/*
Theme Name: Piano Flex
Theme URI: https://piano-flex.com
Description: Piano Flex カスタムテーマ — 身体の使い方から変えるピアノレッスン
Author: Piano Flex / Nagao Taishi
Author URI: https://piano-flex.com
Version: 1.0.0
License: All Rights Reserved
Text Domain: piano-flex
*/

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  --color-primary:    #2A7A7A;
  --color-accent:     #1A5F6A;
  --color-bg:         #FFFFFF;
  --color-bg-off:     #F8F8F6;
  --color-sub:        #F5D5D5;
  --color-text:       #2C2C2C;
  --color-text-light: #6B7280;
  --color-border:     #E5E7EB;

  --font-serif:  'Cormorant Garamond', 'Georgia', serif;
  --font-sans:   'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;

  --max-width: 1100px;
  --section-padding: 100px 0;

  --transition: 0.3s ease;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.10);
}

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

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

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ============================================================
   Utility Classes
   ============================================================ */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin-inline: auto;
}

.section {
  padding: var(--section-padding);
}

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

.section--dark {
  background: var(--color-primary);
  color: #fff;
}

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

.section-heading__en {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.15em;
  color: var(--color-primary);
  display: block;
  line-height: 1.2;
}

.section-heading__ja {
  font-size: 0.85rem;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
  margin-top: 6px;
  display: block;
}

.section--dark .section-heading__en { color: #fff; }
.section--dark .section-heading__ja { color: rgba(255,255,255,0.7); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 2px;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}
.btn--white:hover {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn--line {
  background: #06C755;
  color: #fff;
  border-color: #06C755;
  font-size: 1rem;
  padding: 16px 44px;
}
.btn--line:hover { background: #05a847; border-color: #05a847; }

/* Text alignment */
.text-center { text-align: center; }
.text-left   { text-align: left; }

/* Decorative divider */
.divider {
  width: 40px;
  height: 2px;
  background: var(--color-primary);
  margin: 16px auto;
}

/* ============================================================
   Header / Navigation
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  font-weight: 600;
}

.site-logo span {
  font-size: 0.6em;
  font-family: var(--font-sans);
  display: block;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  font-weight: 400;
}

.global-nav ul {
  display: flex;
  gap: 36px;
  align-items: center;
}

.global-nav a {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  font-weight: 500;
  position: relative;
}

.global-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.global-nav a:hover::after,
.global-nav a.current::after { width: 100%; }

.header-cta .btn {
  padding: 10px 24px;
  font-size: 0.82rem;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: 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: rgba(255,255,255,0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  color: var(--color-text);
  font-weight: 500;
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-bg-off) 60%, #E8F5F5 100%);
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(42,122,122,0.06);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(245,213,213,0.3);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* 画像なし時は1カラム中央寄せ */
.hero-inner:has(.hero-content:only-child),
.hero-inner--centered {
  grid-template-columns: 1fr;
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.hero-content {
  text-align: center;
}

.hero-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.35;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero-title em {
  color: var(--color-primary);
  font-style: normal;
}

.hero-subtitle {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
}

.hero-image-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 120px;
  height: 120px;
  background: var(--color-sub);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--color-text);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   Concept Section
   ============================================================ */

/* Concept Message Block */
.concept-message {
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 64px;
  text-align: center;
  padding: 48px 40px;
  background: #fff;
  border-top: 3px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.concept-message__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  color: var(--color-primary);
  letter-spacing: 0.04em;
  line-height: 1.7;
  margin-bottom: 28px;
}

.concept-message__body {
  font-size: 0.97rem;
  line-height: 2.1;
  color: var(--color-text);
  margin-bottom: 20px;
}

.concept-message__closing {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.concept-card {
  background: #fff;
  padding: 40px 32px;
  border-top: 3px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  text-align: left;
}

.concept-card__number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-sub);
  line-height: 1;
  margin-bottom: 16px;
}

.concept-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.concept-card__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ============================================================
   About Section (Top abbreviated)
   ============================================================ */
.about-inner {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 80px;
  align-items: center;
}

.about-image img {
  width: 100%;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
}

