:root {
  /* Natural Clean Light Palette */
  --color-bg: #fbfdfc;
  --color-bg-subtle: #f2f7f4;
  --color-bg-card: #ffffff;
  --color-border: #e3ece6;
  --color-border-light: #edf3ef;
  --color-border-hover: #74c69d;
  
  /* Natural Forest & Sage Greens */
  --color-primary: #245e43;
  --color-primary-hover: #1b4733;
  --color-primary-light: #40916c;
  --color-accent-soft: #eaf5ee;
  --color-accent-badge: #d8f3dc;
  --color-accent-sage: #52b788;

  /* Typography Colors */
  --color-text-main: #1e2922;
  --color-text-muted: #526359;
  --color-text-sub: #788a80;

  --font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: all 0.25s ease-in-out;
  --container-width: 1140px;
  --shadow-sm: 0 2px 8px rgba(36, 94, 67, 0.04);
  --shadow-md: 0 6px 24px rgba(36, 94, 67, 0.07);
  --shadow-lg: 0 12px 36px rgba(36, 94, 67, 0.1);
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(251, 253, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.3px;
  color: var(--color-primary);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(36, 94, 67, 0.2);
}

.logo-text {
  color: var(--color-text-main);
}

.logo-sub {
  color: var(--color-primary-light);
  font-size: 0.85rem;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

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

.nav-cta {
  padding: 10px 22px;
  font-size: 0.9rem;
}

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

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-main);
  margin: 5px 0;
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(36, 94, 67, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(36, 94, 67, 0.35);
}

.btn-outline {
  background: #ffffff;
  color: var(--color-primary);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Typography & Utilities */
.gradient-text {
  background: linear-gradient(135deg, #1b4733, #2d6a4f, #40916c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary-light);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-text-main);
  line-height: 1.35;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

.section-divider {
  width: 44px;
  height: 3px;
  background: var(--color-primary-light);
  margin: 18px auto 0;
  border-radius: 2px;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 70px;
  background: radial-gradient(circle at 50% 20%, #eaf5ee 0%, #fbfdfc 65%);
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
}

.shape {
  position: absolute;
  filter: blur(80px);
  opacity: 0.4;
  border-radius: 50%;
}

.shape-1 {
  width: 480px;
  height: 480px;
  background: #d8f3dc;
  top: -50px;
  left: 10%;
}

.shape-2 {
  width: 420px;
  height: 420px;
  background: #b7e4c7;
  top: 25%;
  right: 8%;
}

.shape-3 {
  width: 380px;
  height: 380px;
  background: #e8f5e9;
  bottom: -20px;
  left: 30%;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 860px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--color-accent-soft);
  border: 1px solid #c3e6cb;
  border-radius: 9999px;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary-light);
  border-radius: 50%;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -1px;
  color: var(--color-text-main);
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 38px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  flex-wrap: wrap;
}

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

.stat-number {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.3px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

/* About Section */
.about {
  background: var(--color-bg-subtle);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.about-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 38px 30px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.about-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.about-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.about-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-main);
}

.about-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* Services Section */
.services {
  background: #ffffff;
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.service-item {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 44px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.service-item.reverse {
  grid-template-columns: 0.8fr 1.2fr;
}

.service-item.reverse .service-content {
  order: 2;
}

.service-item.reverse .service-visual {
  order: 1;
}

.service-item:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-md);
}

.service-number {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-primary-light);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.service-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.service-lead {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.service-text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.8;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.service-features span {
  color: var(--color-primary);
  font-weight: 800;
}

/* Service Visual Elements */
.service-visual {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 30px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 220px;
}

.visual-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-primary);
  background: #ffffff;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.code-box {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  color: var(--color-primary);
  background: #ffffff;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.code-line:first-child {
  color: var(--color-text-sub);
}

.tech-stack-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.tech-pill {
  background: #ffffff;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.talent-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  text-align: center;
  margin-top: 10px;
}

.metric-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  padding: 16px 8px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.metric-val {
  display: block;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.metric-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Strengths Section */
.strengths {
  background: var(--color-bg-subtle);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.strength-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px 30px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.strength-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.strength-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: #c3e6cb;
  margin-bottom: 10px;
}

.strength-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.strength-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* Flow Section */
.flow {
  background: #ffffff;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.flow-step {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 34px 22px;
  text-align: center;
  position: relative;
}

.step-circle {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.flow-step h4 {
  font-size: 1.1rem;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Company Section */
.company {
  background: var(--color-bg-subtle);
}

.company-wrapper {
  max-width: 820px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 22px 28px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-table th {
  width: 25%;
  color: var(--color-text-muted);
  font-weight: 600;
  background: var(--color-bg-subtle);
  vertical-align: top;
}

.company-table td {
  color: var(--color-text-main);
  line-height: 1.8;
}

.company-table td a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Contact Section */
.contact {
  background: #ffffff;
}

.contact-box {
  max-width: 820px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 50px;
  box-shadow: var(--shadow-md);
}

.contact-header {
  text-align: center;
  margin-bottom: 38px;
}

.text-white {
  color: var(--color-text-main) !important;
}

.contact-lead {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-top: 12px;
  line-height: 1.75;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.required {
  color: #dc2626;
  font-size: 0.75rem;
  margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  background: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(36, 94, 67, 0.15);
}

.form-privacy {
  margin: 8px 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.form-privacy input {
  margin-right: 6px;
}

.form-turnstile {
  display: flex;
  justify-content: center;
  margin: 10px 0 15px;
}

.contact-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 15px;
  text-align: center;
}

.contact-success {
  text-align: center;
  padding: 40px 20px;
}

.success-icon {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.contact-success h3 {
  font-size: 1.45rem;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.contact-success p {
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  background: #15271e;
  color: #d1fae5;
  padding: 60px 0 30px;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.footer-brand .brand-logo {
  color: #ffffff;
}

.footer-brand .logo-mark {
  background: #ffffff;
  color: var(--color-primary);
}

.footer-brand .logo-text {
  color: #ffffff;
}

.footer-brand .logo-sub {
  color: #86efac;
}

.footer-desc {
  font-size: 0.85rem;
  color: #94a39b;
  margin-top: 10px;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 0.9rem;
  color: #cbd5e1;
}

.footer-nav a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: #8da498;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .about-grid,
  .strengths-grid {
    grid-template-columns: 1fr;
  }
  .service-item,
  .service-item.reverse {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .service-item.reverse .service-content {
    order: 1;
  }
  .service-item.reverse .service-visual {
    order: 2;
  }
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-toggle {
    display: block;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-box {
    padding: 30px 20px;
  }

  .company-table th {
    width: 35%;
  }

  .footer-container {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}