/* ============================================================
   GCCLabo 統合問い合わせフォーム スタイルシート
   PRJ-006 / PRJ-004 デザイン準拠
   ============================================================ */

/* -----------------------------------------------
   CSS カスタムプロパティ
   ----------------------------------------------- */
:root {
  --color-bg:        #f5f5f7;
  --color-surface:   #ffffff;
  --color-primary:   #0071e3;
  --color-primary-h: #0077ed;
  --color-text:      #1d1d1f;
  --color-sub:       #6e6e73;
  --color-border:    #d2d2d7;
  --color-error:     #d70015;
  --color-success:   #34c759;
  --color-step-done: #34c759;
  --color-step-active:#0071e3;
  --color-step-idle: #d2d2d7;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --shadow-card: 0 2px 12px rgba(0,0,0,.08);
  --shadow-btn:  0 1px 4px rgba(0,113,227,.25);

  --max-w: 720px;
  --transition: .2s ease;

  /* PRJ-004（入稿フォーム）準拠トークン */
  --grad-blue: linear-gradient(180deg,#1f86ea 0%,#0071e3 100%);
  --grad-blue-hover: linear-gradient(180deg,#2a8ff0 0%,#0077ed 100%);
  --sh-btn-blue: 0 2px 4px rgba(0,113,227,.20), 6px 8px 18px rgba(0,113,227,.28), -3px -4px 10px rgba(255,255,255,.55);
  --c-req: #bf4800;
}

/* -----------------------------------------------
   リセット・ベース
   ----------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

/* PCのみ改行（SPは自然折返し） */
@media (max-width: 600px) { .br-pc { display: none; } }

/* -----------------------------------------------
   レイアウト
   ----------------------------------------------- */
.page-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-header__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.02em;
}
.page-header__brand { display: flex; align-items: center; }
.page-header__logo-img { height: 45px; width: auto; display: block; }
.page-header__logo-img--gc { height: 30px; }
.page-header__divider {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  margin: 0 4px;
}
.page-header__sub {
  font-size: .85rem;
  color: var(--color-sub);
  margin-left: auto;
}
.page-header__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: .02em;
  line-height: 1.3;
}
.page-header__faq {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  white-space: nowrap;
  transition: border-color var(--transition), color var(--transition);
}
.page-header__faq:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }

/* -----------------------------------------------
   フッター・関連サイトリンク
   ----------------------------------------------- */
.page-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 16px 40px;
  background: var(--color-surface);
}
.site-links {
  max-width: 900px;
  margin: 0 auto 24px;
  text-align: center;
}
.site-links__title {
  font-size: .85rem;
  font-weight: 700;
  color: var(--color-sub);
  margin-bottom: 14px;
  letter-spacing: .05em;
}
.site-links__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.site-link-btn {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 64px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 8px 20px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-link-btn__logo { height: 44px; width: auto; display: block; }
.site-link-btn__logo--gc { height: 30px; }
.site-link-btn__icon { height: 32px; width: 32px; }
.site-link-btn span { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }

/* 上段（GCCLabo・グラフィッククリエーション＝同列・大） */
.site-links__row--primary { margin-bottom: 14px; }
.site-link-btn--primary { min-height: 84px; padding: 12px 32px; }
/* 上段は2ロゴとも同じ縦幅に統一（比率は維持・width auto） */
.site-link-btn--primary .site-link-btn__logo { height: 52px; }

/* 下段（その他＝小さめ） */
/* ロゴ上・説明文下の縦組み（下段3サイト） */
.site-link-btn:hover {
  text-decoration: none;
  border-color: var(--color-primary);
  box-shadow: 0 2px 10px rgba(0,113,227,.12);
  color: var(--color-primary);
}
.site-link-btn__note {
  font-size: .7rem;
  font-weight: 400;
  color: var(--color-sub);
}
.page-footer__copy {
  text-align: center;
  font-size: .78rem;
  color: var(--color-sub);
}
@media (max-width: 600px) {
  .page-header { flex-wrap: wrap; gap: 8px; position: relative; }
  .page-header__sub { width: 100%; margin-left: 0; }
  .page-header__title { width: 100%; font-size: 1rem; }
  .page-header__divider:last-of-type { display: none; }
  .page-header__faq { position: absolute; top: 12px; right: 16px; padding: 5px 12px; font-size: .75rem; }
  .site-link-btn { width: 100%; }

  /* SP: 入口ボタンはアイコン上・文章下の1カラム */
  .route-btn {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 20px 16px;
  }
  .route-btn::after { display: none; }
  .route-btn__icon--cluster img { width: 140px; height: 140px; }
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 20px 80px;
}

/* -----------------------------------------------
   STEPインジケーター
   ----------------------------------------------- */
.step-indicator {
  background: var(--color-surface);
  border: 1px solid #e8e8ed;
  border-radius: 18px;
  padding: 26px 30px 18px;
  margin-bottom: 22px;
  box-shadow: 0 2px 6px rgba(0,0,0,.04), 0 10px 30px rgba(0,0,0,.05);
}
.step-indicator:empty { display: none; }
.step-indicator__inner { position: relative; max-width: 640px; margin: 0 auto; }
.step-indicator__track {
  position: absolute; top: 15px; left: 34px; right: 34px; height: 6px;
  border-radius: 999px; background: var(--color-bg); overflow: hidden;
}
.step-indicator__track i {
  display: block; height: 100%; width: 0;
  background: var(--grad-blue); border-radius: 999px;
  transition: width .5s cubic-bezier(.4,0,.2,1);
}
.step-indicator__items { position: relative; display: flex; justify-content: space-between; margin: 0; padding: 0; }
.step-indicator__item { display: flex; flex-direction: column; align-items: center; gap: 7px; width: 68px; }
.step-indicator__circle {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-border);
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: var(--color-sub);
  transition: border-color .3s, background .3s, transform .3s, box-shadow .3s;
  position: relative; z-index: 1;
}
.step-indicator__circle svg { width: 15px; height: 15px; stroke: #fff; stroke-width: 3; fill: none; display: none; }
.step-indicator__item.is-active .step-indicator__circle {
  border-color: var(--color-primary); color: var(--color-primary);
  box-shadow: 0 0 0 5px rgba(0,113,227,.14); transform: scale(1.12);
}
.step-indicator__item.is-done .step-indicator__circle { background: var(--grad-blue); border-color: transparent; color: transparent; }
.step-indicator__item.is-done .step-indicator__circle svg { display: block; animation: pop .3s cubic-bezier(.2,1.3,.5,1); }
@keyframes pop { from { transform: scale(.4); } to { transform: scale(1); } }
.step-indicator__label { font-size: 11px; font-weight: 600; color: var(--color-sub); white-space: nowrap; transition: color .3s; text-align: center; }
.step-indicator__item.is-active .step-indicator__label { color: var(--color-primary); }
.step-indicator__item.is-done .step-indicator__label { color: var(--color-text); }

/* -----------------------------------------------
   カード
   ----------------------------------------------- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 32px 36px;
  margin-bottom: 24px;
}

/* STEP見出し（PRJ-004 sec-head準拠） */
.sec-head { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin: 0 0 18px; }
.sec-no {
  display: inline-flex; align-items: baseline; gap: 2px; padding: 6px 16px;
  background: var(--grad-blue); color: #fff;
  border-radius: 999px; font-size: 13.5px; font-weight: 700; letter-spacing: .04em;
  box-shadow: 0 2px 8px rgba(0,113,227,.28);
}
.sec-no .sec-total { font-size: 10.5px; font-weight: 600; opacity: .75; }
.sec-head h2 { font-size: 20px; font-weight: 700; margin: 0; letter-spacing: -.005em; }

