/* =====================
   Google Fonts & Variables
   ===================== */
@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;600;800&display=swap');

:root {
  --black:    #0d0d0d;
  --white:    #ffffff;
  --gray-100: #f8f7f5;
  --gray-200: #efefed;
  --gray-500: #888888;
  --gray-700: #444444;
  --marker:   #FFE83A;
  --max-w:    1200px;
  --serif:    'Shippori Mincho B1', 'Yu Mincho', 'YuMincho', serif;
  --sans:     'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
}

/* =====================
   Reset & Base
   ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--sans);
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  font-size: 16px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* =====================
   Utilities
   ===================== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 40px; }
.marker { background: var(--marker); padding: 0 3px;color:var(--black);font-weight:bold;}

/* =====================
   Scroll Animation
   ===================== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1),
              transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* =====================
   Header
   ===================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.4s, border-color 0.4s;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}
.logo {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--white);
  transition: color 0.4s;
}
.site-header.scrolled .logo { color: var(--black); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.site-header.scrolled .nav-links a { color: var(--gray-700); }
.nav-links a:hover { color: var(--white); }
.site-header.scrolled .nav-links a:hover { color: var(--black); }
.nav-cta {
  font-size: 0.8125rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.06em;
  padding: 10px 24px;
  border: 1px solid rgba(255,255,255,0.5);
  color: var(--white) !important;
  transition: background 0.2s, color 0.2s, border-color 0.2s !important;
}
.nav-cta:hover { background: var(--white); color: var(--black) !important; border-color: var(--white); }
.site-header.scrolled .nav-cta {
  border-color: var(--black);
  color: var(--black) !important;
}
.site-header.scrolled .nav-cta:hover { background: var(--black); color: var(--white) !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--white);
  transition: background 0.4s;
}
.site-header.scrolled .hamburger span { background: var(--black); }

/* =====================
   Buttons
   ===================== */
.btn {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 16px 40px;
  border: 1px solid currentColor;
  transition: background 0.25s, color 0.25s;
  cursor: pointer;
  font-family: var(--sans);
}
.btn-dark { background: var(--black); color: var(--white); border-color: var(--black); }
.btn-dark:hover { background: #333; }
.btn-light { background: var(--white); color: var(--black); border-color: var(--white); }
.btn-light:hover { background: transparent; color: var(--white); }
.btn-outline { background: transparent; color: var(--black); border-color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--white); }

/* =====================
   Hero
   ===================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.2;
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 32px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.55);
  line-height: 2;
  margin-bottom: 48px;
  max-width: 480px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* =====================
   Section Base
   ===================== */
.section { padding: 140px 0; }
.section-dark { padding: 140px 0; background: var(--black); color: var(--white); }
.section-gray { padding: 140px 0; background: var(--gray-100); }

.eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 20px;
  display: block;
}
.section-dark .eyebrow { color: rgba(255,255,255,0.35); }

h2.display {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.section-dark h2.display { color: var(--white); }

.lead {
  font-size: 1rem;
  color: var(--gray-700);
  line-height: 2;
  max-width: 600px;
}
.section-dark .lead { color: rgba(255,255,255,0.55); }
.section-header { margin-bottom: 80px; }
.section-header.center { text-align: center; }
.section-header.center .lead { margin: 0 auto; }

/* =====================
   Problem
   ===================== */
.problem-statement {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 72px;
}
.problem-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.08);
  margin-bottom: 72px;
}
.problem-item { padding: 40px 32px; background: var(--black); }
.problem-item .quote {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--white);
  margin-bottom: 14px;
}
.problem-item .quote::before { content: '「'; }
.problem-item .quote::after { content: '」'; }
.problem-item p { font-size: 0.8rem; color: rgba(255,255,255,0.4); line-height: 1.8; }
.problem-footnote {
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.5);
  line-height: 2;
}
.problem-footnote strong { color: var(--white); }

/* =====================
   Solution
   ===================== */
.solution-statement {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.8;
  margin-bottom: 80px;
  max-width: 100%;
}
.solution-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.solution-col { border-top: 1px solid var(--gray-200); padding-top: 32px; }
.solution-col .num {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--gray-200);
  line-height: 1;
  margin-bottom: 20px;
}
.solution-col h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.solution-col p { font-size: 0.875rem; color: var(--gray-700); line-height: 1.9; }

