/* ===================================
   STRETCH&STRENGTH - Luxury Salon Design
   Relaxing & Elegant
   =================================== */

: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;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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);
}

.header:not(.scrolled) .logo img {
  /* ロゴ画像はそのまま表示 */
}

.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;
}

.header:not(.scrolled) .nav a {
  color: var(--white);
}

.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;
}

.header:not(.scrolled) .nav-cta {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.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);
}

.header:not(.scrolled) .menu-toggle span {
  background: var(--white);
}

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

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

/* ===================================
   Hero
   =================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(61, 61, 61, 0.3) 0%,
    rgba(61, 61, 61, 0.4) 100%
  );
}

.hero-content {
  position: relative;
  text-align: center;
  color: var(--white);
  padding: 0 24px;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.4em;
  margin-bottom: 28px;
  opacity: 0.9;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.15em;
}

.hero-scroll {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-scroll span {
  font-family: var(--font-serif);
  font-size: 11px;
  letter-spacing: 0.2em;
  opacity: 0.7;
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* ===================================
   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;
}

/* ===================================
   Concept
   =================================== */
.concept {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

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

.concept-title {
  font-family: var(--font-sans);
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 300;
  line-height: 2;
  letter-spacing: 0.1em;
  margin-bottom: 32px;
}

.concept-text {
  font-size: 15px;
  line-height: 2.4;
  color: var(--charcoal-light);
  margin-bottom: 32px;
  margin-top: 32px;
}

.concept-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding-top: 48px;
  border-top: 1px solid var(--beige-dark);
}

.feature {
  text-align: center;
}

.feature-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--sage);
  margin-bottom: 16px;
}

.feature h3 {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.feature p {
  font-size: 13px;
  color: var(--charcoal-light);
  line-height: 1.9;
}

/* ===================================
   Service
   =================================== */
.service {
  padding: var(--section-padding) 0;
  background: var(--beige);
}

.service-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
  padding: 0 48px;
}

.service-title {
  font-family: var(--font-sans);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}

.service-text {
  font-size: 14px;
  line-height: 2.2;
  color: var(--charcoal-light);
  margin-bottom: 40px;
}

.btn {
  display: inline-block;
  padding: 16px 48px;
  background: transparent;
  color: var(--charcoal);
  font-size: 13px;
  letter-spacing: 0.15em;
  border: 1px solid var(--charcoal);
  transition: var(--transition);
}

.btn:hover {
  background: var(--charcoal);
  color: var(--white);
}

.service-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* ===================================
   Space
   =================================== */
.space {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

.space-header {
  text-align: center;
  margin-bottom: 56px;
}

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

.space-gallery {
  max-width: 1200px;
  margin: 48px auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.space-item {
  overflow: hidden;
}

.space-item img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.space-item:hover img {
  transform: scale(1.05);
}

/* ===================================
   Blog
   =================================== */
.blog {
  padding: var(--section-padding) 24px;
  background: var(--beige);
}

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

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

.blog-posts {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
}

.blog-post {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--cream);
  text-align: left;
  transition: var(--transition);
}

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

.blog-post-image {
  width: 120px;
  height: 80px;
  object-fit: cover;
  flex-shrink: 0;
}

.blog-post-content {
  flex: 1;
}

.blog-post-date {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sage);
  margin-bottom: 8px;
}

.blog-post-title {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--charcoal);
}

/* ===================================
   CTA
   =================================== */
.cta {
  padding: var(--section-padding) 24px;
  background: var(--sage);
}

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

.cta-label {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.35em;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
}

.cta-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;
}

.cta-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);
}

/* ===================================
   Access
   =================================== */
.access {
  padding: var(--section-padding) 24px;
  background: var(--beige);
}

.access-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}

.access-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 40px;
}

.access-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.access-item {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--beige-dark);
}

.access-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.access-item dt {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--sage);
  margin-bottom: 10px;
}

.access-item dd {
  font-size: 14px;
  line-height: 1.9;
}

.access-map {
  height: 380px;
  background: var(--beige-dark);
  border-radius: 4px;
  overflow: hidden;
}

.access-map iframe {
  width: 100%;
  height: 100%;
}

/* ===================================
   Contact
   =================================== */
.contact {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

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

.contact-title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
}

.contact-text {
  font-size: 14px;
  line-height: 2;
  color: var(--charcoal-light);
  margin-bottom: 48px;
}

.contact-sns {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.sns-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--beige);
  border: 1px solid var(--beige-dark);
  font-size: 13px;
  letter-spacing: 0.1em;
  transition: var(--transition);
}

.sns-link:hover {
  background: var(--sage);
  border-color: var(--sage);
  color: var(--white);
}

.sns-link svg {
  width: 18px;
  height: 18px;
}

.sns-link.sns-line {
  background: #06C755;
  border-color: #06C755;
  color: var(--white);
}

.sns-link.sns-line:hover {
  background: #05a847;
  border-color: #05a847;
}

/* ===================================
   Contact Section (with SNS images)
   =================================== */
.contact-section {
  padding: var(--section-padding) 24px;
  background: var(--cream);
}

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

.contact-section-title {
  font-family: var(--font-sans);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}

.contact-section-text {
  font-size: 14px;
  line-height: 2.2;
  color: var(--charcoal-light);
  margin-bottom: 56px;
}

.contact-sns-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.contact-sns-card {
  display: block;
  overflow: hidden;
  position: relative;
  background: var(--cream);
  transition: var(--transition);
}

.contact-sns-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.contact-sns-card-image {
  overflow: hidden;
  aspect-ratio: 1 / 1;
}

.contact-sns-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.contact-sns-card:hover .contact-sns-card-image img {
  transform: scale(1.05);
}

.contact-sns-card-label {
  padding: 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--charcoal);
}

/* ===================================
   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-tagline {
  font-family: var(--font-serif);
  font-size: 11px;
  letter-spacing: 0.2em;
  opacity: 0.5;
}

.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);
}

.space-item.animate {
  transition-delay: calc(var(--i, 0) * 0.15s);
}

.space-item:nth-child(1) { --i: 0; }
.space-item:nth-child(2) { --i: 1; }
.space-item:nth-child(3) { --i: 2; }

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

  .service-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 0 24px;
  }

  .service-image {
    order: -1;
  }

  .service-image img {
    height: 320px;
  }

  .contact-sns-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .space-gallery {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .space-item img {
    height: 280px;
  }

  .access-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .access-map {
    height: 300px;
  }

  .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;
  }

  .hero {
    min-height: 600px;
  }

  .concept-features {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .feature {
    padding-bottom: 36px;
    border-bottom: 1px solid var(--beige-dark);
  }

  .feature:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 24px;
    line-height: 2;
  }

  .hero-subtitle {
    font-size: 12px;
  }

  .concept-title,
  .service-title {
    font-size: 22px;
  }

  .btn {
    padding: 14px 36px;
    font-size: 12px;
  }

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

  .contact-sns {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .sns-link {
    width: 100%;
    max-width: 280px;
    justify-content: center;
    padding: 12px 24px;
  }

  .contact-sns-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .footer {
    padding: 48px 24px 24px;
  }
}