:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #eef3fb;
  --sidebar: #12304a;
  --sidebar-muted: #8ea8bf;
  --primary: #2a6f97;
  --primary-strong: #174b72;
  --accent: #e6f1f8;
  --text: #163047;
  --muted: #5e7488;
  --border: #d7e1eb;
  --success: #1f7a4f;
  --warning: #a56b00;
  --danger: #b64545;
  --shadow: 0 18px 45px rgba(18, 48, 74, 0.08);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  background: linear-gradient(180deg, #f7f9fc 0%, var(--bg) 100%);
  color: var(--text);
}

body.modal-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
  background: linear-gradient(180deg, #143552 0%, #0f273d 100%);
  color: #fff;
  padding: 28px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  margin-bottom: 28px;
}

.brand small {
  display: block;
  color: var(--sidebar-muted);
  margin-top: 6px;
}

.version-chip {
  display: inline-block;
  width: fit-content;
  padding: 5px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #f4f8fc;
  font-size: 0.78rem;
  line-height: 1.3;
}

.nav-list {
  display: grid;
  gap: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  color: #d9e6f2;
}

.nav-link.active,
.nav-link:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.main {
  padding: 28px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: 2rem;
}

.page-header p {
  margin: 0;
  color: var(--muted);
}

.header-actions,
.filter-bar,
.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
}

.card,
.panel,
.form-panel {
  background: var(--surface);
  border: 1px solid rgba(215, 225, 235, 0.75);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card {
  padding: 18px;
}

.card h3,
.panel h2,
.form-panel h2 {
  margin: 0 0 8px;
}

.metric-value {
  font-size: 1.9rem;
  font-weight: 700;
  margin: 8px 0;
}

.metric-note {
  color: var(--muted);
  font-size: 0.92rem;
}

.panel {
  padding: 20px;
}

.panel + .panel,
.panel + .form-panel,
.form-panel + .panel,
.form-panel + .form-panel {
  margin-top: 20px;
}

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

.table-wrap {
  overflow-x: auto;
}

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

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

.form-panel {
  padding: 20px;
}

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

.field {
  display: grid;
  gap: 7px;
}

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

label {
  font-weight: 600;
  font-size: 0.95rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 11px 12px;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 100px;
  resize: vertical;
}

.btn,
.btn-secondary,
.btn-danger,
.btn-ghost {
  border: none;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
}

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

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

.btn-secondary {
  background: var(--accent);
  color: var(--primary-strong);
}

.btn-danger {
  background: #fae9e9;
  color: var(--danger);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.inline-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.badge.default {
  background: #eef3f7;
  color: #456176;
}

.badge.success {
  background: #e5f6ee;
  color: var(--success);
}

.badge.warning {
  background: #fff4db;
  color: var(--warning);
}

.badge.danger {
  background: #fdecec;
  color: var(--danger);
}

.badge.info {
  background: #e6f1f8;
  color: var(--primary-strong);
}

.three-column {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

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

.list-item {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.list-item strong {
  display: block;
  margin-bottom: 6px;
}

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

.empty-state {
  padding: 18px;
  background: var(--surface-soft);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  color: var(--muted);
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.report-list {
  margin: 0;
  padding-left: 18px;
}

.report-list li + li {
  margin-top: 8px;
}

.guide-grid {
  display: grid;
  gap: 18px;
}

.guide-list {
  margin: 0;
  padding-left: 18px;
}

.guide-list li + li {
  margin-top: 8px;
}

.toast-container {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: grid;
  gap: 12px;
  width: min(360px, calc(100vw - 32px));
  z-index: 1200;
}

.toast {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast strong {
  font-size: 0.95rem;
}

.toast span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.toast-success {
  border-left: 4px solid var(--success);
}

.toast-danger {
  border-left: 4px solid var(--danger);
}

.toast-info {
  border-left: 4px solid var(--primary);
}

.toast.is-hiding {
  opacity: 0;
  transform: translateY(8px);
}

.confirm-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 39, 61, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1300;
}

.confirm-backdrop.hidden {
  display: none;
}

.confirm-card {
  width: min(460px, 100%);
  background: var(--surface);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 24px;
  border: 1px solid rgba(215, 225, 235, 0.85);
}

.confirm-card h2 {
  margin: 0 0 10px;
}

.confirm-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.confirm-actions {
  margin-top: 20px;
  justify-content: flex-end;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

  .main {
    padding: 20px;
  }

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

@media (max-width: 640px) {
  .page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .card-grid {
    grid-template-columns: 1fr 1fr;
  }

  .btn,
  .btn-secondary,
  .btn-danger,
  .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  .header-actions,
  .filter-bar,
  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
    width: auto;
  }

  .confirm-card {
    padding: 20px;
  }

  .confirm-actions {
    justify-content: stretch;
  }
}