/* =========================================
   SHIRO SPORTS 整体院 — Neural Page Styles
   ========================================= */

/* === NEURAL HERO === */
.neural-hero {
  position: relative;
  height: 52vh;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.neural-hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/treatment.jpg') center 30% / cover no-repeat;
}

.neural-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 22, 14, 0.72) 0%,
    rgba(10, 22, 14, 0.5) 100%
  );
}

.neural-hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 24px;
  margin-top: var(--header-h);
}

.neural-hero-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.8rem;
  letter-spacing: 0.42em;
  color: var(--gold);
  margin-bottom: 14px;
  display: block;
}

.neural-hero-title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.18em;
  margin-bottom: 20px;
}

.neural-hero-deco {
  width: 40px; height: 1.5px;
  background: var(--gold);
  margin: 0 auto 20px;
}

/* === BREADCRUMB === */
.breadcrumb ol {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding: 0;
}
.breadcrumb li {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
}
.breadcrumb li + li::before {
  content: '›';
  margin-right: 8px;
  color: rgba(255,255,255,0.35);
}
.breadcrumb a {
  color: rgba(255,255,255,0.65);
  transition: color 0.3s;
}
.breadcrumb a:hover { color: var(--gold); }

/* === SHARED INNER WRAPPER === */
.neural-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

/* === INTRO SECTION === */
.neural-intro {
  padding: 100px 0 80px;
  background: var(--cream);
}

.neural-intro-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  align-items: start;
  margin-top: 48px;
}

.neural-intro-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.neural-lead-text {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--deep-forest);
  line-height: 1.85;
  letter-spacing: 0.06em;
}

.neural-intro-text p {
  font-size: 0.93rem;
  color: var(--text-light);
  line-height: 2.1;
  letter-spacing: 0.05em;
}

/* Point Cards */
.neural-intro-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.neural-point-card {
  background: var(--white);
  border: 1px solid var(--stone);
  border-radius: 4px;
  padding: 28px 24px;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.neural-point-card:hover {
  box-shadow: 0 8px 32px rgba(26,46,32,0.1);
  border-color: var(--sage);
}

.neural-point-icon {
  font-size: 1.6rem;
  color: var(--sage);
  margin-bottom: 14px;
}

.neural-point-card h3 {
  font-family: 'Shippori Mincho', serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--deep-forest);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.neural-point-card p {
  font-size: 0.84rem;
  color: var(--text-light);
  line-height: 1.85;
  letter-spacing: 0.04em;
}

/* === MECHANISM SECTION === */
.neural-mechanism {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.mechanism-bg {
  position: absolute;
  inset: 0;
  background: url('../images/hero-waterfall.jpg?v=2') center 60% / cover no-repeat;
  filter: saturate(0.5) brightness(0.4);
}

.mechanism-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 22, 14, 0.82);
}

.mechanism-inner {
  position: relative;
  z-index: 2;
}

/* Steps */
.mechanism-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 48px;
  margin-bottom: 72px;
  border-left: 2px solid rgba(201,168,76,0.35);
  padding-left: 40px;
}

.mech-step {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  position: relative;
}
.mech-step:last-child { border-bottom: none; }

/* Dot on the vertical line */
.mech-step::before {
  content: '';
  position: absolute;
  left: -49px;
  top: 38px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--deep-forest);
}

.mech-step-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: 0.05em;
  line-height: 1;
  flex-shrink: 0;
  width: 56px;
}

.mech-step-body {
  flex: 1;
}

.mech-step-body h3 {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.mech-step-body p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.95;
  letter-spacing: 0.04em;
}

/* Body Knowledge block */
.body-knowledge {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 4px;
  padding: 48px 40px;
  backdrop-filter: blur(4px);
}

.bk-header {
  text-align: center;
  margin-bottom: 32px;
}

.bk-tag {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}

.bk-title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.bk-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.85;
  letter-spacing: 0.05em;
}

/* === VIDEO WRAPPER (responsive 16:9) === */
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 4px;
}
.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* === CASE STUDIES === */
.neural-cases {
  padding: 100px 0 80px;
  background: var(--white);
}

.cases-lead {
  font-size: 0.9rem;
  color: var(--text-light);
  text-align: center;
  letter-spacing: 0.06em;
  margin-top: 12px;
  line-height: 1.85;
}

.case-card {
  background: var(--cream);
  border: 1px solid var(--stone);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 40px;
  box-shadow: 0 4px 24px rgba(26,46,32,0.06);
  transition: box-shadow 0.3s;
}
.case-card:hover {
  box-shadow: 0 8px 40px rgba(26,46,32,0.12);
}

.case-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 32px;
  background: var(--deep-forest);
}

.case-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--gold);
  flex-shrink: 0;
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.3);
  padding: 4px 12px;
  border-radius: 2px;
}

.case-title-block {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.case-title {
  font-family: 'Shippori Mincho', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.1em;
}

.case-result {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.case-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 36px 32px;
  align-items: start;
}

.case-text p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 2;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.case-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.case-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 1.7;
}

.case-points .fa-check-circle {
  color: var(--sage);
  flex-shrink: 0;
  margin-top: 3px;
}

/* === NEURAL CTA === */
.neural-cta {
  background: var(--deep-forest);
  padding: 80px 0;
  text-align: center;
}

.neural-cta-inner {
  max-width: 700px;
}

.neural-cta-label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.75rem;
  letter-spacing: 0.38em;
  color: var(--gold);
  margin-bottom: 12px;
}

.neural-cta-title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.neural-cta-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.68);
  line-height: 2;
  letter-spacing: 0.05em;
  margin-bottom: 36px;
}

.neural-cta-btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.neural-cta-hours {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.06em;
  line-height: 1.8;
}

/* btn-tel — also used on about / genome pages */
.btn-tel {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: var(--white);
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  border-radius: 2px;
  transition: border-color 0.35s, background 0.35s;
}
.btn-tel:hover {
  border-color: var(--gold);
  background: rgba(201,168,76,0.12);
}
.btn-tel i { color: var(--gold); }

/* === REVEAL ANIMATION === */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 960px) {
  .neural-intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .neural-intro-side {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .neural-point-card {
    flex: 1 1 calc(50% - 10px);
    min-width: 220px;
  }
  .case-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .neural-intro { padding: 72px 0 56px; }
  .neural-inner { padding: 0 20px; }
  .neural-mechanism { padding: 72px 0; }

  .mechanism-steps {
    border-left: none;
    padding-left: 0;
  }
  .mech-step {
    flex-direction: column;
    gap: 8px;
    padding: 24px 0;
  }
  .mech-step::before { display: none; }
  .mech-step-num { font-size: 1.6rem; }

  .body-knowledge { padding: 32px 20px; }

  .neural-cases { padding: 72px 0 56px; }
  .case-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 20px;
  }
  .case-body { padding: 24px 20px; }

  .neural-cta { padding: 60px 0; }
  .neural-cta-btns { flex-direction: column; gap: 14px; }
  .btn-tel { width: 100%; justify-content: center; }

  .neural-intro-side { flex-direction: column; }
  .neural-point-card { flex: 1 1 100%; }
}