/* ============================================
   Dr. Hair Secret · Pillar Page — Female Hair Loss
   Uses main site design system (css/style.css)
   Extends with pillar-* classes only
   ============================================ */

/* HERO */
.pillar-hero {
  position: relative;
  overflow: hidden;
  padding: 0 !important;
  min-height: 68vh;
  display: flex;
  align-items: center;
  color: #fff;
}
.pillar-hero__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}
.pillar-hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(28,42,29,0.55) 0%, rgba(28,42,29,0.35) 50%, rgba(28,42,29,0.72) 100%);
  z-index: 1;
}
.pillar-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 120px;
  padding-bottom: 100px;
}
.pillar-hero__eyebrow {
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.32em;
  margin-bottom: 20px;
}
.pillar-hero__title {
  color: #fff !important;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.pillar-hero__lead {
  color: rgba(255,255,255,0.92);
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.15rem);
  margin-top: 12px;
}
.pillar-hero__badges {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 32px;
}
.pillar-hero__badge {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 18px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.pillar-hero__badge span {
  font-family: var(--font-en);
  font-weight: 600;
  color: var(--color-primary-light);
  font-size: 1rem;
}
.pillar-breadcrumb {
  margin-top: 40px;
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  font-family: var(--font-en);
}
.pillar-breadcrumb a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
}
.pillar-breadcrumb a:hover { color: var(--color-primary-light); }
.pillar-breadcrumb span { margin: 0 8px; color: rgba(255,255,255,0.5); }

/* QUOTE */
.pillar-quote {
  position: relative;
  margin: 40px 0 32px;
  padding: 32px 40px;
  background: var(--color-primary-pale);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.pillar-quote__mark {
  position: absolute;
  top: -8px; left: 20px;
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-primary);
  line-height: 1;
  font-weight: 700;
}
.pillar-quote p {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

/* STATS */
.pillar-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.pillar-stat {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.pillar-stat:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.pillar-stat__num {
  display: block;
  font-family: var(--font-en);
  font-weight: 500;
  font-size: clamp(2rem, 1.5rem + 1.5vw, 3rem);
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
  line-height: 1;
}
.pillar-stat__slash { color: var(--color-primary); font-weight: 400; margin: 0 2px; }
.pillar-stat__unit {
  font-size: 0.55em;
  color: var(--color-primary);
  margin-left: 2px;
  vertical-align: baseline;
}
.pillar-stat__label {
  margin-top: 14px;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}
.pillar-stats__note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.82rem;
  color: var(--color-text-faint);
}
.pillar-stats__note a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-primary-light);
}

/* CAUSE SECTIONS */
.pillar-cause {
  padding-top: 80px;
  padding-bottom: 80px;
}
.pillar-cause--band {
  background: var(--color-primary-pale);
}
.pillar-cause__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 64px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.pillar-cause__grid--reversed .pillar-cause__media { order: 2; }
.pillar-cause__grid--reversed .pillar-cause__text { order: 1; }
.pillar-cause__media {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.pillar-cause__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s;
}
.pillar-cause__media:hover img { transform: scale(1.03); }
.pillar-cause__no {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 3rem;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.pillar-cause__title {
  margin: 0 0 4px !important;
  font-size: clamp(1.6rem, 1.2rem + 1vw, 2.2rem) !important;
  color: var(--color-primary-dark) !important;
}
.pillar-cause__en {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 400;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin: 0 0 24px;
}
.pillar-cause__facts {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  border-top: 1px solid var(--color-divider);
}
.pillar-cause__facts li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-divider);
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  align-items: baseline;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text);
}
.pillar-cause__facts li span {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  text-transform: uppercase;
  padding-top: 2px;
}
.pillar-cause__text p {
  margin: 16px 0;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--color-text);
}
.pillar-cause__text p a {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-primary-light);
}

/* NINA PANEL */
.pillar-nina {
  background: #fff;
  border-left: 3px solid var(--color-primary);
  padding: 20px 24px;
  margin: 28px 0 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.pillar-cause--band .pillar-nina { background: rgba(255,255,255,0.6); }
.pillar-nina__tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}
.pillar-nina p {
  margin: 0 !important;
  font-size: 0.92rem !important;
  line-height: 1.7 !important;
  color: var(--color-text) !important;
}

/* AI SCALP REPORT */
.pillar-report {
  padding-top: 80px;
  padding-bottom: 80px;
  background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-surface-darker) 100%);
  color: #fff;
}
.pillar-report__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.pillar-report__media {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.pillar-report__media img {
  width: 100%; height: 100%; object-fit: cover;
}
.pillar-report .ed-eyebrow {
  color: var(--color-primary-light);
}
.pillar-report__title {
  color: #fff !important;
  margin-top: 14px;
  margin-bottom: 16px;
}
.pillar-report .ed-lead-body {
  color: rgba(255,255,255,0.85);
}
.pillar-report__points {
  list-style: none;
  padding: 0;
  margin: 32px 0;
}
.pillar-report__points li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.pillar-report__points li:last-child { border-bottom: none; }
.pillar-report__num {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 2rem;
  color: var(--color-primary-light);
  line-height: 1;
}
.pillar-report__points strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 4px;
  font-weight: 500;
}
.pillar-report__points span {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  line-height: 1.55;
}
.pillar-report .ed-btn--dark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.pillar-report .ed-btn--dark:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* METRICS GRID (case study) */
.pillar-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}
.pillar-metric {
  padding: 24px 20px;
  background: #fff;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  text-align: center;
}
.pillar-metric span {
  display: block;
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.pillar-metric strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
}

