/* =====================================================
   PDF全文検索システム - メインスタイルシート
   デザインシステム: ライトモード + クリーン・清潔感（病院向け）
   ===================================================== */

/* ===== CSS変数 (デザイントークン) ===== */
:root {
  --color-bg: #dcdcdc;
  --color-bg-2: #ffffff;
  --color-bg-3: #ebebeb;
  --color-surface: rgba(255,255,255,0.8);
  --color-surface-hover: rgba(255,255,255,0.95);
  --color-border: rgba(0,0,0,0.12);
  --color-header: #30A8A9;

  --color-primary: #30A8A9;
  --color-primary-light: #3bbdbe;
  --color-primary-dark: #1d7a7b;
  --color-accent: #5ecfcf;
  --color-success: #16a34a;
  --color-danger: #dc2626;
  --color-warn: #d97706;
  --color-info: #30A8A9;

  --color-text: #1e293b;
  --color-text-2: #475569;
  --color-text-3: #94a3b8;

  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 30px rgba(48,168,169,0.25);

  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
}

/* ===== リセット ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--color-primary-light); text-decoration: none; }
a:hover { color: var(--color-accent); }

/* ===== 共通プログレスモーダル ===== */
.site-prog-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: none; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.5);
}
.site-prog-modal {
  background: var(--color-bg-2);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 2rem 2.5rem;
  width: 340px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
}
.site-prog-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(48,168,169,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
}
.site-prog-spinner { animation: siteProgSpin 0.9s linear infinite; }
@keyframes siteProgSpin { to { transform: rotate(360deg); } }
.site-prog-icon--done {
  background: rgba(34,197,94,0.12); color: #16a34a;
}
.site-prog-icon--done::after {
  content: ''; display: block; width: 20px; height: 11px;
  border-left: 3px solid #16a34a; border-bottom: 3px solid #16a34a;
  transform: rotate(-45deg) translate(2px, -3px);
}
.site-prog-icon--done svg { display: none; }
.site-prog-icon--error {
  background: rgba(239,68,68,0.12); color: #dc2626;
}
.site-prog-icon--error::after {
  content: '✕'; font-size: 1.4rem; font-weight: 700; color: #dc2626;
}
.site-prog-icon--error svg { display: none; }
.site-prog-title { font-size: 1rem; font-weight: 600; color: var(--color-text); }
.site-prog-message { font-size: 0.82rem; color: var(--color-text-2); min-height: 1.2em; }
.site-prog-bar-wrap {
  width: 100%; height: 8px;
  background: var(--color-border); border-radius: 99px; overflow: hidden;
}
.site-prog-bar { height: 100%; border-radius: 99px; width: 0; transition: width 0.2s ease; }
.site-prog-bar--indet {
  width: 40% !important; background: var(--color-primary);
  animation: siteProgIndet 1.2s ease-in-out infinite;
}
@keyframes siteProgIndet {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}
.site-prog-bar--det  { background: var(--color-primary); }
.site-prog-bar--done { background: #16a34a; }
.site-prog-bar--error { background: #dc2626; }
.site-prog-pct { font-size: 0.82rem; color: var(--color-text-2); min-height: 1.2em; }
.site-prog-note { font-size: 0.75rem; color: var(--color-text-3); }

/* ===== ナビゲーション ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header);
  border-bottom: 1px solid rgba(0,0,0,0.15);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: #ffffff;
  flex-shrink: 0;
  transition: color var(--transition);
}
.nav-brand:hover { color: rgba(255,255,255,0.8); }
.nav-icon { width: 22px; height: 22px; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 0.1rem;
  flex: 1;
  flex-wrap: nowrap;
}
.nav-link {
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 500;
  background: transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: #ffffff;
  background: rgba(255,255,255,0.15);
}
.nav-link.active {
  color: #ffffff;
  background: rgba(255,255,255,0.25);
  font-weight: 600;
}
.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
  flex-shrink: 0;
}

/* ===== ハンバーガーメニュー ===== */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: 0.5rem;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--color-header);
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-link {
  padding: 0.75rem 1.5rem;
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
}
.nav-mobile-link:hover { color: #ffffff; background: rgba(255,255,255,0.12); }
.user-name {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
}

/* ===== ボタン ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 15px rgba(48,168,169,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(48,168,169,0.4);
  filter: brightness(1.08);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.btn-full { width: 100%; justify-content: center; padding: 0.8rem; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.4rem;
  background: var(--color-bg-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover { background: var(--color-bg-3); }

