/* ===================================
   STRETCH&STRENGTH - Service Page
   Luxury Salon Design (matching index)
   =================================== */

:root {
  /* Calming Color Palette */
  --sage: #a8b5a0;
  --sage-light: #c5cebf;
  --sage-dark: #8a9a80;
  --beige: #f5f1eb;
  --beige-dark: #e8e2d9;
  --cream: #fdfcfa;
  --gold: #b8a88a;
  --gold-light: #d4c9b5;
  --charcoal: #3d3d3d;
  --charcoal-light: #5a5a5a;
  --white: #ffffff;

  /* Typography */
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans: 'Noto Serif JP', 'Hiragino Mincho ProN', serif;

  /* Spacing */
  --section-padding: clamp(80px, 12vw, 140px);

  /* Transitions */
  --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--charcoal);
  line-height: 1.8;
  background: var(--cream);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===================================
   Header
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(253, 252, 250, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.05);
}

.logo img {
  height: 32px;
  width: auto;
  transition: var(--transition);
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav a {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.1em;
  transition: var(--transition);
  position: relative;
}

.nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--sage);
  transition: var(--transition);
}

.nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 12px 28px;
  background: var(--sage);
  color: var(--white) !important;
  border-radius: 2px;
  font-size: 13px !important;
  letter-spacing: 0.15em;
}

.nav-cta:hover {
  background: var(--sage-dark);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--charcoal);
  transition: var(--transition);
}

.menu-toggle.active span:first-child {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:last-child {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ===================================
   Section Common
   =================================== */
.section-label {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.35em;
  color: var(--sage-dark);
  margin-bottom: 24px;
}

/* ===================================
   Page Title
   =================================== */

/* ===================================
   Message Section
   =================================== */
.message-sec {
  padding: 60px 24px var(--section-padding);
  background: var(--cream);
}

.message-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.highlight-word {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 400;
  color: var(--charcoal);
  margin: 40px 0;
  line-height: 1.8;
  letter-spacing: 0.1em;
}

.normal-word {
  font-size: 15px;
  color: var(--charcoal-light);
  line-height: 2.4;
  margin: 20px 0;
}

/* ===================================
   Program Section
   =================================== */
.program-sec {
  padding: var(--section-padding) 24px;
  background: var(--beige);
}

.program-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.program-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 56px;
}

.for-pc { display: block; }
.for-sp { display: none; }

.grid-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}

.grid-block-1,
.grid-block-2 {
  aspect-ratio: 1 / 1;
  position: relative;
  overflow: hidden;
}

.grid-block-1 {
  background: var(--cream);
  margin: 0 0 0 12%;
}

.grid-block-2 {
  background: var(--cream);
  margin: 0 12% 0 0;
}

.training-image,
.stretch-image {
  background-size: cover;
  background-position: center;
  transition: filter var(--transition-slow);
}

.training-image {
  background-image: url('../images/training-img.jpg');
  filter: grayscale(30%);
}

.stretch-image {
  background-image: url('../images/stretch-img.jpg');
  filter: grayscale(30%);
}

.training-image:hover,
.stretch-image:hover {
  filter: grayscale(0%);
}

.centered-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 48px);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.centered-text::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.6);
  margin-top: 12px;
}

/* Training text blocks */
.train-summary {
  position: absolute;
  top: 16.5%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  font-size: clamp(14px, 1.55vw, 19px);
  font-weight: 400;
  color: var(--charcoal);
  text-align: center;
  letter-spacing: 0.05em;
}

.grid-block-2:has(.train-summary)::before {
  content: '';
  position: absolute;
  top: 33.3%;
  left: 50%;
  transform: translateX(-50%);
  width: 85%;
  height: 1px;
  background: var(--sage);
  z-index: 1;
}

.train-description {
  position: absolute;
  top: 66.5%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  font-size: clamp(11px, 1.15vw, 14px);
  color: var(--charcoal-light);
  text-align: center;
  line-height: 1.75;
}

/* Stretch text blocks */
.stretch-summary {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  font-size: clamp(14px, 1.55vw, 19px);
  font-weight: 400;
  color: var(--charcoal);
  text-align: center;
  letter-spacing: 0.05em;
}

.grid-block-1:has(.stretch-summary)::before {
  content: '';
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  width: 85%;
  height: 1px;
  background: var(--sage);
  z-index: 1;
}

