/* ===================================
   &d'ici - Nail Care Salon
   Style Sheet
   =================================== */

/* --- CSS Custom Properties --- */
:root {
  --color-accent: #9A6E72;
  --color-accent-light: #D4A5A9;
  --color-accent-dark: #9A6E72;
  --color-header: #9BA3A8;
  --color-header-text: #FFFFFF;
  --color-bg-white: #FFFFFF;
  --color-bg-warm: #F9F7F5;
  --color-text-main: #333333;
  --color-text-sub: #666666;
  --color-text-light: #999999;
  --color-border: #E0E0E0;
  --color-overlay: rgba(0, 0, 0, 0.22);
  --font-serif: 'Cormorant Garamond', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --max-width: 1100px;
  --header-height: 70px;
  --section-padding: 100px 0;
  --section-padding-sp: 60px 0;
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section-bg-warm {
  background-color: var(--color-bg-warm);
}

.section-bg-white {
  background-color: var(--color-bg-white);
}

/* --- Typography --- */
.section-heading {
  text-align: center;
  margin-bottom: 60px;
}

.section-heading .en {
  display: block;
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  line-height: 1.2;
  margin-bottom: 8px;
}

.section-heading .ja {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-sub);
  letter-spacing: 0.15em;
  font-weight: 400;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-header);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.header-logo a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 300;
  font-style: normal;
  color: var(--color-header-text);
  letter-spacing: 0.08em;
}

.header-nav {
  display: flex;
  align-items: center;
}

.header-nav ul {
  display: flex;
  gap: 32px;
}

.header-nav a {
  color: var(--color-header-text);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  transition: opacity var(--transition);
}

.header-nav a:hover {
  opacity: 0.7;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  z-index: 1100;
  background: none;
  border: none;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-header-text);
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(155, 163, 168, 0.97);
  z-index: 1050;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  transition: opacity var(--transition);
}

.mobile-nav.active {
  display: flex;
  opacity: 1;
}

.mobile-nav a {
  color: var(--color-header-text);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}

/* --- Hero --- */
.hero {
  position: relative;
  height: 85vh;
  min-height: 500px;
  max-height: 800px;
  margin-top: var(--header-height);
  overflow: hidden;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-text {
  text-align: center;
  color: #fff;
  padding: 0 20px;
}

.hero-text .en-large {
  display: block;
  font-family: var(--font-serif);
  font-size: 4.5rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.1em;
  line-height: 1.1;
  margin-bottom: 20px;
  opacity: 0.85;
}

.hero-text .ja-main {
  display: block;
  font-size: 1.5rem;
  letter-spacing: 0.2em;
  font-weight: 300;
  margin-bottom: 10px;
}

.hero-text .ja-sub {
  display: block;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  font-weight: 300;
  opacity: 0.85;
}

/* Sub-page hero */
.hero-sub {
  height: 45vh;
  min-height: 300px;
  max-height: 450px;
}

/* Sub-page hero without image */
.hero-no-image {
  height: auto;
  min-height: 0;
  max-height: none;
  background-color: var(--color-bg-warm);
}

.hero-no-image .hero-img {
  display: none;
}

.hero-no-image .hero-overlay {
  position: relative;
  background: none;
  padding: 80px 20px 60px;
}

.hero-no-image .hero-text {
  color: var(--color-text-main);
}

.hero-no-image .hero-text .en-large {
  color: var(--color-accent);
  opacity: 1;
}

.hero-no-image .hero-text .ja-main {
  color: var(--color-accent-dark);
}

.hero-no-image .hero-text .ja-sub {
  color: var(--color-text-sub);
  opacity: 1;
}

/* --- Section --- */
.section {
  padding: var(--section-padding);
}

/* --- Service Cards (Top page) --- */
.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--color-bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.service-card-img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  object-position: center;
  background-color: #f5f0eb;
}

.service-card-body {
  padding: 28px 24px;
  text-align: center;
}

.service-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.service-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-card-link {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
  letter-spacing: 0.05em;
  transition: opacity var(--transition);
}

.service-card-link:hover {
  opacity: 0.7;
}

/* --- Features --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.feature-item {
  text-align: center;
  padding: 30px 16px;
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.feature-icon::after {
  content: '';
  display: block;
}

/* Icon variations using CSS */
.feature-icon--experience::after {
  content: '13';
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.feature-icon--specialist::after {
  width: 24px;
  height: 24px;
  border: 2px solid #fff;
  border-radius: 4px;
  position: relative;
}

.feature-icon--specialist::before {
  content: '✓';
  color: #fff;
  font-size: 1.4rem;
  position: absolute;
}

.feature-icon--gentle::after {
  width: 20px;
  height: 20px;
  border: 2px solid #fff;
  border-radius: 50%;
}

.feature-icon--gentle::before {
  content: '♡';
  color: #fff;
  font-size: 1.3rem;
  position: absolute;
}