.btn-danger {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.4rem;
  background: rgba(220,38,38,0.08);
  color: var(--color-danger);
  border: 1px solid rgba(220,38,38,0.25);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-danger:hover { background: rgba(220,38,38,0.15); }
.btn-danger:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-logout {
  padding: 0.35rem 0.9rem;
  background: #ffffff;
  color: var(--color-primary-dark);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-logout:hover { background: rgba(255,255,255,0.85); color: var(--color-danger); border-color: rgba(220,38,38,0.3); }

.btn-icon {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  color: var(--color-text-2);
  transition: all var(--transition);
}
.btn-icon:hover { background: var(--color-bg-3); }
.btn-icon-danger:hover { border-color: rgba(220,38,38,0.35); color: var(--color-danger); }
a.btn-icon { display: inline-block; text-decoration: none; color: inherit; }

/* ===== スピナー ===== */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
.spinner-large {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(48,168,169,0.2);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== ページコンテナ ===== */
.main-content { min-height: calc(100vh - 60px); }
.page-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
}
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}
.page-subtitle {
  color: var(--color-text-2);
  margin-top: 0.3rem;
  font-size: 0.95rem;
}

/* ===== ログイン画面 ===== */
.login-body {
  background: #dcdcdc;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-container {
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
}
.login-card {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.login-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.login-logo svg { width: 64px; height: 64px; filter: drop-shadow(var(--shadow-glow)); }
.login-logo-text {
  font-size: 2.8rem;
  font-weight: 700;
  color: #30A8A9;
  letter-spacing: 0.05em;
  line-height: 1;
}
.login-title {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--color-primary-dark);
}
.login-subtitle {
  text-align: center;
  color: var(--color-text-3);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}
.login-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-label { font-size: 0.85rem; color: var(--color-text-2); font-weight: 500; }
.form-input {
  padding: 0.7rem 1rem;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--color-primary);
  background: var(--color-bg-2);
  box-shadow: 0 0 0 3px rgba(48,168,169,0.12);
}
.form-input::placeholder { color: var(--color-text-3); }
.password-wrapper { position: relative; }
.password-wrapper .form-input { padding-right: 3rem; width: 100%; }
.password-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-3);
  display: flex;
  align-items: center;
}
.error-message {
  background: rgba(220,38,38,0.07);
  border: 1px solid rgba(220,38,38,0.25);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  color: var(--color-danger);
  font-size: 0.85rem;
}

/* ===== 検索ヒーロー ===== */
.search-hero {
  text-align: center;
  padding: 2.5rem 0 2rem;
}
.search-form { margin-top: 1.5rem; }
.search-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.4rem 0.4rem 1.2rem;
  gap: 0.5rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.search-input-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(48,168,169,0.12), var(--shadow-md);
}
.search-icon { width: 20px; height: 20px; color: var(--color-text-3); flex-shrink: 0; }
.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 1rem;
  padding: 0.5rem 0;
}
.search-input::placeholder { color: var(--color-text-3); }
.btn-search {
  padding: 0.6rem 1.4rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-search:hover { filter: brightness(1.1); transform: scale(1.02); }
.btn-search:disabled { opacity: 0.6; cursor: not-allowed; }
.search-options {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.75rem;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-2);
  cursor: pointer;
}
.search-status {
  text-align: center;
  color: var(--color-text-3);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* ===== ナビバー内検索フォーム ===== */
.navbar-search-form {
  flex: 1;
  max-width: 480px;
  margin: 0 1rem;
}
.navbar-search-wrapper {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-full);
  padding: 0.2rem 0.25rem 0.2rem 0.75rem;
  gap: 0.4rem;
  transition: all var(--transition);
}
.navbar-search-wrapper:focus-within {
  background: #ffffff;
  border-color: rgba(255,255,255,0.9);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
}
.navbar-search-icon { width: 15px; height: 15px; color: var(--color-primary); flex-shrink: 0; }
.navbar-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.85rem;
  padding: 0.3rem 0;
}
.navbar-search-input::placeholder { color: var(--color-text-3); }
.navbar-search-btn {
  padding: 0.3rem 0.9rem;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.navbar-search-btn:hover { filter: brightness(1.1); }
.navbar-search-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ===== ナビバー内フィルター行 ===== */
.navbar-filter-row {
  background: rgba(0,0,0,0.18);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 0.3rem 1.5rem;
}
.navbar-filter-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0;
  padding: 0;
  max-width: 1280px;
  margin: 0 auto;
}
.navbar-filter-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.navbar-filter-label {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  white-space: nowrap;
}
.navbar-filter-select,
.navbar-filter-input {
  font-size: 0.78rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  color: #fff;
  outline: none;
  height: 26px;
  font-family: var(--font-family);
}
.navbar-filter-select { min-width: 120px; max-width: 180px; }
.navbar-filter-input  { min-width: 140px; max-width: 200px; }
.navbar-filter-select option { background: var(--color-header); color: #fff; }
.navbar-filter-select:focus,
.navbar-filter-input:focus {
  border-color: rgba(255,255,255,0.5);
  background: rgba(255,255,255,0.15);
}
.navbar-filter-input::placeholder { color: rgba(255,255,255,0.4); }
.navbar-filter-clear {
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-sm);
  background: transparent;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}
.navbar-filter-clear:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

