:root {
  --primary: #0f766e;
  --primary-hover: #115e59;
  --primary-light: #ccfbf1;
  --secondary: #0369a1;
  --success: #15803d;
  --success-bg: #dcfce7;
  --danger: #b91c1c;
  --danger-bg: #fee2e2;
  --warning: #b45309;
  --warning-bg: #fef3c7;
  --bg-main: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --radius: 8px;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-header {
  background-color: #042f2e;
  color: #ffffff;
  padding: 1.25rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  font-size: 2rem;
}

.logo-group h1 {
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tagline {
  font-size: 0.85rem;
  color: #99f6e4;
}

.rate-badge {
  background-color: #134e4a;
  color: #5eead4;
  padding: 0.4rem 0.8rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.85rem;
  border: 1px solid #2dd4bf;
}

.main-container {
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.form-row {
  display: flex;
  gap: 1.5rem;
}

.form-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.kpi-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.kpi-card.highlight {
  border-left: 4px solid var(--primary);
  background: #f0fdfa;
}

.kpi-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.kpi-value {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.kpi-subtext {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.text-danger {
  color: var(--danger) !important;
}

.filing-status {
  font-size: 1.35rem;
  color: var(--secondary);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.help-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

textarea#pasteInput {
  width: 100%;
  height: 160px;
  font-family: monospace;
  font-size: 0.85rem;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  resize: vertical;
  background: #fdfdfd;
}

.upload-dropzone {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: #f8fafc;
  cursor: pointer;
  position: relative;
}

.upload-dropzone:hover {
  border-color: var(--primary);
  background: #f0fdfa;
}

.upload-dropzone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.drop-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.file-name-display {
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--primary);
}

.action-footer {
  margin-top: 1.25rem;
  display: flex;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: all 0.15s ease-in-out;
}

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

.btn-secondary {
  background-color: #f1f5f9;
  color: #334155;
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background-color: #e2e8f0;
}

.btn-success {
  background-color: var(--success);
  color: #fff;
}
.btn-success:hover {
  background-color: #166534;
}

.btn-outline {
  background: transparent;
  color: #475569;
  border: 1px solid var(--border-color);
}
.btn-outline:hover {
  background: #f1f5f9;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.filter-bar {
  margin-bottom: 1rem;
}

.filter-pills {
  display: flex;
  gap: 0.5rem;
}

.filter-pill {
  padding: 0.35rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 9999px;
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  cursor: pointer;
  color: var(--text-muted);
}

.filter-pill.active {
  background: var(--text-main);
  color: #fff;
}

.table-container {
  overflow-x: auto;
  max-height: 480px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.schedule-table th {
  background: #f8fafc;
  padding: 0.65rem 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1;
}

.schedule-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
}

.schedule-table tr.row-invalid {
  background-color: #fff5f5;
}

.schedule-table tr.row-warning {
  background-color: #fffbeb;
}

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  text-transform: uppercase;
}

.badge-valid {
  background: var(--success-bg);
  color: var(--success);
}

.badge-error {
  background: var(--danger-bg);
  color: var(--danger);
}

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

.badge-aggregated {
  background: #e0f2fe;
  color: #0284c7;
}

.issue-tag {
  display: block;
  font-size: 0.75rem;
  margin-top: 0.2rem;
}

.issue-tag.error {
  color: var(--danger);
}

.issue-tag.warning {
  color: var(--warning);
}

.suggestion-text {
  color: #475569;
  font-style: italic;
}

.rules-info-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.rule-item {
  background: #f8fafc;
  padding: 0.75rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
}

.rule-item strong {
  display: block;
  margin-bottom: 0.25rem;
  color: #0f172a;
}

.app-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 1.5rem 0;
}