/*
Theme Name: K.Account Partners マイクロ法人LP
Theme URI: https://micro.kap-cpa.com/
Author: 原尾公認会計士事務所
Author URI: https://micro.kap-cpa.com/
Description: 個人事業主＋マイクロ法人向け手取り比較シミュレーション＆税務サポートLPテーマ
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kap-micro-corp
*/

/* ==========================================================================
   K.Account Partners / 原尾公認会計士事務所
   マイクロ法人特化 LP スタイルシート
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root {
  /* カラーシステム */
  --color-primary: #0f2b48;       /* 濃紺（メインブランド） */
  --color-primary-light: #1e3a8a; /* 落ち着いたロイヤルブルー */
  --color-secondary: #334155;     /* ダークグレー（サブテキスト・ヘッダー） */
  --color-accent: #d97706;        /* ディープアンバー/ゴールド（強調用） */
  --color-accent-hover: #b45309;  /* アクセントホバー */
  --color-cta: #1e40af;           /* メインCTAボタン（深みのあるブルー） */
  --color-cta-hover: #1d4ed8;     /* CTAホバー */
  
  --color-bg-white: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-bg-dark: #0f172a;
  
  --color-text-main: #1e293b;
  --color-text-sub: #475569;
  --color-text-muted: #64748b;
  --color-text-white: #ffffff;
  
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;

  /* タイポグラフィ */
  --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* コンテナ幅 */
  --container-max-width: 1040px;
  --container-narrow-width: 760px;
}

/* リセット＆基本スタイル */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
}

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

/* レイアウト・コンテナ */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 64px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 96px 0;
  }
}

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

.section-bg-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-white);
}

/* ヘッダー */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.header-logo {
  display: flex;
  flex-direction: column;
}

.header-logo-org {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.header-logo-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.header-cta-btn:hover {
  background-color: var(--color-primary-light);
  text-decoration: none;
}

/* セクション共通見出し */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-description {
  margin-top: 16px;
  font-size: 1rem;
  color: var(--color-text-sub);
}

/* 1. ファーストビュー (FV) */
.hero {
  padding: 40px 0 64px;
  background-color: #f8fafc;
  background-image: radial-gradient(#e2e8f0 1px, transparent 1px);
  background-size: 24px 24px;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .hero {
    padding: 64px 0 80px;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.25fr 0.9fr;
    gap: 40px;
  }
}

.hero-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 32px 24px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
}

@media (min-width: 768px) {
  .hero-box {
    padding: 40px 36px;
  }
}

.hero-image-box {
  position: relative;
}

.hero-image-box img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.hero-image-caption {
  position: absolute;
  bottom: -16px;
  right: 16px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.hero-badge {
  display: inline-block;
  background-color: #eff6ff;
  color: var(--color-primary-light);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid #bfdbfe;
  margin-bottom: 16px;
}

.hero-title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 2.35rem;
  }
}

.hero-sub {
  font-size: 1rem;
  color: var(--color-text-sub);
  margin-bottom: 24px;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .hero-sub {
    font-size: 1.1rem;
  }
}

/* FV内の料金表示カード */
.hero-price-card {
  background: var(--color-bg-light);
  border: 2px solid var(--color-primary);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 640px) {
  .hero-price-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.hero-price-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-price-sublabel {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

.hero-price-values {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-price-monthly {
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.hero-price-monthly strong {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 2px;
}

.hero-price-yearly {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* CTAボタン */
.cta-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 640px) {
  .cta-group {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-cta);
  color: #ffffff;
  font-size: 0.925rem;
  font-weight: 700;
  padding: 14px 18px;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
  border: none;
  cursor: pointer;
  width: 100%;
  white-space: nowrap;
}

@media (min-width: 640px) {
  .btn-primary {
    width: auto;
  }
}

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(30, 64, 175, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  color: var(--color-primary);
  font-size: 0.925rem;
  font-weight: 700;
  padding: 14px 18px;
  border-radius: 6px;
  border: 2px solid var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  width: 100%;
  white-space: nowrap;
}