.feature-icon--personal::after {
  content: '1:1';
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

.feature-icon--counseling::after {
  content: '';
  width: 22px;
  height: 18px;
  border: 2px solid #fff;
  border-radius: 10px 10px 10px 2px;
}

.feature-title {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1.6;
}

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.gallery-grid img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 8px;
}

/* --- About / Profile --- */
.about-content {
  display: flex;
  align-items: center;
  gap: 60px;
  max-width: 850px;
  margin: 0 auto;
}

.about-photo {
  flex-shrink: 0;
  width: 240px;
  height: 300px;
  object-fit: cover;
  border-radius: 12px;
}

.about-text h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.about-text .about-name-ja {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.about-text .about-career {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 0.9rem;
  line-height: 2;
  color: var(--color-text-sub);
}

/* --- Pricing Table --- */
.pricing-block {
  max-width: 750px;
  margin: 0 auto;
}

.pricing-category {
  margin-bottom: 50px;
}

.pricing-category:last-child {
  margin-bottom: 0;
}

.pricing-category-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 24px;
  letter-spacing: 0.1em;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
}

.pricing-table tr {
  border-bottom: 1px solid var(--color-border);
}

.pricing-table td {
  padding: 14px 8px;
  font-size: 0.9rem;
}

.pricing-table td:last-child {
  text-align: right;
  white-space: nowrap;
  font-weight: 500;
  color: var(--color-text-main);
}

.pricing-table td:first-child {
  color: var(--color-text-sub);
}

.pricing-table .price-note {
  font-size: 0.75rem;
  color: var(--color-text-light);
  display: block;
  margin-top: 2px;
}

.pricing-notes {
  margin-top: 24px;
  padding: 20px;
  background-color: var(--color-bg-warm);
  border-radius: 8px;
}

.pricing-notes p {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  line-height: 1.8;
}

.pricing-foot-note {
  margin-top: 20px;
  padding: 16px 20px;
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  text-align: center;
}

.pricing-foot-note p {
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

/* Nail page intro */
.nail-intro {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.nail-intro p {
  font-size: 0.95rem;
  line-height: 2.2;
  color: var(--color-text-sub);
  margin-bottom: 12px;
}

.nail-intro .emphasis {
  display: inline-block;
  margin-top: 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent-light);
  padding-bottom: 2px;
}

/* --- Salon Info --- */
.salon-info-block {
  max-width: 650px;
  margin: 0 auto;
  text-align: center;
}

.salon-info-block .salon-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  font-weight: 300;
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.salon-info-table {
  width: 100%;
  margin: 0 auto;
  text-align: left;
}

.salon-info-table tr {
  border-bottom: 1px solid var(--color-border);
}

.salon-info-table th {
  padding: 14px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-sub);
  width: 100px;
  vertical-align: top;
}

.salon-info-table td {
  padding: 14px 16px;
  font-size: 0.9rem;
}

.salon-info-table a {
  color: var(--color-accent);
}

/* --- CTA --- */
.cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--color-bg-warm);
}

.cta-section .cta-heading {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.cta-section .cta-sub {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  margin-bottom: 30px;
}

.btn-reserve {
  display: inline-block;
  padding: 16px 52px;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border-radius: 50px;
  transition: background-color var(--transition), transform var(--transition);
}

.btn-reserve:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
}

.btn-reserve-outline {
  display: inline-block;
  padding: 14px 44px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  border-radius: 50px;
  transition: background-color var(--transition), color var(--transition);
}

.btn-reserve-outline:hover {
  background-color: var(--color-accent);
  color: #fff;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-header);
  color: var(--color-header-text);
  padding: 60px 0 30px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 300;
  font-style: normal;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-info p {
  font-size: 0.8rem;
  line-height: 1.8;
  opacity: 0.85;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 0.8rem;
  opacity: 0.85;
  transition: opacity var(--transition);
}

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

.footer-social {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.footer-social a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.icon-instagram {
  width: 18px;
  height: 18px;
  color: #fff;
}

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

.footer-copyright {
  text-align: center;
  font-size: 0.75rem;
  opacity: 0.6;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 24px;
}

/* --- Sub Pages: Trouble Checklist --- */
.trouble-checklist {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trouble-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 24px;
  background-color: var(--color-bg-white);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  font-size: 0.95rem;
}

.trouble-item::before {
  content: '✓';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

/* --- Sub Pages: Content Block --- */
.content-block {
  max-width: 800px;
  margin: 0 auto;
}

.content-block h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--color-text-main);
  padding-left: 16px;
  border-left: 3px solid var(--color-accent);
}

.content-block p {
  font-size: 0.9rem;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

/* --- Service Content Grid --- */
.service-content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.service-content-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 24px;
  background-color: var(--color-bg-white);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.service-content-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
}

.service-content-item p {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.6;
  padding-top: 4px;
}

