/* ===========================
   HAPPY GATHERING 公式メディア
   スタイルシート
=========================== */

/* リセット・基本設定 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #c9a84c;
  --color-primary-light: #e8c97a;
  --color-primary-dark: #9a7a30;
  --color-dark: #0d0d0d;
  --color-dark-2: #1a1a1a;
  --color-dark-3: #242424;
  --color-dark-4: #2e2e2e;
  --color-light: #f5f5f0;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #e0e0e0;
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;
  --transition: 0.3s ease;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-dark: 0 4px 30px rgba(0,0,0,0.3);
  --radius: 8px;
  --radius-lg: 16px;
}

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

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

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

a:hover {
  color: var(--color-primary-dark);
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===========================
   ヘッダー
=========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
  transition: all var(--transition);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo a {
  display: flex;
  flex-direction: column;
  color: var(--color-white);
  text-decoration: none;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary);
}

.logo-sub {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.6);
}

.header-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.header-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.header-nav a:hover {
  color: var(--color-primary);
}

.btn-official {
  background: var(--color-primary) !important;
  color: var(--color-dark) !important;
  padding: 8px 18px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.8rem !important;
  letter-spacing: 0.05em;
  transition: background var(--transition) !important;
}

.btn-official:hover {
  background: var(--color-primary-light) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition);
}

/* モバイルナビ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(13, 13, 13, 0.98);
  z-index: 999;
  padding: 20px 24px;
  transform: translateY(-100%);
  transition: transform var(--transition);
}

.mobile-nav.open {
  transform: translateY(0);
}

.mobile-nav ul {
  list-style: none;
}

.mobile-nav li {
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mobile-nav a {
  display: block;
  padding: 14px 0;
  color: var(--color-white);
  font-size: 0.95rem;
}

/* ===========================
   ボタン
=========================== */
.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-dark);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 168, 76, 0.3);
}

.btn-primary.large {
  padding: 18px 40px;
  font-size: 1rem;
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--color-primary);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  text-decoration: none;
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-dark);
}

.btn-outline.large {
  padding: 18px 40px;
  font-size: 1rem;
}

/* ===========================
   セクション共通
=========================== */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===========================
   ヒーローセクション
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 40%, #242424 100%);
  overflow: hidden;
  padding: 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(201, 168, 76, 0.05) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a84c' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 800px;
}

.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 24px;
}

.hero-title .accent {
  color: var(--color-primary);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 48px;
}

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

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(201, 168, 76, 0.6), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===========================
   ブランドメッセージ
=========================== */
.brand-message {
  background: var(--color-dark);
  padding: 80px 0;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.brand-item {
  text-align: center;
  padding: 40px 24px;
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.brand-item:hover {
  border-color: var(--color-primary);
  background: rgba(201, 168, 76, 0.05);
}

.brand-icon {
  color: var(--color-primary);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.brand-item h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.brand-item p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
}

/* ===========================
   代表メッセージ
=========================== */
.about {
  background: var(--color-light);
}

.about-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-text-block {
  margin-bottom: 48px;
}

.about-chapter {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-dark);
  margin-bottom: 16px;
  padding-left: 16px;
  border-left: 3px solid var(--color-primary);
}

.about-text-block p {
  color: var(--color-text);
  line-height: 1.9;
  margin-bottom: 16px;
  font-size: 0.97rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 48px 0;
  padding: 40px;
  background: var(--color-dark);
  border-radius: var(--radius-lg);
}

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

.stat-number {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-serif);
  margin-bottom: 8px;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}

.about-quote {
  margin: 48px 0;
}

.about-quote blockquote {
  background: var(--color-dark);
  border-left: 4px solid var(--color-primary);
  padding: 32px 40px;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.about-quote blockquote p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-white);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-quote blockquote cite {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-style: normal;
}

.about-cta {
  text-align: center;
  margin-top: 40px;
}

/* ===========================
   講師紹介
=========================== */
.instructor {
  background: var(--color-dark-2);
}

.instructor .section-title {
  color: var(--color-white);
}

.instructor .section-subtitle {
  color: rgba(255,255,255,0.6);
}

.instructor-main {
  margin-bottom: 40px;
}

.instructor-card {
  background: var(--color-dark-3);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  transition: all var(--transition);
}

.instructor-card:hover {
  border-color: rgba(201, 168, 76, 0.4);
}

.instructor-card.featured {
  border-color: rgba(201, 168, 76, 0.3);
  background: linear-gradient(135deg, var(--color-dark-3) 0%, rgba(201, 168, 76, 0.05) 100%);
}

.instructor-badge {
  position: absolute;
  top: -12px;
  left: 40px;
  background: var(--color-primary);
  color: var(--color-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.1em;
}

.instructor-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.instructor-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avatar-placeholder {
  color: var(--color-dark);
  font-weight: 700;
  font-size: 1rem;
}

.instructor-nickname {
  font-size: 0.85rem;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.instructor-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-white);
  margin-bottom: 4px;
}

.instructor-role {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}

.instructor-story h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  margin-top: 28px;
}

