:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f9fafb;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --strong-line: #d1d5db;
  --primary: #111827;
  --danger: #991b1b;
  --warning: #92400e;
  --ok: #166534;
  --blue: #1d4ed8;
  --radius: 14px;
  --shadow: 0 10px 25px rgba(17, 24, 39, .07);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

a { color: inherit; }

.hidden { display: none !important; }

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #111827;
  color: #fff;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 6px 16px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.brand-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 13px;
  color: rgba(255,255,255,.65);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav button {
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: rgba(255,255,255,.78);
  text-align: left;
  padding: 11px 12px;
  cursor: pointer;
}

.nav button:hover, .nav button.active {
  background: rgba(255,255,255,.10);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 14px;
  color: rgba(255,255,255,.65);
  font-size: 12px;
  line-height: 1.35;
}

.main {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.page-title h1 {
  margin: 0;
  font-size: 25px;
  letter-spacing: -0.03em;
}

.page-title p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.user-box {
  display: flex;
  gap: 10px;
  align-items: center;
  white-space: nowrap;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.card-header h2 {
  margin: 0;
  font-size: 16px;
}

.card-body {
  padding: 20px;
}

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

.login-card {
  width: min(460px, 100%);
  padding: 28px;
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 25px;
  letter-spacing: -0.03em;
}

.login-card p {
  color: var(--muted);
  margin: 0 0 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field label {
  font-weight: 650;
  font-size: 13px;
  color: #374151;
}

.field small {
  color: var(--muted);
  font-size: 12px;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--strong-line);
  border-radius: 10px;
  background: #fff;
  padding: 10px 11px;
  color: var(--text);
  outline: none;
}

textarea {
  min-height: 94px;
  resize: vertical;
}

input:focus, select:focus, textarea:focus {
  border-color: #111827;
  box-shadow: 0 0 0 3px rgba(17,24,39,.10);
}

input[readonly], textarea[readonly] {
  background: #f3f4f6;
  color: #4b5563;
}

.btn {
  border: 1px solid #111827;
  background: #111827;
  color: #fff;
  border-radius: 10px;
  padding: 10px 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  text-decoration: none;
  min-height: 40px;
}

.btn:hover { opacity: .92; }

.btn.secondary {
  background: #fff;
  color: #111827;
  border-color: var(--strong-line);
}

.btn.danger {
  background: var(--danger);
  border-color: var(--danger);
}

.btn.warning {
  background: var(--warning);
  border-color: var(--warning);
}

.btn.ghost {
  background: transparent;
  color: #111827;
  border-color: transparent;
}

.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric {
  padding: 18px;
}

.metric .label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.metric .value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.filters {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto;
  gap: 10px;
  align-items: end;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: #374151;
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: var(--panel-2);
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover {
  background: #f9fafb;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 650;
  background: #f3f4f6;
  color: #374151;
  border: 1px solid #e5e7eb;
  white-space: nowrap;
}

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

.muted {
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr);
  gap: 18px;
}

.kv {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 8px 12px;
  font-size: 14px;
}

.kv .key {
  color: var(--muted);
}

.kv .value {
  min-width: 0;
  overflow-wrap: anywhere;
}

.notice {
  border: 1px solid #fde68a;
  background: #fffbeb;
  color: #78350f;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 14px;
  line-height: 1.4;
}

.notice.danger {
  border-color: #fecaca;
  background: #fef2f2;
  color: #7f1d1d;
}

.notice.ok {
  border-color: #bbf7d0;
  background: #ecfdf5;
  color: #14532d;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(17,24,39,.16);
  border-top-color: #111827;
  border-radius: 999px;
  animation: spin .8s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 36px 20px;
}

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  gap: 12px;
  border-top: 1px solid var(--line);
}

.toast-wrap {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 10px;
  z-index: 30;
}

.toast {
  max-width: 420px;
  border-radius: 12px;
  background: #111827;
  color: #fff;
  padding: 12px 14px;
  box-shadow: var(--shadow);
  font-size: 14px;
}

.toast.error { background: #991b1b; }
.toast.ok { background: #166534; }

.split {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.raw-box {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #f9fafb;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  color: #374151;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: sticky;
    top: 0;
    z-index: 20;
    flex-direction: row;
    align-items: center;
    overflow: auto;
    padding: 12px;
  }
  .brand {
    border-bottom: 0;
    border-right: 1px solid rgba(255,255,255,.12);
    padding: 4px 14px 4px 4px;
  }
  .nav {
    flex-direction: row;
  }
  .nav button {
    white-space: nowrap;
  }
  .sidebar-footer { display: none; }
  .main { padding: 18px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filters { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
  }
  .metrics { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .col-12, .col-8, .col-6, .col-4, .col-3 { grid-column: span 1; }
  .kv { grid-template-columns: 1fr; }
  th:nth-child(4), td:nth-child(4),
  th:nth-child(5), td:nth-child(5) {
    display: none;
  }
}