/* ============================================================
   自社LP スタイルシート
   静的HTML/CSSのみで構成。JSはFAQアコーディオン等の最小限UI用途のみ。
   ============================================================ */

:root {
  --color-navy: #12213f;
  --color-navy-dark: #0b1730;
  --color-blue: #2f5cff;
  --color-blue-dark: #1e3fc4;
  --color-accent: #ff8a3d;
  --color-bg: #ffffff;
  --color-bg-soft: #f5f7fb;
  --color-text: #1c2434;
  --color-text-muted: #5b6478;
  --color-border: #e2e6ef;
  --radius: 12px;
  --max-width: 1120px;
  --font-base: "Hiragino Sans", "Yu Gothic UI", "Segoe UI", Meiryo, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 16px;
}

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

a {
  color: inherit;
}

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

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--color-navy);
}

.section-lead {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 720px;
  margin: 0 auto 40px;
}

.disclaimer {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 24px;
}

/* ============ Buttons ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

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

.btn-secondary {
  background: #fff;
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.btn-secondary-inverse {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

.btn-small {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

/* ============ Header ============ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-navy);
  text-decoration: none;
  white-space: nowrap;
}

.logo-note {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.main-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--color-text);
}

.main-nav a:hover {
  color: var(--color-blue);
}

/* ============ Hero ============ */

.hero {
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: #fff;
  padding: 88px 0 72px;
}

.hero-inner {
  text-align: center;
  max-width: 820px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: #9fb3ff;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 2.1rem;
  line-height: 1.55;
  margin: 0 0 24px;
}

.hero-lead {
  color: #cfd7ec;
  font-size: 1.02rem;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.hero-note {
  font-size: 0.82rem;
  color: #9aa6c4;
}

/* ============ Scroll markers (GA4フック用・非表示要素) ============ */

.scroll-marker {
  height: 1px;
  width: 100%;
}

/* ============ Before / After ============ */

.before-after {
  padding: 80px 0;
  background: var(--color-bg-soft);
}

.ba-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.ba-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.ba-card h3 {
  margin-top: 0;
  color: var(--color-navy);
  font-size: 1.1rem;
}

.ba-row {
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.ba-row p {
  margin: 6px 0 0;
  font-size: 0.92rem;
}

.ba-label {
  display: inline-block;
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 2px 10px;
  border-radius: 999px;
}

.ba-before {
  background: #fdf1ec;
}

.ba-before .ba-label {
  background: #f3c9b6;
  color: #7a3a1a;
}

.ba-after {
  background: #eef4ff;
  margin-bottom: 0;
}

.ba-after .ba-label {
  background: #c6d6ff;
  color: var(--color-blue-dark);
}

/* ============ Service ============ */

.service {
  padding: 80px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.service-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  background: #fff;
}

.service-icon {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-blue);
  border: 2px solid var(--color-blue);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.service-card h3 {
  margin: 0 0 10px;
  color: var(--color-navy);
  font-size: 1.05rem;
}

.service-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* ============ Process ============ */

.process {
  padding: 80px 0;
  background: var(--color-bg-soft);
}

.process-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.process-steps li {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.step-num {
  display: inline-block;
  font-weight: 800;
  font-size: 0.75rem;
  color: var(--color-blue);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.process-steps h3 {
  margin: 0 0 10px;
  color: var(--color-navy);
  font-size: 1rem;
}

.process-steps p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============ FAQ ============ */

.faq {
  padding: 80px 0;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
  border: none;
  text-align: left;
  padding: 18px 20px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-navy);
  cursor: pointer;
}

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

.faq-icon {
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--color-blue);
  transition: transform 0.2s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px 20px;
  background: #fff;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.faq-answer p {
  margin: 0;
}

/* ============ CTA band ============ */

.cta-band {
  background: linear-gradient(160deg, var(--color-blue) 0%, var(--color-blue-dark) 100%);
  color: #fff;
  padding: 64px 0;
  text-align: center;
}

.cta-band-inner h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
}

.cta-band-inner p {
  margin: 0 0 28px;
  color: #dbe4ff;
}

/* ============ Contact ============ */

.contact {
  padding: 80px 0;
  background: var(--color-bg-soft);
}

.contact-inner {
  max-width: 620px;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.form-field {
  margin-bottom: 20px;
}

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

.required {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: 999px;
  vertical-align: middle;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fbfcfe;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--color-blue);
  outline-offset: 1px;
  background: #fff;
}

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

/* ハニーポット（人間には見えない。display:noneではなく画面外配置でボット検知率を上げる） */
.form-field--honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
  height: 0;
  width: 0;
  overflow: hidden;
}

.form-status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  text-align: center;
}

.form-status--pending {
  background: var(--color-bg-soft);
  color: var(--color-text-muted);
}

.form-status--success {
  background: #e8f6ec;
  color: #1e7a34;
  border: 1px solid #bfe6c9;
}

.form-status--error {
  background: #fdecec;
  color: #c0392b;
  border: 1px solid #f3c6c2;
}

/* ============ Footer ============ */

.site-footer {
  background: var(--color-navy-dark);
  color: #aab4d0;
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.footer-brand {
  color: #fff;
  font-weight: 700;
  margin: 0;
}

.footer-sns {
  display: flex;
  gap: 20px;
}

.sns-link {
  text-decoration: none;
  color: #aab4d0;
  font-size: 0.85rem;
}

.sns-link:hover {
  color: #fff;
}

.footer-copy {
  font-size: 0.75rem;
  margin: 0;
}

/* ============ Responsive ============ */

@media (max-width: 780px) {
  .main-nav {
    display: none;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .section-title {
    font-size: 1.4rem;
  }
}