;background:var(--surface);color:var(--text);padding:8px 12px;border:2px solid var(--primary);border-radius:8px;z-index:20}
.skip-link:focus{left:8px;top:8px}
.small{font-size:.875rem;color:var(--muted)}
.lead{font-size:1.125rem;color:var(--muted)}
.icon{width:1.25em;height:1.25em;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---- layout ---- */
.topbar{border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--surface) 88%,transparent)}
.topbar-in{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700}
.brand .icon{width:1.6rem;height:1.6rem;color:var(--primary)}
.wrap{max-width:1080px;margin:0 auto;padding:28px 20px 56px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card.center{text-align:center;max-width:420px;margin:40px auto}
.footer{text-align:center;color:var(--muted);font-size:.8125rem;margin-top:28px}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--soft);color:var(--soft-text);border-radius:999px;padding:5px 12px;font-size:.75rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-bottom:12px}

/* ---- buttons ---- */
button{font-family:inherit}
.primary,.secondary,button.option{min-height:44px;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .15s,border-color .15s,box-shadow .15s,transform .15s}
.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;text-decoration:none;border:1px solid transparent}
.primary{background:var(--primary);color:var(--on-primary)}
.primary:hover:not(:disabled){background:var(--primary-hover)}
.primary:active:not(:disabled){transform:translateY(1px)}
.primary:disabled{opacity:.55;cursor:not-allowed}
.secondary{background:var(--surface);color:var(--text);border-color:var(--border)}
.secondary:hover:not(:disabled){border-color:var(--primary);color:var(--accent-text)}
.secondary:disabled{opacity:.55;cursor:not-allowed}
.danger-btn{color:var(--bad)}
.block{width:100%}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.actions.centered{justify-content:center}

/* ---- landing ---- */
.landing{display:grid;gap:24px;grid-template-areas:"intro" "card" "details"}
.intro{grid-area:intro;padding-top:8px}
.register-card{grid-area:card}
.details{grid-area:details;display:grid;gap:20px}
@media (min-width:900px){
  .landing{grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);grid-template-areas:"intro card" "details card";column-gap:40px;align-items:start}
  .register-card{position:sticky;top:20px}
}
.mission{max-width:60ch}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:12px;margin:20px 0 4px}
.fact{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px}
.fact .icon{width:1.5rem;height:1.5rem;color:var(--primary)}
.fact span.small{display:block;line-height:1.2}
.fact b{display:block;font-size:1.125rem;line-height:1.3}
.steps{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:14px;counter-reset:step}
.steps li{display:flex;gap:14px;align-items:flex-start;counter-increment:step}
.steps li::before{content:counter(step);flex:none;width:28px;height:28px;border-radius:50%;background:var(--soft);color:var(--soft-text);font-weight:700;font-size:.875rem;display:grid;place-items:center}
.steps b{display:block}
.with-icon{display:flex;align-items:center;gap:8px}
.with-icon .icon{color:var(--primary)}
.notice{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;font-size:.875rem;color:var(--muted);line-height:1.6;white-space:pre-line}

/* ---- forms ---- */
.field{margin:0 0 16px}
.field label{display:block;font-weight:600;font-size:.9375rem;margin-bottom:6px}
.field .opt{font-weight:400;color:var(--muted)}
.field input:not([type=checkbox]),.field select{width:100%;min-height:46px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;font:inherit;background:var(--surface);color:var(--text);transition:border-color .15s,box-shadow .15s}
.field input::placeholder{color:var(--muted);opacity:.8}
.field input:focus,.field select:focus{border-color:var(--primary);outline:3px solid var(--tint);outline-offset:0;box-shadow:0 0 0 1px var(--primary)}
.field input[aria-invalid="true"],.field select[aria-invalid="true"]{border-color:var(--bad)}
.field .err{color:var(--bad);font-size:.875rem;font-weight:600;margin-top:5px}
.field .err:empty{display:none}
.check{display:flex !important;gap:10px;align-items:flex-start;font-weight:400 !important;font-size:.9375rem;line-height:1.45}
.check input{width:20px;height:20px;margin-top:2px;flex:none;accent-color:var(--primary)}
.alert{border-radius:var(--radius-sm);padding:12px 14px;margin:0 0 16px;font-size:.9375rem;line-height:1.45;border:1px solid}
.alert.error{background:var(--bad-soft);border-color:var(--bad-border);color:var(--bad)}
.alert.warn{background:var(--warn-soft);border-color:var(--warn-border);color:var(--warn)}
.alert.info{background:var(--soft);border-color:var(--border);color:var(--soft-text)}
.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 12px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---- ready screen ---- */
.ready{max-width:560px;margin:24px auto;text-align:center}
.avatar{width:64px;height:64px;border-radius:50%;background:var(--soft);color:var(--soft-text);font-weight:700;font-size:1.375rem;display:grid;place-items:center;margin:0 auto 14px}
.ready .facts{text-align:left}

