/* =========================================================
   Manga Creative Studio — スタイル
   1. デザインの土台（色・文字・余白・角丸・影）
   2. 基本
   3. ヘッダー・タブ
   4. パネル（各タブの外枠）
   5. フォーム部品
   6. ボタン・切り替えスイッチ
   7. お知らせ・エラー
   8. 作品データ
   9. 企画アシスタント
   10. 漫画生成
   11. レスポンシブ（PC 2カラム / タブレット / スマホ）
   ========================================================= */

/* ---------- 1. デザインの土台 ---------- */
:root {
  /* ベース */
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f9fafc;       /* 入力欄・内側のカード */
  --text: #1c2130;
  --text-2: #4b5263;          /* 説明文 */
  --muted: #6b7280;           /* 補足 */
  --border: #e4e7ef;
  --border-strong: #cfd4df;

  /* メイン（ボタン・スイッチ・リンク・フォーカスなど、全タブ共通） */
  --primary: #5046e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef0ff;
  --primary-text: #3730a3;

  /* 機能ごとの目印（タブとバッジだけに使う） */
  --c-works: #5046e5;
  --c-works-soft: #eef0ff;
  --c-assist: #0e8a7c;
  --c-assist-soft: #e3f5f2;
  --c-gen: #d9560b;
  --c-gen-soft: #fff1e7;

  /* 状態 */
  --danger: #c0362c;
  --danger-soft: #fff2f1;
  --danger-border: #f5c9c4;
  --success: #0f7a6b;
  --info: #1d5fbf;

  /* 形 */
  --r-lg: 20px;
  --r-md: 12px;
  --r-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow-md: 0 1px 3px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);
  --focus-ring: 0 0 0 4px var(--primary-soft);

  --font: "Inter", "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
}

/* ---------- 2. 基本 ---------- */
* { box-sizing: border-box; }

/* display を指定した要素でも、hidden 属性（タブ切り替えなど）を必ず優先する */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background:
    radial-gradient(1200px 400px at 50% -200px, #e9ebff 0%, transparent 70%),
    var(--bg);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

.main {
  padding-top: 32px;
  padding-bottom: 56px;
}

.hint {
  color: var(--muted);
  font-size: .8125rem;
  line-height: 1.6;
}

.app-footer {
  text-align: center;
  color: var(--muted);
  font-size: .8125rem;
  padding: 0 24px 40px;
}

/* ---------- 3. ヘッダー・タブ ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.01em;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, #6d63ff, var(--primary));
  box-shadow: 0 4px 12px rgba(80, 70, 229, .3);
}
.badge-mock {
  font-size: .75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
}

.tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab {
  flex: 0 0 auto;
  font: inherit;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 10px 16px 12px;
  min-height: 48px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.tab:hover { color: var(--text); }
.tab:focus-visible { outline: none; box-shadow: inset var(--focus-ring); border-radius: var(--r-sm) var(--r-sm) 0 0; }
.tab[aria-selected="true"] { font-weight: 700; }
.tab-works[aria-selected="true"]     { color: var(--c-works);  border-bottom-color: var(--c-works); }
.tab-assistant[aria-selected="true"] { color: var(--c-assist); border-bottom-color: var(--c-assist); }
.tab-generate[aria-selected="true"]  { color: var(--c-gen);    border-bottom-color: var(--c-gen); }

/* ---------- 4. パネル ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.panel-head { margin-bottom: 28px; }
.step {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 4px 12px;
  border-radius: 999px;
}
.panel-works .step     { background: var(--c-works-soft);  color: var(--c-works); }
.panel-assistant .step { background: var(--c-assist-soft); color: var(--c-assist); }
.panel-generate .step  { background: var(--c-gen-soft);    color: var(--c-gen); }
.panel-head h2 {
  margin: 12px 0 6px;
  font-size: 1.5rem;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.desc {
  margin: 0;
  max-width: 44em;
  color: var(--text-2);
  font-size: .9375rem;
}

/* ---------- 5. フォーム部品 ---------- */
.form { display: flex; flex-direction: column; gap: 24px; }
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field > label,
.field-head label {
  font-weight: 700;
  font-size: .875rem;
  color: var(--text);
}
.field-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.field-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.field-row-2 { grid-template-columns: 2fr 1fr; }

input[type="text"],
select,
textarea {
  width: 100%;
  font: inherit;
  font-size: 16px; /* iOS のズーム防止 */
  line-height: 1.6;
  padding: 12px 14px;
  min-height: 48px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder,
textarea::placeholder { color: #9aa1af; }
input[type="text"]:hover,
select:hover,
textarea:hover { border-color: #b8bfcd; }
input[type="text"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--focus-ring);
}
select:disabled { background: var(--surface-2); color: var(--muted); cursor: not-allowed; }
textarea { resize: vertical; }
#story { min-height: 140px; }

