:root{
  --ink:#15232b; --muted:#6a7a85; --line:#dfe6ea; --bg:#f2f5f7;
  --brand:#0b4f6c; --brand-2:#0f6e93; --ok:#1c7a4a; --warn:#9a4a17; --danger:#b3261e;
  --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg); color:var(--ink); font-size:17px; line-height:1.5;
  padding-bottom:96px;
}
.wrap{max-width:720px;margin:0 auto;padding:16px}
.wrap.wide{max-width:1200px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:16px}
.card.center{text-align:center}
h1{font-size:22px;margin:4px 0 6px}
h2{font-size:20px;margin:0 0 12px}
h3.sec-sub{font-size:16px;color:var(--brand);margin:22px 0 8px}
p{margin:0 0 12px}
.lead{color:var(--muted)}
.muted{color:var(--muted)}
.brand{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px}
.brand-sub{font-size:13px;color:var(--muted);letter-spacing:.02em}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:20;background:var(--brand);color:#fff}
.topbar-inner{max-width:720px;margin:0 auto;padding:10px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.topbar-title{font-weight:600}
.topbar-user{font-size:12px;opacity:.85;text-align:right}
.progress{height:4px;background:rgba(255,255,255,.25)}
.progress-bar{height:100%;width:0;background:#7fd1ef;transition:width .25s ease}

/* ---------- form fields ---------- */
.field{display:block;margin-bottom:16px}
.field>span{display:block;font-weight:600;margin-bottom:6px;font-size:15px}
.input,input[type=text],input[type=number],input[type=password],textarea{
  width:100%;padding:13px 14px;font-size:17px;font-family:inherit;color:var(--ink);
  border:1px solid var(--line);border-radius:10px;background:#fff
}
textarea{resize:vertical}
select.input{
  appearance:none;-webkit-appearance:none;padding-right:42px;background-color:#fff;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%236a7a85' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center
}
select.input:disabled{background-color:#f4f6f7;color:var(--muted)}
.input:focus,input:focus,textarea:focus{outline:2px solid var(--brand-2);outline-offset:1px;border-color:var(--brand-2)}

.q{padding:14px 0;border-bottom:1px solid var(--line)}
.q:last-of-type{border-bottom:none}
.q-label{font-weight:600;margin-bottom:10px}
.qnum{color:var(--muted);margin-right:4px}
.q.invalid .q-label{color:var(--danger)}
.err{color:var(--danger);font-size:14px;margin-top:6px;display:none}
.q.invalid .err{display:block}

.opts{display:flex;flex-wrap:wrap;gap:8px}
.opts-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.opt{flex:1 1 auto;min-width:120px}
.opt input,.sc input,.check input[type=checkbox]{position:absolute;opacity:0;pointer-events:none}
.opt span{
  display:block;text-align:center;padding:12px 10px;border:1px solid var(--line);
  border-radius:10px;background:#fff;font-size:15px;cursor:pointer
}
.opt input:checked+span{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- likert ---------- */
.scale{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.sc span{
  display:block;text-align:center;padding:14px 0;border:1px solid var(--line);
  border-radius:10px;background:#fff;font-size:16px;font-weight:600;cursor:pointer
}
.sc input:checked+span{background:var(--brand-2);border-color:var(--brand-2);color:#fff}
.scale-ends{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:5px}
.scale-note{background:#eef5f8;border-radius:10px;padding:10px 12px;font-size:15px}

.check{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.check span{flex:1}
.check::before{
  content:"";width:24px;height:24px;border:2px solid var(--line);border-radius:6px;flex:none
}
.check:has(input:checked)::before{background:var(--brand);border-color:var(--brand)}
.check:has(input:checked){border-color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;padding:14px 20px;border-radius:12px;border:1px solid transparent;
  font-size:16px;font-weight:600;font-family:inherit;text-decoration:none;text-align:center;cursor:pointer
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:disabled{opacity:.5}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-block{display:block;width:100%;margin-top:10px}
.link-danger{background:none;border:none;color:var(--danger);font-size:14px;cursor:pointer;padding:0;font-family:inherit}

.navbar{
  position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:12px;z-index:30
}
.navbar .btn{flex:1 1 0}
.step-count{font-size:13px;color:var(--muted);white-space:nowrap}

/* ---------- notices ---------- */
.notice{padding:12px 14px;border-radius:10px;margin-bottom:14px;font-size:15px;border:1px solid}
.notice.ok{background:#eaf6ef;border-color:#bfe2cd;color:var(--ok)}
.notice.warn{background:#fdf0e8;border-color:#f3d3bd;color:var(--warn)}
.notice.info{background:#eef5f8;border-color:#cfe2eb;color:var(--brand)}
.quote{border-left:4px solid var(--brand-2);background:#f7fafb;padding:12px 14px;border-radius:0 10px 10px 0;margin-bottom:14px;font-size:15px}
.tick{width:60px;height:60px;line-height:60px;border-radius:50%;background:#eaf6ef;color:var(--ok);font-size:30px;margin:0 auto 12px}
.foot-links{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between;gap:10px}
.foot-links a{color:var(--brand);text-decoration:none}
.pending{color:var(--warn);font-size:13px}
.hidden{display:none!important}

/* ---------- review ---------- */
.review{font-size:15px}
.review .rv-sec{font-weight:700;color:var(--brand);margin:14px 0 6px}
.review .rv-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed var(--line)}
.review .rv-row b{font-weight:600}
.review .rv-missing{color:var(--danger)}

/* ---------- admin tables ---------- */
.admin-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:16px 0}
.stat{background:#f7fafb;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.stat-n{display:block;font-size:26px;font-weight:700;color:var(--brand)}
.stat-l{font-size:13px;color:var(--muted)}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:14px;background:#fff}
th,td{padding:9px 11px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;vertical-align:top}
th{background:#f7fafb;font-size:13px;color:var(--muted);position:sticky;top:0}

@media(max-width:420px){
  body{font-size:16px}
  .sc span{padding:12px 0;font-size:15px}
  .opts-grid{grid-template-columns:1fr}
}