/* ---- rules dialog ---- */
dialog{border:1px solid var(--border);border-radius:20px;padding:24px;width:min(760px,calc(100% - 24px));max-height:calc(100dvh - 24px);color:var(--text);background:var(--surface);box-shadow:var(--shadow)}
dialog::backdrop{background:var(--scrim)}
dialog[open]{animation:pop .18s ease-out}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
dialog.modal{padding:0;width:min(640px,calc(100% - 24px));overflow:hidden}
dialog.modal[open]{display:flex;flex-direction:column}
.modal-head{display:flex;gap:14px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--border)}
.modal-head h2{margin:0}
.modal-head p{margin:2px 0 0}
.modal-icon{flex:none;width:44px;height:44px;border-radius:12px;background:var(--soft);color:var(--primary);display:grid;place-items:center}
.modal-icon .icon{width:1.5rem;height:1.5rem}
.modal-body{padding:20px 24px;overflow-y:auto}
.modal-body h3:first-child{margin-top:0}
.modal-foot{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap;padding:16px 24px;border-top:1px solid var(--border);background:var(--surface-2)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.tile{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center}
.tile .icon{color:var(--primary);width:1.375rem;height:1.375rem}
.tile b{display:block;font-size:1.25rem;line-height:1.3}
.tile span.small{display:block}
.checklist{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:10px}
.checklist li{display:flex;gap:10px;align-items:flex-start}
.checklist .icon{margin-top:.2em;color:var(--ok)}
.checklist.info .icon{color:var(--primary)}

/* ---- quiz ---- */
.quiz{max-width:760px;margin:0 auto}
.quiz-head{padding:16px 20px;margin-bottom:16px}
.quiz-head-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.quiz-head-row .small{font-weight:600;color:var(--text)}
.timer-chip{display:inline-flex;align-items:center;gap:8px;background:var(--soft);color:var(--soft-text);border-radius:999px;padding:6px 14px;font-weight:700;font-size:1.125rem;font-variant-numeric:tabular-nums;transition:background-color .2s,color .2s}
.timer-chip.low{background:var(--bad-soft);color:var(--bad);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{opacity:.65}}
.segs{display:flex;gap:6px}
.seg{flex:1;height:8px;border-radius:99px;background:var(--border);transition:background-color .25s}
.seg.done{background:var(--primary)}
.seg.current{background:var(--soft-text);opacity:.55}
.qcard{padding:24px}
.q-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.q-meta .badge{margin:0}
.q-icon{width:36px;height:36px;border-radius:10px;background:var(--soft);display:grid;place-items:center;font-size:1.125rem}
.qcard h2{font-size:1.5rem}
.scenario{background:var(--surface-2);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius-sm);padding:14px 16px;margin:14px 0;font-size:.9375rem;white-space:pre-line;overflow-wrap:anywhere}
.prompt{font-weight:700;font-size:1.0625rem;margin:16px 0 12px}
.options{display:grid;gap:10px}
button.option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:12px 14px;background:var(--surface);color:var(--text);border:2px solid var(--border);font-weight:500}
button.option .key{flex:none;width:30px;height:30px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border);display:grid;place-items:center;font-weight:700;font-size:.875rem}
button.option .opt-text{flex:1}
button.option .icon{flex:none}
button.option:hover:not(:disabled){border-color:var(--primary);background:var(--tint)}
button.option:disabled{cursor:default}
button.option.pending{opacity:.7}
button.option.correct{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}
button.option.wrong{border-color:var(--bad);background:var(--bad-soft);color:var(--bad)}
button.option.correct .key,button.option.wrong .key{background:transparent;border-color:currentColor}
.feedback{margin-top:16px;border-radius:var(--radius-sm);padding:14px 16px;border:1px solid;font-size:.9375rem}
.feedback:empty{display:none}
.feedback.ok{background:var(--ok-soft);border-color:var(--ok-border);color:var(--ok)}
.feedback.bad{background:var(--bad-soft);border-color:var(--bad-border);color:var(--bad)}
.fb-head{display:flex;align-items:center;gap:8px;font-size:1rem}
.feedback .why{display:block;color:var(--text);margin-top:6px;line-height:1.5}
.message{min-height:0;margin-top:14px;font-weight:600}
.message:empty{display:none}
.message.bad{color:var(--bad)}
.note{text-align:center;margin-top:16px}