@media (min-width: 640px) {
  .btn-secondary {
    width: auto;
  }
}

.btn-secondary:hover {
  background-color: var(--color-bg-light);
  text-decoration: none;
}

.hero-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 14px;
}

/* 画像＋テキストメディアブロック */
.media-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 40px;
}

@media (min-width: 768px) {
  .media-block {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .media-block.reverse {
    direction: rtl;
  }
  .media-block.reverse > * {
    direction: ltr;
  }
}

.media-block-img img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--color-border);
}

/* 2. こんなお悩みありませんか？ */
.trouble-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .trouble-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.trouble-item {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: 4px;
  padding: 18px 20px;
  font-weight: 500;
  font-size: 0.975rem;
  color: var(--color-text-main);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.trouble-item-icon {
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* 3. なぜ社会保険料が変わるのか（仕組み図解） */
.scheme-comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .scheme-comparison {
    grid-template-columns: 1fr 1fr;
  }
}

.scheme-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 28px 24px;
}

.scheme-box-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 20px;
  text-align: center;
}

.scheme-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.scheme-step {
  width: 100%;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
}

.scheme-arrow {
  color: var(--color-text-muted);
  font-weight: bold;
}

.scheme-result {
  width: 100%;
  background: #eff6ff;
  border: 1px solid #93c5fd;
  border-radius: 6px;
  padding: 16px;
  text-align: center;
}

.scheme-result-title {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.scheme-result-item {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary-light);
}

.scheme-disclaimer {
  background: #fffbeeb0;
  border: 1px solid #fde68a;
  border-radius: 6px;
  padding: 16px 20px;
  font-size: 0.875rem;
  color: #92400e;
}

/* 4. モデルケース */
.model-case-card {
  background: #ffffff;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  padding: 32px 24px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .model-case-card {
    padding: 40px;
  }
}

.model-case-header {
  text-align: center;
  margin-bottom: 32px;
}

.model-case-profile-tag {
  display: inline-block;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.model-case-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}

.model-case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

@media (min-width: 640px) {
  .model-case-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.model-case-box {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 20px;
  text-align: center;
}

.model-case-box-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.model-case-box-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.model-case-box-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.model-case-box.highlight {
  background: #eff6ff;
  border-color: #93c5fd;
}

.model-case-box.highlight .model-case-box-amount {
  color: var(--color-primary-light);
}

.model-case-diff-banner {
  background: #fef3c7;
  border: 2px dashed #d97706;
  border-radius: 6px;
  padding: 20px;
  text-align: center;
}

.model-case-diff-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: #b45309;
}

.model-case-diff-value {
  font-size: 2rem;
  font-weight: 700;
  color: #92400e;
  line-height: 1.2;
  margin-top: 4px;
}

@media (min-width: 768px) {
  .model-case-diff-value {
    font-size: 2.5rem;
  }
}

.model-case-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: 24px;
}

/* 5. シミュレーター導線エリア */
.sim-card {
  background: linear-gradient(135deg, #0f2b48 0%, #1e3a8a 100%);
  color: #ffffff;
  border-radius: 8px;
  padding: 36px 24px;
  text-align: center;
}

@media (min-width: 768px) {
  .sim-card {
    padding: 48px;
  }
}

.sim-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.sim-card-text {
  font-size: 1rem;
  color: #cbd5e1;
  margin-bottom: 28px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  white-space: nowrap;
}

.btn-white:hover {
  background-color: #f8fafc;
  text-decoration: none;
  transform: translateY(-1px);
}

/* 6. 注意喚起 / 有利とは限らない */
.warning-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-top: 4px solid #dc2626;
  border-radius: 6px;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .warning-box {
    padding: 40px;
  }
}

.warning-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 24px 0 32px;
}

@media (min-width: 640px) {
  .warning-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.warning-item {
  background: var(--color-bg-light);
  padding: 16px;
  border-radius: 4px;
  font-size: 0.95rem;
  color: var(--color-text-main);
  border-left: 3px solid #94a3b8;
}

