/* ═══════════════════════════════════════════════
   Multi-Step Calculator Super-Template CSS
   For complex calculators with grouped inputs,
   result breakdowns, and comparison modes.
   ═══════════════════════════════════════════════ */

/* ─── Input Group Sections ─── */
.ms-input-group {
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 12px;
  padding: 1.25rem 1.25rem 0.75rem;
  margin-bottom: 1rem;
  background: var(--card-bg, #fff);
  transition: border-color 0.2s;
}

.ms-input-group:focus-within {
  border-color: var(--primary, #2563eb);
}

.ms-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  padding-bottom: 0.75rem;
  gap: 0.5rem;
}

.ms-group-header h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ms-group-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.ms-group-toggle {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
  color: var(--text-secondary, #64748b);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.ms-group-toggle svg {
  width: 18px;
  height: 18px;
}

.ms-input-group.collapsed .ms-group-toggle {
  transform: rotate(-90deg);
}

.ms-group-body {
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.2s ease;
  max-height: 600px;
  opacity: 1;
}

.ms-input-group.collapsed .ms-group-body {
  max-height: 0;
  opacity: 0;
  padding: 0;
}

/* Badge for completed groups */
.ms-group-badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--success-bg, #dcfce7);
  color: var(--success, #16a34a);
  font-weight: 500;
  white-space: nowrap;
}

/* ─── Input Validation Feedback ─── */
.ms-field {
  position: relative;
  margin-bottom: 0.75rem;
}

.ms-field label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.3rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary, #64748b);
}

.ms-field .ms-check {
  width: 16px;
  height: 16px;
  color: var(--success, #16a34a);
  opacity: 0;
  transition: opacity 0.2s;
}

.ms-field.valid .ms-check {
  opacity: 1;
}

.ms-field input,
.ms-field select {
  width: 100%;
  box-sizing: border-box;
}

.ms-field .ms-validation-msg {
  font-size: 0.78rem;
  color: var(--error, #dc2626);
  margin-top: 0.2rem;
  min-height: 1.1rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.ms-field.invalid .ms-validation-msg {
  opacity: 1;
}

.ms-field.invalid input,
.ms-field.invalid select {
  border-color: var(--error, #dc2626);
}

.ms-field.valid input,
.ms-field.valid select {
  border-color: var(--success, #16a34a);
}

/* ─── Summary Card ─── */
.ms-summary-card {
  background: linear-gradient(135deg, var(--primary, #2563eb) 0%, var(--primary-dark, #1d4ed8) 100%);
  border-radius: 16px;
  padding: 1.5rem;
  color: #fff;
  text-align: center;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.18);
  display: none;
}

.ms-summary-card.visible {
  display: block;
  animation: msFadeSlide 0.35s ease-out;
}

@keyframes msFadeSlide {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.ms-summary-label {
  font-size: 0.85rem;
  opacity: 0.85;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ms-summary-value {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.15rem;
}

.ms-summary-unit {
  font-size: 1.1rem;
  font-weight: 400;
  opacity: 0.8;
}

.ms-summary-subtitle {
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 0.5rem;
}

/* ─── Result Breakdown Table ─── */
.ms-breakdown {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border, #e2e8f0);
  margin-bottom: 1.25rem;
  display: none;
}

.ms-breakdown.visible {
  display: block;
  animation: msFadeSlide 0.35s ease-out;
}

.ms-breakdown-title {
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  background: var(--surface, #f8fafc);
  border-bottom: 1px solid var(--border, #e2e8f0);
  margin: 0;
  color: var(--text-primary, #1e293b);
}

.ms-breakdown table {
  width: 100%;
  border-collapse: collapse;
}

.ms-breakdown th,
.ms-breakdown td {
  padding: 0.6rem 1rem;
  text-align: left;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border, #e2e8f0);
}

