:root {
  color-scheme: light;
  --bg: #f5f6f8;
  --panel: rgba(255, 255, 255, 0.96);
  --panel-strong: #ffffff;
  --panel-soft: #fafafb;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.12);
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --danger: #dc2626;
  --success: #059669;
  --warning: #d97706;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
  font-family:
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.07), transparent 28%),
    linear-gradient(180deg, #fafafb 0%, #f4f5f7 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
  font-size: 13px;
  line-height: 1.45;
}

.hidden {
  display: none !important;
}

.screen {
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 10vh 24px 24px;
}

.login-shell {
  width: min(420px, 100%);
}

.brand-badge {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #7c8cff, #4f46e5);
  color: white;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.18);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.login-shell .panel {
  margin-top: 18px;
  padding: 18px;
}

.app-shell {
  display: block;
  min-height: 100vh;
}

.content {
  padding: 18px;
  display: grid;
  gap: 18px;
  max-width: 1560px;
  margin: 0 auto;
}

.topbar,
.section-heading,
.toolbar,
.button-row {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
}

.topbar {
  justify-content: flex-end;
}

.topbar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

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

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

.metric-card {
  padding: 14px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, #fbfbfc);
  border: 1px solid var(--border);
}

.metric-card strong {
  display: block;
  font-size: 22px;
  margin-top: 4px;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(420px, 500px) minmax(0, 1fr);
  gap: 12px;
}

.form-panel,
.panel {
  padding: 14px;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
}

.field span {
  font-size: 11px;
  color: var(--muted);
}

.field.compact {
  margin-bottom: 0;
  min-width: 140px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

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

input,
textarea,
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-soft);
  color: var(--text);
  padding: 9px 10px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 84px;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(124, 140, 255, 0.6);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.primary-button,
.ghost-button {
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  padding: 8px 12px;
  cursor: pointer;
  transition: 0.2s ease;
  font-size: 12px;
}

.primary-button {
  background: #e3dacc;
  color: #111111;
  border-color: #d8cfbf;
}

.ghost-button {
  background: #ffffff;
  color: var(--text);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.table-shell {
  overflow: auto;
}

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

th,
td {
  padding: 9px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.05);
  font-size: 11px;
}

.tag.success {
  color: var(--success);
  background: rgba(5, 150, 105, 0.09);
}

.tag.warning {
  color: var(--warning);
  background: rgba(217, 119, 6, 0.09);
}

.tag.danger {
  color: var(--danger);
  background: rgba(220, 38, 38, 0.09);
}

.weekday-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}

.weekday-grid label {
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
  background: #ffffff;
  font-size: 12px;
}

.triple-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

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

.tiny {
  font-size: 11px;
}

.error-text {
  color: var(--danger);
  min-height: 18px;
  margin: 8px 0 0;
  font-size: 12px;
}

.empty-state {
  color: var(--muted);
  padding: 14px 0;
}

.inline-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

h1,
h2,
h3,
strong {
  letter-spacing: -0.02em;
}

h1 {
  margin: 0 0 8px;
  font-size: 26px;
}

h2 {
  margin: 0;
  font-size: 20px;
}

h3 {
  margin: 0;
  font-size: 15px;
}

p {
  margin: 0;
}

@media (max-width: 1100px) {
  .split-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }
}