/* ========================================
   lp.css - OAフロント専用サイト メインスタイル
   対象: index.html (itf-oa.jp)
   ======================================== */

/* ----------------------------------------
   Header
   ---------------------------------------- */
.lp-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.97);
}

.lp-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lp-header .site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0066cc;
  text-decoration: none;
}

.lp-header .site-logo:hover {
  text-decoration: none;
}

.site-logo-img {
  height: 44px;
  width: auto;
  display: block;
}

.site-logo-text {
  font-size: 1.25rem;
  font-weight: bold;
  white-space: nowrap;
}

.lp-header .site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

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

.nav-links a {
  color: #444;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #0066cc;
  text-decoration: none;
}

.btn-cta-header {
  background-color: #ff6600;
  color: #fff;
  white-space: nowrap;
}

/* ハンバーガートグル（スマホ用） */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #333;
  border-radius: 2px;
}

/* ----------------------------------------
   FV - ファーストビュー
   ---------------------------------------- */
.fv-section {
  background: linear-gradient(135deg, #003d80 0%, #0066cc 60%, #0080e0 100%);
  color: #fff;
  padding: 80px 0 60px;
}

.fv-inner {
  display: flex;
  align-items: center;
  gap: 48px;
}

.fv-text {
  flex: 1;
}

.fv-label {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 100px;
  padding: 6px 20px;
  font-size: 0.875rem;
  margin-bottom: 20px;
}

.fv-heading {
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.5;
  margin-bottom: 20px;
}

.fv-sub {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.92;
  margin-bottom: 32px;
}

.btn-cta-fv {
  background-color: #ff6600;
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 102, 0, 0.35);
}

.fv-badges {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.fv-badges li {
  font-size: 0.8125rem;
  opacity: 0.85;
  padding-left: 18px;
  position: relative;
}

.fv-badges li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  font-weight: bold;
}

.fv-image {
  flex: 0 0 440px;
}

.fv-screenshot {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

/* ----------------------------------------
   Problem - 課題提起
   ---------------------------------------- */
.problem-section {
  background-color: #fff8f0;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.problem-card {
  background-color: #fff;
  border: 1px solid #f0e0d0;
  border-radius: 10px;
  padding: 28px 24px;
  text-align: center;
}

.problem-icon {
  display: block;
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #555;
}

/* ----------------------------------------
   Solution - 解決策
   ---------------------------------------- */
.solution-section {
  background-color: #f0f8ff;
}

.solution-showcase {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  max-width: 1000px;
  margin: 0 auto;
}

.solution-image {
  flex: 0 0 420px;
}

.solution-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.solution-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution-card {
  background-color: #fff;
  border-radius: 10px;
  padding: 24px 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: relative;
}

.solution-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #0066cc;
  color: #fff;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 16px;
}

.solution-card h3 {
  font-size: 1.0625rem;
  font-weight: bold;
  margin-bottom: 8px;
  color: #222;
}

.solution-card p {
  font-size: 0.9375rem;
  color: #555;
  line-height: 1.7;
}

/* ----------------------------------------
   Proof - 選ばれる理由
   ---------------------------------------- */
.proof-section {
  background-color: #fafafa;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 860px;
  margin: 0 auto;
}

.proof-card {
  background-color: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.proof-image {
  background-color: #f4f7fb;
  border-bottom: 1px solid #e8edf4;
  overflow: hidden;
}

.proof-image img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: top left;
}

/* アラートメール画像（縦長スマホ画面）用 */
.proof-image--mail {
  display: flex;
  justify-content: center;
  background-color: #f4f7fb;
  padding: 12px 0;
}

.proof-image--mail img {
  width: auto;
  height: 220px;
  object-fit: contain;
  object-position: center top;
}

.proof-card h3 {
  font-size: 1.0625rem;
  font-weight: bold;
  padding: 20px 24px 8px;
  color: #222;
}

.proof-card p {
  font-size: 0.9375rem;
  color: #555;
  line-height: 1.7;
  padding: 0 24px 24px;
}

/* ----------------------------------------
   Pricing - 料金プラン
   ---------------------------------------- */
.pricing-section {
  background-color: #fff;
  text-align: center;
}

.pricing-note {
  font-size: 0.9375rem;
  color: #666;
  margin-bottom: 36px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
  align-items: start;
}

.pricing-card {
  background-color: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  overflow: hidden;
  text-align: center;
  position: relative;
}

.pricing-card--recommended {
  border: 2px solid #0066cc;
  box-shadow: 0 4px 20px rgba(0, 102, 204, 0.15);
}

.pricing-badge {
  background-color: #0066cc;
  color: #fff;
  font-size: 0.75rem;
  font-weight: bold;
  padding: 6px 0;
  text-align: center;
}

.pricing-card-header {
  padding: 28px 20px 20px;
}

.pricing-card-header h3 {
  font-size: 1.125rem;
  font-weight: bold;
  margin-bottom: 8px;
  color: #222;
}

.pricing-price {
  font-size: 0.9375rem;
  color: #555;
}

.pricing-price strong {
  font-size: 1.75rem;
  color: #0066cc;
}

.pricing-features {
  text-align: left;
  padding: 0 24px 28px;
}

.pricing-features li {
  padding: 8px 0 8px 22px;
  position: relative;
  font-size: 0.9375rem;
  color: #444;
  border-bottom: 1px solid #f0f0f0;
}