/* ===== 検索ページ ===== */
.search-page {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 1.5rem;
  overflow: hidden;
}

/* ===== スプリットレイアウト ===== */
.search-split-layout {
  display: flex;
  gap: 1rem;
  height: 100%;
  min-height: 500px;
}

/* 左パネル: サムネイルリスト */
.results-list-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.results-thumb-list {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 0.3rem;
}
.results-thumb-list::-webkit-scrollbar { width: 4px; }
.results-thumb-list::-webkit-scrollbar-track { background: transparent; }
.results-thumb-list::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }
.preview-thumb {
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition);
  background: var(--color-bg-2);
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.3s ease;
  box-shadow: var(--shadow-sm);
}
.preview-thumb:hover { border-color: rgba(48,168,169,0.4); box-shadow: var(--shadow-md); }
.preview-thumb.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
}
.thumb-canvas-wrap {
  flex: 1;
  min-height: 0;
  background: var(--color-bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.thumb-canvas-wrap canvas { width: 100%; height: auto; display: block; }
.thumb-footer {
  padding: 0.15rem 0.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.15rem;
}
.thumb-filename {
  font-size: 0.55rem;
  color: var(--color-text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  flex: 1;
}

/* ダウンロードボタン (サムネイルフッター用) */
.thumb-dl-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--color-text-3);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
}
.thumb-dl-btn:hover {
  background: rgba(48,168,169,0.15);
  color: var(--color-primary);
}

/* ページバッジ (サムネイルフッター用) */
.result-page-badge {
  background: rgba(48,168,169,0.1);
  color: var(--color-primary-dark);
  border: 1px solid rgba(48,168,169,0.25);
  border-radius: var(--radius-full);
  padding: 0.05rem 0.25rem;
  font-size: 0.55rem;
  font-weight: 600;
  flex-shrink: 0;
}

/* 右パネル: PDFビューワー */
.results-viewer-panel {
  flex: 1;
  min-width: 0;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.viewer-main-info {
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-3);
  flex-shrink: 0;
}
.viewer-main-filename {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  margin-right: 1rem;
}
.viewer-main-page { font-size: 0.8rem; color: var(--color-text-2); }
.viewer-canvas-area {
  flex: 1;
  overflow: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 0;
}
.viewer-page-container {
  margin-bottom: 1rem;
  flex-shrink: 0;
  position: relative;
}
.viewer-page-container canvas {
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: block;
}
.viewer-page-container.viewer-page-matched canvas {
  box-shadow: 0 0 0 3px var(--color-primary), var(--shadow-lg);
}
.viewer-page-label {
  font-size: 0.7rem;
  color: var(--color-text-3);
  text-align: center;
  margin-top: 0.3rem;
}
.viewer-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-3);
  gap: 0.5rem;
}
.viewer-placeholder svg { width: 48px; height: 48px; opacity: 0.3; }
.viewer-placeholder p { font-size: 0.9rem; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== ページネーション ===== */
.pagination-container { display: flex; justify-content: center; margin-top: 0.5rem; }
.page-btns { display: flex; gap: 0.4rem; }
.page-btn {
  min-width: 2.2rem;
  padding: 0.4rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-2);
  font-family: var(--font-family);
  cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover { background: var(--color-surface-hover); color: var(--color-text); }
.page-btn.active {
  background: rgba(48,168,169,0.12);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  font-weight: 600;
}

/* ===== 空状態・スケルトン ===== */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-2);
}
.empty-icon { width: 64px; height: 64px; margin: 0 auto 1rem; color: var(--color-text-3); display: block; }
.empty-state p { font-size: 1.1rem; margin-bottom: 0.4rem; }
.empty-state span { font-size: 0.85rem; color: var(--color-text-3); }
.loading-skeleton {
  height: 120px;
  background: linear-gradient(90deg, var(--color-bg-3) 25%, var(--color-bg-2) 50%, var(--color-bg-3) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
}
@keyframes shimmer { from { background-position: -200% 0; } to { background-position: 200% 0; } }
.error-card {
  background: rgba(220,38,38,0.06);
  border: 1px solid rgba(220,38,38,0.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  color: var(--color-danger);
}