/* ---- result ---- */
.final{max-width:720px;margin:0 auto;text-align:center;padding:32px 24px}
.ring-wrap{position:relative;width:160px;height:160px;margin:4px auto 16px;color:var(--primary)}
.ring-wrap.ok{color:var(--ok)} .ring-wrap.bad{color:var(--bad)}
.ring{width:100%;height:100%}
.ring-bg{fill:none;stroke:var(--border);stroke-width:10}
.ring-fill{fill:none;stroke:currentColor;stroke-width:10;stroke-linecap:round;stroke-dasharray:0 327;transition:stroke-dasharray .8s ease-out}
.ring-text{position:absolute;inset:0;display:grid;place-items:center}
.ring-text b{font-size:2.25rem;font-variant-numeric:tabular-nums}
.score{font-size:1.125rem;font-weight:700}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:20px 0;text-align:center}
.stat{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:14px 12px}
.stat .small{display:block;font-size:.8125rem}
.stat b{display:block;font-size:1.375rem;margin-top:2px}
.pill{display:inline-block;border-radius:999px;padding:4px 12px;font-size:.8125rem;font-weight:700}
.pill.ok{background:var(--ok-soft);color:var(--ok)} .pill.bad{background:var(--bad-soft);color:var(--bad)} .pill.neutral{background:var(--surface-2);color:var(--muted);border:1px solid var(--border)}
.review{list-style:none;margin:12px 0 20px;padding:0;display:grid;gap:8px;text-align:left}
.rev{border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.rev summary{display:flex;align-items:center;gap:10px;padding:12px 14px;cursor:pointer;font-weight:600;list-style:none}
.rev summary::-webkit-details-marker{display:none}
.rev summary .rev-title{flex:1}
.rev.ok>details>summary>.icon{color:var(--ok)} .rev.bad>details>summary>.icon{color:var(--bad)}
.rev-body{padding:0 14px 14px 44px;font-size:.9375rem}
.rev-body p{margin:0 0 6px}

/* ---- admin ---- */
.admin-bar{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:16px}
.admin-title{margin-bottom:20px}
.admin-title p{color:var(--muted);margin:0}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:20px 0 16px;padding:4px;background:var(--surface-2);border:1px solid var(--border);border-radius:999px;width:fit-content;max-width:100%}
.tab{border:0;background:transparent;border-radius:999px;padding:8px 16px;font-weight:600;cursor:pointer;font-size:.9375rem;color:var(--muted);min-height:40px;transition:background-color .15s,color .15s}
.tab:hover{color:var(--text)}
.tab[aria-selected="true"]{background:var(--primary);color:var(--on-primary)}
.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:4px}
.filters .field{margin:0}
.panel-card{padding:20px}
.stats-dash{margin-top:0;text-align:left}
.stats-dash .stat{background:var(--surface);box-shadow:var(--shadow)}
.stats-dash .stat .small{text-transform:uppercase;letter-spacing:.05em;font-size:.75rem}
.stats-dash .stat b{font-size:1.75rem}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.875rem}
th,td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle;white-space:nowrap}
th{background:var(--surface-2);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);position:sticky;top:0}
tbody tr:hover{background:var(--tint)}
tr:last-child td{border-bottom:0}
td.wrap-cell{white-space:normal;min-width:200px}
td .secondary{min-height:34px;padding:4px 14px;font-size:.875rem}
.pager{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:12px;font-size:.875rem;color:var(--muted)}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;font-size:.9375rem;margin:12px 0}
.kv dt{color:var(--muted)} .kv dd{margin:0;overflow-wrap:anywhere}
.login-card{max-width:420px;margin:32px auto}

@media (max-width:720px){
  .wrap{padding:20px 14px 40px}
  .card,.qcard{padding:18px}
  .quiz-head{padding:14px 16px}
  .qcard h2{font-size:1.25rem}
  .modal-head,.modal-body,.modal-foot{padding-left:18px;padding-right:18px}
  .modal-foot .primary{flex:1;white-space:nowrap}
  .modal-foot .secondary{flex:0 0 auto}
  .rev-body{padding-left:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
}

/* ---- email sign-in code + winner board ---- */
.field input.code-input{font-size:1.75rem;letter-spacing:.5em;text-align:center;font-variant-numeric:tabular-nums;padding-left:.5em}
.winner-card{margin-bottom:20px;border-left:4px solid var(--ok)}
.winner-head{display:flex;gap:14px;align-items:center;margin-bottom:8px}
.winner-head h2,.winner-head p{margin:0}
.winner-icon{flex:none;width:44px;height:44px;border-radius:12px;background:var(--ok-soft);color:var(--ok);display:grid;place-items:center}
.winner-icon .icon{width:1.5rem;height:1.5rem}
.winner-line{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:6px 0}
.winner-line b{font-size:1.25rem}
tr.top-row td{background:var(--ok-soft);font-weight:600}