/* =============================================
   StepWiseJapan — Main Stylesheet
   Theme: Walking & Active Lifestyle
   Language: Japanese
   ============================================= */

/* ---------- CSS Variables / Design Tokens ---------- */
:root {
  --color-primary: #2e6b3e;      /* forest green */
  --color-primary-dark: #1e4d2b; /* deep green */
  --color-accent: #e8a020;       /* amber */
  --color-bg: #f5f2ec;           /* warm cream */
  --color-surface: #ffffff;
  --color-text: #1c1c1c;
  --color-text-muted: #666666;
  --color-border: #ddd8ce;
  --color-footer-bg: #1c2e21;
  --color-footer-text: #c8d8c0;

  --font-heading: 'Noto Serif JP', Georgia, serif;
  --font-body: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', Arial, sans-serif;

  --radius: 6px;
  --max-width: 1140px;
  --gap: 2rem;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background-color: var(--color-bg); }
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.3; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { line-height: 1.7; color: var(--color-text-muted); }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* =============================================
   HEADER
   ============================================= */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.header-logo { width: 40px; height: 40px; }
.header-logo svg { width: 100%; height: 100%; }
.header-brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
  justify-content: center;
}
.header-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s;
}
.header-nav a:hover { color: var(--color-accent); }
.header-nav .header-cta { margin-left: 0.5rem; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  width: 28px;
  height: 24px;
}
.nav-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: all 0.3s;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background-color: var(--color-primary-dark); }
.btn-accent {
  background-color: var(--color-accent);
  color: #fff;
}
.btn-accent:hover { background-color: #c98a10; }
.btn-outline-light {
  background-color: transparent;
  color: #fff;
  border: 2px solid #fff;
}
.btn-outline-light:hover {
  background-color: #fff;
  color: var(--color-primary);
}
.btn-light {
  background-color: #fff;
  color: var(--color-accent);
  border: 2px solid #fff;
}
.btn-light:hover {
  background-color: var(--color-bg);
  color: var(--color-accent);
}
.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 4rem 0;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-tag {
  display: inline-block;
  background-color: rgba(255,255,255,0.2);
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  width: fit-content;
}
.hero-content h1 { color: #fff; margin-bottom: 1rem; }
.hero-content > p {
  color: rgba(255,255,255,0.9);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  max-width: 95%;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image img,
.image-placeholder {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: rgba(255,255,255,0.1);
  display: block;
}

/* =============================================
   SECTIONS
   ============================================= */
.section {
  padding: 4rem 0;
  background-color: var(--color-bg);
}
.section.mission {
  background-color: var(--color-bg);
}
.section-tag {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.section-title {
  margin-bottom: 0.75rem;
  color: var(--color-text);
}
.section > .container > p {
  text-align: center;
  margin-bottom: 2.5rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* Stats */
.stats {
  background-color: var(--color-primary);
  color: #fff;
  padding: 3rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stat-number { font-size: 2.5rem; font-weight: 700; font-family: var(--font-heading); }
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.85); margin-top: 0.5rem; }

/* Benefits */
.benefits-intro { text-align: center; margin-bottom: 3rem; }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.benefit-card {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
}
.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}
.benefit-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
}
.benefit-icon svg { width: 100%; height: 100%; }
.benefit-card h3 { color: var(--color-primary); margin-bottom: 0.75rem; }
.benefit-card p { font-size: 0.95rem; }

/* Mission */
.mission {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 3rem;
}
.mission h2 { color: var(--color-primary); margin-bottom: 1rem; }
.mission p { font-size: 1.05rem; }

/* Steps */
.steps-header { text-align: center; margin-bottom: 3rem; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}
.step {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  border-left: 4px solid var(--color-accent);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}
.step h3 { color: var(--color-primary); margin-bottom: 0.75rem; }

/* Gallery */
.gallery-header { text-align: center; margin-bottom: 3rem; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4/3;
}
.gallery-item img,
.gallery-item .image-placeholder {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.2s;
  display: block;
}
.gallery-item:hover img,
.gallery-item:hover .image-placeholder {
  transform: scale(1.05);
}
.gallery-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: #fff;
  padding: 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

/* Testimonials */
.testimonials-header { text-align: center; margin-bottom: 3rem; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.testimonial-card {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  position: relative;
  padding-top: 2.5rem;
}
.testimonial-quote {
  position: absolute;
  top: 0.5rem;
  left: 1.5rem;
  font-size: 2rem;
  color: var(--color-accent);
  opacity: 0.3;
  font-family: var(--font-heading);
}
.testimonial-text {
  margin-bottom: 1.5rem;
  font-style: italic;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.testimonial-author {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.testimonial-avatar {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--color-border);
}
.testimonial-avatar img,
.testimonial-avatar .image-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.testimonial-name { font-weight: 700; color: var(--color-text); }
.testimonial-role { font-size: 0.85rem; color: var(--color-text-muted); }

/* Products / Programs */
.products-header { text-align: center; margin-bottom: 3rem; }
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.product-card {
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  border: 2px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}
.product-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 16px rgba(232,160,32,0.1);
}
.product-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 1rem;
}
.product-header h3 { color: var(--color-primary); }
.product-price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
}
.product-desc {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.product-features {
  list-style: none;
  margin-bottom: 1.5rem;
}
.product-features li {
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}
.product-features li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}
.product-card .btn {
  width: 100%;
  justify-content: center;
  margin-top: auto;
}

