:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-text: #2c2c2c;
  --color-text-muted: #6b6b6b;
  --color-accent: #8b5a2b;
  --color-accent-hover: #6d4422;
  --color-border: #e8e4df;
  --color-black-tea: #5c3d2e;
  --color-herbal-tea: #4a7c59;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

#root {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

@media (max-width: 700px) {
  #root {
    grid-template-columns: 1fr;
    padding: 2rem 1.25rem;
  }
}

/* Left panel - Tea options */
.options-panel h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

.tea-category {
  margin-bottom: 1.5rem;
}

.tea-category h3 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.tea-category h3.black-tea-heading {
  color: var(--color-black-tea);
}

.tea-category h3.herbal-tea-heading {
  color: var(--color-herbal-tea);
}

.tea-list {
  list-style: none;
}

.tea-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.tea-item:last-child {
  border-bottom: none;
}

.tea-name {
  font-weight: 500;
  font-size: 0.95rem;
}

.tea-description {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

.tea-item--oos .tea-name {
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.tea-oos {
  font-size: 0.75rem;
  color: #b04040;
  margin-top: 0.125rem;
}

/* Right panel - Randomizer */
.randomizer-panel {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

#result-header {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

#result-text {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-accent);
  min-height: 2.5rem;
  word-wrap: break-word;
}

.button-group {
  display: flex;
  gap: 0.75rem;
}

button {
  flex: 1;
  padding: 0.875rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
}

#randomize {
  background: var(--color-accent);
  color: white;
}

#randomize:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

#randomize:active {
  transform: translateY(0);
}

/* Filter options */
#checkbox-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.filter-group-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.filter-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.checkbox-wrapper input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.checkbox-wrapper label {
  font-size: 0.875rem;
  cursor: pointer;
  user-select: none;
}