/* ============================================
   Synaptika - style.css
   Tailwindを廃止して直接CSSに変換したもの
   ============================================ */

/* --- カラー変数（サイト全体で使う色） --- */
:root {
  --color-primary: #7c3aed;      /* purple-600 */
  --color-primary-dark: #6d28d9; /* purple-700 */
  --color-accent: #8b5cf6;       /* purple-500 */
  --color-secondary: #7c3aed;    /* purple-600 */
  --color-light: #f9fafb;        /* gray-50 */
  --color-gray-100: #f3f4f6;
  --color-gray-300: #d1d5db;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
}

/* --- リセット・基本 --- */
*, *::before, *::after {
  box-sizing: border-box;
}

/* --- body --- */
body {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
  background-color: var(--color-light);
  padding-top: 4rem; /* pt-16 : ナビバーの高さ分 */
  margin: 0;
  color: #111827;
}

/* --- 共通コンテナ --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* ============================================
   ナビゲーション
   ============================================ */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: #ffffff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  z-index: 50;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* ロゴ */
.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* PCメニュー */
.nav-links {
  display: none; /* モバイルでは非表示 */
  gap: 2rem;
}

.nav-links a {
  color: var(--color-gray-700);
  text-decoration: none;
  transition: color 0.2s;
  outline: none; /* 青いフォーカスボーダーを消す */
}

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

.nav-links a:focus-visible {
  outline: 2px solid var(--color-primary); /* キーボード操作時だけ表示（アクセシビリティ維持） */
  border-radius: 2px;
}

/* ハンバーガーボタン（モバイル） */
.nav-hamburger {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-hamburger svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* PC幅で切り替え */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .nav-hamburger {
    display: none;
  }
}

/* ============================================
   ヒーローセクション
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  color: #ffffff;
  /* グラデーション＋背景画像を1つにまとめる */
  background:
    linear-gradient(to right, rgba(124,58,237,0.88), rgba(139,92,246,0.88)),
    url('https://synaptika.net/images/fond1.webp') center/cover no-repeat;
}

.hero-overlay-image,
.hero-overlay-gradient {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-left: 1rem;
  padding-right: 1rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.25rem;
  font-family: Georgia, serif;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.hero p {
  font-size: 1.25rem;
  max-width: 42rem;
  margin: 0 auto;
  color: #ffffff;
  opacity: 0.9;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .hero p {
    font-size: 1.5rem;
  }
}

/* ============================================
   メインオファーセクション
   ============================================ */
.section-offer {
  background-color: #ffffff;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.section-offer .container {
  text-align: center;
}

/* アイコン＋見出しの横並び */
.offer-heading {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 3rem;
}

.offer-heading svg,
.offer-heading i {
  width: 2.5rem;
  height: 2.5rem;
  margin-right: 0.75rem;
  color: var(--color-secondary);
}

.offer-heading h2 {
  font-size: 1.875rem;
  font-family: Georgia, serif;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}

.offer-subtitle {
  font-size: 1.25rem;
  color: var(--color-accent);
  margin-bottom: 4rem;
}

.offer-description {
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-gray-700);
}

/* 画像＋ボックスの横並びレイアウト */
.offer-layout {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
  justify-content: center;
  margin-bottom: 2.5rem;
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}

@media (min-width: 1024px) {
  .offer-layout {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .offer-image-wrap,
  .offer-box {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
  }

  .offer-box {
    align-self: center;
  }
}

.offer-image {
  width: 15rem;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  max-width: 100%;
}

.offer-image-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.offer-image-wrap img {
  width: 100%;
  max-width: 365px; /* 304px × 120% */
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  display: block;
  margin: 0 auto;
}

/* 特典ボックス */
.offer-box {
  background-color: var(--color-light);
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.08);
  width: 100%;
  text-align: left;
  align-self: center; /* vertical center vs image */
}

.offer-box h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  margin-top: 0;
}

/* 特典グリッド */
.offer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.offer-grid-item {
  display: flex;
  align-items: flex-start;
}