.warning-highlight-banner {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 20px;
  text-align: center;
  color: #991b1b;
  font-weight: 700;
  font-size: 1.05rem;
}

/* 7. 社保削減スキームとの違い */
.difference-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .difference-box {
    padding: 40px;
  }
}

.difference-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.difference-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--color-bg-light);
  padding: 14px 18px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 500;
}

.difference-item-check {
  color: var(--color-primary-light);
  font-weight: bold;
}

/* 8. 法人設立だけで終わらせない */
.support-scope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.support-scope-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px;
}

.support-scope-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.support-scope-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-sub);
}

/* 9. 当事務所だから月5万円の理由 */
.reason-price-table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.reason-price-table th,
.reason-price-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.reason-price-table th {
  background: var(--color-bg-light);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.reason-price-table tr.highlight-row {
  background: #eff6ff;
}

.reason-price-table tr.highlight-row td {
  font-weight: 700;
  color: var(--color-primary-light);
}

/* 10. プラン詳細 */
.plan-detail-card {
  background: #ffffff;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .plan-detail-card {
    padding: 44px;
  }
}

.plan-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .plan-columns {
    grid-template-columns: repeat(3, 1fr);
  }
}

.plan-column-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary-light);
  margin-bottom: 16px;
}

.plan-feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plan-feature-item {
  font-size: 0.9rem;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-feature-item::before {
  content: "✓";
  color: var(--color-primary-light);
  font-weight: bold;
}

.establishment-note-box {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 20px;
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.6;
}

/* 11. 向いている人・向いていない人 */
.suitability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .suitability-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.suitability-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 28px 24px;
}

.suitability-box.suitable {
  border-top: 4px solid #16a34a;
}

.suitability-box.unsuitable {
  border-top: 4px solid #dc2626;
}

.suitability-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.suitability-box.suitable .suitability-title {
  color: #16a34a;
}

.suitability-box.unsuitable .suitability-title {
  color: #dc2626;
}

.suitability-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

/* 13. FAQ アコーディオン */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 16px;
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
  color: var(--color-text-muted);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background: var(--color-bg-light);
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 20px 24px;
  border-top-color: var(--color-border);
}

.faq-answer-text {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* 14. 最終CTA & お問い合わせフォーム */
.contact-section {
  background: var(--color-bg-light);
}

.contact-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 32px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

@media (min-width: 768px) {
  .contact-box {
    padding: 48px;
  }
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form-label-required {
  background: #ef4444;
  color: #ffffff;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 8px;
}

.form-label-optional {
  background: #94a3b8;
  color: #ffffff;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  border: 1px solid var(--color-border-dark);
  border-radius: 6px;
  background: #ffffff;
  color: var(--color-text-main);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-radio-group,
.form-select {
  width: 100%;
}

.form-radio-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-right: 20px;
  margin-bottom: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn-submit {
  width: 100%;
  padding: 18px 24px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-cta);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 14px rgba(30, 64, 175, 0.3);
  white-space: nowrap;
}

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

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 16px;
}

/* 送信完了表示・モーダル・メッセージ */
.form-success-msg {
  display: none;
  background: #f0fdf4;
  border: 2px solid #22c55e;
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
}

.form-success-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #15803d;
  margin-bottom: 12px;
}

.form-success-text {
  font-size: 1rem;
  color: #166534;
}

/* フッター */
.footer {
  background: var(--color-bg-dark);
  color: #94a3b8;
  padding: 48px 0 24px;
  font-size: 0.875rem;
  border-top: 1px solid #1e293b;
}

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

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-company {
  font-weight: 600;
  color: #ffffff;
}

.footer-subdomain {
  font-size: 0.8rem;
  color: #64748b;
}

.footer-copyright {
  margin-top: 24px;
  text-align: center;
  color: #64748b;
  font-size: 0.8rem;
}