:root {
  color-scheme: light;
  --ink: #12233f;
  --muted: #637089;
  --line: #dbe2ec;
  --surface: #ffffff;
  --soft: #f3f6fa;
  --primary: #1957d2;
  --primary-dark: #0d3e9e;
  --accent: #00a3a3;
  --warning: #fff4d6;
  --warning-ink: #6d4d00;
  --shadow: 0 14px 38px rgba(18, 35, 63, 0.09);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Yu Gothic UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(140deg, #eef4ff 0%, #f8fafc 52%, #ecfbfa 100%);
}
button, input { font: inherit; }
button { cursor: pointer; }
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.header-badges { display: flex; flex: 1; flex-wrap: wrap; gap: 8px; }
.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  background: var(--surface);
}
.badge.mock { color: #7a3500; background: #fff0e6; border-color: #ffd1ad; font-weight: 700; }
.badge.tenant { color: var(--primary-dark); background: #edf3ff; }
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 68px); }
.side-nav {
  padding: 22px 14px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}
.side-nav button {
  width: 100%;
  margin-bottom: 6px;
  padding: 11px 13px;
  text-align: left;
  border: 0;
  border-radius: 9px;
  color: var(--muted);
  background: transparent;
}
.side-nav button:hover, .side-nav button.active { color: var(--primary-dark); background: #e9f0ff; font-weight: 700; }
main { width: 100%; max-width: 1280px; margin: 0 auto; padding: 34px; }
h1 { margin: 3px 0 20px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.03em; }
h2 { margin: 0 0 16px; font-size: 19px; }
.eyebrow { margin: 0; color: var(--primary); font-size: 12px; font-weight: 800; letter-spacing: 0.14em; }
.title-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.signin-panel {
  min-height: 68vh;
  display: grid;
  place-items: center;
  padding: 30px;
}
.signin-panel > div {
  max-width: 760px;
  padding: clamp(28px, 6vw, 64px);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.notice {
  padding: 13px 15px;
  border-left: 4px solid #f0a500;
  color: var(--warning-ink);
  background: var(--warning);
}
.primary, .secondary {
  border-radius: 9px;
  padding: 10px 16px;
  font-weight: 700;
}
.primary { border: 1px solid var(--primary); color: white; background: var(--primary); }
.primary:hover { background: var(--primary-dark); }
.secondary { border: 1px solid var(--line); color: var(--ink); background: var(--surface); }
.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 18px; }
.kpi-grid article, .card {
  border: 1px solid rgba(219, 226, 236, 0.9);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}
.kpi-grid article { padding: 20px; }
.kpi-grid span { display: block; color: var(--muted); }
.kpi-grid strong { display: block; margin-top: 8px; font-size: 32px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card { margin-bottom: 18px; padding: 22px; }
dl { display: grid; grid-template-columns: 170px 1fr; gap: 9px 16px; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; font-weight: 600; }
pre {
  max-height: 360px;
  overflow: auto;
  padding: 14px;
  border-radius: 9px;
  color: #d9e7ff;
  background: #10213a;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.form-card { display: grid; gap: 12px; }
input {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #b7c2d2;
  border-radius: 8px;
  background: white;
}
.button-row { display: flex; flex-wrap: wrap; gap: 10px; }
.small { color: var(--muted); font-size: 13px; }
#toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: 420px;
  padding: 13px 16px;
  border-radius: 10px;
  color: white;
  background: #12233f;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  transition: 0.2s ease;
  pointer-events: none;
}
#toast.visible { opacity: 1; transform: translateY(0); }
[hidden] { display: none !important; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .side-nav { display: flex; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .side-nav button { min-width: max-content; }
  main { padding: 22px 16px; }
  .kpi-grid, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .app-header { align-items: flex-start; flex-wrap: wrap; padding: 10px 14px; }
  .header-badges { order: 3; width: 100%; }
  .kpi-grid, .grid-2 { grid-template-columns: 1fr; }
  .title-row { align-items: flex-start; flex-direction: column; }
  dl { grid-template-columns: 1fr; }
}