/* CTA Band */
.cta-band {
  background: linear-gradient(135deg, var(--color-accent) 0%, #d98f1a 100%);
  color: #fff;
  padding: 4rem 2rem;
  text-align: center;
}
.cta-band h2 { color: #fff; margin-bottom: 0.75rem; }
.cta-band p { color: rgba(255,255,255,0.9); max-width: 600px; margin-inline: auto; }

/* Contacts */
.contacts h2 { text-align: center; color: var(--color-primary); margin-bottom: 2.5rem; }
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: center;
}
.contact-item h3 { color: var(--color-primary); margin-bottom: 0.75rem; }
.contact-item p { margin: 0.5rem 0; }
.contact-item a { color: var(--color-accent); font-weight: 600; }
.contact-item a:hover { text-decoration: underline; }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 3.5rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer-col p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-footer-text);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--color-footer-text);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: #fff; }
.footer-legal {
  text-align: center;
  font-size: 0.85rem;
  color: rgba(200,216,192,0.7);
}
.footer-legal p { margin: 0; }

/* =============================================
   COOKIE BANNER
   ============================================= */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 1.5rem;
  z-index: 9999;
  border-top: 1px solid rgba(255,255,255,0.2);
  display: none;
  max-height: 100vh;
  overflow-y: auto;
}
.cookie-banner.active { display: block; }
.cookie-banner-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cookie-banner-text {
  flex: 1;
  min-width: 280px;
}
.cookie-banner-text p {
  margin: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--color-footer-text);
}
.cookie-banner-text strong { color: #fff; }
.cookie-banner-text a {
  color: var(--color-accent);
  text-decoration: underline;
}
.cookie-banner-text a:hover { opacity: 0.8; }
.cookie-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.cookie-banner-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.cookie-banner-btn-accept {
  background-color: var(--color-accent);
  color: #fff;
}
.cookie-banner-btn-accept:hover { background-color: #d98f1a; }
.cookie-banner-btn-reject {
  background-color: transparent;
  color: var(--color-footer-text);
  border: 1px solid rgba(200,216,192,0.5);
}
.cookie-banner-btn-reject:hover { border-color: #fff; }
.cookie-banner-btn-customize {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.cookie-banner-btn-customize:hover { background-color: rgba(232,160,32,0.1); }

/* Cookie Customization Panel */
.cookie-customize-panel {
  background-color: var(--color-footer-bg);
  border-top: 2px solid var(--color-accent);
  padding: 2rem;
  margin-top: 1.5rem;
}
.cookie-customize-inner {
  max-width: var(--max-width);
  margin-inline: auto;
}
.cookie-customize-inner h3 {
  color: #fff;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}
.cookie-customize-inner > p {
  color: var(--color-footer-text);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}
.cookie-option {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background-color: rgba(0,0,0,0.2);
  border-radius: var(--radius);
}
.cookie-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 0.25rem;
  cursor: pointer;
  flex-shrink: 0;
}
.cookie-checkbox:disabled { opacity: 0.5; }
.cookie-option label {
  cursor: pointer;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.cookie-option label strong { color: #fff; }
.cookie-option label small { color: rgba(200,216,192,0.8); }
.cookie-required {
  display: inline-block;
  background-color: var(--color-accent);
  color: #fff;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 700;
}
.cookie-customize-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}
.cookie-banner-btn-save {
  background-color: var(--color-accent);
  color: #fff;
}
.cookie-banner-btn-save:hover { background-color: #d98f1a; }
.cookie-banner-btn-essential {
  background-color: transparent;
  color: var(--color-footer-text);
  border: 1px solid rgba(200,216,192,0.5);
}
.cookie-banner-btn-essential:hover { border-color: #fff; }

/* =============================================
   CONTENT CENTERING
   ============================================= */
.benefits-intro, .steps-header, .gallery-header, .testimonials-header, .products-header {
  text-align: center;
  margin-inline: auto;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .header-nav { display: none; }
  .header-nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background-color: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 1rem; gap: 0.5rem; box-shadow: 0 4px 6px rgba(0,0,0,0.1); z-index: 99; }
  .nav-toggle { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 0;
  }
  .hero-content > p { max-width: 100%; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }

  .cookie-banner-inner { flex-direction: column; align-items: stretch; }
  .cookie-banner-actions { width: 100%; justify-content: flex-start; }
  .cookie-banner-btn { flex: 1; min-width: 120px; }

  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  .testimonials-grid, .products-grid, .benefits-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .container { padding-inline: 1rem; }
  
  .section { padding: 2.5rem 0; }
  
  .hero { padding: 2rem 0; }
  .hero-tag, .section-tag { font-size: 0.75rem; }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  
  .btn { padding: 0.5rem 1rem; font-size: 0.85rem; }
  .btn-lg { padding: 0.6rem 1.5rem; }
  
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .stat-number { font-size: 1.75rem; }
  .stat-label { font-size: 0.75rem; }
  
  .product-header { flex-direction: column; }
  .product-price { text-align: left; }
  
  .cookie-customize-actions { flex-direction: column-reverse; }
  .cookie-banner-btn-save, .cookie-banner-btn-essential { width: 100%; }
}