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

.pricing-features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: #0066cc;
  font-weight: bold;
}

/* ----------------------------------------
   Flow - 導入ステップ
   ---------------------------------------- */
.flow-section {
  background-color: #f0f8ff;
}

.flow-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
}

.flow-step {
  flex: 1;
  text-align: center;
  padding: 0 16px;
}

.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: #0066cc;
  color: #fff;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 16px;
}

.flow-step h3 {
  font-size: 1rem;
  font-weight: bold;
  margin-bottom: 8px;
  color: #222;
}

.flow-step p {
  font-size: 0.875rem;
  color: #666;
  line-height: 1.6;
}

.flow-arrow {
  flex: 0 0 32px;
  height: 2px;
  background-color: #bbd4ee;
  margin-top: 24px;
  position: relative;
}

.flow-arrow::after {
  content: "";
  position: absolute;
  right: -4px;
  top: -4px;
  border: 5px solid transparent;
  border-left-color: #bbd4ee;
}

.flow-notes {
  text-align: center;
  margin-top: 32px;
  font-size: 0.875rem;
  color: #666;
}

/* ----------------------------------------
   FAQ - よくある質問
   ---------------------------------------- */
.faq-section {
  background-color: #fff;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid #e8e8e8;
  padding: 24px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-size: 1rem;
  font-weight: bold;
  color: #222;
  margin-bottom: 10px;
  padding-left: 28px;
  position: relative;
}

.faq-question::before {
  content: "Q";
  position: absolute;
  left: 0;
  color: #0066cc;
  font-weight: bold;
  font-size: 1.0625rem;
}

.faq-answer {
  font-size: 0.9375rem;
  color: #555;
  line-height: 1.8;
  padding-left: 28px;
  position: relative;
}

.faq-answer::before {
  content: "A";
  position: absolute;
  left: 0;
  color: #ff6600;
  font-weight: bold;
  font-size: 1.0625rem;
}

/* ----------------------------------------
   CTA - 最終アクション
   ---------------------------------------- */
.cta-section {
  background: linear-gradient(135deg, #003d80 0%, #0066cc 60%, #0080e0 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta-section .section-title {
  color: #fff;
  font-size: 1.75rem;
}

.cta-lead {
  font-size: 1.0625rem;
  opacity: 0.92;
  margin-bottom: 8px;
}

.btn-cta-main {
  background-color: #ff6600;
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 102, 0, 0.35);
  margin: 28px 0 20px;
}

.cta-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-badges li {
  font-size: 0.8125rem;
  opacity: 0.85;
  padding-left: 18px;
  position: relative;
}

.cta-badges li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.lp-footer {
  background-color: #1a1a2e;
  color: #999;
  padding: 32px 0;
}

.footer-service {
  font-size: 1rem;
  font-weight: bold;
  color: #ccc;
  margin-bottom: 4px;
}

.footer-company {
  font-size: 0.8125rem;
  color: #888;
  margin-bottom: 8px;
}

.footer-company-link {
  color: #aab;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.footer-company-link:hover {
  color: #ccd;
  border-bottom-color: #ccd;
  text-decoration: none;
}

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

/* ========================================
   レスポンシブ（768px以下）
   ======================================== */
@media (max-width: 768px) {

  /* Header */
  .site-logo-img {
    height: 36px;
  }

  .site-logo-text {
    font-size: 1.0625rem;
  }

  .lp-header .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .lp-header.nav-open .site-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 16px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

  .lp-header.nav-open .nav-links {
    flex-direction: column;
    gap: 12px;
  }

  .lp-header.nav-open .nav-links a {
    font-size: 1rem;
    padding: 8px 0;
  }

  .lp-header.nav-open .btn-cta-header {
    text-align: center;
    margin-top: 8px;
  }

  /* FV */
  .fv-section {
    padding: 56px 0 48px;
  }

  .fv-inner {
    flex-direction: column;
    gap: 32px;
    text-align: center;
  }

  .fv-heading {
    font-size: 1.5rem;
  }

  .fv-sub {
    font-size: 0.9375rem;
  }

  .fv-sub br {
    display: none;
  }

  .fv-badges {
    justify-content: center;
  }

  .fv-image {
    flex: none;
    width: 100%;
  }

  /* Problem */
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Solution */
  .solution-showcase {
    flex-direction: column;
    gap: 24px;
  }

  .solution-image {
    flex: none;
    width: 100%;
  }

  /* Proof */
  .proof-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 400px;
  }

  /* Flow */
  .flow-grid {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .flow-step {
    padding: 16px 0;
  }

  .flow-arrow {
    width: 2px;
    height: 24px;
    flex: 0 0 24px;
    margin-top: 0;
  }

  .flow-arrow::after {
    right: auto;
    top: auto;
    bottom: -4px;
    left: -4px;
    border: 5px solid transparent;
    border-top-color: #bbd4ee;
    border-left-color: transparent;
  }

  /* CTA */
  .cta-section {
    padding: 56px 0;
  }

  .cta-section .section-title {
    font-size: 1.375rem;
  }

  .cta-badges {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
}