.upload {
  display: grid;
  place-items: center;
  min-height: 160px;
  padding: 16px;
  border: 2px dashed var(--border-strong);
  border-radius: var(--r-md);
  background: var(--surface-2);
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition: border-color .15s, background .15s;
}
.upload:hover { border-color: var(--primary); background: var(--primary-soft); }
.upload p { margin: 0; }
.upload-icon { font-size: 2rem; line-height: 1.2; margin-bottom: 4px; }
.upload img { max-width: 100%; max-height: 240px; display: block; border-radius: var(--r-sm); }

/* ---------- 6. ボタン・切り替えスイッチ ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: var(--r-md);
  padding: 14px 24px;
  min-height: 52px;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(16, 24, 40, .08), 0 4px 12px rgba(80, 70, 229, .22);
  transition: background .15s, transform .1s, box-shadow .15s;
}
.btn:hover { background: var(--primary-hover); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn:disabled { opacity: .6; cursor: wait; transform: none; }
/* 機能別のボタンも、見た目は共通のメインカラーにそろえる */
.btn-works, .btn-assistant, .btn-generate { background: var(--primary); }
.btn-small { min-height: 44px; padding: 10px 18px; font-size: .9375rem; }

.btn-link {
  font: inherit;
  font-size: .875rem;
  font-weight: 700;
  color: var(--primary);
  background: none;
  border: none;
  border-radius: var(--r-sm);
  padding: 8px 10px;
  min-height: 40px;
  cursor: pointer;
}
.btn-link:hover { background: var(--primary-soft); }
.btn-link.danger { color: var(--danger); }
.btn-link.danger:hover { background: var(--danger-soft); }

.btn-danger {
  font: inherit;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--danger);
  background: var(--surface);
  border: 1px solid var(--danger-border);
  border-radius: var(--r-md);
  padding: 12px 18px;
  min-height: 48px;
  cursor: pointer;
}
.btn-danger:hover { background: var(--danger-soft); }

/* ON / OFF スイッチ（文字は JS が "ON" / "OFF" に切り替える） */
.toggles { display: flex; flex-direction: column; gap: 12px; }
.toggle-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface-2);
}
.toggle-title { font-weight: 700; font-size: .9375rem; }
.toggle-desc { margin: 4px 0 0; font-size: .8125rem; color: var(--text-2); line-height: 1.6; }
.toggle {
  position: relative;
  flex-shrink: 0;
  width: 76px;
  height: 40px;
  padding: 0 12px;
  border: none;
  border-radius: 999px;
  background: #dfe3ea;
  color: var(--text-2);
  font: inherit;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-align: right;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(16, 24, 40, .2);
  transition: transform .2s;
}
.toggle[aria-checked="true"] { background: var(--primary); color: #fff; text-align: left; }
.toggle[aria-checked="true"]::after { transform: translateX(36px); }
.toggle:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ---------- 7. お知らせ・エラー ---------- */
.error,
.notice {
  margin: 0;
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: .9375rem;
  line-height: 1.6;
}
.error {
  background: var(--danger-soft);
  border: 1px solid var(--danger-border);
  color: var(--danger);
}
.error::before { content: "⚠️ "; }
.notice {
  background: var(--primary-soft);
  color: var(--primary-text);
}

.is-loading { color: var(--muted); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .45; } }

/* ---------- 8. 作品データ ---------- */
.works-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  align-items: start;
}
.works-list {
  position: sticky;
  top: 136px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.works-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.works-empty { color: var(--muted); font-size: .875rem; padding: 8px 4px; }
.work-item {
  width: 100%;
  text-align: left;
  font: inherit;
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color .15s, background .15s;
}
.work-item strong { font-size: .9375rem; }
.work-item span { font-size: .75rem; color: var(--muted); }
.work-item:hover { border-color: var(--primary); }
.work-item.active { border-color: var(--primary); background: var(--primary-soft); }
.work-item:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.import-box {
  border: 1px dashed #b9b4f7;
  border-radius: var(--r-md);
  padding: 14px 18px;
  background: #fafaff;
}
.import-box summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--primary-text);
}
.import-box[open] { display: flex; flex-direction: column; gap: 12px; }
.import-box .hint { margin: 0; }
.import-box .btn { align-self: flex-start; }

#characters { display: flex; flex-direction: column; gap: 16px; }
.character-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.character-head { display: flex; gap: 8px; align-items: center; }
.character-head .char-name { flex: 1; min-width: 0; font-weight: 700; }
.character-head .char-remove { flex-shrink: 0; white-space: nowrap; }
.char-images { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.char-thumbs { display: contents; }
.thumb { position: relative; width: 88px; height: 88px; }
.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: #fff;
}
.thumb button {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: #2b2f3a;
  color: #fff;
  cursor: pointer;
  font-size: .875rem;
  line-height: 1;
}
.char-upload {
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  border: 2px dashed var(--border-strong);
  border-radius: var(--r-sm);
  font-size: .75rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  cursor: pointer;
  background: #fff;
  transition: border-color .15s, background .15s;
}
.char-upload:hover { border-color: var(--primary); background: var(--primary-soft); }
.character-card .hint { margin: 0; }