.about-content {}

.about-content .section-heading {
  text-align: left;
  margin-bottom: 24px;
}

.about-content .divider { margin-left: 0; }

.about-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-primary);
  margin: 20px 0 4px;
}

.about-name-ja {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.about-text {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: 32px;
}

/* ============================================================
   Lesson Overview (Top)
   ============================================================ */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.lesson-card {
  background: #fff;
  padding: 40px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border-radius: 2px;
  transition: var(--transition);
}

.lesson-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.lesson-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.lesson-card__city {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-primary);
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.lesson-card__freq {
  font-size: 0.78rem;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.lesson-card__text {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--color-text-light);
}

/* ============================================================
   Lesson Simple Block (Top)
   ============================================================ */
.lesson-simple {
  display: flex;
  justify-content: center;
}

.lesson-simple__card {
  background: #fff;
  padding: 56px 64px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  max-width: 540px;
  width: 100%;
  border-top: 3px solid var(--color-primary);
}

.lesson-simple__icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.lesson-simple__label {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 28px;
}

.lesson-simple__time {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  padding: 20px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.lesson-simple__time-main {
  font-family: var(--font-serif);
  font-size: 3.6rem;
  color: var(--color-primary);
  line-height: 1;
}

.lesson-simple__time-main small {
  font-size: 1.2rem;
  color: var(--color-text-light);
}

.lesson-simple__time-note {
  font-size: 0.82rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
}

.lesson-simple__text {
  font-size: 0.9rem;
  line-height: 2;
  color: var(--color-text-light);
}

@media (max-width: 768px) {
  .lesson-simple__card { padding: 40px 28px; }
}

/* ============================================================
   Voice Section (Top excerpt)
   ============================================================ */
.voice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.voice-card {
  background: #fff;
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-sub);
  position: relative;
}

.voice-card::before {
  content: '\201C';
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--color-sub);
  position: absolute;
  top: 12px;
  left: 24px;
  line-height: 1;
}

.voice-card__text {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--color-text);
  padding-top: 40px;
  margin-bottom: 20px;
}

.voice-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  display: flex;
  gap: 12px;
}

.voice-card__name { font-weight: 700; color: var(--color-text); }

/* ============================================================
   Blog Cards (Top)
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-card {
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.blog-card__thumb img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.blog-card__body {
  padding: 24px;
}

.blog-card__cat {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 2px 10px;
  margin-bottom: 12px;
}

.blog-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 12px;
  color: var(--color-text);
}

.blog-card__date {
  font-size: 0.78rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
}

/* ============================================================
   CTA Banner
   ============================================================ */
.cta-section {
  background: var(--color-primary);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.cta-section__en {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.12em;
  color: #fff;
  margin-bottom: 8px;
}

.cta-section__ja {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 40px;
  line-height: 2;
}

.cta-section__btns {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Profile Page
   ============================================================ */
.profile-hero {
  background: linear-gradient(to bottom, var(--color-bg-off), var(--color-bg));
  padding: 120px 0 80px;
}

.profile-hero-inner {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 80px;
  align-items: start;
}

.profile-photo img {
  width: 100%;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
}

.profile-name-en {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.profile-name-ja {
  font-size: 1rem;
  color: var(--color-text-light);
  letter-spacing: 0.15em;
  margin-bottom: 32px;
}

.profile-tagline {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: 32px;
  padding: 24px;
  border-left: 3px solid var(--color-sub);
  background: var(--color-bg-off);
}

.profile-career h3 {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.career-list li {
  font-size: 0.9rem;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 16px;
}

.career-list__year {
  color: var(--color-text-light);
  font-size: 0.82rem;
  min-width: 40px;
}

.origin-story {
  padding: 100px 0;
  background: var(--color-bg);
}

.origin-story__inner {
  max-width: 780px;
  margin-inline: auto;
}

.origin-story h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 32px;
  text-align: center;
}

.origin-story p {
  font-size: 0.95rem;
  line-height: 2.1;
  color: var(--color-text);
  margin-bottom: 24px;
}

.activity-area {
  padding: 80px 0;
  background: var(--color-bg-off);
}

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

.area-card {
  text-align: center;
  background: #fff;
  padding: 32px 16px;
  box-shadow: var(--shadow-sm);
}

