:root {
  color-scheme: light;
  --bg: #f8fafc;
  --panel: #ffffff;
  --panel-soft: #f1f5f9;
  --text: #0f172a;
  --muted: #64748b;
  --line: #dbe2ea;
  --accent: #0f172a;
  --blue: #2563eb;
  --green: #15803d;
  --amber: #b45309;
  --red: #b91c1c;
}

* {
  box-sizing: border-box;
}

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

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

button {
  border: 0;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.brand {
  min-width: 0;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.1;
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

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

.chip,
.tab,
.icon-btn,
.primary,
.secondary {
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
}

.chip,
.secondary,
.icon-btn {
  background: var(--panel);
  color: var(--accent);
  border: 1px solid var(--line);
}

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

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.icon-btn svg {
  width: 16px;
  height: 16px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0;
}

.tab {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--muted);
  text-align: left;
  padding: 12px;
}

.tab strong {
  display: block;
  color: var(--text);
  font-size: 15px;
}

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

.tab.is-active {
  background: var(--accent);
  color: #fff;
}

.tab.is-active strong,
.tab.is-active small {
  color: #fff;
}

.layout {
  display: grid;
  gap: 12px;
}

.dashboard,
.panel,
.card,
.auth {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.dashboard {
  padding: 14px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  background: var(--panel-soft);
  border-radius: 14px;
  padding: 10px 12px;
}

.metric .label {
  color: var(--muted);
  font-size: 12px;
}

.metric .value {
  margin-top: 4px;
  font-size: 20px;
  font-weight: 700;
}

.focus {
  margin-top: 12px;
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  padding: 12px;
}

.focus .title {
  font-size: 13px;
  color: var(--blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.focus .body {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text);
}

.panel {
  padding: 14px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.panel-head h2 {
  margin: 0;
  font-size: 18px;
}

.panel-head .sub {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.forms {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

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

.field .label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

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

.field textarea {
  resize: vertical;
  min-height: 72px;
}

.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-12 { grid-column: span 12; }

.section-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.list {
  display: grid;
  gap: 10px;
}

.card {
  padding: 12px;
}

.card summary {
  list-style: none;
  cursor: pointer;
}

.card summary::-webkit-details-marker {
  display: none;
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
}

.card-meta {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  background: var(--panel-soft);
  color: var(--muted);
}

.tag.good { background: #dcfce7; color: var(--green); }
.tag.warn { background: #fef3c7; color: var(--amber); }
.tag.bad { background: #fee2e2; color: var(--red); }

.details {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.message {
  margin-top: 10px;
  border-radius: 14px;
  padding: 10px 12px;
  background: #ecfdf5;
  color: #166534;
  border: 1px solid #bbf7d0;
  font-size: 14px;
}

.auth {
  max-width: 420px;
  margin: 10vh auto 0;
  padding: 18px;
}

.auth h1 {
  margin: 0;
  font-size: 24px;
}

.auth p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.auth form {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

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

@media (max-width: 900px) {
  .dashboard-grid,
  .forms,
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }

  .span-2,
  .span-3,
  .span-4,
  .span-5,
  .span-6,
  .span-12 {
    grid-column: span 2;
  }
}

@media (max-width: 680px) {
  .shell {
    padding: 12px;
  }

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

  .tabs,
  .dashboard-grid,
  .forms,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .span-2,
  .span-3,
  .span-4,
  .span-5,
  .span-6,
  .span-12 {
    grid-column: span 1;
  }
}