:root {
  --bg: #f8fafb;
  --sidebar-bg: #ffffff;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text-secondary: #6b7280;
  --accent: #10b981;
  --accent-hover: #059669;
  --accent-light: #d1fae5;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ─── Layout ─── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 40;
  transition: transform 0.2s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.nav-item:hover {
  background: #f3f4f6;
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-light);
  color: #065f46;
  font-weight: 600;
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.sidebar-footer-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.sidebar-footer-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ─── Topbar ─── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 28px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-title {
  font-size: 20px;
  font-weight: 700;
  flex: 1;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius);
  background: #f3f4f6;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
}

.topbar-btn:hover {
  background: #e5e7eb;
  color: var(--text);
}

.mobile-menu-btn {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text);
}

/* ─── Page Content ─── */
.page-content {
  flex: 1;
  padding: 28px;
}

.page {
  animation: fadeIn 0.2s ease;
}

.page.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-header-actions {
  margin-top: 12px;
}

.page-desc {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

/* ─── Stats Grid ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.stat-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.stat-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.stat-ok {
  color: var(--accent);
}

/* ─── Dashboard Section ─── */
.dashboard-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.dashboard-section h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* ─── Table ─── */
.table-container {
  overflow-x: auto;
}

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

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #f9fafb;
}

.data-table tr:hover td {
  background: #f9fafb;
}

.data-table .team-name {
  font-weight: 600;
  color: var(--text);
}

.data-table .team-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 12px;
}

.data-table .team-link:hover {
  text-decoration: underline;
}

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

.dataset-badges {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  min-width: 220px;
}

.dataset-badge,
.dataset-empty {
  display: inline-flex;
  align-items: center;
  padding: 3px 7px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.dataset-badge.complete {
  background: #dcfce7;
  color: #166534;
}

.dataset-badge.missing {
  background: #f3f4f6;
  color: #9ca3af;
}

.dataset-empty {
  background: #fffbeb;
  color: #92400e;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}

.badge-league {
  background: #ede9fe;
  color: #5b21b6;
}

.badge-season {
  background: #dbeafe;
  color: #1e40af;
}

/* ─── Filter Bar ─── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-bar select,
.search-input {
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  min-width: 180px;
}

.search-input {
  min-width: 240px;
}

.search-input:focus,
.filter-bar select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* ─── Leagues Grid ─── */
.leagues-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.league-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: all 0.15s ease;
}

.league-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.league-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.league-card-name {
  font-size: 16px;
  font-weight: 700;
}

.league-card-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-light);
  color: #065f46;
  font-size: 13px;
  font-weight: 700;
}

.league-card-teams {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.league-team-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 6px;
  background: #f9fafb;
  transition: background 0.15s ease;
}

.league-team-row:hover {
  background: #f3f4f6;
}

.league-team-name {
  font-size: 14px;
  font-weight: 500;
}

.league-team-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
}

.league-team-link:hover {
  text-decoration: underline;
}

.league-season {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ─── Form Card ─── */
.form-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.form-card label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

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

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input[type="url"],
input[type="text"],
textarea,
select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.check-label {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.check-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

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

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: #f3f4f6;
  color: var(--text);
}

.btn-secondary:disabled {
  opacity: 0.65;
  cursor: wait;
}

.btn-compact {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.btn-link:hover {
  text-decoration: underline;
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: none;
  border-radius: var(--radius);
  background: #fef2f2;
  color: var(--danger);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-danger:hover {
  background: #fee2e2;
}

/* ─── Results Section ─── */
.results-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

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

.section-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.status-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 100px;
  background: #f3f4f6;
}

.status-badge.error {
  background: #fef2f2;
  color: var(--danger);
}

.status-badge.loading {
  background: #fffbeb;
  color: var(--warning);
}

/* ─── Endpoint Cards ─── */
.endpoint-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.endpoint-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #f9fafb;
  transition: all 0.15s ease;
}

.endpoint-card:hover {
  border-color: var(--accent);
  background: #f0fdf4;
}

.endpoint-card strong {
  font-size: 14px;
  font-weight: 600;
}

.endpoint-card code {
  font-size: 11px;
  color: var(--text-secondary);
  word-break: break-all;
}

.endpoint-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

/* ─── JSON Preview ─── */
.json-preview {
  min-height: 200px;
  max-height: 480px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #1e293b;
  color: #e2e8f0;
  padding: 16px;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  font-family: "JetBrains Mono", "Fira Code", monospace;
}

.preview-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ─── Empty State ─── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* ─── Modal ─── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 0;
  background: rgba(0,0,0,0.5);
  cursor: pointer;
}

.modal-panel {
  position: relative;
  width: min(900px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card-bg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  z-index: 1;
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #f3f4f6;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  padding: 0;
}

.modal-close:hover {
  background: #e5e7eb;
}

.modal-footer {
  position: sticky;
  bottom: 0;
  padding: 14px 24px;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
}

.modal-footer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.visual-body {
  padding: 24px;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .mobile-menu-btn {
    display: block;
  }

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

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

  .input-row {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-bar select,
  .search-input {
    min-width: 100%;
  }

  .page-content {
    padding: 16px;
  }

  .topbar {
    padding: 12px 16px;
  }

  .endpoint-cards {
    grid-template-columns: 1fr;
  }

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