.area-card__city {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.area-card__freq {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ============================================================
   Lesson Page
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--color-bg-off) 0%, #E8F5F5 100%);
  padding: 140px 0 80px;
  text-align: center;
}

.page-hero__en {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--color-primary);
  letter-spacing: 0.15em;
  line-height: 1.2;
}

.page-hero__ja {
  font-size: 0.9rem;
  color: var(--color-text-light);
  letter-spacing: 0.12em;
  margin-top: 8px;
}

.lesson-detail-section {
  padding: 80px 0;
}

.lesson-detail-section + .lesson-detail-section {
  border-top: 1px solid var(--color-border);
}

.lesson-location {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.lesson-location h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.lesson-location .freq {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.lesson-location p {
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 20px;
}

.lesson-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.lesson-spec-table th,
.lesson-spec-table td {
  padding: 14px 20px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.lesson-spec-table th {
  background: var(--color-bg-off);
  font-weight: 600;
  color: var(--color-text);
  width: 36%;
}

.lesson-spec-table td {
  background: #fff;
}

.flow-steps {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
  counter-increment: step;
}

.flow-step__num {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-sub);
  min-width: 50px;
  font-weight: 700;
}

.flow-step__body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.flow-step__body p {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--color-text-light);
}

/* ============================================================
   Price Page
   ============================================================ */
.price-section {
  padding: 80px 0;
}

.price-section + .price-section {
  border-top: 1px solid var(--color-border);
  padding-top: 80px;
}

.price-location-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 4px 14px;
  margin-bottom: 16px;
}

.price-section h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.price-section__sub {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  line-height: 1.8;
}

.price-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.price-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}

.price-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.price-card--featured {
  border-color: var(--color-primary);
  background: linear-gradient(to bottom, #EEF8F8, #fff);
  position: relative;
}

.price-card--featured::before {
  content: 'POPULAR';
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 4px 12px;
}

.price-card__label {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.price-card__amount {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.price-card__amount span {
  font-size: 1rem;
  color: var(--color-text-light);
}

.price-card__note {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.price-card__includes {
  font-size: 0.82rem;
  color: var(--color-text);
  line-height: 2;
}

.price-notice {
  margin-top: 32px;
  padding: 24px;
  background: var(--color-bg-off);
  border-left: 3px solid var(--color-sub);
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--color-text-light);
}

/* ============================================================
   FAQ Page
   ============================================================ */
.faq-list {
  max-width: 780px;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition);
}

.faq-question:hover { color: var(--color-primary); }

.faq-question__q {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-primary);
  min-width: 28px;
}

.faq-question__text { flex: 1; }

.faq-question__icon {
  width: 28px;
  height: 28px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-primary);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-question__icon { transform: rotate(45deg); }
.faq-item.open .faq-question { color: var(--color-primary); }

.faq-answer {
  display: none;
  padding: 0 0 28px 44px;
  font-size: 0.92rem;
  line-height: 2;
  color: var(--color-text-light);
}

.faq-answer__a {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-sub);
  margin-right: 12px;
}

.faq-item.open .faq-answer { display: block; }

/* ============================================================
   Contact Page
   ============================================================ */
.contact-hero {
  background: linear-gradient(135deg, var(--color-bg-off), #EBF7F7);
  padding: 140px 0 80px;
  text-align: center;
}

.contact-content {
  padding: 80px 0;
}

.contact-inner {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
}

.contact-inner p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 48px;
}

.contact-area-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.area-card-contact {
  background: var(--color-bg-off);
  padding: 24px 16px;
  text-align: center;
}

.area-card-contact__name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.area-card-contact__desc {
  font-size: 0.78rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.line-cta-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: 60px 48px;
  border-radius: 4px;
  text-align: center;
}

.line-cta-box h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.line-cta-box p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  line-height: 1.9;
}

.line-qr {
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: 4px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  color: var(--color-text-light);
}

/* ============================================================
   Blog / Archive / Single
   ============================================================ */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.single-content {
  max-width: 780px;
  margin-inline: auto;
}

