:root{--navy:#2c3e8f;--ink:#1a1a1a;--muted:#5b6070;--line:#dfe3ec;--bg:#f6f7fa;--card:#fff;--ok:#1d7a3a;--bad:#b3261e;--warn:#8a5a00;--okbg:#e9f6ed;--badbg:#fbeae8;--warnbg:#fff4dc}
*{box-sizing:border-box}
body{margin:0;font-family:"Source Sans 3",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.45}
.wrap{max-width:900px;margin:0 auto;padding:0 16px}
.top{background:var(--navy);color:#fff;padding:22px 0 18px}
.brand{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;opacity:.85}
h1{margin:.1em 0 .2em;font-size:1.9rem;font-weight:700}
.sub{margin:0;opacity:.95}
h2{font-size:1.15rem;color:var(--navy);margin:0 0 .5em}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px 20px;margin:18px 0}
.muted{color:var(--muted);margin:.2em 0 .8em}
table.assump{width:100%;border-collapse:collapse;font-size:.97rem}
table.assump td{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
table.assump td:first-child{font-weight:600;width:34%}
.field{display:grid;grid-template-columns:1fr 200px;gap:6px 14px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.field:last-child{border-bottom:0}
.field label{font-weight:600}
.field.is-correct{grid-template-columns:1fr 200px 90px;padding:6px 0}
.field.is-correct input{background:var(--okbg);border-color:#b9dfc4;color:var(--ok);font-weight:600}
.field.is-correct::after{content:"✓ Correct";color:var(--ok);font-weight:600;font-size:.95rem}
@media (max-width:640px){.field.is-correct{grid-template-columns:1fr 1fr}.field.is-correct::after{grid-column:2;text-align:right}}
.field .unit{color:var(--muted);font-weight:400;font-size:.9rem}
.field input{font:inherit;padding:7px 9px;border:1px solid #b8bfd0;border-radius:6px;width:100%;text-align:right}
.field input:focus{outline:2px solid var(--navy);outline-offset:1px}
.fb{grid-column:1 / -1;font-size:.95rem;padding:8px 10px;border-radius:6px;display:none}
.fb.show{display:block}
.fb.correct{background:var(--okbg);color:var(--ok)}
.fb.incorrect{background:var(--badbg);color:var(--bad)}
.fb.missing,.fb.invalid{background:var(--warnbg);color:var(--warn)}
.fb p{margin:.15em 0}
.fb .cells{display:grid;grid-template-columns:1fr 2fr 1.4fr;gap:8px}
.fb .cell{background:rgba(255,255,255,.7);border-radius:6px;padding:8px 10px;min-height:56px}
.fb .cell-t{font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.fb .cell.locked{opacity:.7}
.fb .cell p{margin:0;color:var(--ink)}
.fb .cell p.muted{color:var(--muted)}
.fb button{margin-top:2px}
@media (max-width:640px){.fb .cells{grid-template-columns:1fr}}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
button{font:inherit;padding:8px 14px;border-radius:6px;border:1px solid var(--navy);background:#fff;color:var(--navy);cursor:pointer}
button.primary{background:var(--navy);color:#fff}
button.quiet{border-color:var(--line);color:var(--muted)}
button.small{padding:3px 9px;font-size:.85rem}
.status{padding:10px 14px;border-radius:8px;margin-top:16px;background:var(--okbg);color:var(--ok);font-weight:600}
.status.err{background:var(--badbg);color:var(--bad)}
.foot{color:var(--muted);font-size:.85rem;padding:14px 16px 30px}
table.worked{width:100%;border-collapse:collapse;font-size:.92rem;margin:.5em 0 1em}
table.worked th,table.worked td{padding:4px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
table.worked th:first-child,table.worked td:first-child{text-align:left}
table.worked tr.tot td{font-weight:600}
@media (max-width:640px){.field{grid-template-columns:1fr}.field input{text-align:left}}
@media print{.top,.actions,#worked,.foot,form{display:none}.card{border:0;padding:0}body{background:#fff}}