@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #d97706;
  --accent-hover: #b45309;
  --bg-light: #fafaf9;
  --text-dark: #1c1917;
  --text-muted: #6b6661;
  --white: #ffffff;
  --border: #e7e5e4;
  --font-base: 'Noto Sans JP', sans-serif;
}

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

body {
  font-family: var(--font-base);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent);
  color: var(--white);
  padding: 10px 20px;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Global Styles */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--primary);
  color: var(--white);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 2px solid var(--accent);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.5rem;
}

.logo img {
  width: 40px;
  height: 40px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 25px;
}

nav a {
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s;
}

nav a:hover, nav a:focus {
  color: var(--accent);
  outline: none;
}

.burger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.8rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.95)), url('images/hero.jpg') no-repeat center center/cover;
  color: var(--white);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--border);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--white);
  padding: 14px 35px;
  border: none;
  border-radius: 4px;
  font-weight: 700;
  font-size: 1.1rem;
  cursor: pointer;
  display: inline-block;
  transition: background-color 0.3s, transform 0.2s;
}

.btn-accent:hover, .btn-accent:focus {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

/* Statistics Section */
.stats {
  padding: 60px 0;
  background-color: var(--white);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}

.stat-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Steps Section */
.steps {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 50px;
  color: var(--primary);
  font-weight: 700;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.step-card {
  background: var(--white);
  padding: 30px 20px;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  border-top: 4px solid var(--accent);
}

.step-card i {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.step-card h4 {
  font-size: 1.15rem;
  margin-bottom: 15px;
  color: var(--primary);
}

.step-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Features Block */
.features {
  padding: 80px 0;
  background-color: var(--white);
}

.features-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.features-img img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.features-content h3 {
  font-size: 2rem;
  margin-bottom: 25px;
  color: var(--primary);
}

.features-list {
  list-style: none;
}

.features-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 1.2rem;
}

/* Pricing Section */
.pricing {
  padding: 80px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.price-card {
  background: var(--white);
  border-radius: 8px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border);
  position: relative;
}

.price-card.featured {
  border: 2px solid var(--accent);
  transform: scale(1.03);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--accent);
  color: var(--white);
  padding: 5px 15px;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 20px;
  text-transform: uppercase;
}

.price-card h4 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 15px;
}

.price-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 25px;
}

.price-list {
  list-style: none;
  margin-bottom: 35px;
  text-align: left;
}

.price-list li {
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-list li i {
  color: var(--accent);
}

/* Form Section */
.form-section {
  padding: 80px 0;
  background-color: var(--primary-light);
  color: var(--white);
}

.form-wrapper {
  max-width: 650px;
  margin: 0 auto;
  background: var(--primary);
  padding: 50px 40px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
}

.form-wrapper h3 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--text-muted);
  background-color: rgba(255,255,255,0.05);
  color: var(--white);
  border-radius: 4px;
  font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background-color: rgba(255,255,255,0.1);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 30px;
}

.checkbox-group input {
  width: auto;
  margin-top: 5px;
}

.checkbox-group label {
  font-size: 0.85rem;
  color: var(--border);
  cursor: pointer;
}

.checkbox-group a {
  color: var(--accent);
  text-decoration: underline;
}

/* Accordion FAQ */
.faq-section {
  padding: 80px 0;
}

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

.accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  margin-bottom: 15px;
  border-radius: 4px;
  overflow: hidden;
}

.accordion-btn {
  width: 100%;
  padding: 20px;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion-btn::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent);
}

.accordion-btn.active::after {
  content: '−';
}

.accordion-content {
  display: none;
  padding: 0 20px 20px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
}

/* Trust Layer & Footer */
.trust-layer {
  background-color: #f5f5f4;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.trust-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: flex-start;
}

.trust-info p {
  margin-bottom: 10px;
}

.trust-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.trust-links a {
  text-decoration: underline;
}

.trust-links a:hover {
  color: var(--accent);
}

footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 30px 0;
  font-size: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-nav {
  display: flex;
  gap: 20px;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  background-color: var(--primary);
  color: var(--white);
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  z-index: 9999;
  border: 1px solid var(--accent);
  display: none;
}

.cookie-content p {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.cookie-btns {
  display: flex;
  gap: 15px;
  justify-content: flex-end;
}

.btn-cookie {
  padding: 8px 20px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
}

.btn-cookie-accept {
  background-color: var(--accent);
  color: var(--white);
}

.btn-cookie-deny {
  background-color: transparent;
  color: var(--border);
  border: 1px solid var(--border);
}

/* Mobile Menu CSS */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background-color: var(--primary);
  padding: 20px;
  border-bottom: 2px solid var(--accent);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  list-style: none;
  gap: 15px;
  text-align: center;
}

.mobile-menu a {
  font-size: 1.1rem;
  font-weight: 500;
  display: block;
  padding: 10px 0;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Responsive */
@media (max-width: 992px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-layout {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  .price-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  nav {
    display: none;
  }
  .burger {
    display: block;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

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