.builder-body {
  min-height: 100vh;
}

.builder-app {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2.5rem;
}

.builder-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.builder-title {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  color: #fff;
  text-shadow: 3px 3px 0 var(--accent-pink), -1px -1px 0 #2d3436;
}

.builder-subtitle {
  margin: 0.25rem 0 0;
  color: #fff;
  opacity: 0.9;
}

.builder-link-play {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.1rem;
  border: 3px solid #2d3436;
  border-radius: 999px;
  background: var(--accent-yellow);
  color: var(--text-dark);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 0 #2d3436;
}

.builder-link-play:hover {
  transform: translateY(-2px);
}

.builder-notice {
  margin: 0 0 1rem;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  border: 3px solid #2d3436;
  background: #fff;
  font-weight: 600;
  min-height: 2.75rem;
}

.builder-notice:empty {
  display: none;
}

.builder-notice.is-success {
  background: #dff9ed;
}

.builder-notice.is-error {
  background: #ffe8e0;
}

.builder-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.btn-builder {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border: 3px solid #2d3436;
  border-radius: 12px;
  background: #fff;
  color: var(--text-dark);
  cursor: pointer;
  box-shadow: 0 3px 0 #2d3436;
}

.btn-builder:hover {
  transform: translateY(-1px);
}

.btn-builder--primary {
  background: var(--accent-green);
  color: #fff;
}

.btn-builder--danger {
  background: #fab1a0;
}

.btn-builder--small {
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
}

.btn-builder--file {
  display: inline-flex;
  align-items: center;
}

.builder-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.builder-panel {
  background: #fff;
  border: 4px solid #2d3436;
  border-radius: 20px;
  padding: 1.1rem 1.15rem;
  margin-bottom: 1rem;
  box-shadow: 0 6px 0 #2d3436;
}

.builder-panel-title {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  color: var(--accent-pink);
}

.builder-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.builder-panel-head .builder-panel-title {
  margin: 0;
}

.deck-list,
.card-list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
}

.deck-list-item,
.card-list-item {
  margin-bottom: 0.4rem;
}

.deck-list-btn,
.card-list-btn {
  width: 100%;
  text-align: left;
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 0.55rem 0.7rem;
  border: 3px solid #2d3436;
  border-radius: 10px;
  background: #f8f9fa;
  cursor: pointer;
}

.deck-list-btn.is-selected,
.card-list-btn.is-selected {
  background: var(--accent-yellow);
  font-weight: 700;
}

.deck-list-meta {
  display: block;
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: 0.15rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field--checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

.form-field input,
.form-field textarea,
.intro-deck-select {
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.5rem 0.65rem;
  border: 3px solid #2d3436;
  border-radius: 10px;
}

.form-hint {
  font-weight: 400;
  opacity: 0.7;
}

.builder-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

@media (max-width: 800px) {
  .builder-layout {
    grid-template-columns: 1fr;
  }

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