:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --brand: #0f766e;
  --brand-soft: #ccfbf1;
  --ok: #15803d;
  --warn: #b45309;
  --err: #b91c1c;
  --line: #e2e8f0;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap { width: min(720px, 100%); margin: 0 auto; padding: 0 16px; }

.hero {
  background: linear-gradient(160deg, #0f766e, #115e59 60%, #134e4a);
  color: #f0fdfa;
  padding: 28px 0 34px;
}
.hero .eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: 11px; opacity: .8; margin: 0 0 6px; }
.hero h1 { margin: 0 0 8px; font-size: 26px; line-height: 1.2; }
.hero .sub { margin: 0; font-size: 14px; opacity: .92; line-height: 1.45; }

main { padding: 16px 16px 40px; display: grid; gap: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.card h2 { margin: 0 0 14px; font-size: 16px; }

.kv { display: grid; grid-template-columns: 130px 1fr; gap: 8px 12px; margin: 0 0 12px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--brand-soft);
  color: #134e4a;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
}

label { display: block; margin-bottom: 14px; font-size: 13px; font-weight: 600; color: #1e293b; }
label .opt { font-weight: 400; color: var(--muted); }
label .req { color: var(--err); }

input {
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}
input:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
input[type="file"] { padding: 9px; background: #f8fafc; }

small { display: block; margin-top: 5px; color: var(--muted); font-weight: 400; font-size: 12px; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }

#preview-wrap { margin: 0 0 14px; }
#preview { width: 100%; max-height: 320px; object-fit: contain; border-radius: 10px; border: 1px solid var(--line); background: #f8fafc; }

button {
  width: 100%;
  padding: 14px;
  border: 0;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
}
button:disabled { background: #94a3b8; cursor: not-allowed; }
button.secondary { background: #0f172a; }

.tiny { font-size: 12px; color: var(--muted); line-height: 1.5; margin: 10px 0 0; }

.result-ok { border-left: 4px solid var(--ok); }
.result-warn { border-left: 4px solid var(--warn); }
.result-err { border-left: 4px solid var(--err); }
.result-title { font-weight: 700; font-size: 15px; margin: 0 0 8px; }
.result-body { font-size: 14px; line-height: 1.55; margin: 0; }
.result-body strong { font-variant-numeric: tabular-nums; }

.foot { text-align: center; color: var(--muted); font-size: 12px; padding-top: 8px; }

/* admin */
.admin-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { background: #f8fafc; border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.stat b { display: block; font-size: 20px; margin-top: 4px; }
.stat span { color: var(--muted); font-size: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tbody tr:hover { background: #f8fafc; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.b-ok { background: #dcfce7; color: #166534; }
.b-warn { background: #fef3c7; color: #92400e; }
.b-err { background: #fee2e2; color: #991b1b; }
.b-mut { background: #e2e8f0; color: #334155; }

.btn-sm { width: auto; padding: 6px 10px; font-size: 12px; border-radius: 8px; }
textarea {
  width: 100%; min-height: 260px; padding: 12px; border: 1px solid var(--line);
  border-radius: 10px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; line-height: 1.5;
}
pre.preview {
  white-space: pre-wrap; background: #0f172a; color: #e2e8f0; padding: 14px; border-radius: 10px;
  font-size: 12.5px; line-height: 1.55; max-height: 420px; overflow: auto;
}
.hint { font-size: 12px; color: var(--muted); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }