:root {
  --forest: #2d5f3f;
  --forest-dark: #1e4029;
  --sage: #7a9b76;
  --sand: #e8dcc4;
  --sand-light: #f5efe6;
  --cream: #f7f5f2;
  --charcoal: #1a1a1a;
  --charcoal-light: #3a3a3a;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --white: #ffffff;
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic",
    "Meiryo", sans-serif;
  line-height: 1.8;
  color: var(--charcoal);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 500;
  line-height: 1.4;
  color: var(--charcoal);
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  font-size: 1rem;
  margin-bottom: 1rem;
}

a {
  color: var(--forest);
  text-decoration: none;
  transition: all 0.3s ease;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
}

.section-compact {
  padding: 4rem 0;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  transition: all 0.3s ease;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--forest);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-menu a {
  color: var(--charcoal);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: var(--forest);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--charcoal);
  transition: all 0.3s ease;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  background: linear-gradient(135deg, var(--cream) 0%, var(--sand-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 6rem;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-subtitle {
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 2rem;
  line-height: 1.2;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--charcoal-light);
  margin-bottom: 3rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.hero-image {
  position: relative;
  z-index: 1;
}

.hero-image img {
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 2.5rem;
  border-radius: 50px;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--forest);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--forest-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--forest);
  border: 2px solid var(--forest);
}

.btn-outline:hover {
  background: var(--forest);
  color: var(--white);
}

.btn-light {
  background: var(--white);
  color: var(--forest);
}

.btn-light:hover {
  background: var(--cream);
}

/* Philosophy Section */
.philosophy {
  background: var(--white);
  text-align: center;
}

.philosophy-content {
  max-width: 700px;
  margin: 0 auto;
}

.philosophy-title {
  margin-bottom: 2rem;
}

.philosophy-text {
  font-size: 1.15rem;
  line-height: 2;
  color: var(--charcoal-light);
}

/* Problem Section */
.problem {
  background: var(--cream);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.problem-content h2 {
  margin-bottom: 2rem;
}

.problem-list {
  list-style: none;
  margin-top: 2rem;
}

.problem-list li {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.05rem;
}

.problem-list li::before {
  content: "×";
  font-size: 1.5rem;
  color: var(--sage);
  font-weight: 700;
}

.problem-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* Solution Section */
.solution {
  background: var(--forest);
  color: var(--white);
}

.solution h2,
.solution h3 {
  color: var(--white);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.solution-content {
  opacity: 0.95;
}

.solution-steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.solution-step {
  display: flex;
  gap: 1.5rem;
}

.step-number {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.25rem;
}

.step-content h4 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.step-content p {
  opacity: 0.9;
  margin: 0;
}

/* Benefits Section */
.benefits {
  background: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--charcoal-light);
  max-width: 600px;
  margin: 0 auto;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.benefit-card {
  padding: 2.5rem;
  border-radius: 16px;
  background: var(--gray-50);
  transition: all 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: var(--forest);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.benefit-card h3 {
  margin-bottom: 1rem;
}

.benefit-card p {
  color: var(--charcoal-light);
  margin: 0;
}

/* Process Timeline */
.process {
  background: var(--sand-light);
}

.timeline {
  position: relative;
  padding-left: 3rem;
  margin-top: 3rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--sage);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}

.timeline-marker {
  position: absolute;
  left: -3.5rem;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--forest);
  border: 4px solid var(--sand-light);
}

.timeline-content {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
}

.timeline-content h4 {
  margin-bottom: 0.75rem;
  color: var(--forest);
}

/* Eco Section */
.eco {
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.eco-container {
  display: flex;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.eco-content h2 {
  margin-bottom: 2rem;
}

.eco-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.eco-stat {
  text-align: center;
  padding: 2rem;
  border-radius: 12px;
  background: var(--cream);
}

.eco-number {
  font-size: 3rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.5rem;
}

.eco-label {
  font-size: 0.9rem;
  color: var(--charcoal-light);
}

.eco-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* Testimonials */
.testimonials {
  background: var(--cream);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

.testimonial-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
}

.testimonial-quote {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--charcoal-light);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--forest);
}

.author-info h5 {
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.author-info p {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin: 0;
}

/* Science Section */
.science {
  background: var(--white);
}

.science-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.science-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.science-card {
  padding: 2rem;
  border-radius: 12px;
  border: 2px solid var(--gray-200);
  transition: all 0.3s ease;
}

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

.science-value {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.5rem;
}

.science-label {
  font-size: 0.95rem;
  color: var(--charcoal-light);
}

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

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  margin-top: 3rem;
}

.faq-item {
  background: var(--white);
  margin-bottom: 1rem;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.faq-question {
  padding: 1.75rem 2rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  font-size: 1.05rem;
  transition: all 0.3s ease;
}

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

.faq-icon {
  font-size: 1.5rem;
  color: var(--sage);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 2rem 2rem 2rem;
  color: var(--charcoal-light);
  line-height: 1.8;
}

