/**
 * === archive-treatment.css - Styles cho trang archive nhóm điều trị ===
 *
 * Mô tả: Layout alternating trái/phải cho treatment rows, kế thừa
 *        pattern từ homepage section treatment_group.
 *        Reveal animation per row khi scroll vào viewport.
 *
 * Flow:
 *   1. .archive-list--treatment  — flex column container các rows
 *   2. .treatment-row            — 2-col grid (image + content)
 *   3. .treatment-row--reverse   — đảo image sang phải
 *   4. .treatment-row__image-col — cột ảnh full height rounded
 *   5. .treatment-row__content-col — cột nội dung với badge, title, excerpt, CTAs
 */

/* ==========================================================================
   ARCHIVE CONTENT WRAPPER
   ========================================================================== */

.archive-content--treatment {
  padding-block: var(--space-12);
}

/* ==========================================================================
   LIST CONTAINER
   ========================================================================== */

.archive-list--treatment {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

/* ==========================================================================
   TREATMENT ROW
   ========================================================================== */

.treatment-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.treatment-row--reverse {
  direction: rtl;
}

.treatment-row--reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .treatment-row,
  .treatment-row--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: var(--space-6);
  }

  .treatment-row--reverse > * {
    direction: ltr;
  }
}

/* ==========================================================================
   IMAGE COLUMN
   ========================================================================== */

.treatment-row__image-col {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--color-primary-50);
}

.treatment-row__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.treatment-row:hover .treatment-row__image {
  transform: scale(1.03);
}

.treatment-row__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary-100) 0%,
    var(--color-primary-50) 100%
  );
  color: var(--color-primary-300);
}

/* ==========================================================================
   CONTENT COLUMN
   ========================================================================== */

.treatment-row__content-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.treatment-row__badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  align-self: flex-start;
}

.treatment-row__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-neutral-900);
  margin: 0;
  line-height: 1.25;
}

@media (max-width: 768px) {
  .treatment-row__title {
    font-size: var(--font-size-xl);
  }
}

.treatment-row__excerpt {
  font-size: var(--font-size-base);
  color: var(--color-neutral-600);
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   ACTIONS
   ========================================================================== */

.treatment-row__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}

.treatment-row__actions .btn {
  flex-shrink: 0;
}

/* ==========================================================================
   REVEAL ANIMATION (sync với reveal-on-scroll.js)
   ========================================================================== */

.treatment-row.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.treatment-row.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.treatment-row.reveal[data-reveal-index="1"] {
  transition-delay: 0.1s;
}

.treatment-row.reveal[data-reveal-index="2"] {
  transition-delay: 0.2s;
}

.treatment-row.reveal[data-reveal-index="3"] {
  transition-delay: 0.3s;
}