.ms-breakdown th {
  background: var(--surface, #f8fafc);
  color: var(--text-secondary, #64748b);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.ms-breakdown td {
  color: var(--text-primary, #1e293b);
}

.ms-breakdown tr:last-child td {
  border-bottom: none;
}

.ms-breakdown .ms-row-highlight {
  background: var(--primary-bg, #eff6ff);
  font-weight: 600;
}

.ms-breakdown .ms-row-highlight td {
  color: var(--primary, #2563eb);
}

/* ─── CSS Bar Chart ─── */
.ms-bar-chart {
  padding: 1rem;
  display: none;
}

.ms-bar-chart.visible {
  display: block;
}

.ms-bar-item {
  margin-bottom: 0.75rem;
}

.ms-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 0.3rem;
  color: var(--text-secondary, #64748b);
}

.ms-bar-label strong {
  color: var(--text-primary, #1e293b);
}

.ms-bar-track {
  height: 8px;
  border-radius: 4px;
  background: var(--surface, #f1f5f9);
  overflow: hidden;
}

.ms-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--primary, #2563eb);
  transition: width 0.6s ease-out;
  width: 0;
}

.ms-bar-fill.accent { background: var(--accent, #f59e0b); }
.ms-bar-fill.success { background: var(--success, #16a34a); }
.ms-bar-fill.info { background: var(--info, #0ea5e9); }

/* ─── Comparison Mode ─── */
.ms-comparison {
  display: none;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.ms-comparison.visible {
  display: grid;
  grid-template-columns: 1fr 1fr;
  animation: msFadeSlide 0.35s ease-out;
}

.ms-compare-col {
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}

.ms-compare-col.yours {
  border-color: var(--primary, #2563eb);
  background: var(--primary-bg, #eff6ff);
}

.ms-compare-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary, #64748b);
  margin-bottom: 0.3rem;
}

.ms-compare-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary, #1e293b);
}

.ms-compare-col.yours .ms-compare-value {
  color: var(--primary, #2563eb);
}

.ms-compare-detail {
  font-size: 0.8rem;
  color: var(--text-secondary, #64748b);
  margin-top: 0.25rem;
}

/* ─── Step Indicator (optional) ─── */
.ms-steps-indicator {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0;
  list-style: none;
}

.ms-step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border, #e2e8f0);
  transition: background 0.2s, transform 0.2s;
}

.ms-step-dot.active {
  background: var(--primary, #2563eb);
  transform: scale(1.3);
}

.ms-step-dot.completed {
  background: var(--success, #16a34a);
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .ms-summary-value {
    font-size: 2rem;
  }

  .ms-comparison.visible {
    grid-template-columns: 1fr;
  }

  .ms-input-group {
    padding: 1rem 1rem 0.5rem;
  }

  .ms-breakdown th,
  .ms-breakdown td {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
}

/* ─── Dark Mode ─── */
[data-theme="dark"] .ms-input-group {
  background: var(--card-bg, #1e293b);
  border-color: var(--border, #334155);
}

[data-theme="dark"] .ms-summary-card {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .ms-breakdown {
  border-color: var(--border, #334155);
}

[data-theme="dark"] .ms-breakdown-title {
  background: var(--surface, #1e293b);
  border-color: var(--border, #334155);
}

[data-theme="dark"] .ms-bar-track {
  background: var(--surface, #334155);
}

[data-theme="dark"] .ms-compare-col {
  border-color: var(--border, #334155);
}

[data-theme="dark"] .ms-compare-col.yours {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--primary, #2563eb);
}

[data-theme="dark"] .ms-group-badge {
  background: rgba(22, 163, 74, 0.15);
}

/* ─── Print ─── */
@media print {
  .ms-input-group { break-inside: avoid; }
  .ms-summary-card { box-shadow: none; border: 2px solid #2563eb; }
  .ms-group-toggle { display: none; }
  .ms-input-group.collapsed .ms-group-body { max-height: none; opacity: 1; }
}