/* Order Form */
.order {
  background: var(--white);
}

.order-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.order-info h2 {
  margin-bottom: 2rem;
}

.order-features {
  list-style: none;
  margin: 2rem 0;
}

.order-features li {
  padding: 1rem 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--gray-200);
}

.order-features li::before {
  content: "✓";
  color: var(--forest);
  font-weight: 700;
  font-size: 1.25rem;
}

.form-wrapper {
  background: var(--cream);
  padding: 3rem;
  border-radius: 20px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--charcoal);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--forest);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.error-message {
  color: #dc2626;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  display: none;
}

.checkbox-group {
  display: flex;
  align-items: start;
  gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.checkbox-group label {
  margin: 0;
  font-weight: 400;
  font-size: 0.9rem;
}

.form-submit {
  width: 100%;
  margin-top: 1rem;
}

/* CTA Section */
.cta {
  background: var(--forest);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.cta p {
  font-size: 1.15rem;
  opacity: 0.95;
  margin-bottom: 2.5rem;
}

/* Footer */
.footer {
  background: var(--charcoal);
  color: var(--gray-300);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.footer-section p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--gray-300);
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--charcoal-light);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
}

/* Page Hero */
.page-hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, var(--cream) 0%, var(--sand-light) 100%);
  text-align: center;
  margin-top: 80px;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.15rem;
  color: var(--charcoal-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Content Sections */
.content-section {
  padding: 5rem 0;
}

.content-section h2 {
  margin-bottom: 2rem;
}

.content-section h3 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--forest);
}

.content-section ul,
.content-section ol {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.content-section li {
  margin-bottom: 0.75rem;
  line-height: 1.8;
}

/* Thanks Page */
.thanks-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--cream) 0%, var(--sand-light) 100%);
}

.thanks-content {
  max-width: 600px;
}

.thanks-icon {
  width: 100px;
  height: 100px;
  background: var(--forest);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin: 0 auto 2rem;
}

.thanks-content h1 {
  margin-bottom: 1.5rem;
}

.thanks-content p {
  font-size: 1.15rem;
  color: var(--charcoal-light);
  margin-bottom: 2.5rem;
}

.thanks-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

/* Cookie Banner & Modal */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  z-index: 10000;
  padding: 2rem;
}

#cookie-banner[hidden] {
  display: none;
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cookie-text h3 {
  margin-bottom: 0.5rem;
  color: var(--charcoal);
}

.cookie-text p {
  color: var(--charcoal-light);
  font-size: 0.95rem;
}

.cookie-text a {
  color: var(--forest);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-cookie {
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: 50px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  white-space: nowrap;
}

.btn-cookie.btn-primary {
  background: var(--forest);
  color: var(--white);
}

.btn-cookie.btn-primary:hover {
  background: var(--forest-dark);
  transform: translateY(-2px);
}

.btn-cookie.btn-secondary {
  background: var(--gray-200);
  color: var(--charcoal);
}

.btn-cookie.btn-secondary:hover {
  background: var(--gray-300);
}

.btn-cookie.btn-outline {
  background: transparent;
  color: var(--forest);
  border: 2px solid var(--forest);
}

.btn-cookie.btn-outline:hover {
  background: var(--forest);
  color: var(--white);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none;
}

.modal-content {
  background: var(--white);
  border-radius: 20px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 2rem 2rem 1rem 2rem;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  margin: 0;
  color: var(--charcoal);
}

.close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--gray-500);
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.close-btn:hover {
  background: var(--gray-100);
  color: var(--charcoal);
}

.modal-body {
  padding: 2rem;
}

.cookie-category {
  margin-bottom: 1.5rem;
}

.category-header {
  margin-bottom: 0.5rem;
}

.category-header label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--charcoal);
}

.cookie-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--forest);
}

.category-desc {
  color: var(--charcoal-light);
  font-size: 0.9rem;
  margin-left: 2rem;
}

.modal-footer {
  padding: 1rem 2rem 2rem 2rem;
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
}

.btn-link {
  background: none;
  border: none;
  color: var(--gray-300);
  cursor: pointer;
  padding: 0;
  font-size: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.btn-link:hover {
  color: var(--white);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .problem-grid,
  .solution-grid,
  .eco-container,
  .order-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .section {
    padding: 5rem 0;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    flex-direction: column;
    background: var(--white);
    width: 100%;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: left 0.3s ease;
    align-items: flex-start;
  }

  .nav-menu.active {
    left: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 6rem 0 4rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
  }

  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-actions {
    width: 100%;
    flex-direction: column;
  }

  .btn-cookie {
    width: 100%;
    justify-content: center;
  }

  .thanks-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container,
  .container-wide,
  .container-narrow {
    padding: 0 1.25rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .form-wrapper {
    padding: 2rem 1.5rem;
  }
}