.card__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

/* -----------------------------------------------
   入口セレクター（3ボタン）
   ----------------------------------------------- */
.route-selector {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.route-btn {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: left;
  width: 100%;
  font-family: inherit;
}
.route-btn { position: relative; padding-right: 56px; }
.route-btn::after {
  content: '\203A';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--color-border);
  transition: color .2s ease, transform .2s ease;
}
.route-btn:hover::after {
  color: var(--color-primary);
  transform: translateY(-50%) translateX(4px);
}
.route-btn:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,113,227,.15);
  transform: translateY(-2px);
}
.route-btn__icon {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--color-primary);
}
.route-btn__icon svg,
.route-btn__icon img { width: 40px; height: 40px; }
.route-btn__icon--cluster img { width: 116px; height: 116px; object-fit: contain; }
.route-btn:hover .route-btn__icon { color: var(--color-primary-h); }

/* 入口ページ: データ入稿フォームへの誘導 */
.entry-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 20px;
  padding: 16px 18px;
  background: #f0f7ff;
  border: 1px solid #cfe4fb;
  border-radius: var(--radius-md);
  font-size: .88rem;
  line-height: 1.7;
}
.entry-note__icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}
.entry-note__icon svg,
.entry-note__icon img { width: 30px; height: 30px; }
.route-btn__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.route-btn__desc {
  font-size: .85rem;
  color: var(--color-sub);
}
.route-btn__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}
.route-btn__meta-label {
  font-size: .78rem;
  color: var(--color-sub);
}
.route-btn__chip {
  display: inline-block;
  border: 1px solid #cfe4fb;
  background: #f0f7ff;
  color: var(--color-primary);
  border-radius: 999px;
  padding: 3px 12px;
  font-size: .75rem;
  font-weight: 600;
  line-height: 1.4;
}

/* -----------------------------------------------
   フォームフィールド
   ----------------------------------------------- */
.field {
  margin-bottom: 38px;
}
.field .field {           /* 入れ子フィールド（寸法グリッド等）は詰める */
  margin-bottom: 0;
}
.field:last-of-type {
  margin-bottom: 28px;
}

.field__label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: 6px;
}

.badge-required {
  display: inline-flex; align-items: center;
  border: 1.5px solid var(--c-req); color: var(--c-req); background: none;
  font-size: 11px; font-weight: 700; padding: 1px 9px; border-radius: 999px;
  letter-spacing: .03em; margin-left: 6px; vertical-align: middle; line-height: 1.6;
}
.badge-optional {
  display: inline-flex; align-items: center;
  background: var(--color-bg); color: var(--color-sub);
  font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  margin-left: 6px; vertical-align: middle; line-height: 1.4;
}

.field__hint {
  font-size: .78rem;
  color: var(--color-sub);
  margin-top: 4px;
  line-height: 1.4;
}

.field__error {
  font-size: .8rem;
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}
.field.has-error .field__error { display: block; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--color-error) !important;
}

/* テキスト入力共通 */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,113,227,.12);
}

/* 数値入力の増減ステッパー（−／＋・JSが input[type=number] を自動ラップ） */
.num-stepper {
  display: inline-flex;
  align-items: stretch;
  border: 1.5px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  background: #f5f5f7;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.num-stepper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,113,227,.12);
}
.num-stepper .form-input {
  width: 92px;
  border: none;
  border-radius: 0;
  text-align: center;
  background: var(--color-surface);
  padding: 10px 8px;
}
.num-stepper .form-input:focus { outline: none; box-shadow: none; }
.num-stepper__btn {
  width: 48px;
  border: none;
  background: #f5f5f7;
  font-size: 1.1rem;
  color: var(--color-text);
  cursor: pointer;
  line-height: 1;
  transition: background var(--transition);
}
.num-stepper__btn:hover { background: #ececef; }
.num-stepper__btn:active { background: #e2e2e6; }
/* ブラウザ標準のスピンボタンは非表示（ステッパーと重複するため） */
.num-stepper input::-webkit-outer-spin-button,
.num-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.num-stepper input[type="number"] { -moz-appearance: textfield; appearance: textfield; }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%236e6e73' d='M5 7l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px;
  padding-right: 38px;
}

