:root {
  --color-bg: #FFF9F3;
  --color-bg-alt: #FFFFFF;
  --color-primary: #FF7A59;
  --color-primary-dark: #E85F3E;
  --color-secondary: #06C755;
  --color-secondary-dark: #0B6B36;
  --color-text: #3A2E2A;
  --color-text-muted: #7A6A63;
  --color-accent: #FFD166;
  --color-border: #F0E1D5;
  --radius: 16px;
  --shadow-soft: 0 4px 20px rgba(58, 46, 42, 0.08);
  --font-body: 'Noto Sans JP', sans-serif;
  --font-heading: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
}

h1, h2, h3 { font-family: var(--font-heading); line-height: 1.4; }

a { color: inherit; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }

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

.btn-line { background: var(--color-secondary); color: #fff; }

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.logo { font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem; text-decoration: none; }
.header-bar nav { display: flex; gap: 20px; flex-wrap: wrap; }
.header-bar nav a { text-decoration: none; font-weight: 500; }

#hero { background: var(--color-bg-alt); padding: 72px 0; text-align: center; }
.hero-inner { display: flex; flex-direction: column; align-items: center; gap: 20px; max-width: 680px; margin: 0 auto; }
.hero-eyebrow { color: var(--color-primary-dark); font-weight: 700; letter-spacing: 0.04em; }
#hero h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
.hero-lead { color: var(--color-text-muted); font-size: 1.1rem; }
.hero-cta-group { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }

#philosophy { padding: 64px 0; text-align: center; }
#philosophy h2 { margin-bottom: 16px; font-size: 1.75rem; }
#philosophy p { max-width: 600px; margin: 0 auto; color: var(--color-text-muted); }

#lessons { padding: 64px 0; background: var(--color-bg-alt); }
#lessons h2 { text-align: center; margin-bottom: 32px; font-size: 1.75rem; }
.lesson-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.lesson-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.lesson-card h3 { color: var(--color-primary-dark); margin-bottom: 8px; }
.lesson-card p { color: var(--color-text-muted); }

#testimonials { padding: 64px 0; background: var(--color-bg-alt); }
#testimonials h2 { text-align: center; margin-bottom: 32px; font-size: 1.75rem; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.testimonial-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 24px;
}
.testimonial-quote { margin-bottom: 12px; }
.testimonial-author { font-weight: 700; }
.testimonial-source { display: inline-block; margin-top: 4px; font-size: 0.85rem; color: var(--color-secondary-dark); }

#cta-repeat { padding: 64px 0; text-align: center; }
.cta-repeat-inner { max-width: 680px; margin: 0 auto; }
#cta-repeat h2 { margin-bottom: 12px; font-size: 1.75rem; }

#contact { padding: 64px 0; }
#contact h2 { margin-bottom: 8px; font-size: 1.75rem; }
.contact-lead { color: var(--color-text-muted); margin-bottom: 24px; }
#contact-form { display: flex; flex-direction: column; gap: 6px; max-width: 520px; }
#contact-form label { font-weight: 700; margin-top: 12px; }
#contact-form input, #contact-form textarea {
  font-family: var(--font-body);
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg-alt);
}
.field-error { color: #C0392B; font-size: 0.85rem; min-height: 1.2em; }
#contact-form button { margin-top: 16px; align-self: flex-start; }
.contact-status { margin-top: 12px; font-weight: 700; }
.contact-status--success { color: #1E8E5A; }
.contact-status--error { color: #C0392B; }

#footer { background: var(--color-text); color: #fff; padding: 48px 0; margin-top: 64px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.footer-brand { font-family: var(--font-heading); font-weight: 700; margin-bottom: 8px; }
.footer-social, .footer-legal { display: flex; flex-direction: column; gap: 8px; }
#footer a { text-decoration: none; opacity: 0.85; }
#footer a:hover { opacity: 1; text-decoration: underline; }

.legal-page { padding: 48px 0 80px; max-width: 720px; }
.legal-page h1 { margin: 24px 0; font-size: 1.75rem; }
.legal-page h2 { margin-top: 32px; margin-bottom: 8px; font-size: 1.2rem; color: var(--color-primary-dark); }
.legal-page table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.legal-page th, .legal-page td { text-align: left; padding: 12px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.legal-page th { width: 30%; color: var(--color-text-muted); }

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero-cta-group { flex-direction: column; width: 100%; }
  .hero-cta-group .btn { width: 100%; }
  .header-bar { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; gap: 24px; }
}