.stretch-description {
  position: absolute;
  top: 65%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  font-size: clamp(11px, 1.15vw, 14px);
  color: var(--charcoal-light);
  text-align: center;
  line-height: 1.75;
}

/* ===================================
   Plan Section
   =================================== */
.plan-sec {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

.plan-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.plan-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 56px;
}

.content-blocks {
  display: flex;
  justify-content: center;
  gap: 32px;
  width: 100%;
  margin-bottom: 56px;
}

.light-course,
.advance-course {
  background: var(--beige);
  padding: 48px 36px;
  width: 100%;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--beige-dark);
}

.light-course:hover,
.advance-course:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.course-label {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--sage-dark);
  margin-bottom: 8px;
}

.course-name {
  font-size: 13px;
  color: var(--charcoal-light);
  margin: 0 0 24px 0;
}

.charge {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 500;
  color: var(--charcoal);
  margin: 20px 0;
  letter-spacing: 0.05em;
}

.course-desc {
  font-size: 14px;
  color: var(--charcoal-light);
  line-height: 2;
  margin: 0;
}

.price-list {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.price-list img {
  width: 100%;
}

/* ===================================
   Session Section
   =================================== */
.session-sec {
  padding: var(--section-padding) 24px;
  background: var(--beige);
}

.session-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.session-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 48px;
}

.session-step {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  text-align: left;
}

.step-num {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--sage-dark);
  min-width: 40px;
  letter-spacing: 0.05em;
}

.step-line {
  width: 2px;
  height: 36px;
  background: var(--sage-light);
}

.step-text {
  font-size: 15px;
  font-weight: 400;
  color: var(--charcoal);
  letter-spacing: 0.05em;
}

.session-note {
  font-size: 13px;
  color: var(--charcoal-light);
  margin: 28px 0;
}

/* ===================================
   Reservation Section
   =================================== */
.reservation-sec {
  padding: var(--section-padding) 24px;
  background: var(--sage);
}

.reservation-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.reservation-label {
  color: rgba(255, 255, 255, 0.85) !important;
}

.reservation-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.reservation-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px;
}

.cta-button {
  display: inline-block;
  padding: 18px 56px;
  background: var(--white);
  color: var(--sage-dark);
  font-size: 14px;
  letter-spacing: 0.15em;
  transition: var(--transition);
}

.cta-button:hover {
  background: var(--cream);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* ===================================
   Profile Section
   =================================== */
.profile-sec {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

.profile-inner {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.profile-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 56px;
}

.profile-container {
  display: flex;
  align-items: stretch;
  gap: 56px;
  text-align: left;
}

.profile-image {
  flex: 1;
  overflow: hidden;
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.trainer-name {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 400;
  color: var(--charcoal);
  margin: 0 0 4px 0;
  letter-spacing: 0.1em;
}

.trainer-name-en {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.15em;
  color: var(--sage);
  margin: 0 0 32px 0;
}

.trainer-detail {
  margin-bottom: 20px;
}

.trainer-detail:last-child {
  margin-bottom: 0;
}

.trainer-detail h4 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--sage-dark);
  margin: 0 0 8px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--beige-dark);
}

.trainer-detail p {
  font-size: 14px;
  color: var(--charcoal-light);
  line-height: 1.9;
  margin: 0;
}

/* ===================================
   Q&A Section
   =================================== */
.qa-sec {
  padding: var(--section-padding) 24px;
  background: var(--beige);
}

.qa-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.qa-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 48px;
}

.accordion-hidden {
  display: none;
}

.accordion-open {
  display: flex;
  align-items: center;
  background: var(--cream);
  cursor: pointer;
  margin: 10px 0;
  width: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--beige-dark);
}

.accordion-open:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.question-num {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 60px;
  height: 100%;
  padding: 20px;
  background: var(--sage);
  color: var(--white);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.05em;
}

.question-txt {
  flex: 1;
  padding: 20px;
  font-size: 15px;
  font-weight: 400;
  color: var(--charcoal);
  margin: 0;
  text-align: left;
}

.accordion-open::before,
.accordion-open::after {
  content: '';
  width: 14px;
  height: 1px;
  background: var(--sage);
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  transition: transform var(--transition);
}

.accordion-open::after {
  transform: translateY(-50%) rotate(90deg);
}

.accordion-hidden:checked + .accordion-open::after {
  transform: translateY(-50%) rotate(0);
}

