/* ===========================================
   TREATMENTS.CSS — Individual Treatment Page Styles
   =========================================== */

/* ---- Treatment Hero ---- */
.treatment-hero {
  position: relative;
  padding: 140px 0 100px;
  text-align: center;
  overflow: hidden;
  background: var(--color-bg-darker);
}

.treatment-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(107, 128, 54, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.treatment-hero .label {
  display: inline-block;
  color: var(--color-gold);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.treatment-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 20px;
}

.treatment-hero p {
  color: var(--color-text-muted);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---- Treatment Process (4 steps) ---- */
.treatment-process {
  padding: var(--section-padding);
  background: var(--color-bg-dark);
}

.treatment-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.process-step {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition-slow);
}

.process-step:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-4px);
}

.process-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(107, 128, 54, 0.08);
  color: var(--color-gold);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  border: 1px solid var(--color-border-gold);
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.process-step p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---- Treatment Benefits ---- */
.treatment-benefits {
  padding: var(--section-padding);
  background: var(--color-bg-darker);
}

.treatment-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.benefit-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition-slow);
}

.benefit-card:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-4px);
}

.benefit-card .icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  display: block;
}

.benefit-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.benefit-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---- Treatment FAQ ---- */
.treatment-faq {
  padding: var(--section-padding);
  background: var(--color-bg-dark);
}

.treatment-faq-list {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--container-padding);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-gold);
}

.faq-question h3 {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 500;
  color: inherit;
  margin: 0;
}

.faq-question .faq-toggle {
  font-size: 1.4rem;
  color: var(--color-gold);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer-inner {
  padding: 0 0 24px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ---- Treatment CTA ---- */
.treatment-cta {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-gold-dark) 0%, var(--color-gold) 50%, var(--color-gold-light) 100%);
}

.treatment-cta h2 {
  color: var(--color-on-accent);
  margin-bottom: 16px;
}

.treatment-cta p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

/* ---- Treatment Switcher Nav (제목 바로 아래, sticky) ---- */
.treatment-nav {
  position: sticky;
  top: 72px; /* 고정 헤더 높이만큼 내려서 그 아래에 붙임 */
  z-index: 900;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.treatment-nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  gap: 10px;
  overflow-x: auto; /* 항목이 많아 좁은 화면에서는 가로 스크롤 */
  scrollbar-width: none; /* Firefox: 스크롤바 숨김 */
}

.treatment-nav-inner::-webkit-scrollbar {
  display: none; /* Chrome/Safari: 스크롤바 숨김 */
}

.treatment-nav-link {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 9px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.treatment-nav-link:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(107, 128, 54, 0.06);
}

.treatment-nav-link.active {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-on-accent);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .treatment-process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .treatment-hero {
    padding: 100px 24px 60px;
  }

  .treatment-process-grid {
    grid-template-columns: 1fr;
  }

  .treatment-benefits-grid {
    grid-template-columns: 1fr;
  }

  .treatment-cta {
    padding: 60px 24px;
  }
}