/* ===== Global Layout ===== */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 40%);
  color: #111827;
  line-height: 1.7;
  margin: 0;
  padding: 40px 16px 60px;
}

.page-shell {
  max-width: 880px;
  margin: 0 auto;
}

/* Main container card */
.case-card {
  position: relative;
  background: #ffffff;
  border-radius: 18px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
  padding: 32px 24px 40px;
}

@media (min-width: 768px) {
  .case-card {
    padding: 40px 40px 46px;
  }
}

/* Accent bar on top */
.case-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-radius: 18px 18px 0 0;
  background: linear-gradient(90deg, #2563eb, #38bdf8);
}

/* ===== Typography ===== */
h1 {
  font-size: clamp(26px, 3vw, 30px);
  margin: 10px 0 6px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.subtitle {
  color: #6b7280;
  font-size: 14px;
  font-style: italic;
  margin-bottom: 22px;
}

hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 26px 0;
}

.section {
  margin: 30px 0;
}

.section-heading {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-heading::before {
  content: "";
  width: 20px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #38bdf8);
}

h3 {
  margin: 18px 0 10px;
  font-size: 17px;
  font-weight: 600;
}

p {
  margin: 0 0 14px;
  font-size: 15.5px;
  color: #111827;
}

ul {
  padding-left: 1.1rem;
  margin: 6px 0 18px;
}

li {
  margin-bottom: 6px;
  font-size: 15.5px;
}

strong {
  font-weight: 600;
}

/* ===== Flourish / Image blocks ===== */
.flourish-block {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-left: 4px solid #2563eb;
  border-radius: 10px;
  padding: 14px 16px 18px;
  margin: 18px 0;
}

.flourish-note {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 6px;
}

/* 中身をカード幅いっぱいにする */
.flourish-container {
  width: 100%;
  max-width: 100%;
  margin: 0;
}

/* 画像を入れる場合 */
.flourish-container img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

/* ---- Image size control ---- */
.case-card img {
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
  margin: 16px auto;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

/* ---- Table styling (grid layout) ---- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 15px;
}

table th,
table td {
  border: 1px solid #d1d5db;   /* ← 格子の色 */
  padding: 8px 10px;
  text-align: left;
}

table th {
  background: #f3f4f6;          /* ヘッダーを薄グレーで強調 */
  font-weight: 600;
}

/* ============================
   Responsive Flourish Embeds
   ============================ */
.flourish-container,
.flourish-embed {
  width: 100% !important;
  max-width: 100% !important;
}

/* Flourish埋め込み専用。ほかのiframeには影響させない */
.flourish-embed iframe,
.flourish-embed object {
  width: 100% !important;
  max-width: 100%;
  aspect-ratio: 16 / 9;   /* 画面比率を維持しつつ縮む */
  height: auto;
  border: none;
}

/* スマホではグラフを「ほぼ全幅」に広げる */
@media (max-width: 600px) {
  /* 必要ならカードの左右パディングをそのままに */
  .case-card {
    padding-left: 24px;
    padding-right: 24px;
  }

  /* Flourishブロックだけパディングを食い破ってフルブリード風に */
  .case-card .flourish-block {
    margin-left: -24px;
    margin-right: -24px;
    border-radius: 0;
    border-left-width: 0;   /* 左の青いバーを消したい場合 */
    border-right-width: 0;
  }

  .case-card .flourish-block .flourish-container {
    padding-left: 0;
    padding-right: 0;
  }
}

.role-note {
  margin-top: 0.5rem;
  font-size: 0.9em;
  color: #6b7280;
}

/* ===== Links ===== */
a {
  color: #2563eb;
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 99, 235, 0.35);
  padding-bottom: 1px;
}

a:hover {
  border-bottom-color: rgba(37, 99, 235, 0.8);
}

.back-home {
  display: inline-block;
  margin: 16px 0 24px;
  padding: 8px 14px;
  background: #2563eb;
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.95rem;
  transition: 0.2s;
}

.back-home:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
}

/* ===== Homeボタン（アイコン付き・左上固定） ===== */
.back-home {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #e5e7eb;
  text-decoration: none;
  font-size: 0.9rem;
  color: #111827;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(8px);
}

.back-home__icon {
  font-size: 1.1rem;
}

.back-home__label {
  font-weight: 500;
}

/* モバイルでは少し小さく＆内側に */
@media (max-width: 640px) {
  .back-home {
    top: 10px;
    left: 10px;
    padding: 6px 10px;
    font-size: 0.85rem;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
  }
}

/* ===== スクロール時のフェードイン ===== */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== More projects グリッド ===== */
.more-projects {
  margin-top: 40px;
}

.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.project-card {
  display: block;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.project-card-title {
  font-weight: 600;
  font-size: 0.98rem;
  margin-bottom: 4px;
}

.project-card-tagline {
  font-size: 0.85rem;
  color: #4b5563;
}

/* ホバー時のカード効果（PC） */
@media (hover: hover) and (pointer: fine) {
  .project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.12);
    border-color: #d1d5db;
  }
}

/* 幅が広いときは2〜3列表示 */
@media (min-width: 720px) {
  .project-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Visual Highlight map: fill the white card on mobile (no overflow) */
@media (max-width: 600px) {
  /* カードの内側padding(24px)だけ打ち消して、白い領域の中に収める */
  .case-card figure.full-bleed {
    margin-left: -24px;
    margin-right: -24px;
  }

  /* 既存の .case-card img { margin:16px auto; } を上書き */
  .case-card figure.full-bleed img {
    width: 100%;
    max-width: 100%;
    margin: 16px 0;     /* 左右autoを消す */
    border-radius: 0;  /* 端まで行くなら角丸なしが自然（好みで） */
  }

  /* キャプションはカード内側の余白に戻す（任意） */
  .case-card figure.full-bleed figcaption {
    margin-left: 24px;
    margin-right: 24px;
  }
}