/* Layout: a training manual on a till-counter: steady single column, phased steps with numbered rails, screenshots as the hero of each step */
:root{
  --bg:#f3f5f4; --surface:#ffffff; --ink:#17201f; --muted:#5a6866; --line:#d8dfdd;
  --accent:#0f6b66; --accent-ink:#ffffff; --accent-soft:#e1efed;
  --mark:#e8650c; --mark-soft:#fdeee3; --mark-ink:#8a3a03;
  --good:#1d7a3e; --good-soft:#e3f3e8; --bad:#b4282d; --bad-soft:#fbe7e7;
  --display:"Barlow Semi Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#101615; --surface:#18201f; --ink:#e6eceb; --muted:#9aa9a6; --line:#2b3634;
  --accent:#4fb8ae; --accent-ink:#06201d; --accent-soft:#16312e;
  --mark:#ff8a3d; --mark-soft:#33210f; --mark-ink:#ffc39a;
  --good:#5cc985; --good-soft:#11291a; --bad:#f07a7e; --bad-soft:#331617; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#101615; --surface:#18201f; --ink:#e6eceb; --muted:#9aa9a6; --line:#2b3634;
  --accent:#4fb8ae; --accent-ink:#06201d; --accent-soft:#16312e;
  --mark:#ff8a3d; --mark-soft:#33210f; --mark-ink:#ffc39a;
  --good:#5cc985; --good-soft:#11291a; --bad:#f07a7e; --bad-soft:#331617; color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--body);
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:0 64px}
.wrap{max-width:880px;margin:0 auto}
h1,h2,h3{font-family:var(--display);text-wrap:balance;line-height:1.15;margin:0}
h1{font-size:clamp(2rem,5vw,2.8rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:1.7rem;font-weight:700}
h3{font-size:1.3rem;font-weight:600}
p{margin:0}
.mono,.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.eyebrow{font:600 .78rem/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
button{font:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--mark);outline-offset:2px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:8px;padding:12px 20px;font-weight:600;background:var(--accent);color:var(--accent-ink)}
.btn:hover{filter:brightness(1.08)}
.btn[disabled]{opacity:.45;cursor:not-allowed;filter:none}
.btn.ghost{background:transparent;color:var(--accent);box-shadow:inset 0 0 0 2px var(--accent)}
.btn.small{padding:8px 14px;font-size:.9rem}

/* top band */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:18px;border-bottom:1px solid var(--line);margin-bottom:28px}
.brand{display:flex;align-items:center;gap:14px}
.logo{background:#fff;border-radius:6px;padding:6px 10px;display:flex}
.logo img{height:30px;width:auto;display:block}
.brand .who{font-size:.85rem;color:var(--muted);line-height:1.3}
.brand .who b{color:var(--ink);font-weight:600;display:block}
.steps-nav{display:flex;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.steps-nav li{font-size:.82rem;font-weight:600;padding:6px 12px;border-radius:999px;color:var(--muted);background:transparent}
.steps-nav li.on{background:var(--accent-soft);color:var(--accent)}
.steps-nav li.done{color:var(--good)}
.adminlink{font-size:.82rem;background:none;border:0;color:var(--muted);text-decoration:underline}

/* start */
.hero{display:grid;gap:20px;padding-block:12px 8px}
.hero p.lead{font-size:1.1rem;color:var(--muted);max-width:60ch}
.facts{display:flex;gap:24px;flex-wrap:wrap;font-size:.92rem}
.facts div{display:flex;flex-direction:column}
.facts b{font-family:var(--display);font-size:1.5rem;line-height:1.1}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px}
form.start{display:grid;gap:16px;margin-top:24px;max-width:520px}
label{display:grid;gap:6px;font-weight:600;font-size:.92rem}
input[type=text]{font:inherit;font-weight:400;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.hint{font-weight:400;color:var(--muted);font-size:.85rem}
.err{color:var(--bad);font-size:.9rem}

