:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eef0f4;
  --border: #d9dde5;
  --text: #171a21;
  --muted: #5d6575;
  --accent: #0f9f6e;
  --accent-ink: #ffffff;
  --mark-bg: #d6f5e8;
  --mark-ink: #08623f;
  --danger: #c2413a;
  --warn: #b7791f;
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1116;
    --surface: #171a21;
    --surface-2: #1f232c;
    --border: #2c313c;
    --text: #e6e8ee;
    --muted: #949bab;
    --accent: #36d399;
    --accent-ink: #0b2a1e;
    --mark-bg: #123a2b;
    --mark-ink: #7ef0be;
    --danger: #f2716a;
    --warn: #f0b45a;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
code, .mono { font-family: var(--mono); font-size: .92em; }

.top {
  display: flex; flex-wrap: wrap; gap: 12px 24px;
  align-items: center; justify-content: space-between;
  padding: 20px clamp(16px, 4vw, 40px) 8px;
}
.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M7 13c3-3 6-3 9 0 3-3 6-3 9 0-1 6-5 8-9 5-4 3-8 1-9-5z' fill='%2336d399'/%3E%3C/svg%3E") center/26px no-repeat;
  border: 1px solid var(--border);
}
h1 { font-size: 22px; margin: 0; letter-spacing: -.01em; }
.sub { margin: 0; color: var(--muted); font-size: 14px; }

.badges { list-style: none; display: flex; gap: 8px; margin: 0; padding: 0; flex-wrap: wrap; }
.badge {
  font-size: 12.5px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
}
.badge::before { content: "● "; }
.badge.ok::before { color: var(--accent); }
.badge.pending::before { color: var(--warn); }
.badge.bad { border-color: var(--danger); color: var(--danger); }

main { flex: 1; padding: 8px clamp(16px, 4vw, 40px) 24px; width: 100%; max-width: 1600px; margin: 0 auto; }

.tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs [role=tab] {
  background: none; border: 0; border-bottom: 2px solid transparent;
  padding: 10px 14px; color: var(--muted); font: inherit; font-weight: 600; cursor: pointer;
}
.tabs [role=tab][aria-selected=true] { color: var(--text); border-bottom-color: var(--accent); }
.tabs [role=tab]:hover { color: var(--text); }
.count {
  display: inline-block; min-width: 1.6em; padding: 0 6px; margin-left: 4px;
  border-radius: 999px; background: var(--surface-2); font-size: 12px; text-align: center;
}
.tabs .danger { margin-left: auto; align-self: center; }

.io { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 860px) { .io { grid-template-columns: 1fr; } }
.pane { display: flex; flex-direction: column; min-width: 0; }
.pane-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
  font-weight: 600; font-size: 13.5px; margin-bottom: 6px;
}
.hint { color: var(--muted); font-weight: 400; font-size: 12.5px; }

textarea, .out, input[type=text] {
  width: 100%;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  font: 13px/1.55 var(--mono);
}
textarea, .out { padding: 12px; }
#in, #rin, .out { height: min(58vh, 560px); min-height: 240px; }
textarea { resize: vertical; }
textarea:focus, input:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.out { margin: 0; overflow: auto; white-space: pre-wrap; word-break: break-word; background: var(--surface-2); }
.out:empty::before { content: "Tu pojawi się wynik."; color: var(--muted); }
.out mark { background: var(--mark-bg); color: var(--mark-ink); border-radius: 3px; padding: 0 1px; }

.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
button {
  font: inherit; font-weight: 600; font-size: 14px; cursor: pointer;
  padding: 8px 16px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
button:hover:not(:disabled) { border-color: var(--muted); }
button:disabled { opacity: .45; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:hover { filter: brightness(1.06); }
button.danger { color: var(--danger); padding: 6px 12px; font-size: 13px; }
button.danger:hover { border-color: var(--danger); }

.settings {
  margin-top: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 4px 16px;
}
.settings summary { cursor: pointer; font-weight: 600; padding: 10px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 4px 0 12px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; font-weight: 600; }
.field small, .checks small { font-weight: 400; color: var(--muted); }
.field textarea { font-size: 12.5px; padding: 8px; }
.checks { font-weight: 400; gap: 8px; }
.checks label { display: block; padding-left: 24px; text-indent: -24px; }
.checks label > input[type=checkbox] { margin: 0 6px 0 0; width: 18px; }
.checks label * { text-indent: 0; }
.checks input[type=text] { padding: 6px 8px; font-size: 12.5px; }
.err { color: var(--danger); }

.note { color: var(--muted); font-size: 13px; margin: 10px 0; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
td:not(:first-child) { font-family: var(--mono); word-break: break-all; }
td:first-child { color: var(--muted); white-space: nowrap; }

footer { color: var(--muted); font-size: 12.5px; padding: 16px clamp(16px, 4vw, 40px) 24px; max-width: 1600px; margin: 0 auto; }
.checks input.num { width: 3.5em; padding: 2px 4px; font: inherit; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); }