/* --- Treatment Flow --- */
.flow-steps {
  display: flex;
  justify-content: center;
  gap: 40px;
  max-width: 750px;
  margin: 0 auto;
}

.flow-step {
  text-align: center;
  flex: 1;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -28px;
  top: 30px;
  font-size: 1.3rem;
  color: var(--color-accent);
}

.flow-step-num {
  display: inline-block;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 50px;
  margin-bottom: 14px;
}

.flow-step h3,
.flow-step h4 {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  line-height: 1.6;
}

/* --- Duration Block --- */
.duration-block {
  display: flex;
  justify-content: center;
  gap: 40px;
  max-width: 500px;
  margin: 0 auto;
}

.duration-item {
  text-align: center;
  padding: 24px 36px;
  background-color: var(--color-bg-white);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.duration-item .label {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-bottom: 6px;
}

.duration-item .value {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-accent);
  font-weight: 500;
}

/* --- Before/After --- */
.ba-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.ba-item {
  text-align: center;
}

.ba-item img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
  margin-bottom: 10px;
}

.ba-item .ba-label {
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.ba-single {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
}

.ba-single img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 10px;
}

/* Treatment scene */
.treatment-scene {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.treatment-scene img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 10px;
}

.treatment-scene .caption {
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

/* --- Message Block --- */
.message-block {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 50px 30px;
}

.message-block .quote {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-accent);
  line-height: 1.5;
  margin-bottom: 20px;
}

.message-block p {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 2;
}

/* --- Notice Block --- */
.notice-block {
  max-width: 650px;
  margin: 0 auto;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-align: center;
}

.notice-block h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--color-accent);
}

.notice-block p {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.8;
}

/* --- Sub Page Pricing --- */
.sub-pricing {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
}

.sub-pricing .pricing-table {
  margin-bottom: 16px;
}

/* --- PR Block (Strengths) --- */
.pr-block {
  max-width: 700px;
  margin: 0 auto;
}

.pr-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pr-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background-color: var(--color-bg-white);
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.pr-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.pr-item h3,
.pr-item h4 {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.pr-item p {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 750px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.faq-item:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  line-height: 1.5;
}

.faq-question::before {
  content: 'Q';
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
}

.faq-question::after {
  content: '';
  margin-left: auto;
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-text-light);
  border-bottom: 2px solid var(--color-text-light);
  transform: rotate(45deg);
  transition: transform var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(-135deg);
}

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

.faq-answer-inner {
  padding: 0 24px 22px 68px;
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.8;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .hamburger {
    display: flex;
  }

  .header-nav {
    display: none;
  }

  /* Hero */
  .hero {
    height: 70vh;
    min-height: 400px;
  }

  .hero-text .en-large {
    font-size: 2.4rem;
  }

  .hero-text .ja-main {
    font-size: 1.1rem;
  }

  .hero-sub {
    height: 35vh;
    min-height: 220px;
  }

  /* Section */
  .section {
    padding: var(--section-padding-sp);
  }

  .section-heading {
    margin-bottom: 40px;
  }

  .section-heading .en {
    font-size: 2rem;
  }

  /* Service Cards */
  .service-cards {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .feature-item {
    padding: 20px 12px;
  }

  /* Gallery */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .gallery-grid img {
    height: 180px;
  }

  /* About */
  .about-content {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }

  .about-photo {
    width: 180px;
    height: 220px;
  }

  /* Pricing */
  .pricing-table td {
    font-size: 0.85rem;
    padding: 12px 4px;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav ul {
    align-items: center;
  }

  /* CTA */
  .cta-section {
    padding: 50px 0;
  }

  .cta-section .cta-heading {
    font-size: 1.5rem;
  }

  /* Sub page grids */
  .service-content-grid {
    grid-template-columns: 1fr;
  }

  .flow-steps {
    flex-direction: column;
    gap: 24px;
    align-items: center;
  }

  .flow-step:not(:last-child)::after {
    content: '↓';
    position: static;
    display: block;
    margin-top: 8px;
    font-size: 1.2rem;
  }

  .duration-block {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }

  .duration-item {
    width: 100%;
    max-width: 280px;
  }

  .ba-gallery {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ba-item img {
    height: auto;
  }

  .treatment-scene img {
    height: 240px;
  }

  .message-block .quote {
    font-size: 1.3rem;
  }

  /* PR */
  .pr-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 12px 20px;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.9rem;
  z-index: 2000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

@media (max-width: 480px) {
  .hero-text .en-large {
    font-size: 1.8rem;
  }

  .hero-text .ja-main {
    font-size: 1rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .salon-info-table th,
  .salon-info-table td {
    display: block;
    padding: 8px 16px;
  }

  .salon-info-table th {
    padding-bottom: 0;
    border-bottom: none;
  }

  .salon-info-table tr {
    border-bottom: 1px solid var(--color-border);
  }
}