/* =====================
   How It Works
   ===================== */
.works-flow {
  display: grid;
  grid-template-columns: 1fr 32px 1fr 32px 1fr;
  align-items: start;
  gap: 0;
  margin-bottom: 64px;
}
.works-step .step-num {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gray-500);
  margin-bottom: 16px;
  display: block;
  text-transform: uppercase;
}
.works-step h3 {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}
.works-step .pt {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  display: block;
}
.pt-plus { color: #1a7a1a; }
.pt-minus { color: #cc2200; }
.pt-neutral { color: var(--gray-500); }
.works-step p { font-size: 0.8125rem; color: var(--gray-700); line-height: 1.8; }
.works-arrow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 56px;
  color: var(--gray-200);
  font-size: 1.25rem;
}
.works-note {
  padding-top: 48px;
  border-top: 1px solid var(--gray-200);
  font-size: 0.9375rem;
  color: var(--gray-700);
  line-height: 2;
}
.works-note strong { color: var(--black); }

/* =====================
   Review
   ===================== */
.review-example {
  padding: 56px;
  background: var(--gray-100);
  margin-bottom: 64px;
}
.review-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 24px;
  display: block;
}
.review-text {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 2;
}
.review-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.review-point { border-top: 1px solid var(--gray-200); padding-top: 28px; }
.review-point h4 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 10px; }
.review-point p { font-size: 0.875rem; color: var(--gray-700); line-height: 1.9; }

/* =====================
   Target
   ===================== */
.target-items { display: flex; flex-direction: column; }
.target-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 32px;
  align-items: center;
  padding: 36px 0;
  border-bottom: 1px solid var(--gray-200);
}
.target-item:first-child { border-top: 1px solid var(--gray-200); }
.target-item .idx {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--gray-200);
  text-align: center;
}
.target-item p { font-size: 1rem; line-height: 1.8; }

/* =====================
   Pricing
   ===================== */
.price-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gray-200);
  margin-bottom: 80px;
}
.price-col { padding: 56px 48px; background: var(--white); }
.price-col.dark { background: var(--black); color: var(--white); }
.price-col .plan {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 16px;
}
.price-col.dark .plan { color: rgba(255,255,255,0.35); }
.price-col .amount {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1;
}
.price-col .per { font-size: 0.875rem; color: var(--gray-500); margin-bottom: 36px; }
.price-col.dark .per { color: rgba(255,255,255,0.35); }
.price-features { display: flex; flex-direction: column; }
.price-features li {
  font-size: 0.875rem;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-700);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.price-col.dark .price-features li { border-color: rgba(255,255,255,0.08); color: rgba(255,255,255,0.55); }
.price-features li::before { content: '—'; color: var(--gray-500); flex-shrink: 0; }

.referral-section h3 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 24px;
}
.referral-rows { display: flex; flex-direction: column; gap: 1px; background: var(--gray-200); }
.referral-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  background: var(--white);
}
.referral-row.featured { background: var(--marker); }
.referral-row .who { font-size: 0.9375rem; }
.referral-row .rate { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; }

/* =====================
   Founding Member
   ===================== */
.founder-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding-top: 64px;
  border-top: 1px solid var(--gray-200);
}
.founder-col h3 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 32px;
}
.founder-list { display: flex; flex-direction: column; }
.founder-list li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* =====================
   Mission
   ===================== */
.mission-section {
  padding: 160px 0;
  background: var(--black);
  color: var(--white);
  text-align: center;
}
.mission-eyebrow {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  margin-bottom: 48px;
  display: block;
}
.mission-text {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  background: var(--marker);
  color: var(--black);
  display: inline-block;
  padding: 4px 20px;
  margin-bottom: 64px;
}
.mission-body {
  font-size: 1rem;
  color: rgba(255,255,255,0.45);
  line-height: 2.4;
  max-width: 480px;
  margin: 0 auto;
}

/* =====================
   Form
   ===================== */
.form-wrap { max-width: 560px; margin: 0 auto; }
.form-group { margin-bottom: 36px; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.required {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--gray-500);
  margin-left: 8px;
  letter-spacing: 0.1em;
  vertical-align: middle;
  text-transform: uppercase;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 0;
  font-size: 1rem;
  border: none;
  border-bottom: 1px solid var(--gray-200);
  background: transparent;
  font-family: var(--sans);
  color: var(--black);
  transition: border-color 0.2s;
  outline: none;
  border-radius: 0;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus { border-bottom-color: var(--black); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit { text-align: center; margin-top: 56px; }
.form-submit .btn { min-width: 240px; }
.form-note { text-align: center; font-size: 0.75rem; color: var(--gray-500); margin-top: 20px; }
.form-success { text-align: center; padding: 80px 0; }
.form-success h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.form-success p { font-size: 0.9375rem; color: var(--gray-700); line-height: 2; }
.form-error-list { font-size: 0.875rem; color: #cc2200; margin-bottom: 32px; line-height: 2; }

