/* =========================================================
   FileType Sniffer 専用 style.css
   PCファースト（960px）＋スマホ480px変形対応
   NicheWorks 共通仕様 v2（2025-11）
========================================================= */

/* -----------------------------
   ベースレイアウト
----------------------------- */
body {
  margin: 0;
  padding: 0;
  background: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: #111827;
}

.nw-header {
  text-align: center;
  padding: 24px 12px 12px;
}
.nw-header h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 600;
  color: #111827;
}
.nw-sub {
  margin: 6px 0 4px;
  font-size: 13px;
  color: #6b7280;
}

/* 言語切替 */
.nw-lang-switch {
  margin-top: 6px;
  font-size: 11px;
  color: #6b7280;
}
.nw-lang-switch button {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0 4px;
  font-size: 11px;
  color: #4b5563;
}
.nw-lang-switch button.active {
  font-weight: 600;
  text-decoration: underline;
}

/* メイン領域（PC幅：960px） */
.nw-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 12px;
}

/* -----------------------------
   広告枠（共通仕様）
----------------------------- */
.ad-slot {
  margin: 12px 0 16px;
  padding: 10px;
  border: 1px dashed #d4d4d4;
  font-size: 11px;
  color: #9ca3af;
  text-align: center;
  min-height: 60px;
}

/* -----------------------------
   ツールUIブロック
----------------------------- */
.tool-container {
  background: #ffffff;
  padding: 16px;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
}

/* ドラッグ＆ドロップ領域 */
.drop-zone {
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  text-align: center;
  padding: 32px 12px;
  color: #6b7280;
  margin-bottom: 16px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.drop-zone.dragover {
  border-color: #111827;
  background: #f9fafb;
}
.drop-zone p {
  margin: 4px 0;
  font-size: 15px;
}

/* ファイル選択ボタン */
.file-input-area {
  text-align: center;
  margin: 12px 0 16px;
}
#fileInput {
  font-size: 14px;
  padding: 6px;
}

/* 注意書き */
.note {
  text-align: center;
  font-size: 12px;
  color: #6b7280;
  margin: 8px 0 14px;
}

/* 実行ボタン */
.primary-btn {
  display: block;
  width: 100%;
  padding: 12px 0;
  font-size: 15px;
  background: #111827;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.1s ease;
}
.primary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.primary-btn:hover:not(:disabled) {
  opacity: 0.85;
}
.primary-btn:active:not(:disabled) {
  transform: scale(0.98);
}

/* プログレスバー */
.progress {
  width: 100%;
  height: 6px;
  background: #e2e8f0;
  border-radius: 4px;
  margin-top: 16px;
}
.progress .bar {
  width: 0%;
  height: 100%;
  background: #111827;
  border-radius: 4px;
  transition: width 0.2s ease;
}

/* -----------------------------
   結果エリア
----------------------------- */
.result-box {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #f9fafb;
}

.result-box h2 {
  margin-top: 0;
  font-size: 20px;
  color: #111827;
}

#resultContent {
  font-size: 14px;
  line-height: 1.6;
  margin-top: 12px;
  word-break: break-word;
}

/* 結果内の項目名 */
.result-label {
  font-weight: 600;
  color: #374151;
}

/* リセットボタン */
.secondary-btn {
  margin-top: 16px;
  display: block;
  width: 100%;
  padding: 10px 0;
  font-size: 14px;
  border: 1px solid #9ca3af;
  background: #ffffff;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.secondary-btn:hover {
  background: #f3f4f6;
}

/* エラー表示 */
.error-box {
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
  padding: 12px;
  border-radius: 8px;
  margin: 12px 0;
  font-size: 14px;
}

/* -----------------------------
   寄付導線（共通仕様）
----------------------------- */
.nw-donate {
  text-align: center;
  margin: 24px 0 16px;
  font-size: 13px;
  color: #6b7280;
}
.nw-donate-links {
  margin-top: 6px;
  display: flex;
  justify-content: center;
  gap: 10px;
}
.nw-donate-links a {
  padding: 8px 14px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  background: #ffffff;
  color: #111827;
  font-size: 13px;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.1s ease;
}
.nw-donate-links a:hover {
  background: #f9fafb;
  transform: translateY(-1px);
}

/* usageリンク */
.usage-link {
  text-align: center;
  margin: 28px 0 12px;
  font-size: 14px;
}
.usage-link a {
  color: #1f2937;
  text-decoration: underline;
}

/* -----------------------------
   フッター
----------------------------- */
.nw-footer {
  margin-top: 20px;
  padding: 16px 8px 12px;
  border-top: 1px solid #e5e7eb;
  font-size: 11px;
  color: #6b7280;
  text-align: center;
  line-height: 1.6;
}

.nw-links {
  text-align: center;
  margin: 16px 0 32px;
  font-size: 12px;
}
.nw-links a {
  color: #4b5563;
  text-decoration: none;
  margin: 0 6px;
}
.nw-links a:hover {
  text-decoration: underline;
}

/* -----------------------------
   レスポンシブ変形（重要）
----------------------------- */
@media (max-width: 480px) {
  .primary-btn,
  .secondary-btn {
    padding: 14px 0;
    font-size: 15px;
  }

  .drop-zone {
    padding: 28px 10px;
  }

  .tool-container {
    padding: 12px;
  }

  #resultContent {
    font-size: 13px;
  }
}