:root {
  --n-bg-main: #f8fafc;
  --n-card-bg: #fff;
  --n-card-border: #e2e8f0;
  --n-text-main: #0f172a;
  --n-text-muted: #64748b;
  --n-primary: #d97706;
  --n-primary-hover: #b45309;
  --n-primary-light: #fef3c7;
  --n-kettle-copper-light: #fbbf24;
  --n-kettle-copper-mid: #d97706;
  --n-kettle-copper-dark: #78350f;
  --n-kettle-border: #451a03;
  --n-kettle-inner: #0f172a;
  --n-wort-bottom: #92400e;
  --n-grain-bed: #b45309;
  --n-badge-excellent-bg: #dcfce7;
  --n-badge-excellent-text: #166534;
  --n-badge-good-bg: #e0f2fe;
  --n-badge-good-text: #075985;
  --n-badge-average-bg: #fef3c7;
  --n-badge-average-text: #92400e;
  --n-badge-poor-bg: #fee2e2;
  --n-badge-poor-text: #991b1b;
}

.theme-dark {
  --n-bg-main: #090d16;
  --n-card-bg: #111827;
  --n-card-border: #1f2937;
  --n-text-main: #f9fafb;
  --n-text-muted: #9ca3af;
  --n-primary: #f59e0b;
  --n-primary-hover: #d97706;
  --n-primary-light: #451a03;
  --n-kettle-copper-light: #d97706;
  --n-kettle-copper-mid: #92400e;
  --n-kettle-copper-dark: #451a03;
  --n-kettle-border: #290e02;
  --n-kettle-inner: #030712;
  --n-wort-bottom: #78350f;
  --n-grain-bed: #92400e;
  --n-badge-excellent-bg: #064e3b;
  --n-badge-excellent-text: #6ee7b7;
  --n-badge-good-bg: #0c4a6e;
  --n-badge-good-text: #7dd3fc;
  --n-badge-average-bg: #78350f;
  --n-badge-average-text: #fde68a;
  --n-badge-poor-bg: #7f1d1d;
  --n-badge-poor-text: #fca5a5;
}

.beer-mash-calculator-card {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-card-border);
  border-radius: 1rem;
  padding: 1.75rem;
  color: var(--n-text-main);
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.06);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 840px) {
  .beer-mash-calculator-card {
    grid-template-columns: 1fr 1fr;
  }
}

.unit-switcher,
.stage-switcher {
  display: flex;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.unit-btn,
.stage-btn {
  flex: 1;
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--n-text-muted, #94a3b8);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.unit-btn.active,
.stage-btn.active {
  background: var(--n-primary, #f59e0b);
  color: #000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.form-group {
  margin-bottom: 1.35rem;
}

.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--n-text-main);
}

.form-val {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--n-primary);
}

.range-input {
  width: 100%;
  accent-color: var(--n-primary);
  cursor: pointer;
}

.custom-select-wrapper {
  position: relative;
}

.select-trigger {
  width: 100%;
  padding: 0.65rem 1rem;
  background-color: var(--n-bg-main);
  border: 1px solid var(--n-card-border);
  border-radius: 0.5rem;
  color: var(--n-text-main);
  font-size: 0.875rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 0.25rem;
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-card-border);
  border-radius: 0.5rem;
  box-shadow: 0 10px 20px -3px rgba(0, 0, 0, 0.12);
  display: none;
  z-index: 20;
  max-height: 230px;
  overflow-y: auto;
}

.select-dropdown.open {
  display: block;
}

.preset-option {
  width: 100%;
  padding: 0.65rem 1rem;
  border: none;
  background: transparent;
  color: var(--n-text-main);
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
}

.preset-option:hover {
  background-color: var(--n-primary-light);
}

.results-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background-color: var(--n-bg-main);
  border: 1px solid var(--n-card-border);
  border-radius: 0.875rem;
  padding: 1.25rem;
}

.kettle-box {
  width: 100%;
  height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.badge-wrapper {
  text-align: center;
  margin-top: -0.5rem;
}

.status-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge-excellent {
  background-color: var(--n-badge-excellent-bg);
  color: var(--n-badge-excellent-text);
}

.badge-good {
  background-color: var(--n-badge-good-bg);
  color: var(--n-badge-good-text);
}

.badge-average {
  background-color: var(--n-badge-average-bg);
  color: var(--n-badge-average-text);
}

.badge-poor {
  background-color: var(--n-badge-poor-bg);
  color: var(--n-badge-poor-text);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.metric-card {
  background-color: var(--n-card-bg);
  border: 1px solid var(--n-card-border);
  border-radius: 0.625rem;
  padding: 0.85rem;
}

.metric-title {
  font-size: 0.75rem;
  color: var(--n-text-muted);
  font-weight: 600;
}

.metric-val {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--n-text-main);
  margin-top: 0.25rem;
}

.expected-table {
  width: 100%;
  font-size: 0.8125rem;
  border-collapse: collapse;
  margin-top: 0.25rem;
  background-color: var(--n-card-bg);
  border-radius: 0.5rem;
  border: 1px solid var(--n-card-border);
  overflow: hidden;
}

.expected-table th,
.expected-table td {
  padding: 0.5rem 0.65rem;
  text-align: center;
  border-bottom: 1px solid var(--n-card-border);
}

.expected-table th {
  color: var(--n-text-muted);
  font-weight: 700;
  background-color: rgba(0, 0, 0, 0.02);
}