.work-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* ---------- 9. 企画アシスタント ---------- */
.result {
  margin-top: 32px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.result-head {
  padding: 12px 18px;
  font-weight: 700;
  font-size: .875rem;
  color: var(--c-assist);
  background: var(--c-assist-soft);
}
.result-body {
  padding: 20px;
  white-space: pre-wrap;
  font-size: .9375rem;
  line-height: 1.85;
}

/* ---------- 10. 漫画生成 ---------- */
.work-summary {
  margin: -8px 0 0;
  padding: 12px 16px;
  border-radius: var(--r-md);
  background: var(--primary-soft);
  color: var(--primary-text);
  font-size: .875rem;
  line-height: 1.6;
}

.preview { margin-top: 36px; }
.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  font-weight: 700;
  font-size: 1.0625rem;
  margin-bottom: 16px;
}
.preview-meta { font-size: .8125rem; color: var(--muted); font-weight: 400; }
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.page-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.page-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
}
.page-card-head strong { font-size: .9375rem; font-weight: 700; }
.tag {
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.page-canvas {
  aspect-ratio: 2 / 3;
  margin: 0 14px;
  padding: 8px;
  background: #f3f4f8;
  border: 2px solid #2b2f3a;
  border-radius: 2px;
  display: grid;
  gap: 6px;
}
.page-canvas .koma {
  background: repeating-linear-gradient(45deg, #fff, #fff 6px, #f3f4f8 6px, #f3f4f8 12px);
  border: 2px solid #2b2f3a;
}
.page-card.is-generating .page-canvas { animation: pulse 1.4s ease-in-out infinite; }
.page-image {
  display: block;
  width: calc(100% - 28px);
  margin: 0 14px;
  border: 1px solid var(--border);
  border-radius: 2px;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}
.page-card-foot { padding: 12px 14px 16px; }
.page-card-foot .label { font-size: .75rem; font-weight: 700; color: var(--c-gen); }
.page-card-foot p { margin: 4px 0 0; font-size: .8125rem; color: var(--text-2); line-height: 1.6; }

/* セリフチェックの結果 */
.status.check-ok    { color: var(--success); font-weight: 700; }
.status.check-fixed { color: var(--info); font-weight: 700; }
.status.check-warn  { color: var(--danger); font-weight: 700; }
.ref-note { font-size: .75rem !important; color: var(--primary-text) !important; }
.script { margin-top: 8px; font-size: .8125rem; }
.script summary { cursor: pointer; color: var(--text-2); }
.script ol { margin: 6px 0 0; padding: 0; list-style: none; }
.script li + li { margin-top: 2px; }
.save-link {
  display: inline-block;
  margin-top: 10px;
  font-size: .8125rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}
.save-link:hover { text-decoration: underline; }

/* ---------- 11. レスポンシブ ---------- */

/* PC（1100px 以上）：企画アシスタントと漫画生成は「左：入力 / 右：結果」の2カラム */
@media (min-width: 1100px) {
  .panel-assistant,
  .panel-generate {
    display: grid;
    grid-template-columns: 440px 1fr;
    column-gap: 48px;
    align-items: start;
  }
  .panel-assistant .panel-head,
  .panel-generate .panel-head { grid-column: 1 / -1; }
  .panel-assistant .result,
  .panel-generate .preview {
    margin-top: 0;
    position: sticky;
    top: 136px;
  }
  /* 左カラムが狭くなるため、選択欄の並びを調整 */
  .panel-generate .field-row { grid-template-columns: 1fr 1fr; }
  .panel-generate .field-row > .field:nth-child(3) { grid-column: 1 / -1; }
  .panel-generate .field-row-2 { grid-template-columns: 1fr; }
  .panel-generate .preview-head { margin-top: 2px; }
  .panel-generate .preview-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 16px; }
}

/* タブレット（1024px 以下） */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .panel { padding: 28px; }
  .works-layout { grid-template-columns: 1fr; gap: 24px; }
  .works-list { position: static; }
  .works-list ul { flex-direction: row; overflow-x: auto; padding-bottom: 4px; }
  .works-list li { flex: 0 0 220px; }
  .preview-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

/* スマホ（640px 以下） */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .main { padding-top: 16px; padding-bottom: 40px; }
  .header-inner { height: 56px; }
  .logo h1 { font-size: 1.05rem; }
  .logo-mark { width: 32px; height: 32px; }
  .badge-mock { display: none; }
  .tabs { gap: 0; }
  .tab { flex: 1 0 auto; font-size: .8125rem; padding: 8px 10px 10px; }

  .panel { padding: 20px; border-radius: 16px; }
  .panel-head { margin-bottom: 20px; }
  .panel-head h2 { font-size: 1.3rem; }
  .form { gap: 20px; }
  .field-row,
  .field-row-2 { grid-template-columns: 1fr; }

  .btn { width: 100%; }
  .import-box .btn { align-self: stretch; }
  .work-actions { flex-direction: column; align-items: stretch; }
  .toggle-item { padding: 14px; }

  .preview-grid { grid-template-columns: 1fr; }
  .page-canvas,
  .page-image { width: calc(100% - 28px); max-width: 320px; margin: 0 auto; }
}