:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --ink: #142033;
  --muted: #607086;
  --line: #d8e1eb;
  --line-strong: #c5d0de;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --ok: #047857;
  --warn: #b45309;
  --danger: #b91c1c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
}

button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  background: #0f172a;
  color: #f8fafc;
  min-height: 72px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border: 2px solid #f1f5f9;
  border-radius: 50%;
  position: relative;
}

.brand-mark::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f1f5f9;
  position: absolute;
  left: 13px;
  top: 13px;
}

.brand-title { font-weight: 800; }
.brand-subtitle { color: #9fb0c6; font-size: 12px; margin-top: 2px; }

.page {
  width: min(1120px, calc(100vw - 32px));
  margin: 28px auto 44px;
  display: grid;
  gap: 18px;
}

.hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

h1 {
  margin: 0;
  font-size: 26px;
  line-height: 1.2;
}

.muted { color: var(--muted); }
.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.step {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
}

.step.active {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: #eff6ff;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.panel-head {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.panel-title {
  margin: 0;
  font-size: 17px;
}

.panel-body {
  padding: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: 12px;
  font-weight: 800;
  color: #334155;
}

.input,
.select,
.textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  min-height: 40px;
  padding: 9px 11px;
  outline: none;
}

.textarea {
  min-height: 110px;
  resize: vertical;
}

.input[readonly] {
  background: #f8fafc;
  color: #475569;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.btn {
  min-height: 38px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  padding: 8px 12px;
  font-weight: 800;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn.primary:hover { background: var(--accent-strong); }

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 800;
  color: #475569;
  background: #f8fafc;
}

.badge.ok { color: var(--ok); background: #ecfdf5; border-color: #bbf7d0; }
.badge.warn { color: var(--warn); background: #fffbeb; border-color: #fde68a; }
.badge.danger { color: var(--danger); background: #fef2f2; border-color: #fecaca; }
.badge.info { color: #0369a1; background: #eff6ff; border-color: #bfdbfe; }

.kv {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.kv dt { color: var(--muted); font-size: 12px; }
.kv dd { margin: 0; overflow-wrap: anywhere; }

.notice {
  border: 1px solid #bfdbfe;
  background: #eff6ff;
  color: #1e3a8a;
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
}

.notice.error {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}

.notice.success {
  border-color: #bbf7d0;
  background: #ecfdf5;
  color: #065f46;
}

.hidden { display: none !important; }

@media (max-width: 820px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .steps {
    grid-template-columns: 1fr;
  }
}