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

.form-textarea--tall { min-height: 180px; }

/* 文字数カウンター */
.char-counter {
  text-align: right;
  font-size: .75rem;
  color: var(--color-sub);
  margin-top: 4px;
}
.char-counter.near-limit { color: #ff9500; }
.char-counter.over-limit  { color: var(--color-error); }

/* ラジオ・チェックボックス */
.radio-group,
.check-group {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-group--inline,
.check-group--inline {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 12px;
}

.form-radio,
.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: .9rem;
}

/* 選択肢のチップ化（内容幅・横並び・枠線なしの背景色塗り。テキスト入力欄と差別化） */
.radio-group > .form-radio,
.check-group > .form-check {
  width: auto;
  max-width: 100%;
  border: none;
  border-radius: 12px;
  padding: 10px 16px 10px 13px;
  background: var(--color-bg);
  transition: background .18s ease, box-shadow .18s ease, color .18s ease;
}
.radio-group > .form-radio:hover,
.check-group > .form-check:hover {
  background: #ececf0;
}
.radio-group > .form-radio:has(input:checked),
.check-group > .form-check:has(input:checked) {
  background: #dcecfd;
  color: var(--color-primary);
  font-weight: 600;
}
.radio-group > .form-radio:focus-within,
.check-group > .form-check:focus-within {
  box-shadow: 0 0 0 3px rgba(0,113,227,.25);
}
.form-radio input,
.form-check input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* -----------------------------------------------
   ファイルアップロードエリア
   ----------------------------------------------- */
.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  background: #fafafa;
  position: relative;
}
.upload-area:hover,
.upload-area.is-drag-over {
  border-color: var(--color-primary);
  background: rgba(0,113,227,.04);
}
.upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-area__icon { margin-bottom: 8px; color: var(--color-sub); }
.upload-area__icon svg,
.upload-area__icon img { width: 38px; height: 38px; }
.upload-area__text { font-size: .9rem; color: var(--color-sub); }
.upload-area__link { color: var(--color-primary); font-weight: 600; }

/* アップロードリスト */
.upload-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }

.upload-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f0f4ff;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: .85rem;
}
.upload-item__name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-item__size { color: var(--color-sub); flex-shrink: 0; }
.upload-item__remove {
  background: none;
  border: none;
  color: var(--color-error);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}
.upload-item__remove:hover { background: rgba(215,0,21,.1); }

/* プログレスバー */
.upload-progress {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  margin-top: 6px;
  overflow: hidden;
}
.upload-progress__bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width .2s;
  width: 0;
}
.upload-item.is-done .upload-progress__bar { background: var(--color-success); width: 100%; }
.upload-item.is-error .upload-progress__bar { background: var(--color-error); }
.upload-item__status { font-size: .75rem; color: var(--color-sub); }

/* -----------------------------------------------
   確認画面
   ----------------------------------------------- */
.confirm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.confirm-table th,
.confirm-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.confirm-table th {
  width: 35%;
  color: var(--color-sub);
  font-weight: 600;
}
.tbd-badge {
  display: inline-block;
  background: #ff9500;
  color: #fff;
  font-size: .7rem;
  border-radius: 3px;
  padding: 1px 6px;
  margin-left: 6px;
}

/* 同意チェック */
.agree-block {
  background: #f5f5f7;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 20px;
}
.agree-block__text {
  font-size: .85rem;
  color: var(--color-sub);
  margin-bottom: 12px;
  line-height: 1.7;
}

/* -----------------------------------------------
   完了画面
   ----------------------------------------------- */
.complete-card {
  text-align: center;
  padding: 48px 36px;
}
.complete-card__icon {
  margin-bottom: 16px;
  color: var(--color-success);
}
.complete-card__icon svg,
.complete-card__icon img { width: 64px; height: 64px; }
.complete-card__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.complete-card__ref {
  display: inline-block;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--color-primary);
  margin: 16px 0 24px;
}
.complete-card__note {
  font-size: .9rem;
  color: var(--color-sub);
  margin-bottom: 28px;
  line-height: 1.7;
}

