:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(9, 18, 33, 0.94);
  --panel-soft: rgba(17, 24, 39, 0.9);
  --line: rgba(148, 163, 184, 0.18);
  --text: #e5eefc;
  --muted: #9fb0c7;
  --accent: #22c55e;
  --accent-soft: rgba(34, 197, 94, 0.14);
  --warn: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(34, 197, 94, 0.1), transparent 30%),
    linear-gradient(180deg, #08101c 0%, #07111f 100%);
  color: var(--text);
}

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

button {
  border: 1px solid rgba(34, 197, 94, 0.2);
  background: linear-gradient(180deg, rgba(34, 197, 94, 0.18), rgba(34, 197, 94, 0.1));
  color: var(--text);
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
}

button.ghost {
  background: rgba(148, 163, 184, 0.08);
  border-color: rgba(148, 163, 184, 0.18);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(7, 17, 31, 0.75);
  color: var(--text);
  padding: 11px 12px;
}

textarea {
  resize: vertical;
  min-height: 96px;
}

.page-shell {
  min-height: 100vh;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(248px, 272px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.side-panel,
.page-header,
.nav-panel,
.session-panel,
.topbar,
.table-card,
.detail-card,
.metric,
.banner,
.sheet-panel,
.login-empty-state {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.side-panel {
  display: grid;
  gap: 16px;
  position: sticky;
  top: 24px;
}

.main-panel {
  min-width: 0;
  display: grid;
  gap: 16px;
}

.page-header,
.nav-panel,
.topbar,
.table-card,
.detail-card,
.banner,
.session-details > summary,
.session-details-body,
.login-empty-state {
  padding: 18px 20px;
}

.page-header {
  padding-bottom: 20px;
}

.brand h1,
.topbar h2,
.detail-card h3,
.sheet-header h3 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  color: #8ef0b0;
}

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

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

.tab {
  width: 100%;
  text-align: left;
}

.tab.is-active {
  background: var(--accent-soft);
  border-color: rgba(34, 197, 94, 0.36);
}

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

.session-panel {
  padding: 0;
}

.session-details {
  padding: 0;
}

.session-details > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

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

.session-details-body {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.session-grid,
.login-inline-form,
.inline-form,
.grid-form,
.detail-grid {
  display: grid;
  gap: 12px;
}

.session-grid,
.login-inline-form,
.inline-form {
  grid-template-columns: 1fr;
}

.field {
  display: grid;
  gap: 8px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.checkbox-field input {
  width: auto;
}

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

.form-error {
  color: #fecaca;
  margin: 0;
}

.actions,
.chip-list,
.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.banner.success {
  border-color: rgba(34, 197, 94, 0.35);
}

.banner.error {
  border-color: rgba(239, 68, 68, 0.35);
}

.app-root {
  display: grid;
  gap: 16px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.metric {
  padding: 18px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 10px;
}

.metric strong {
  font-size: 28px;
}

.inline-form {
  grid-template-columns: minmax(220px, 1fr) auto auto;
  margin-bottom: 16px;
}

.grid-form {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: 16px;
}

.detail-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.18);
  font-size: 12px;
}

.is-good {
  border-color: rgba(34, 197, 94, 0.35);
  color: #b7f7ca;
}

.is-warn {
  border-color: rgba(245, 158, 11, 0.35);
  color: #fde68a;
}

.is-bad {
  border-color: rgba(239, 68, 68, 0.35);
  color: #fecaca;
}

.empty-state {
  color: var(--muted);
  padding: 18px 0 4px;
}

.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.62);
  display: flex;
  justify-content: flex-end;
  z-index: 30;
}

.sheet-backdrop[hidden] {
  display: none !important;
}

.sheet-panel {
  width: min(560px, 100%);
  height: 100%;
  border-radius: 0;
  border-top-left-radius: 20px;
  border-bottom-left-radius: 20px;
  padding: 20px;
  overflow: auto;
}

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

.sheet-content,
.list {
  display: grid;
  gap: 16px;
}

.list-item {
  padding: 10px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.login-empty-state {
  max-width: 560px;
}

details + details,
.detail-card + .detail-card,
.table-card + .detail-card,
.table-card + .table-card {
  margin-top: 16px;
}

@media (max-width: 1040px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
  }

  .tab-list {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 16px;
  }

  .page-header,
  .nav-panel,
  .topbar,
  .table-card,
  .detail-card,
  .banner,
  .session-details > summary,
  .session-details-body,
  .login-empty-state {
    padding: 16px;
  }

  .topbar,
  .inline-form {
    grid-template-columns: 1fr;
    display: grid;
  }

  .sheet-panel {
    width: 100%;
    border-radius: 0;
  }
}