/* =========================================================
   treatment.css — 하지정맥류 치료 섹션 스타일
   ========================================================= */

/* ---------- 서브 탭 네비 ---------- */
.treatment-subnav {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  z-index: 100;
}

.treatment-subnav__list {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.treatment-subnav__list::-webkit-scrollbar { display: none; }

.treatment-subnav__link {
  display: block;
  padding: var(--space-4) var(--space-6);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-text-mute);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.treatment-subnav__link:hover { color: var(--color-primary-500); }

.treatment-subnav__link.active {
  color: var(--color-primary-500);
  border-bottom-color: var(--color-primary-500);
}

/* ---------- 치료법 카드 ---------- */
.treat-method {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

.treat-method-item {
  padding: var(--space-8);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.treat-method-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary-500);
}

.treat-method-item__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .treat-method-item__header {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-8);
  }
}

.treat-method-item__icon {
  width: 100%;
  height: auto;
  min-height: 180px;
  max-height: 320px;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-500);
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .treat-method-item__icon {
    width: 260px;
    min-width: 260px;
    min-height: 200px;
    max-height: 220px;
  }
}

.treat-method-item__icon img {
  width: 100%;
  height: 100%;
  max-height: 320px;
  object-fit: cover;
  display: block;
}

.treat-method-item__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-bold);
  line-height: 1.3;
  margin-bottom: 4px;
}

.treat-method-item__sub {
  font-size: var(--fs-small);
  color: var(--color-text-mute);
}

.treat-method-item__body {
  font-size: var(--fs-body);
  color: var(--color-text-sub);
  line-height: 1.85;
  margin-bottom: var(--space-6);
}

.treat-method-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.treat-method-item__tag {
  font-size: var(--fs-tiny);
  font-weight: var(--fw-semibold);
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-pill);
  padding: 3px var(--space-3);
}

.treat-method-item__pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 480px) {
  .treat-method-item__pros-cons { grid-template-columns: 1fr; }
}

.treat-pros, .treat-cons {
  padding: var(--space-4);
  border-radius: var(--radius-sm);
}

.treat-pros { background: #f0fdf4; }
.treat-cons { background: #fef2f2; }

.treat-pros__title { color: #16a34a; font-size: var(--fs-small); font-weight: var(--fw-bold); margin-bottom: var(--space-2); }
.treat-cons__title { color: #dc2626; font-size: var(--fs-small); font-weight: var(--fw-bold); margin-bottom: var(--space-2); }

.treat-pros ul, .treat-cons ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.treat-pros li, .treat-cons li {
  font-size: var(--fs-small);
  color: var(--color-text);
  padding-left: var(--space-4);
  position: relative;
  line-height: 1.5;
}

.treat-pros li::before { content: '✓'; position: absolute; left: 0; color: #16a34a; font-weight: 700; }
.treat-cons li::before { content: '·'; position: absolute; left: 2px; color: #dc2626; font-weight: 700; }

/* ---------- 비교 표 ---------- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-small);
}

.compare-table th {
  background: var(--color-primary-700);
  color: #fff;
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-weight: var(--fw-semibold);
}

.compare-table th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.compare-table th:last-child  { border-radius: 0 var(--radius-sm) 0 0; }

.compare-table td {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:nth-child(even) td { background: var(--color-bg-alt); }

/* ---------- 적응증 배너 ---------- */
.indication-box {
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.indication-box__title {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-primary-700);
  margin-bottom: var(--space-5);
}

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

.indication-box__list li {
  font-size: var(--fs-small);
  color: var(--color-text);
  padding-left: var(--space-5);
  position: relative;
  line-height: 1.6;
}

.indication-box__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary-500);
  font-weight: var(--fw-bold);
}