:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2328;
  --muted: #656d76;
  --border: #d8dee4;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --ok: #15803d;
  --error: #b91c1c;
  --busy: #92400e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

h1, h2 { margin: 0 0 16px; font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

input, select, textarea {
  font: inherit;
  color: var(--text);
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

button {
  font: inherit;
  font-weight: 600;
  padding: 9px 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button:hover:not(:disabled) { background: var(--accent-hover); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.secondary { background: #fff; color: var(--accent); }
button.secondary:hover { background: #eff4ff; }
button.link { background: none; border: none; color: var(--accent); padding: 4px 8px; }
button.link:hover { background: none; text-decoration: underline; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.login { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 14px; }
.login button { margin-top: 6px; }

.alert {
  margin: 0;
  padding: 10px 12px;
  border-radius: 6px;
  background: #fef2f2;
  color: var(--error);
  font-size: 14px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.brand { font-weight: 700; }

.container { max-width: 860px; margin: 24px auto; padding: 0 16px; }

.grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
}

.hint { margin: -6px 0 16px; font-size: 13px; color: var(--muted); }

.status { margin: 16px 0 0; font-weight: 600; }
.status.ok { color: var(--ok); }
.status.error { color: var(--error); }
.status.busy { color: var(--busy); }

.progress {
  margin: 10px 0 0;
  padding-left: 0;
  list-style: none;
  font: 13px/1.7 ui-monospace, Consolas, monospace;
}

.progress .ok { color: var(--ok); }
.progress .error { color: var(--error); }

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.card-head h2 { margin: 0; }
.actions { display: flex; gap: 8px; }

textarea {
  min-height: 360px;
  resize: vertical;
  font: 14px/1.5 ui-monospace, Consolas, "Courier New", monospace;
  white-space: pre;
  overflow-x: auto;
}