.instructor-story h4:first-child {
  margin-top: 0;
}

.instructor-story p {
  color: rgba(255,255,255,0.75);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 16px;
}

.instructor-achievements {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
}

.achievement-icon {
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.instructor-sub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.instructor-card.sub {
  padding: 32px;
}

.instructor-card.sub .instructor-name {
  font-size: 1.2rem;
}

.instructor-card.sub .instructor-avatar {
  width: 60px;
  height: 60px;
}

.instructor-desc {
  color: rgba(255,255,255,0.65);
  font-size: 0.88rem;
  line-height: 1.8;
  margin-top: 16px;
}

.instructor-cta {
  text-align: center;
}

/* ===========================
   メソッド
=========================== */
.method {
  background: var(--color-white);
}

.method-intro {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.method-intro p {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.9;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.method-card {
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.method-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.method-card:hover::before {
  transform: scaleX(1);
}

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

.method-number {
  font-size: 3rem;
  font-weight: 700;
  color: rgba(201, 168, 76, 0.15);
  font-family: var(--font-serif);
  line-height: 1;
  margin-bottom: 16px;
}

.method-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.method-tagline {
  font-size: 0.82rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  font-weight: 500;
}

.method-card p:last-child {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.method-steps h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.method-steps > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.steps-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

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

.steps-table th {
  background: var(--color-dark);
  color: var(--color-primary);
  padding: 14px 20px;
  text-align: left;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.steps-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  line-height: 1.6;
}

.steps-table tr:last-child td {
  border-bottom: none;
}

.steps-table tr:nth-child(even) td {
  background: rgba(201, 168, 76, 0.03);
}

.steps-table tr:hover td {
  background: rgba(201, 168, 76, 0.06);
}

.steps-table td:first-child {
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  width: 60px;
}

/* ===========================
   受講生の声
=========================== */
.voice {
  background: var(--color-light);
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.voice-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.voice-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.voice-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.voice-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-dark);
  flex-shrink: 0;
}

.voice-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.voice-tag {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 500;
}

.voice-text {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 20px;
}

.voice-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(201, 168, 76, 0.08);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-primary);
}

.result-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.result-text {
  font-size: 0.82rem;
  color: var(--color-text);
}

.voice-summary {
  max-width: 800px;
  margin: 0 auto 40px;
  text-align: center;
  padding: 32px 40px;
  background: var(--color-dark);
  border-radius: var(--radius-lg);
}

.voice-summary p {
  color: rgba(255,255,255,0.8);
  font-size: 0.97rem;
  line-height: 1.9;
}

.voice-summary strong {
  color: var(--color-primary);
}

.voice-cta {
  text-align: center;
}

/* ===========================
   会社概要
=========================== */
.company {
  background: var(--color-white);
}

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

.company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.company-table th,
.company-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.company-table th {
  color: var(--color-text-light);
  font-weight: 500;
  width: 35%;
  white-space: nowrap;
}

.company-table td {
  color: var(--color-text);
}

.company-table a {
  color: var(--color-primary);
}

.company-services h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-dark);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.service-item {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.service-item:hover {
  border-color: var(--color-primary);
  background: rgba(201, 168, 76, 0.03);
}

.service-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.service-item p {
  font-size: 0.87rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===========================
   FAQ
=========================== */
.faq {
  background: var(--color-light);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--color-dark);
  font-family: var(--font-sans);
  gap: 16px;
  transition: color var(--transition);
}

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

.faq-icon {
  font-size: 1.4rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition);
  font-weight: 300;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-answer.open {
  max-height: 500px;
  padding-bottom: 24px;
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--color-text);
  line-height: 1.9;
}

/* ===========================
   CTAセクション
=========================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-dark) 0%, #1a1a1a 100%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(201, 168, 76, 0.08) 0%, transparent 70%);
}

.cta-content {
  position: relative;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-white);
  margin-bottom: 20px;
  line-height: 1.5;
}

.cta-content > p {
  color: rgba(255,255,255,0.7);
  font-size: 0.97rem;
  margin-bottom: 40px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.cta-tel {
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
}

.cta-tel a {
  color: var(--color-primary);
  font-weight: 700;
}

/* ===========================
   フッター
=========================== */
.site-footer {
  background: #080808;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo-text {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
  line-height: 1.6;
}

.footer-address {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-tel a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

.footer-nav h4 {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer-nav ul {
  list-style: none;
}

.footer-nav li {
  margin-bottom: 10px;
}

.footer-nav a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-keywords {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
  margin-bottom: 12px;
  line-height: 2;
}

.footer-keywords a {
  color: rgba(255,255,255,0.25);
  transition: color var(--transition);
}

.footer-keywords a:hover {
  color: var(--color-primary);
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.2);
}

/* ===========================
   レスポンシブ
=========================== */
@media (max-width: 1024px) {
  .brand-grid,
  .method-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .instructor-sub-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 70px 0;
  }

  .header-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .brand-grid,
  .method-grid,
  .voice-grid,
  .instructor-sub-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
  }

  .company-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .instructor-achievements {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-cta,
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-quote blockquote {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .instructor-header {
    flex-direction: column;
    text-align: center;
  }
}