/* ============================================================
   common.css
   15本のLPで共通利用するスタイル
   ============================================================ */


/* ------------------------------------------------------------
   カスタムプロパティ
   ------------------------------------------------------------ */

:root {
  /* ブランドカラー */
  --color-black:  #1A1A1A;
  --color-ivory:  #F5F5F0;
  --color-yellow: #F5C400;
  --color-gold:   #B88A2A;
  --color-white:  #FFFFFF;
  --color-text:   #1A1A1A;
  --color-muted:  #808080;

  /* レイアウト */
  --content-width:      1200px;
  --content-padding-pc: 40px;
  --content-padding-sp: 20px;

  /* セクション余白 */
  --section-space-pc: 120px;
  --section-space-sp: 72px;

  /* ヘッダー */
  --header-height-pc: 72px;
  --header-height-sp: 60px;
}


/* ------------------------------------------------------------
   フォント
   ------------------------------------------------------------ */

/* Google Fonts は index.html の <head> で読み込む */

body {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
}


/* ------------------------------------------------------------
   画像
   ------------------------------------------------------------ */

img {
  height: auto;
  vertical-align: middle;
}


/* ------------------------------------------------------------
   共通コンテナ
   ------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--content-padding-pc);
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--content-padding-sp);
  }
}


/* ------------------------------------------------------------
   共通セクション余白
   ------------------------------------------------------------ */

.section {
  padding-block: var(--section-space-pc);
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--section-space-sp);
  }
}


/* ------------------------------------------------------------
   ボタン
   ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.875em 1.75em;
  border-radius: 4px;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  transition: opacity 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* メインCTAボタン（黄） */
.btn-cta {
  background-color: var(--color-yellow);
  color: var(--color-black);
}


/* ------------------------------------------------------------
   LP共通CTAボタン（黄色ベタ・横長・矢印付き）
   セクション固有のmargin・widthは呼び出し側で上書きする
   ------------------------------------------------------------ */

.lp-cta {
  display: grid;
  grid-template-columns: 1fr 20px;
  align-items: center;
  gap: 16px;
  width: min(100%, 780px);
  min-height: 82px;
  margin-inline: auto;
  padding: 20px 36px;
  background-color: var(--color-yellow);
  color: var(--color-black);
  text-decoration: none;
  border-radius: 4px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lp-cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.lp-cta__label {
  text-align: center;
}

.lp-cta__arrow {
  width: 14px;
  height: 14px;
  border-top: 3px solid currentColor;
  border-right: 3px solid currentColor;
  transform: rotate(45deg);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .lp-cta {
    width: 100%;
    min-height: 64px;
    padding: 16px 20px;
    font-size: 18px;
  }
}


/* ------------------------------------------------------------
   ヘッダー
   ------------------------------------------------------------ */

.site-header {
  position: relative;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: #0F0F0E;
  height: var(--header-height-pc);
  transition: box-shadow 0.3s ease;
}

/* スクロール後にスティッキー固定＋影を付与 */
.site-header.is-sticky {
  position: fixed;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

/* スティッキー固定後のページ内スペース確保用（JS側で付与） */
body.header-is-sticky {
  padding-top: var(--header-height-pc);
}

@media (max-width: 768px) {
  body.header-is-sticky {
    padding-top: var(--header-height-sp);
  }
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--content-padding-pc);
}

@media (max-width: 768px) {
  .site-header {
    height: var(--header-height-sp);
  }

  .site-header__inner {
    padding-inline: var(--content-padding-sp);
  }
}

/* ロゴ */
.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo img {
  height: 56px;
  width: auto;
}

@media (max-width: 768px) {
  .site-header__logo img {
    height: 44px;
  }
}

/* ヘッダー内CTA */
.site-header__cta {
  flex-shrink: 0;
  font-size: 0.875rem;
  padding: 0.625em 1.25em;
}

@media (max-width: 768px) {
  .site-header__cta {
    font-size: 0.75rem;
    padding: 0.5em 0.875em;
  }
}


.site-header__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-header__tagline {
  margin: 0;
  padding-left: 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .site-header__tagline {
    display: none;
  }
}

/* ------------------------------------------------------------
   フッター（基礎のみ）
   ------------------------------------------------------------ */

.site-footer {
  background-color: var(--color-black);
  color: var(--color-ivory);
  padding-block: 40px;
  font-size: 0.875rem;
  text-align: center;
}


/* ------------------------------------------------------------
   FAQは各LP側で静的表示（全項目常時表示）として実装するため、
   共通のアコーディオン用スタイルは持たない。
   ------------------------------------------------------------ */


/* ------------------------------------------------------------
   フォーム（基礎）
   ------------------------------------------------------------ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375em;
}

.form-label {
  font-weight: 700;
  font-size: 0.9375rem;
}

.form-label .required {
  display: inline-block;
  margin-left: 0.375em;
  padding: 0.1em 0.5em;
  background-color: var(--color-yellow);
  color: var(--color-black);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 2px;
  vertical-align: middle;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75em 1em;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-white);
  transition: border-color 0.2s ease;
  appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-yellow);
}

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


/* ------------------------------------------------------------
   アクセシビリティ
   ------------------------------------------------------------ */

/* フォーカスリング：キーボード操作時のみ表示 */
:focus-visible {
  outline: 3px solid var(--color-yellow);
  outline-offset: 2px;
}

