:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --line: #d9dee8;
  --text: #1d2636;
  --muted: #687386;
  --primary: #1f6feb;
  --primary-dark: #185abc;
  --danger: #c2410c;
  --ok: #0f766e;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

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

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(440px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

.muted {
  color: var(--muted);
  margin: 6px 0 0;
}

.stack {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: #fff;
  padding: 10px 12px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
}

button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 14px;
  cursor: pointer;
}

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

.primary:hover {
  background: var(--primary-dark);
}

.ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.form-message {
  min-height: 22px;
  margin: 0;
  color: var(--danger);
}

.form-message.ok {
  color: var(--ok);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
}

.sidebar {
  background: #111827;
  color: #fff;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: grid;
  gap: 4px;
  padding: 8px 10px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.brand span {
  color: #b8c2d6;
  font-size: 13px;
}

nav {
  display: grid;
  gap: 4px;
  margin-top: 18px;
}

nav a {
  color: #d9e1ef;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 10px 12px;
}

nav a.active,
nav a:hover {
  background: #22304a;
  color: #fff;
}

.content {
  padding: 24px;
  max-width: 1220px;
  width: 100%;
}

.topbar,
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.section {
  margin-top: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  display: grid;
  gap: 6px;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  overflow-wrap: anywhere;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.form-grid.compact {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}

.full {
  grid-column: 1 / -1;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

td {
  overflow-wrap: anywhere;
}

.steps {
  margin: 16px 0 0;
  padding-left: 24px;
}

.steps li {
  margin: 8px 0;
}

code {
  background: #eef2f7;
  border-radius: 4px;
  padding: 2px 5px;
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content {
    padding: 16px;
  }

  .topbar,
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .metric-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
}