/* GLOBAL RESET & VARIABLES */
:root {
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --dark: #0F172A;
  --dark-surface: #1E293B;
  --light-bg: #F8FAFC;
  --text: #334155;
  --text-muted: #64748B;
  --border: #E2E8F0;
  --white: #FFFFFF;
  --accent: #D97706;
  --success: #059669;
  --error: #DC2626;
  --font-main: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Montserrat', 'Noto Sans JP', sans-serif;
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 30px -10px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  color: var(--text);
  background-color: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-hover);
}

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

/* LAYOUT CONTAINER */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-layout-container {
  max-width: 960px;
}

.section {
  padding: 80px 0;
}

.bg-light {
  background-color: var(--light-bg);
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--dark);
  line-height: 1.3;
  font-weight: 800;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 48px;
}

.text-center {
  text-align: center;
}

.highlight {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 50px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border);
  color: var(--dark);
}

.btn-outline:hover {
  border-color: var(--dark);
  background-color: var(--light-bg);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

/* HEADER NAV */
.header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 16px 0;
}

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

.header-logo {
  height: 48px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--dark);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle .bar {
  display: block;
  width: 24px;
  height: 3px;
  background-color: var(--dark);
  margin: 5px 0;
  transition: var(--transition);
}

/* HERO SECTION */
.hero-section {
  padding: 80px 0 100px;
  background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 2.85rem;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust-strip {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  font-weight: 600;
  font-size: 0.95rem;
}

.trust-item svg {
  color: var(--success);
}

.hero-image-wrapper {
  position: relative;
}

.hero-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
}

.hero-floating-card {
  position: absolute;
  bottom: -24px;
  left: -24px;
  background-color: var(--dark);
  color: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-lg);
  max-width: 320px;
}

.hero-floating-card .card-icon {
  background-color: var(--primary);
  padding: 12px;
  border-radius: 10px;
  display: flex;
}

.hero-floating-card strong {
  display: block;
  font-size: 1.05rem;
}

.hero-floating-card span {
  font-size: 0.8rem;
  color: #94A3B8;
}

/* CARDS & GRID */
.grid {
  display: grid;
  gap: 32px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2-equal {
  grid-template-columns: 1fr 1fr;
}

.card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(37, 99, 235, 0.3);
}

.benefit-card .card-img-box {
  height: 200px;
  overflow: hidden;
}

.benefit-card .card-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.benefit-card:hover .card-img-box img {
  transform: scale(1.05);
}

.benefit-card .card-body {
  padding: 28px;
}

.card-icon-inline {
  width: 48px;
  height: 48px;
  background-color: rgba(37, 99, 235, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* FEATURE DETAIL */
.feature-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.step-badge {
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  margin-bottom: 12px;
}

.feature-checklist {
  list-style: none;
  margin-top: 24px;
}

.feature-checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 900;
}

.feature-detail-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.margin-top-xl {
  margin-top: 60px;
}

.service-box {
  background-color: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.service-box h4 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.service-box p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* HOW IT WORKS PROCESS */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  background-color: var(--white);
  border: 1px solid var(--border);
  padding: 32px 24px;
  border-radius: var(--radius);
  position: relative;
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(37, 99, 235, 0.15);
  line-height: 1;
  margin-bottom: 16px;
}

.process-step h4 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

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

/* ABOUT SECTION & TRANSPARENCY BOX */
.rounded-img {
  border-radius: var(--radius);
  width: 100%;
}

.shadow {
  box-shadow: var(--shadow);
}

.paragraph {
  margin-bottom: 20px;
  font-size: 1rem;
  color: var(--text);
}

.operator-transparency-box {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  padding: 24px;
  border-radius: 8px;
  margin-top: 24px;
}

.operator-transparency-box h4 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.operator-transparency-box ul {
  list-style: none;
  font-size: 0.9rem;
}

.operator-transparency-box li {
  margin-bottom: 6px;
}

/* TESTIMONIALS */
.testimonial-card {
  padding: 32px;
}

.testimonial-stars {
  color: var(--accent);
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.testimonial-text {
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 24px;
  color: var(--text);
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-author span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* FAQ ACCORDION */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--dark);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
}

details[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* FORM SECTION */
.form-section {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.form-container-wrapper {
  max-width: 760px;
}

.lead-form {
  background-color: var(--white);
  border: 1px solid var(--border);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--dark);
}

.required {
  color: var(--error);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"] {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-main);
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

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

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input {
  margin-top: 3px;
}

.microcopy {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
}

.form-status {
  padding: 16px 20px;
  border-radius: 8px;
  margin-top: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.success-message {
  background-color: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #065F46;
}

.error-message {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
  color: #991B1B;
}

/* FOOTER */
.footer {
  background-color: var(--dark);
  color: #94A3B8;
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--dark-surface);
}

.footer-logo {
  height: 42px;
  margin-bottom: 20px;
}

.footer-tagline {
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.footer-operator p {
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.footer-operator a {
  color: #60A5FA;
}

.footer-heading {
  color: var(--white);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.footer-links ul,
.footer-legal ul {
  list-style: none;
}

.footer-links li,
.footer-legal li {
  margin-bottom: 12px;
}

.footer-links a,
.footer-legal a {
  color: #94A3B8;
  font-size: 0.9rem;
}

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

.footer-bottom {
  background-color: #090D16;
  padding: 24px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #94A3B8;
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  left: 24px;
  max-width: 540px;
  margin: 0 auto;
  background-color: var(--dark);
  color: var(--white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  border: 1px solid var(--dark-surface);
}

.cookie-content p {
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 16px;
  color: #CBD5E1;
}

.cookie-content a {
  color: #60A5FA;
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-image-wrapper {
    max-width: 600px;
    margin: 0 auto;
  }
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--white);
    flex-direction: column;
    padding: 32px;
    box-shadow: var(--shadow-lg);
    display: none;
    gap: 20px;
  }
  .nav-menu.active {
    display: flex;
  }
  .nav-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.15rem;
  }
  .grid-3, .grid-2-equal, .feature-detail-grid, .process-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .lead-form {
    padding: 24px;
  }
}