/* スクリーンリーダー専用テキスト */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* モーション軽減設定への対応 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------------------------------------
   共通装飾パーツ：区切りライン（菱形付き）
   全LP共通。色は固定値で統一（gold-border:#D6BE8A / gold-dark:#B88A2A）
   ------------------------------------------------------------ */

.deco-divider {
  position: relative;
  width: min(calc(100% - 40px), 760px);
  height: 1px;
  margin: clamp(60px, 5vw, 80px) auto 0;
  background: #D6BE8A;
}

.deco-divider::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 12px;
  background: #B88A2A;
  transform: translate(-50%, -50%) rotate(45deg);
}

/* ------------------------------------------------------------
   共通ユーティリティ：PC/SP表示切り替え
   <br>タグや特定要素をPCまたはSPだけで表示したいときに使う
   全LP共通
   ------------------------------------------------------------ */

.pc-only {
  display: inline;
}

.sp-only {
  display: none;
}

@media (max-width: 768px) {
  .pc-only {
    display: none;
  }

  .sp-only {
    display: inline;
  }
}

/* ============================================================
   LP02〜LP04 横展開用の追加定義
   LP01への影響を避けるため、既存定義は変更しない
   ============================================================ */


/* ------------------------------------------------------------
   追加カスタムプロパティ
   ------------------------------------------------------------ */

:root {
  --color-black-deep: #111111;
  --color-gold-dark: #B88A2A;
  --color-gold-border: #D6BE8A;
  --color-gold-light: #C9A14A;

  --font-serif: "Noto Serif JP", "Yu Mincho", "YuMincho", serif;
  --font-sans: "Noto Sans JP", sans-serif;
}


/* ------------------------------------------------------------
   LP02〜04共通：ゴールド文字
   ------------------------------------------------------------ */

.lp-02 .text-gold,
.lp-03 .text-gold,
.lp-04 .text-gold {
  color: var(--color-gold-dark);
}


/* ------------------------------------------------------------
   LP02〜04共通：セクション縦余白
   ------------------------------------------------------------ */

.lp-02 .section-py,
.lp-03 .section-py,
.lp-04 .section-py {
  padding: clamp(56px, 6vw, 88px) 0;
}


/* ------------------------------------------------------------
   LP02〜04共通：カードベース
   ------------------------------------------------------------ */

.lp-02 .card,
.lp-03 .card,
.lp-04 .card {
  background: var(--color-white);
  border: 1px solid var(--color-gold-border);
  border-radius: 12px;
}


/* ------------------------------------------------------------
   LP02〜04共通：幅別コンテナ
   ------------------------------------------------------------ */

.lp-02 .container-sm,
.lp-03 .container-sm,
.lp-04 .container-sm {
  width: min(100% - 80px, 900px);
  margin-inline: auto;
}

.lp-02 .container-md,
.lp-03 .container-md,
.lp-04 .container-md {
  width: min(100% - 80px, 1080px);
  margin-inline: auto;
}

.lp-02 .container-lg,
.lp-03 .container-lg,
.lp-04 .container-lg {
  width: min(100% - 80px, 1200px);
  margin-inline: auto;
}

.lp-02 .container-xl,
.lp-03 .container-xl,
.lp-04 .container-xl {
  width: min(100% - 80px, 1280px);
  margin-inline: auto;
}

@media (max-width: 768px) {
  .lp-02 .container-sm,
  .lp-02 .container-md,
  .lp-02 .container-lg,
  .lp-02 .container-xl,
  .lp-03 .container-sm,
  .lp-03 .container-md,
  .lp-03 .container-lg,
  .lp-03 .container-xl,
  .lp-04 .container-sm,
  .lp-04 .container-md,
  .lp-04 .container-lg,
  .lp-04 .container-xl {
    width: min(100% - 40px, 100%);
  }
}


/* ------------------------------------------------------------
   LP02〜04共通：セクションラベル
   ------------------------------------------------------------ */

.lp-02 .section-label,
.lp-03 .section-label,
.lp-04 .section-label {
  --section-label-color: #B88A2A;
  --section-label-line-color: #D6BE8A;
  --section-label-line-width: 48px;
  --section-label-gap: 20px;

  display: inline-flex;
  align-items: center;
  gap: var(--section-label-gap);
  color: var(--section-label-color);
  font-size: clamp(13px, 1.4vw, 16px);
  font-weight: 600;
  letter-spacing: 0.3em;
  line-height: 1.4;
  margin-bottom: 24px;
}

.lp-02 .section-label::before,
.lp-02 .section-label::after,
.lp-03 .section-label::before,
.lp-03 .section-label::after,
.lp-04 .section-label::before,
.lp-04 .section-label::after {
  content: "";
  width: var(--section-label-line-width);
  height: 1px;
  background: var(--section-label-line-color);
}


/* ------------------------------------------------------------
   LP02〜04共通：見出し基礎
   ------------------------------------------------------------ */

.lp-02 .section-heading,
.lp-03 .section-heading,
.lp-04 .section-heading {
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.06em;
}

@media (max-width: 768px) {
  .lp-02 .section-heading,
  .lp-02 .section-heading *,
  .lp-03 .section-heading,
  .lp-03 .section-heading *,
  .lp-04 .section-heading,
  .lp-04 .section-heading * {
    text-align: center;
  }
}