:root {
  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-success-light: #34d399;
  --color-danger: #ef4444;
  --color-info: #60a5fa;
  --color-warning: #f87171;
  --color-white: #fff;
  --color-success-bg: rgba(16, 185, 129, 0.05);
  --color-chart-bg: #0f172a;
  --color-accent-bg: rgba(244, 63, 94, 0.05);
}

.watch-tracker-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  color: var(--text-base);
  width: 100%;
}

.tool-main-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.2);
}

.tabs-header {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-page);
  padding: 0.35rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  max-width: fit-content;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.6rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-base);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: var(--accent);
  background: rgba(244, 63, 94, 0.1);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fade-in 0.25s ease-out;
}

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

.predictor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .predictor-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.tracker-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 992px) {
  .tracker-layout {
    grid-template-columns: 4fr 5fr;
  }
}

.drift-predictor-section,
.accuracy-tracker-section,
.log-history-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-header h4 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.control-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  color: var(--text-base);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  outline: none;
  transition: all 0.2s ease;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(244, 63, 94, 0.15);
}

select.form-control {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: var(--bg-page) url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f43f5e' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 1rem center/1rem;
  padding-right: 2.75rem;
  cursor: pointer;
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit .form-control {
  padding-right: 3rem;
}

.unit-badge {
  position: absolute;
  right: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
}

.presets-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.preset-btn {
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(244, 63, 94, 0.05);
}

.projection-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  background: var(--bg-page);
}

.projection-table,
.history-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.projection-table th,
.projection-table td,
.history-table th,
.history-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.projection-table th,
.history-table th {
  background: rgba(255, 255, 255, 0.02);
  font-weight: 600;
  color: var(--text-muted);
}

.drift-val {
  font-weight: 700;
  font-size: 0.9375rem;
}

.drift-val.ahead {
  color: var(--color-success);
}

.drift-val.behind {
  color: var(--color-danger);
}

.drift-val.neutral {
  color: var(--text-muted);
}

.standards-section {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.standards-section h4,
.projections-section h4 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.standard-card {
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.std-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.std-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.std-status {
  font-size: 0.6875rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.std-tolerance {
  font-size: 1rem;
  font-weight: 700;
}

.standard-card.passed {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.standard-card.passed .std-status {
  color: var(--color-success);
}

.standard-card.failed {
  border-color: var(--border-color);
  opacity: 0.5;
}

.standard-card.failed .std-status {
  color: var(--text-muted);
}

.watch-row-controls {
  display: flex;
  gap: 0.5rem;
  width: 100%;
}

.watch-row-controls select {
  flex: 1;
}

#delete-watch-btn {
  padding: 0.75rem;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.input-with-button {
  display: flex;
  gap: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: 0.375rem;
}

.btn-full {
  width: 100%;
}

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

.btn-primary:hover {
  background: #e11d48;
}

.btn-success {
  background: var(--color-success);
  color: var(--color-white);
}

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

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-danger);
}

.btn-danger:hover {
  background: var(--color-danger);
  color: var(--color-white);
}

.btn-text {
  background: transparent;
  border: none;
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}

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

.watch-selection-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.01);
  padding: 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
}

.log-form-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: all 0.2s ease;
}

.log-form-section h4 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.log-form-section.disabled-form {
  opacity: 0.25;
  pointer-events: none;
}

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

@media (min-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat-box {
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.stat-value {
  font-size: 1.125rem;
  font-weight: 700;
}

.status-superlative {
  color: var(--color-success);
}

.status-excellent {
  color: var(--color-success-light);
}

.status-good {
  color: var(--color-info);
}

.status-service {
  color: var(--color-warning);
}

.no-logs-msg {
  padding: 2rem;
  text-align: center;
  border: 1px dashed var(--border-color);
  border-radius: 0.75rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.no-logs-msg p {
  margin: 0;
}

.table-wrapper {
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  background: var(--bg-page);
  max-height: 300px;
  overflow-y: auto;
}

.header-actions-row {
  display: flex;
  gap: 0.5rem;
}

.chart-card-wrapper {
  background: var(--color-chart-bg);
  padding: 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  margin-bottom: 1rem;
}

.chart-card-wrapper canvas {
  width: 100%;
  height: 180px;
  display: block;
}

.explanation-box {
  background: var(--color-accent-bg);
  border: 1px solid var(--accent);
  border-radius: 0.5rem;
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--text-base);
  line-height: 1.5;
}

.pos-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.4rem;
  border-radius: 0.3rem;
  margin-left: 0.5rem;
  text-transform: uppercase;
}