.single-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 16px;
}

.single-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.single-body {
  font-size: 0.97rem;
  line-height: 2.1;
}

.single-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-sub);
}

.single-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 32px 0 12px;
}

.single-body p { margin-bottom: 24px; }

.single-body img {
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  margin: 32px 0;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.85);
  padding: 60px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 280px 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand {}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.12em;
  color: #fff;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
}

.footer-nav h4 {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
}

.footer-nav a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

.footer-bottom a:hover { color: rgba(255,255,255,0.85); }

/* ============================================================
   Page Banner (shared)
   ============================================================ */
.page-banner {
  background: linear-gradient(135deg, var(--color-bg-off) 0%, #E8F5F5 100%);
  padding: 140px 0 80px;
  text-align: center;
}

/* ============================================================
   Voice Page
   ============================================================ */
.voice-full-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.voice-card-full {
  background: #fff;
  padding: 48px 40px;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--color-sub);
}

.voice-card-full__quote {
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--color-sub);
  line-height: 1;
  margin-bottom: 12px;
}

.voice-card-full__text {
  font-size: 0.95rem;
  line-height: 2.1;
  color: var(--color-text);
  margin-bottom: 28px;
}

.voice-card-full__image {
  margin-bottom: 20px;
  border-radius: 4px;
  overflow: hidden;
}

.voice-card-full__image img {
  width: 100%;
}

.voice-card-full__meta {
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.voice-card-full__name {
  font-weight: 700;
  color: var(--color-text);
  font-size: 1rem;
}

/* ============================================================
   Tokushoho / Legal
   ============================================================ */
.legal-content {
  max-width: 780px;
  margin-inline: auto;
  padding: 80px 0;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.legal-table th,
.legal-table td {
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  text-align: left;
  line-height: 1.9;
}

.legal-table th {
  background: var(--color-bg-off);
  width: 30%;
  font-weight: 600;
  vertical-align: top;
  color: var(--color-text);
}

/* ============================================================
   Responsive — Tablet (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner        { grid-template-columns: 1fr 1fr; gap: 40px; }
  .about-inner       { grid-template-columns: 280px 1fr; gap: 40px; }
  .area-grid         { grid-template-columns: repeat(2, 1fr); }
  .footer-inner      { grid-template-columns: 1fr 1fr; gap: 40px; }
  .concept-grid      { grid-template-columns: 1fr 1fr; gap: 24px; }
  .blog-grid         { grid-template-columns: 1fr 1fr; }
  .archive-grid      { grid-template-columns: 1fr 1fr; }
  .profile-hero-inner{ grid-template-columns: 280px 1fr; gap: 40px; }
}

/* ============================================================
   Responsive — Mobile (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --section-padding: 56px 0;
  }

  /* ── Header ── */
  .hamburger          { display: flex; }
  .global-nav,
  .header-cta         { display: none; }
  .header-inner       { padding: 14px 0; }
  .site-logo          { font-size: 1.2rem; }

  /* ── Hero ── */
  .hero               { min-height: auto; padding: 100px 0 60px; }
  .hero-inner         { grid-template-columns: 1fr; }
  .hero-image         { display: none; }
  .hero-title         { font-size: clamp(1.9rem, 7vw, 2.6rem); line-height: 1.4; }
  .hero-subtitle      { font-size: 0.92rem; line-height: 1.9; }
  .hero-eyebrow       { font-size: 0.7rem; }
  .hero-cta           { flex-direction: column; gap: 12px; }
  .hero-cta .btn      { width: 100%; text-align: center; }

  /* ── Section headings ── */
  .section-heading__en { font-size: clamp(1.8rem, 6vw, 2.4rem); }

  /* ── Concept ── */
  .concept-grid       { grid-template-columns: 1fr; gap: 16px; }
  .concept-message    { padding: 32px 24px; }
  .concept-message__lead { font-size: 1.1rem; }

  /* ── About ── */
  .about-inner        { grid-template-columns: 1fr; gap: 32px; }
  .about-image        { max-width: 240px; margin-inline: auto; }
  .about-content .section-heading { text-align: center; }
  .about-content .divider { margin-inline: auto; }
  .about-name,
  .about-name-ja      { text-align: center; }
  .about-text         { font-size: 0.9rem; }