.offer-grid-item .icon {
  font-size: 1.5rem;
  margin-right: 0.75rem;
  color: var(--color-secondary);
  flex-shrink: 0;
}

.offer-grid-item h4 {
  font-weight: 700;
  margin: 0 0 0.25rem 0;
}

.offer-grid-item p {
  margin: 0;
  color: var(--color-gray-600);
  font-size: 0.95rem;
}

.offer-note {
  margin-bottom: 1.5rem;
  color: var(--color-gray-700);
}

.offer-privacy {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
}

.offer-privacy svg,
.offer-privacy i {
  width: 1rem;
  height: 1rem;
  margin-right: 0.25rem;
}

@media (min-width: 768px) {
  .offer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .offer-privacy {
    justify-content: flex-start;
  }
}



/* ============================================
   フォーム
   ============================================ */
.signup-form {
  max-width: 28rem;
  margin: 3rem auto 0;
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  display: block;
}

@media (min-width: 1024px) {
  .signup-form {
    /* Centre la form sur la ligne de séparation 50/50 :
       décalage = 50% de 1200px moins la moitié de la form */
    margin-left: calc(50% - 14rem);
    margin-right: auto;
  }
}

.signup-form .form-group {
  margin-bottom: 1rem;
}

.signup-form .form-group:last-of-type {
  margin-bottom: 1.5rem;
}

.signup-form input[type="text"],
.signup-form input[type="email"] {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-gray-300);
  font-size: 1rem;
  outline: none;
  transition: box-shadow 0.2s;
}

.signup-form input[type="text"]:focus,
.signup-form input[type="email"]:focus {
  box-shadow: 0 0 0 2px var(--color-secondary);
}

.signup-form .checkbox-label {
  display: flex;
  align-items: center;
}

.signup-form input[type="checkbox"] {
  margin-right: 0.5rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-primary);
}

.signup-form .checkbox-text {
  font-size: 0.875rem;
  color: var(--color-gray-700);
}

/* ============================================
   ボタン（共通）
   ============================================ */
.btn {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
}

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

.btn-rounded {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
}

.btn-rounded:hover {
  background-color: var(--color-primary-dark);
}

/* ============================================
   無料リソースセクション
   ============================================ */
.section-resources {
  padding: 4rem 1rem;
  background-color: var(--color-gray-100);
  text-align: center;
}

.section-resources h2 {
  font-size: 1.875rem;
  font-family: Georgia, serif;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.section-resources p {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  margin-bottom: 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   ホリスティックメソッドセクション
   ============================================ */
.section-holistic {
  padding: 4rem 1rem;
  background-color: #ffffff;
  text-align: center;
}

.section-holistic h2 {
  font-size: 1.875rem;
  font-family: Georgia, serif;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.section-holistic p {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  margin-bottom: 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   ブログセクション
   ============================================ */
.section-blog {
  padding: 4rem 1rem;
  background-color: var(--color-gray-100);
}

.section-blog .blog-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-blog h2 {
  font-size: 1.875rem;
  font-family: Georgia, serif;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-blog p {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  margin-bottom: 1rem;
}

.section-blog .blog-sub {
  color: var(--color-gray-600);
}

/* ブログカードグリッド */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

/* ブログカード（JS動的生成分も含む） */
.blog-grid .bg-white {
  background-color: #ffffff;
}
.blog-grid .rounded-2xl {
  border-radius: 1rem;
}
.blog-grid .shadow-md {
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.blog-grid .overflow-hidden {
  overflow: hidden;
}
.blog-grid img {
  width: 100%;
  height: 12rem;
  object-fit: cover;
}
.blog-grid .p-6 {
  padding: 1.5rem;
}
.blog-grid h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-800);
  margin-bottom: 0.5rem;
  margin-top: 0;
}
.blog-grid p {
  color: var(--color-gray-600);
  margin-bottom: 1rem;
  font-size: 1rem;
}
.blog-grid a.text-purple-600 {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
}
.blog-grid a.text-purple-600:hover {
  color: var(--color-primary-dark);
}

