/* ============================================================
   MATERIALS.CSS — Materials comparison page styles
   ============================================================ */

.materials-page {
  padding-top: 5rem;
  min-height: 70vh;
}

.materials__header {
  padding: var(--space-md) var(--space-md) var(--space-lg);
}

.materials__intro {
  margin-top: var(--space-sm);
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.8;
  max-width: 520px;
}

/* ─── COMPARISON TABLE ─── */
.mat-compare {
  padding: 0 var(--space-md) var(--space-xl);
  max-width: 800px;
}

.mat-compare__table {
  width: 100%;
  border-collapse: collapse;
}

.mat-compare__header th {
  padding: 0.75rem 1rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: left;
  border-bottom: 2px solid var(--text);
}

.mat-compare__header th:first-child {
  color: var(--muted);
}

.mat-compare__row td {
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.mat-compare__row td:first-child {
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  width: 30%;
}

/* ─── PROPERTY BARS ─── */
.mat-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mat-bar__track {
  flex: 1;
  height: 8px;
  border-radius: 100px;
  background: var(--border);
  overflow: hidden;
}

.mat-bar__fill {
  height: 100%;
  border-radius: 100px;
  background: var(--accent);
  width: 0;
}

.mat-bar__fill--pla {
  background: #4ecdc4;
}

.mat-bar__fill--petg {
  background: #ff6b35;
}

.mat-bar__fill--abs {
  background: #ffd700;
}

.mat-bar__fill--tpu {
  background: #9b59b6;
}

.mat-bar__label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  min-width: 30px;
  text-align: right;
}

/* ─── MATERIAL SECTIONS ─── */
.materials__content {
  padding: 0 var(--space-md) var(--space-xl);
}

.mat-section {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
}

.mat-section:last-child {
  border-bottom: 1px solid var(--border);
}

.mat-section__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.mat-section__color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mat-section__title {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.mat-section__desc {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: var(--space-md);
}

.mat-section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.mat-section__list-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.mat-section__list-title--pro {
  color: #2a7d3f;
}

.mat-section__list-title--con {
  color: var(--accent);
}

.mat-section__list {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.8;
}

.mat-section__list li::before {
  content: '+ ';
  color: #2a7d3f;
  font-weight: 700;
}

.mat-section__list--con li::before {
  content: '- ';
  color: var(--accent);
}

/* ─── PROPERTY BARS IN SECTIONS ─── */
.mat-section__bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.mat-section__bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.mat-section__bar-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 120px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .mat-section__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .materials-page {
    padding-top: 4rem;
  }

  .materials__header {
    padding: var(--space-sm) var(--space-sm) var(--space-md);
  }

  .mat-compare {
    padding: 0 var(--space-sm) var(--space-lg);
    overflow-x: auto;
  }

  .materials__content {
    padding: 0 var(--space-sm) var(--space-lg);
  }

  .mat-section__bar-label {
    min-width: 80px;
    font-size: 0.65rem;
  }
}