  /* ── Lesson simple ── */
  .lesson-simple__card { padding: 36px 20px; }
  .lesson-simple__time-main { font-size: 2.8rem; }

  /* ── Voice ── */
  .voice-grid         { grid-template-columns: 1fr; }
  .voice-full-grid    { grid-template-columns: 1fr; }
  .voice-card-full    { padding: 32px 24px; }

  /* ── Blog ── */
  .blog-grid          { grid-template-columns: 1fr; }
  .archive-grid       { grid-template-columns: 1fr; }

  /* ── CTA Section ── */
  .cta-section        { padding: 64px 0; }
  .cta-section__btns  { flex-direction: column; align-items: center; gap: 12px; }
  .cta-section__btns .btn { width: 100%; max-width: 320px; text-align: center; }

  /* ── Profile ── */
  .profile-hero       { padding: 90px 0 48px; }
  .profile-hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .profile-photo      { max-width: 220px; margin-inline: auto; }
  .profile-name-en    { font-size: 1.8rem; text-align: center; }
  .profile-name-ja    { text-align: center; }
  .profile-tagline    { font-size: 0.9rem; padding: 16px; }
  .career-list li     { flex-direction: column; gap: 4px; }
  .area-grid          { grid-template-columns: repeat(2, 1fr); }
  .origin-story       { padding: 56px 0; }

  /* ── Lesson page ── */
  .lesson-location    { grid-template-columns: 1fr; gap: 32px; }
  .lesson-spec-table th,
  .lesson-spec-table td { padding: 10px 14px; font-size: 0.85rem; }
  .flow-step          { gap: 16px; }

  /* ── Price ── */
  .price-cards        { grid-template-columns: 1fr; }
  .price-card         { padding: 28px 20px; }

  /* ── FAQ ── */
  .faq-question       { font-size: 0.92rem; gap: 12px; }
  .faq-answer         { padding-left: 32px; font-size: 0.88rem; }

  /* ── Contact ── */
  .contact-area-cards { grid-template-columns: 1fr; gap: 12px; }
  .line-cta-box       { padding: 40px 24px; }
  .line-cta-box h3    { font-size: 1.4rem; }

  /* ── Footer ── */
  .footer-inner       { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom      { flex-direction: column; gap: 10px; text-align: center; }
  .site-footer        { padding: 48px 0 24px; }

  /* ── Page banner ── */
  .page-banner        { padding: 100px 0 48px; }
  .page-hero__en      { font-size: clamp(2rem, 8vw, 3rem); }

  /* ── Legal table ── */
  .legal-table th,
  .legal-table td     { display: block; width: 100%; }
  .legal-table th     { background: var(--color-bg-off); border-bottom: none; }

  /* ── Single post ── */
  .single-meta        { flex-wrap: wrap; gap: 8px; }
}

/* ============================================================
   Responsive — Small Mobile (max 480px)
   ============================================================ */
@media (max-width: 480px) {
  :root { --section-padding: 48px 0; }

  .container          { width: 92%; }

  .hero-title         { font-size: clamp(1.7rem, 8vw, 2.2rem); }
  .btn                { padding: 13px 28px; font-size: 0.88rem; }
  .btn--line          { padding: 14px 28px; }

  .concept-message    { padding: 24px 18px; }
  .concept-message__lead { font-size: 1rem; }

  .lesson-simple__card { padding: 28px 16px; }

  .voice-card         { padding: 28px 20px; }
  .voice-card-full    { padding: 24px 18px; }

  .profile-photo      { max-width: 180px; }
  .profile-name-en    { font-size: 1.5rem; }

  .section-heading__en { font-size: clamp(1.6rem, 7vw, 2rem); }

  /* Price card amount 小さめに */
  .price-card__amount { font-size: 2rem; }
  .lesson-simple__time-main { font-size: 2.4rem; }

  /* Footer nav 読みやすく */
  .footer-nav ul      { gap: 14px; }
  .footer-nav a       { font-size: 0.9rem; }
}