/* =====================
   Footer
   ===================== */
.site-footer { padding: 56px 0; border-top: 1px solid var(--gray-200); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo { font-family: var(--serif); font-size: 0.9375rem; font-weight: 600; letter-spacing: 0.04em; }
.footer-logo small {
  display: block;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gray-500);
  margin-top: 4px;
  letter-spacing: 0;
}
.footer-copy { font-size: 0.75rem; color: var(--gray-500); }

/* =====================
   Members List
   ===================== */
.page-hero { padding: 160px 0 80px; background: var(--black); color: var(--white); }
.page-hero .eyebrow { color: rgba(255,255,255,0.35); }
.page-hero h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.page-hero p { font-size: 1rem; color: rgba(255,255,255,0.45); }

.members-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  padding: 80px 0;
}
.member-card { background: var(--white); transition: background 0.2s; display: block; }
.member-card:hover { background: var(--gray-100); }
.member-card-img { aspect-ratio: 1; background: var(--gray-100); overflow: hidden; }
.member-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s; }
.member-card:hover .member-card-img img { transform: scale(1.04); }
.member-card-body { padding: 28px 28px 36px; }
.founder-badge {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--marker);
  padding: 3px 8px;
  margin-bottom: 12px;
}
.member-card h3 { font-family: var(--serif); font-size: 1.125rem; font-weight: 600; margin-bottom: 4px; }
.member-card .company { font-size: 0.8125rem; color: var(--gray-500); margin-bottom: 12px; }
.member-card .tagline { font-size: 0.875rem; line-height: 1.7; color: var(--gray-700); }

/* =====================
   Member Profile
   ===================== */
.profile-hero { padding: 140px 0 80px; background: var(--black); color: var(--white); }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.35);
  margin-bottom: 56px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--white); }
.profile-hero-inner {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 56px;
  align-items: start;
}
.profile-photo { width: 180px; height: 180px; overflow: hidden; background: #222; }
.profile-photo img { width: 100%; height: 100%; object-fit: cover; }
.profile-info .founder-badge { margin-bottom: 16px; }
.profile-info h1 { font-family: var(--serif); font-size: 2rem; font-weight: 800; margin-bottom: 6px; }
.profile-info .company { font-size: 0.9375rem; color: rgba(255,255,255,0.4); margin-bottom: 20px; }
.profile-info .tagline { font-size: 1rem; color: rgba(255,255,255,0.65); line-height: 1.9; }

.profile-body { padding: 100px 0; }
.profile-section { max-width: 720px; margin-bottom: 72px; }
.profile-section h2 {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 28px;
}
.profile-section p { font-size: 0.9375rem; line-height: 2; color: var(--gray-700); }
.video-wrap { aspect-ratio: 16/9; background: var(--black); overflow: hidden; margin-top: 24px; }
.video-wrap iframe { width: 100%; height: 100%; border: none; }
.service-box { padding: 40px; background: var(--gray-100); }
.pt-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 8px 16px;
  background: var(--black);
  color: var(--white);
  margin-bottom: 20px;
}
.service-box h3 { font-family: var(--serif); font-size: 1.125rem; font-weight: 600; margin-bottom: 14px; }
.service-box p { font-size: 0.9375rem; line-height: 2; color: var(--gray-700); }

/* =====================
   Responsive
   ===================== */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .section, .section-dark, .section-gray { padding: 100px 0; }
  .mission-section { padding: 120px 0; }
  .header-inner { padding: 0 24px; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 24px;
    gap: 20px;
    z-index: 99;
    align-items: flex-start;
  }
  .nav-links.open a { color: var(--gray-700); }
  .nav-links.open .nav-cta { color: var(--black) !important; border-color: var(--black); }
  .hamburger { display: flex; }

  .hero h1 { font-size: 2.5rem; }
  .problem-list { grid-template-columns: 1fr; }
  .solution-cols { grid-template-columns: 1fr; gap: 40px; }
  .works-flow { grid-template-columns: 1fr; gap: 40px; }
  .works-arrow { display: none; }
  .review-points { grid-template-columns: 1fr; }
  .price-cols { grid-template-columns: 1fr; }
  .founder-cols { grid-template-columns: 1fr; gap: 48px; }
  .members-grid { grid-template-columns: repeat(2, 1fr); }
  .profile-hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .profile-photo { width: 120px; height: 120px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 540px) {
  .members-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .target-item { grid-template-columns: 40px 1fr; gap: 20px; }
  .review-example { padding: 32px 24px; }
  .price-col { padding: 40px 24px; }
}