/* -----------------------------------------------
   ボタン
   ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: var(--grad-blue);
  color: #fff;
  box-shadow: var(--sh-btn-blue);
}
.btn--primary:hover {
  background: var(--grad-blue-hover);
  box-shadow: 0 8px 20px rgba(0,113,227,.34);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--secondary:hover {
  background: rgba(0,113,227,.06);
}

.btn--ghost {
  background: #ececef;
  color: var(--color-text);
  border: none;
}
.btn--ghost:hover { background: #e3e3e8; }

.btn--lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn--full { width: 100%; }

.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}

/* ナビボタン行 */
.form-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 32px;
}
.form-nav .btn { flex: 1; }
.form-nav .btn--primary { flex: 2; }

/* -----------------------------------------------
   アラート・インフォ
   ----------------------------------------------- */
.alert {
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: .88rem;
  margin-bottom: 16px;
  line-height: 1.5;
}
.alert--info { background: #e8f0fe; color: #1a3d7a; border-left: 4px solid var(--color-primary); }
.alert--warn { background: #fff3cd; color: #856404; border-left: 4px solid #ff9500; }
.alert--error { background: #fff0f0; color: #900; border-left: 4px solid var(--color-error); }

/* -----------------------------------------------
   セクションタイトル
   ----------------------------------------------- */
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 28px 0 16px;
  padding-left: 10px;
  border-left: 4px solid var(--color-primary);
}

/* -----------------------------------------------
   未定項目バナー
   ----------------------------------------------- */
.tbd-notice {
  background: #fff8e6;
  border: 1px solid #ffd966;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: .85rem;
  margin-top: 12px;
}

/* -----------------------------------------------
   ローディングオーバーレイ
   ----------------------------------------------- */
.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.7);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}
.loading-overlay.is-active { display: flex; }
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -----------------------------------------------
   ユーティリティ
   ----------------------------------------------- */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-sub { color: var(--color-sub); font-size: .88rem; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }

/* 縦横寸法入力グリッド */
.size-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

/* -----------------------------------------------
   レスポンシブ
   ----------------------------------------------- */
@media (max-width: 600px) {
  .card { padding: 20px 16px; }
  .card__title { font-size: 1.1rem; }

  .step-indicator { padding: 20px 12px 14px; }
  .step-indicator__track { left: 26px; right: 26px; top: 13px; }
  .step-indicator__circle { width: 30px; height: 30px; font-size: 12px; }
  .step-indicator__item { width: 52px; }
  .step-indicator__label { font-size: 10px; }
  /* SPは現在ステップのみラベル表示（長いステップ名の重なり防止） */
  .step-indicator__item:not(.is-active) .step-indicator__label { visibility: hidden; }

  .form-nav { flex-direction: column-reverse; }
  .form-nav .btn,
  .form-nav .btn--primary { flex: unset; width: 100%; }

  .confirm-table th { width: 40%; }

  .size-grid { grid-template-columns: 1fr 1fr; }
}


/* -----------------------------------------------
   インタラクション（PRJ-004準拠のパネル遷移・出現アニメ）
   ----------------------------------------------- */
[data-panel].anim-fwd  { animation: stepInFwd .35s ease; }
[data-panel].anim-back { animation: stepInBack .35s ease; }
@keyframes stepInFwd  { from { opacity: 0; transform: translateX(28px); }  to { opacity: 1; transform: none; } }
@keyframes stepInBack { from { opacity: 0; transform: translateX(-28px); } to { opacity: 1; transform: none; } }

.is-appear { animation: fieldIn .3s ease; }
@keyframes fieldIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* キーボード操作時のフォーカスリング */
.btn:focus-visible,
.route-btn:focus-visible,
.site-link-btn:focus-visible,
.page-header__faq:focus-visible,
.page-header__brand:focus-visible {
  outline: 3px solid rgba(0,113,227,.45);
  outline-offset: 2px;
}