/* tutorial */
.phase{margin-top:44px}
.phase-head{display:flex;align-items:baseline;gap:12px;padding-bottom:10px;border-bottom:2px solid var(--ink);margin-bottom:8px}
.phase-head .eyebrow{color:var(--accent)}
.step{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding-block:24px;border-bottom:1px solid var(--line)}
.step:last-child{border-bottom:0}
.sn{font:700 1.4rem/1 var(--display);width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--accent-ink)}
.sbody{display:grid;gap:12px;min-width:0}
.sbody ul,.sbody ol{margin:0;padding-left:1.2em;display:grid;gap:4px}
.shot{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;cursor:zoom-in;padding:0;display:block;width:100%}
.shot img{display:block;width:100%;height:auto}
.cap{font-size:.84rem;color:var(--muted)}
.tag{display:inline-block;font:500 .82rem/1.3 var(--mono);background:var(--accent-soft);color:var(--accent);padding:1px 6px;border-radius:4px;white-space:nowrap}
kbd{font:600 .82rem/1.3 var(--mono);border:1px solid var(--line);border-bottom-width:3px;border-radius:5px;padding:0 6px;background:var(--surface)}
.dot{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--mark);color:#fff;font:700 .75rem/1 var(--body);vertical-align:1px}
.watch{background:var(--mark-soft);border-left:4px solid var(--mark);border-radius:0 8px 8px 0;padding:14px 16px;display:grid;gap:6px}
.watch .eyebrow{color:var(--mark-ink)}
.watch p,.watch li{color:var(--ink)}
.rule{background:var(--accent-soft);border-radius:8px;padding:14px 16px;display:grid;gap:6px}
.example{overflow-x:auto}
.example table{border-collapse:collapse;font-size:.88rem;min-width:420px}
.example th,.example td{text-align:left;padding:6px 10px;border-bottom:1px solid var(--line)}
.example td.num{text-align:right}
.ok{color:var(--good);font-weight:600}.no{color:var(--bad);font-weight:600}
.keys{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px 24px;margin-top:12px}
.keys div{display:flex;gap:10px;align-items:baseline}
.ready{margin-top:40px;display:grid;gap:14px;justify-items:start}

/* test */
.qprog{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-block:12px 24px}
.qprog i{display:block;height:100%;background:var(--accent);transition:width .25s}
.qtext{font-size:1.2rem;font-weight:600;line-height:1.45;margin-bottom:18px}
.opts{display:grid;gap:10px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;background:var(--surface);color:var(--ink);border:2px solid var(--line);border-radius:10px;padding:14px 16px;width:100%}
.opt:hover{border-color:var(--accent)}
.opt[aria-checked=true]{border-color:var(--accent);background:var(--accent-soft)}
.opt .l{font:600 .9rem/1.5 var(--mono);color:var(--muted);flex:none}
.qnav{display:flex;justify-content:space-between;gap:12px;margin-top:24px;flex-wrap:wrap}
.qimg{margin-bottom:16px}

/* result */
.score{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.big{font:700 4.5rem/1 var(--display);font-variant-numeric:tabular-nums}
.pill{display:inline-block;justify-self:start;font-weight:700;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 12px;border-radius:999px}
.pill.pass{background:var(--good-soft);color:var(--good)}.pill.fail{background:var(--bad-soft);color:var(--bad)}
.cert{margin-top:24px;display:grid;gap:12px}
.cert img{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff}
.note{font-size:.9rem;color:var(--muted)}
.review li{margin-bottom:4px}

/* admin */
.tbl{overflow-x:auto;margin-top:16px}
.tbl table{border-collapse:collapse;width:100%;min-width:640px;font-size:.9rem}
.tbl th{text-align:left;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:8px 10px;border-bottom:2px solid var(--line)}
.tbl td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.empty{padding:28px;text-align:center;color:var(--muted)}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(0,0,0,.86);display:grid;place-items:center;z-index:50;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));cursor:zoom-out}
.lb img{max-width:100%;max-height:100%;border-radius:6px;background:#fff}
footer{margin-top:56px;padding-top:16px;border-top:1px solid var(--line);font-size:.82rem;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media (max-width:560px){.step{grid-template-columns:minmax(0,1fr)}.sn{width:34px;height:34px;font-size:1.2rem}.big{font-size:3.5rem}}