/* Case study title control */
.pillar-br-mobile { display: none; }
.pillar-nobr { white-space: nowrap; }
@media (max-width: 480px) {
  .pillar-br-mobile { display: inline; }
}

/* FAQ */
.pillar-faq details {
  border-bottom: 1px solid var(--color-divider);
  padding: 20px 0;
}
.pillar-faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  padding-right: 40px;
  position: relative;
  list-style: none;
  outline: none;
}
.pillar-faq summary::-webkit-details-marker { display: none; }
.pillar-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-primary);
  transition: transform var(--transition);
}
.pillar-faq details[open] summary::after {
  content: "−";
  color: var(--color-primary-dark);
}
.pillar-faq p {
  margin: 16px 0 8px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.pillar-faq p a {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-primary-light);
}

/* CTA */
.pillar-cta {
  position: relative;
  padding: 100px 0 !important;
  overflow: hidden;
  color: #fff;
}
.pillar-cta__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.pillar-cta__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(47,102,49,0.85) 0%, rgba(28,42,29,0.9) 100%);
  z-index: 1;
}
.pillar-cta__inner {
  position: relative;
  z-index: 2;
}
.pillar-cta__eyebrow {
  color: var(--color-primary-light);
}
.pillar-cta__title {
  color: #fff !important;
  margin-top: 14px;
  margin-bottom: 20px;
}
.pillar-cta__lead {
  color: rgba(255,255,255,0.88);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto;
}
.pillar-cta__note {
  margin-top: 20px;
  color: rgba(255,255,255,0.65);
  font-size: 0.82rem;
}
.pillar-cta .ed-btn--dark {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.pillar-cta .ed-btn--dark:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.pillar-cta .ed-btn--outline {
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.pillar-cta .ed-btn--outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ============================================
   RESPONSIVE (Mobile ≤768px)
   ============================================ */
@media (max-width: 768px) {
  .pillar-hero {
    min-height: 60vh;
  }
  .pillar-hero__inner {
    padding-top: 90px;
    padding-bottom: 70px;
  }
  .pillar-hero__title {
    font-size: clamp(2rem, 1.5rem + 3vw, 2.8rem) !important;
  }
  .pillar-hero__eyebrow {
    font-size: 0.65rem !important;
    letter-spacing: 0.28em !important;
  }
  .pillar-hero__badges {
    gap: 8px;
    margin-top: 24px;
  }
  .pillar-hero__badge {
    font-size: 0.78rem;
    padding: 8px 14px;
  }
  .pillar-breadcrumb { margin-top: 24px; font-size: 0.72rem; }

  .pillar-quote {
    padding: 24px 24px 20px;
    margin: 24px 0;
  }
  .pillar-quote__mark { font-size: 3rem; }
  .pillar-quote p { font-size: 1rem; }

  .pillar-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .pillar-stat { padding: 24px 16px; }

  .pillar-cause,
  .pillar-cause--band {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .pillar-cause__grid,
  .pillar-cause__grid--reversed {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pillar-cause__grid--reversed .pillar-cause__media { order: 1; }
  .pillar-cause__grid--reversed .pillar-cause__text { order: 2; }
  .pillar-cause__media {
    aspect-ratio: 4 / 3;
  }
  .pillar-cause__no { font-size: 2.4rem; }
  .pillar-cause__facts li {
    grid-template-columns: 90px 1fr;
    gap: 12px;
    font-size: 0.88rem;
  }
  .pillar-cause__facts li span { font-size: 0.62rem; }

  .pillar-report {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .pillar-report__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pillar-report__media {
    aspect-ratio: 4 / 3;
    max-width: 480px;
    margin: 0 auto;
  }

  .pillar-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .pillar-metric { padding: 18px 14px; }
  .pillar-metric strong { font-size: 0.98rem; }

  .pillar-faq summary { font-size: 0.98rem; padding-right: 32px; }

  .pillar-cta { padding: 70px 0 !important; }
  .pillar-cta__title { font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2rem) !important; }
  .pillar-cta__lead { font-size: 0.95rem; }
  .pillar-cta .ed-cta-row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 480px) {
  .pillar-cause__facts li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* ============ RELATED READS · 延伸閱讀 (跨 pillar 共用) ============ */
.pillar-related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 8px;
}

.pillar-related__card {
  display: block;
  background: var(--color-white);
  border: 1px solid rgba(47, 102, 49, 0.12);
  border-radius: 6px;
  padding: 28px 24px;
  text-align: left;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.pillar-related__card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px rgba(47, 102, 49, 0.1);
}

.pillar-related__eyebrow {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.pillar-related__card strong {
  display: block;
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.pillar-related__card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 900px) {
  .pillar-related { grid-template-columns: 1fr; gap: 14px; }
  .pillar-related__card { padding: 22px 20px; }
}