.accordion-inner {
  display: flex;
  justify-content: center;
  width: 100%;
  height: 0;
  padding: 0 20px;
  opacity: 0;
  font-size: 14px;
  color: var(--charcoal-light);
  line-height: 2;
  transition: all var(--transition);
  overflow: hidden;
  text-align: left;
}

.accordion-hidden:checked + .accordion-open + .accordion-inner {
  height: auto;
  opacity: 1;
  padding: 24px 28px;
}

/* ===================================
   Footer
   =================================== */
.footer {
  padding: 64px 48px 32px;
  background: var(--charcoal);
  color: var(--white);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 64px;
  align-items: start;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  height: 28px;
  width: auto;
  /* ロゴ画像はそのまま表示 */
  opacity: 0.8;
  margin-bottom: 12px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-nav a {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  opacity: 0.7;
  transition: var(--transition);
}

.footer-nav a:hover {
  opacity: 1;
}

.footer-contact p {
  font-size: 11px;
  letter-spacing: 0.15em;
  opacity: 0.5;
  margin-bottom: 12px;
}

.footer-line {
  display: inline-block;
  padding: 10px 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 12px;
  letter-spacing: 0.1em;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-line:hover {
  background: rgba(255, 255, 255, 0.1);
  opacity: 1;
}

.footer-bottom {
  max-width: 1100px;
  margin: 24px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-sns a {
  color: var(--white);
  opacity: 0.5;
  transition: var(--transition);
}

.footer-sns a:hover {
  opacity: 1;
}

.footer-copy {
  font-size: 11px;
  letter-spacing: 0.1em;
  opacity: 0.4;
}

/* ===================================
   Animations
   =================================== */
.animate {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 960px) {
  .header {
    padding: 20px 24px;
  }

  .grid-section {
    gap: 16px;
  }

  .grid-block-1 {
    margin: 0;
  }

  .grid-block-2 {
    margin: 0;
  }

  .profile-container {
    flex-direction: column;
    gap: 40px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .footer-nav {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    background: var(--cream);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav.active {
    opacity: 1;
    visibility: visible;
  }

  .nav a {
    font-size: 18px;
    color: var(--charcoal) !important;
  }

  .nav-cta {
    margin-top: 20px;
    background: var(--sage) !important;
    color: var(--white) !important;
  }

  /* Message */
  .message-sec {
    padding: 140px 20px var(--section-padding);
  }

  /* Program */
  .for-pc { display: none; }
  .for-sp { display: block; }

  .grid-section {
    grid-template-columns: 1fr;
    width: 90%;
    gap: 16px;
  }

  .grid-block-1,
  .grid-block-2 {
    margin: 0;
  }

  /* テキストブロックはaspect-ratioを解除し、テキストを自然配置 */
  .grid-block-2:not(.stretch-image),
  .grid-block-1:not(.training-image) {
    aspect-ratio: auto;
    padding: 32px 20px;
  }

  .centered-text {
    font-size: 28px;
  }

  .train-summary,
  .stretch-summary {
    position: static;
    transform: none;
    width: 100%;
    font-size: 15px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--sage);
  }

  .train-description,
  .stretch-description {
    position: static;
    transform: none;
    width: 100%;
    font-size: 13px;
    line-height: 1.8;
  }

  /* テキストブロックの::before区切り線は不要（border-bottomで代替） */
  .grid-block-2:has(.train-summary)::before,
  .grid-block-1:has(.stretch-summary)::before {
    display: none;
  }

  /* Plan */
  .content-blocks {
    flex-direction: column;
    gap: 20px;
  }

  .light-course,
  .advance-course {
    padding: 36px 24px;
  }

  /* Profile */
  .profile-container {
    padding: 0;
  }

  .trainer-name {
    font-size: 22px;
    margin-top: 16px;
  }

  /* Q&A */
  .accordion-open {
    margin: 8px 0;
  }

  .question-num {
    min-width: 50px;
    padding: 16px;
    font-size: 12px;
  }

  .question-txt {
    font-size: 13px;
    padding: 16px;
  }

  .accordion-open::before,
  .accordion-open::after {
    width: 12px;
    right: 16px;
  }

  .accordion-inner {
    font-size: 13px;
  }

  /* Footer */
  .footer {
    padding: 48px 24px 24px;
  }
}

@media (max-width: 480px) {
  .highlight-word {
    font-size: 20px;
  }

  .normal-word {
    font-size: 14px;
  }

  .charge {
    font-size: 28px;
  }

  .cta-button {
    padding: 16px 40px;
    font-size: 13px;
  }
}