:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-surface-elevated: #ffffff;
  --color-border: #e2e8f0;
  --color-border-focus: #3b82f6;
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-light: #94a3b8;
  --color-brand: #0284c7;
  --color-brand-hover: #0369a1;
  --color-accent: #059669;
  --color-accent-subtle: #ecfdf5;
  --color-navy: #0f172a;
  --color-card-dark: #1e293b;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --container-max: 1200px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--color-navy);
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 10px;
}

:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 2rem);
  padding-right: clamp(1rem, 4vw, 2rem);
}

.section {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.section-subtle {
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.35rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); margin-bottom: 0.75rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-muted);
}
p:last-child { margin-bottom: 0; }

.text-brand { color: var(--color-brand); }
.text-accent { color: var(--color-accent); }
.mono { font-family: var(--font-mono); }

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-main);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.brand-logo svg {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-left: 4px;
  padding-left: 8px;
  border-left: 1px solid var(--color-border);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

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

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-navy);
  color: #fff !important;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.1s ease;
}

.nav-btn:hover {
  background: var(--color-brand);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-main);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-brand);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}
.btn-primary:hover {
  background-color: var(--color-brand-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-text-muted);
}

.btn-dark {
  background-color: var(--color-navy);
  color: #ffffff;
}
.btn-dark:hover {
  background-color: #1e293b;
}

/* Hero Section */
.hero {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.hero-title {
  margin-bottom: 1.25rem;
  color: var(--color-navy);
}

.hero-desc {
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.hero-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-navy);
  font-family: var(--font-mono);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.hero-graphic {
  position: relative;
  background: var(--color-card-dark);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  color: #fff;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Cards & Grids */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(2, 132, 199, 0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-brand);
}

/* Section Header */
.section-header {
  max-width: 680px;
  margin-bottom: 3.5rem;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand);
  margin-bottom: 0.5rem;
}

/* Steps / Process */
.step-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-brand);
  opacity: 0.6;
  margin-bottom: 0.75rem;
}

/* Pricing Card */
.pricing-wrapper {
  max-width: 720px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-surface);
  border: 2px solid var(--color-navy);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.pricing-tag {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.pricing-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.75rem;
}

.price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.price-val {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-navy);
  line-height: 1;
}

.price-unit {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 0.85rem;
  color: var(--color-text-main);
  font-size: 0.975rem;
}

.pricing-features svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--color-brand);
}

.faq-summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-brand);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
}

.faq-content {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-surface-subtle);
  padding-top: 1rem;
}

/* Contact Details Box */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 42px;
  height: 42px;
  background: var(--color-surface-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand);
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
}

.contact-info-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-main);
  word-break: break-all;
}

.contact-info-val a {
  color: var(--color-navy);
  text-decoration: none;
}
.contact-info-val a:hover {
  color: var(--color-brand);
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background-color: var(--color-navy);
  color: #94a3b8;
  padding-top: 4rem;
  padding-bottom: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h4 {
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

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

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 480px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  z-index: 999;
  display: none;
}

.cookie-banner.show {
  display: block;
}

.cookie-content {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
}

.cookie-btn-accept {
  flex: 1;
  background: var(--color-brand);
  color: #fff;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}

.cookie-btn-decline {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    display: none;
    gap: 1.25rem;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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