:root {
  /* ライトテーマ - 青系カラースキーム */
  --primary: #0066ff;
  --primary-light: #00b8ff;
  --primary-dark: #003d7a;
  --accent: #EC008C; /* マゼンタ - ロゴカラー維持 */
  
  --bg: #ffffff;
  --bg-alt: #f8f9fa;
  --panel: #ffffff;
  --text: #212529;
  --text-muted: #6c757d;
  --line: rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 10px 16px;
  background: var(--primary);
  color: white;
  border-radius: 8px;
  z-index: 9999;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

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

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  transition: color 0.2s ease;
  display: none;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  border: 2px solid transparent;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

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

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

.btn-contact {
  display: none;
}

.menu-btn {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.menu-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

.menu-icon {
  display: block;
  width: 18px;
  height: 14px;
  margin: 0 auto;
  background:
    linear-gradient(currentColor, currentColor) 0 0/100% 2px,
    linear-gradient(currentColor, currentColor) 0 50%/100% 2px,
    linear-gradient(currentColor, currentColor) 0 100%/100% 2px;
  background-repeat: no-repeat;
}

/* Hero */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: linear-gradient(135deg, #e3f2ff 0%, #ffffff 50%, #e8f4ff 100%);
}

/* hero-media は使用しない（背景画像なし・グラデーションのみ） */

.hero-inner {
  position: relative;
  padding: 40px 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
  margin-bottom: 16px;
}

.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--primary);
}

.hero-title {
  margin: 0 0 20px;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--text);
  font-weight: 800;
}

.hero-lead {
  max-width: 600px;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1.8;
  margin: 0 0 32px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Section */
.section {
  padding: 56px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 36px;
}

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

.section-title {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 800;
}

.section-subtitle {
  margin: 12px 0 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

.section-header.center .section-subtitle {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Card */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

/* Feature */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px 24px;
  text-align: center;
}

.feature-num {
  font-size: 14px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.card-title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.card-text {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Plan */
.plan-grid-top,
.plan-grid-bottom {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.plan-grid-bottom {
  grid-template-columns: repeat(2, 1fr);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 0;
}

.plan-card {
  padding: 32px 24px;
  position: relative;
  text-align: center;
  transition: all 0.3s ease;
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 102, 255, 0.15);
}

.plan-popular {
  border-color: var(--primary);
  border-width: 2px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.03), rgba(0, 184, 255, 0.03));
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
}

.plan-name {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
}

.plan-desc {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.plan-price {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin: 16px 0 24px;
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.plan-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.plan-features li:last-child {
  border-bottom: none;
}

/* Option */
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.option-card {
  padding: 28px 24px;
  text-align: center;
}

.option-name {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.option-desc {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.option-price {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}

.area-note {
  text-align: center;
  margin-top: 32px;
  color: var(--text-muted);
  font-size: 14px;
}

/* Equipment */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.equipment-card {
  padding: 32px 24px;
  text-align: center;
}

.equipment-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.equipment-name {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.equipment-list {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--text-muted);
}

.equipment-list li {
  padding: 6px 0;
}

/* Free */
.free-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.free-card {
  padding: 32px 24px;
  text-align: center;
  border: 2px solid var(--primary-light);
  background: linear-gradient(135deg, rgba(0, 184, 255, 0.05), rgba(0, 102, 255, 0.05));
}

.free-name {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.free-desc {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-question {
  padding: 20px 24px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: var(--bg-alt);
}

.faq-question::after {
  content: "+";
  font-size: 24px;
  color: var(--primary);
  transition: transform 0.2s ease;
}

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

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto 48px;
}

.contact-grid-single {
  grid-template-columns: 1fr;
  max-width: 480px;
}

.contact-card {
  padding: 32px 24px;
  text-align: center;
}

.contact-card-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.contact-card-desc {
  margin: 0 0 24px;
  color: var(--text-muted);
  font-size: 14px;
}

.banner-link {
  display: block;
  padding: 24px 20px;
  border-radius: 12px;
  border: 2px solid var(--primary);
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 184, 255, 0.08));
  text-decoration: none;
  transition: all 0.3s ease;
}

.banner-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.2);
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.12), rgba(0, 184, 255, 0.12));
}

.banner-title {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.banner-note {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}

.company-info {
  text-align: center;
  margin-top: 12px;
}

.company-info p {
  margin: 4px 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  background: var(--bg-alt);
}

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

.footer-logo {
  width: 180px;
  height: auto;
  margin: 0 auto 12px;
  opacity: 0.8;
}

.footer-inner small {
  display: block;
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 12px;
}

/* Drawer */
.drawer {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: min(360px, 85vw);
  background: white;
  border-left: 1px solid var(--line);
  transform: translateX(105%);
  transition: transform 0.3s ease;
  z-index: 60;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
}

.drawer.open {
  transform: translateX(0);
}

.drawer-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 20px;
}

.drawer-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 24px;
}

.drawer-close {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
}

.drawer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.drawer-nav li {
  margin-bottom: 8px;
}

.drawer-link {
  display: block;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--bg-alt);
  color: var(--text);
  font-weight: 700;
  transition: all 0.2s ease;
}

.drawer-link:hover {
  background: var(--primary-light);
  color: white;
}

.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  z-index: 55;
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (min-width: 768px) {
  .nav-link {
    display: block;
  }
  
  .btn-contact {
    display: inline-flex;
  }
  
  .menu-btn {
    display: none;
  }
}

@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .plan-grid-top {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .plan-grid-bottom {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
  
  .option-grid,
  .equipment-grid,
  .free-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 40px 0;
  }
  
  .hero {
    min-height: 50vh;
  }
  
  .hero-inner {
    padding: 32px 0;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-lead {
    font-size: 16px;
  }
}

.sp-only {
  display: none;
}

@media (max-width: 560px) {
  .sp-only {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  .reveal {
    opacity: 1;
    transform: none;
  }
}