:root {
  --color-brand-50: #EAF7FF;
  --color-brand-600: #0087D6;
  --color-brand-700: #006EAD;
  --color-bg: #F7F9FB;
  --color-surface: #FFFFFF;
  --color-surface-subtle: #EEF2F5;
  --color-border: #DCE3E8;
  --color-text: #172027;
  --color-text-secondary: #616161;
  --color-text-muted: #7B8791;
  --color-success: #16A36A;
  --color-warning: #E5A000;
  --color-danger: #E04444;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 1px 2px rgb(13 20 25 / 6%), 0 4px 12px rgb(13 20 25 / 4%);
  --focus-ring: 0 0 0 3px rgb(0 162 255 / 28%);
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
button, input, select { font: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.shell { min-height: 100vh; padding: 24px; }
.topbar, .card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; margin-bottom: 24px; }
.brand { display: grid; gap: 2px; }.eyebrow { color: var(--color-brand-700); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 0; font-size: 24px; line-height: 32px; } h2 { margin: 0; font-size: 16px; line-height: 24px; }
.connection { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 8px 12px; font-size: 12px; font-weight: 700; background: var(--color-surface-subtle); color: var(--color-text-secondary); }
.connection::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-text-muted); }.connection.online::before { background: var(--color-success); }.connection.offline::before { background: var(--color-warning); }
.grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); }.card { padding: 20px; }.card p { color: var(--color-text-secondary); margin: 4px 0 16px; }
.form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }.field { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }.field.full { grid-column: 1 / -1; }
input, select { min-height: 40px; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 8px 10px; color: var(--color-text); background: var(--color-surface); }
select:disabled { color: var(--color-text-muted); background: var(--color-surface-subtle); cursor: not-allowed; }
.field small { color: var(--color-text-secondary); font-size: 12px; font-weight: 400; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }.button { min-height: 40px; border-radius: var(--radius-md); padding: 0 16px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); font-weight: 700; cursor: pointer; }.button.primary { background: var(--color-brand-600); border-color: var(--color-brand-600); color: #fff; }.button.primary:hover { background: var(--color-brand-700); }.button.danger { border-color: var(--color-danger); color: var(--color-danger); }
.summary { display: grid; gap: 12px; }.metric { padding: 12px; border-radius: var(--radius-md); background: var(--color-surface-subtle); }.metric strong { display: block; font-size: 28px; line-height: 32px; font-variant-numeric: tabular-nums; }.metric span { color: var(--color-text-secondary); font-size: 12px; }
.event-list { margin: 16px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--color-border); }.event-list li { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--color-border); font-size: 14px; }.tag { border-radius: 999px; padding: 3px 8px; font-size: 12px; font-weight: 700; background: var(--color-surface-subtle); }.tag.pending { color: var(--color-brand-700); background: var(--color-brand-50); }.tag.conflict { color: #9A6700; background: #FFF7DB; }.tag.rejected { color: #A62525; background: #FDECEC; }
.notice { margin-top: 16px; border-left: 4px solid var(--color-brand-600); background: var(--color-brand-50); border-radius: var(--radius-sm); padding: 12px; color: var(--color-text-secondary); }.notice.error { border-left-color: var(--color-danger); background: #FDECEC; }
.login { width: min(100%, 440px); margin: 8vh auto; }.hidden { display: none !important; }
@media (max-width: 760px) { .shell { padding: 12px; }.topbar { align-items: flex-start; flex-direction: column; }.grid { grid-template-columns: 1fr; }.form { grid-template-columns: 1fr; }.field.full { grid-column: auto; } }