/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-blue: #2563eb;
  --primary-blue-dark: #1d4ed8;
  --primary-blue-light: #3b82f6;
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --radius: 0.5rem;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans JP', sans-serif;
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--gray-900);
}

.logo-subtitle {
  font-size: 0.75rem;
  color: var(--gray-600);
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-700);
  transition: color 0.2s;
  font-weight: 500;
}

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

.nav-link.active {
  font-weight: 600;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  color: var(--gray-700);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-blue), var(--blue-800));
  color: var(--white);
  padding: 5rem 0;
  position: relative;
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(37, 99, 235, 0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 768px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

.btn-primary:hover {
  background: var(--primary-blue-dark);
}

.btn-secondary {
  background: var(--white);
  color: var(--gray-900);
}

.btn-secondary:hover {
  background: var(--gray-100);
}

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

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

.btn-white:hover {
  background: var(--blue-50);
}

.btn-dark {
  background: var(--blue-800);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--gray-900);
}

/* Section Styles */
.section {
  padding: 5rem 0;
}

.section-gray {
  background: var(--gray-50);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gray-900);
}

.section-title p {
  color: var(--gray-600);
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 192px;
  object-fit: cover;
}

.card-body {
  padding: 2rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--gray-900);
}

.card-text {
  color: var(--gray-600);
  line-height: 1.7;
}

/* Service Grid */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 992px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
}

/* CTA Section */
.cta-box {
  background: linear-gradient(135deg, var(--primary-blue), var(--blue-700));
  border-radius: 1rem;
  padding: 3rem;
  text-align: center;
  color: var(--white);
  max-width: 768px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 3rem 0;
}

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .footer-logo {
    justify-content: center;
  }
}

.footer-logo-text {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--white);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--gray-400);
  line-height: 1.7;
}

.footer-title {
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--gray-300);
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--blue-400);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .footer-contact-item {
    justify-content: center;
  }
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--blue-400);
}

.footer-contact-item a {
  color: var(--gray-300);
  transition: color 0.2s;
}

.footer-contact-item a:hover {
  color: var(--blue-400);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* About Page */
.page-header {
  text-align: center;
  padding: 4rem 0 3rem;
}

.page-header h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gray-900);
}

.page-header p {
  color: var(--gray-600);
}

.info-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  margin-bottom: 2rem;
}

.info-card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-900);
}

.info-item {
  margin-bottom: 1.5rem;
}

.info-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-bottom: 0.25rem;
}

.info-value {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--gray-900);
}

.purpose-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.purpose-number {
  width: 32px;
  height: 32px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.purpose-text {
  font-size: 1.125rem;
  color: var(--gray-900);
}

.executive-item {
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.executive-role {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-bottom: 0.5rem;
}

.executive-name {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--gray-900);
}

.executive-address {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-top: 0.5rem;
}

/* Services Page */
.service-detail-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 3rem;
}

.service-detail-card:hover {
  box-shadow: var(--shadow-lg);
}

.service-detail-image {
  width: 100%;
  height: 256px;
  object-fit: cover;
}

.service-detail-header {
  padding: 2rem;
}

.service-detail-title {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--gray-900);
}

.service-detail-desc {
  color: var(--gray-600);
}

.service-detail-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  padding: 0 2rem 2rem;
}

@media (max-width: 992px) {
  .service-detail-content {
    grid-template-columns: 1fr;
  }
}

.service-section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-900);
}

.service-section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--primary-blue);
  border-radius: 2px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
}

.feature-icon {
  width: 20px;
  height: 20px;
  color: var(--primary-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-text {
  font-size: 0.875rem;
  color: var(--gray-700);
}

.benefit-item {
  padding: 1rem;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
}

.benefit-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.benefit-number {
  width: 24px;
  height: 24px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.benefit-title {
  font-weight: 600;
  color: var(--gray-900);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (max-width: 576px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  max-width: 1024px;
  margin: 0 auto;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.contact-info-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  background: var(--blue-100);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary-blue);
}

.contact-info-title {
  font-weight: 600;
  color: var(--gray-900);
}

.contact-info-value {
  color: var(--primary-blue);
}

.contact-info-value:hover {
  text-decoration: underline;
}

.contact-info-address {
  color: var(--gray-700);
  line-height: 1.7;
}

.contact-form-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.contact-form-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--gray-900);
}

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

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

.form-label .required {
  color: #dc2626;
  margin-left: 0.25rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  padding: 1rem;
  font-size: 1.125rem;
}

/* Service Detail Page */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-blue);
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--blue-700);
}

.back-link svg {
  width: 20px;
  height: 20px;
}

.detail-hero {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
}

.detail-hero-image {
  width: 100%;
  height: 384px;
  object-fit: cover;
}

.detail-hero-content {
  padding: 2rem;
  background: var(--white);
}

.detail-hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--gray-900);
}

.detail-hero p {
  font-size: 1.25rem;
  color: var(--gray-600);
}

.detail-section {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  margin-bottom: 2rem;
}

.detail-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-900);
}

.detail-section-title::before {
  content: '';
  width: 6px;
  height: 32px;
  background: var(--primary-blue);
  border-radius: 3px;
}

.detail-text {
  color: var(--gray-700);
  line-height: 1.8;
}

.detail-text p {
  margin-bottom: 1rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (max-width: 992px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-benefit-item {
  padding: 1rem;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.detail-benefit-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.detail-benefit-number {
  width: 28px;
  height: 28px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
}

.detail-benefit-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}

.detail-benefit-desc {
  font-size: 0.875rem;
  color: var(--gray-700);
  margin-left: 2.5rem;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 992px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

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

.process-number {
  width: 64px;
  height: 64px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.process-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gray-900);
}

.process-desc {
  font-size: 0.875rem;
  color: var(--gray-600);
}

/* Utility Classes */
.max-w-5xl {
  max-width: 1024px;
  margin: 0 auto;
}

.max-w-6xl {
  max-width: 1200px;
  margin: 0 auto;
}

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

.mt-8 {
  margin-top: 2rem;
}

.mb-8 {
  margin-bottom: 2rem;
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--gray-100);
  }

  .nav.active {
    display: flex;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

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

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}

/* Icon styles (SVG inline) */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon svg {
  width: 1em;
  height: 1em;
}