/* ── Builder page styles ────────────────────────────────── */

/* Form card */
.builder-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.form-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-select {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  padding: 0.6rem 0.75rem;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: border-color 0.15s;
  appearance: auto;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Point limit row */
.points-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.points-range {
  flex: 1;
  accent-color: var(--color-accent);
  height: 4px;
  cursor: pointer;
  background: var(--color-surface-2);
  border-radius: 2px;
  appearance: auto;
}

.points-number {
  width: 80px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  padding: 0.5rem 0.6rem;
  font-size: 0.9375rem;
  text-align: center;
}

.points-number:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Form actions */
.form-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.55rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:not(:disabled):active { transform: scale(0.97); }

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

.btn-accent {
  background: var(--color-accent);
  color: #000;
}

.btn-ghost {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.btn-ghost:hover { color: var(--color-text); border-color: var(--color-accent); }

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

/* Loading */
.builder-loading {
  display: flex;
  justify-content: center;
  padding: var(--space-12) 0;
}

.builder-loading-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.builder-loading-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.builder-loading-sub {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-lg { width: 48px; height: 48px; border-width: 4px; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Error */
.error-message {
  color: #ef5350;
  padding: var(--space-3);
  background: rgba(239, 83, 80, 0.1);
  border-radius: 8px;
  margin: var(--space-3) 0;
}

/* Results */
.results-header {
  margin-bottom: var(--space-5);
}

.results-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.results-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Variation cards */
.variations-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.variation-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: 16px;
  padding: var(--space-5);
}

.variation-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.variation-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.variation-pts {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 700;
}

.variation-units {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.variation-unit {
  background: var(--color-surface-2);
  border-radius: 8px;
  padding: var(--space-3);
}

.variation-unit-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.vu-ship {
  font-weight: 700;
  color: var(--color-text);
  font-size: 0.9375rem;
}

.vu-pilot {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vu-pts {
  font-weight: 700;
  color: var(--color-accent);
  font-size: 0.875rem;
  flex-shrink: 0;
}

.vu-upgrades {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.vu-upgrade {
  background: rgba(var(--color-primary-rgb), 0.1);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.vu-upgrade em {
  font-style: normal;
  color: var(--color-accent);
  font-weight: 600;
}

/* Strategy block */
.variation-strategy {
  background: rgba(var(--color-accent-rgb), 0.05);
  border: 1px solid rgba(var(--color-accent-rgb), 0.12);
  border-radius: 8px;
  padding: var(--space-3);
}

.strategy-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.strategy-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Missing section */
.missing-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-5);
}

.missing-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.missing-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.missing-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.missing-item {
  background: var(--color-surface-2);
  border-radius: 10px;
  padding: var(--space-3);
}

.missing-item-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
  flex-wrap: wrap;
}

.missing-name {
  font-weight: 700;
  color: var(--color-text);
  font-size: 0.9375rem;
}

.missing-type {
  font-size: 0.75rem;
  background: var(--color-surface);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--color-text-muted);
}

.missing-pts {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-left: auto;
}

.missing-reason {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-2);
}

/* Toast container */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  pointer-events: auto;
  white-space: nowrap;
  animation: toast-in 0.2s ease;
}

.toast.success { border-color: #4caf50; color: #4caf50; }
.toast.error   { border-color: #f44336; color: #f44336; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
  .builder-form { padding: var(--space-4); }
  .variation-card { padding: var(--space-4); }
  .variation-header { flex-direction: column; }
  .variation-header .btn { width: 100%; justify-content: center; }
}