.blog-footer {
  text-align: center;
  margin-top: 3rem;
}

/* ============================================
   フッター
   ============================================ */
footer {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  padding: 3rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--color-gray-300);
}

footer .container {
  text-align: center;
}

footer h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

/* SNSアイコン */
.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.social-links a {
  color: var(--color-gray-600);
  text-decoration: none;
  transition: color 0.2s;
}

.social-links a:hover.youtube { color: #dc2626; }
.social-links a:hover.pinterest { color: #b91c1c; }
.social-links a:hover.bluesky { color: #3b82f6; }

.social-links svg {
  width: 2rem;
  height: 2rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-300);
  padding-top: 1.5rem;
}

.footer-bottom p {
  color: var(--color-gray-500);
  margin: 0;
  font-size: 0.95rem;
}

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

/* ============================================
   フォーム追加スタイル（画像2のデザインに合わせた上書き）
   ============================================ */

/* SendFoxが挿入する<p>タグのマージンをリセット */
.signup-form p {
  margin: 0;
}

/* インプット欄 */
.signup-form input[type="text"],
.signup-form input[type="email"] {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-gray-300);
  font-size: 1rem;
  outline: none;
  transition: box-shadow 0.2s, border-color 0.2s;
  color: var(--color-gray-700);
  background-color: #fff;
  box-sizing: border-box;
}

.signup-form input[type="text"]::placeholder,
.signup-form input[type="email"]::placeholder {
  color: var(--color-gray-500);
}

.signup-form input[type="text"]:focus,
.signup-form input[type="email"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(124,58,237,0.15);
}

/* 送信ボタン */
.signup-form .btn-submit {
  display: block;
  width: 100%;
  padding: 0.9rem 1.5rem;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  margin-bottom: 1rem;
}

.signup-form .btn-submit:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* スパムなしメモ */
.signup-form .form-spam-note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-gray-700);
  margin: 0 !important;
}

/* チェックボックス */
.signup-form .checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.signup-form .checkbox-text {
  font-size: 0.9rem;
  color: var(--color-gray-700);
}

}

/* === FIX FINAL: Alignement des boutons Lire la suite (cible .post) === */
.post {
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
}
.post-footer {
  margin-top: auto !important;
}

/* === ALIGNEMENT BOUTONS LIRE LA SUITE (SOLUTION ULTIME) === */
/* Force la grille à étirer toutes les cartes à la même hauteur */
.blog-grid {
  display: grid !important;
  align-items: stretch !important;
}

/* Force chaque carte à prendre toute la hauteur et à être en flex column */
.post {
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
  flex: 1 1 auto !important;
}

/* Pousse le footer (et donc le bouton) tout en bas de la carte étirée */
.post-footer {
  margin-top: auto !important;
  padding-top: 1rem !important;
}

/* === ALIGNEMENT BOUTONS LIRE LA SUITE (SOLUTION ULTIME) === */
/* Force la grille à étirer toutes les cartes à la même hauteur */
.blog-grid {
  display: grid !important;
  align-items: stretch !important;
}

/* Force chaque carte à prendre toute la hauteur et à être en flex column */
.post {
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
  flex: 1 1 auto !important;
}

/* Pousse le footer (et donc le bouton) tout en bas de la carte étirée */
.post-footer {
  margin-top: auto !important;
  padding-top: 1rem !important;
}


/* Sécurité anti-débordement des contenus longs */
.offer-box,
.offer-grid-item,
.offer-grid-item > div {
  min-width: 0;
}

.offer-box .btn,
.offer-box .btn-rounded {
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  text-align: center;
}

/* Correctif définitif : alignement de l'offre NST et anti-débordement */
.offer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.offer-image-wrap,
.offer-box,
.offer-grid,
.offer-grid-item,
.offer-grid-item > div {
  min-width: 0;
  max-width: 100%;
}

.offer-box {
  width: 100%;
  overflow: hidden;
}

.offer-grid {
  grid-template-columns: minmax(0, 1fr);
}

.offer-box .btn,
.offer-box .btn-rounded {
  display: inline-block;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
  text-align: center;
}

@media (min-width: 768px) {
  .offer-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .offer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}