/* ===== アップロード ===== */
.upload-area { max-width: 680px; margin: 0 auto; }
.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(48,168,169,0.05);
}
.upload-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  color: var(--color-primary-light);
  display: block;
}
.dropzone-text { font-size: 1.1rem; font-weight: 600; color: var(--color-text); margin-bottom: 0.3rem; }
.dropzone-sub { font-size: 0.85rem; color: var(--color-text-3); margin-bottom: 1rem; }
.dropzone-buttons { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.btn-select {
  padding: 0.5rem 1.25rem;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  background: white;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-select:hover { background: var(--color-primary); color: white; }
.file-list { margin: 1.25rem 0; display: flex; flex-direction: column; gap: 0.5rem; }
.file-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.file-icon { width: 20px; height: 20px; color: var(--color-primary-light); flex-shrink: 0; }
.file-info { flex: 1; min-width: 0; }
.file-name { display: block; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-size { font-size: 0.75rem; color: var(--color-text-3); }
.file-status { font-size: 0.8rem; white-space: nowrap; color: var(--color-text-2); }
.file-status.uploading { color: var(--color-info); }
.file-status.done { color: var(--color-success); }
.file-status.error { color: var(--color-danger); }
.file-remove {
  background: transparent;
  border: none;
  color: var(--color-text-3);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.file-remove:hover { color: var(--color-danger); background: rgba(220,38,38,0.08); }
#uploadActions { display: flex; gap: 0.75rem; margin-top: 1rem; }

/* ===== アップロード進捗ポップアップ ===== */
.progress-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.progress-modal {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: min(480px, 90vw);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  text-align: center;
}
.progress-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}
.progress-sub {
  font-size: 0.95rem;
  color: var(--color-text-2);
  margin-bottom: 1.5rem;
}
.progress-bar-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.progress-bar-track {
  flex: 1;
  height: 10px;
  background: var(--color-border);
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 99px;
  transition: width 0.3s ease;
  width: 0%;
}
.progress-pct {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  min-width: 3rem;
  text-align: right;
}
.progress-detail {
  font-size: 0.82rem;
  color: var(--color-text-3);
  margin-bottom: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.progress-note {
  font-size: 0.78rem;
  color: var(--color-text-3);
  margin-top: 0.5rem;
}

/* ===== 一括操作ツールバー ===== */
.bulk-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
}
.bulk-toolbar .btn-primary {
  background: #fff;
  color: var(--color-primary);
  padding: 0.3rem 0.9rem;
  font-size: 0.85rem;
}
.bulk-toolbar .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
  padding: 0.3rem 0.9rem;
  font-size: 0.85rem;
}
.btn-bulk-danger {
  background: var(--color-danger);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.9rem;
  font-size: 0.85rem;
  cursor: pointer;
  font-weight: 500;
}
.btn-bulk-danger:hover { background: #b91c1c; }
.bulk-count { font-size: 0.9rem; font-weight: 600; }

/* ===== ZIPダウンロード進捗モーダル ===== */
.zip-progress-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: var(--color-primary);
  transition: background 0.3s, color 0.3s;
}
.zip-progress-icon.zip-icon-done { background: #dcfce7; color: var(--color-success); }
.zip-progress-icon.zip-icon-error { background: #fee2e2; color: var(--color-danger); }

.zip-progress-bar-wrap {
  height: 8px;
  background: var(--color-bg-3);
  border-radius: 999px;
  overflow: hidden;
  margin: 1.25rem 0 0.5rem;
}
.zip-progress-bar {
  height: 100%;
  border-radius: 999px;
  background: var(--color-primary);
  transition: width 0.4s ease;
}
.zip-progress-bar.zip-bar-indeterminate {
  width: 40%;
  animation: zip-slide 1.4s ease-in-out infinite;
}
.zip-progress-bar.zip-bar-done { background: var(--color-success); }
.zip-progress-bar.zip-bar-error { background: var(--color-danger); }

@keyframes zip-slide {
  0%   { margin-left: -40%; }
  100% { margin-left: 100%; }
}

.zip-progress-sub {
  font-size: 0.8rem;
  color: var(--color-text-3);
  margin: 0;
}

/* ===== 文書管理テーブル ===== */
.table-container { overflow-x: auto; border-radius: var(--radius-md); }
.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.doc-table th {
  text-align: left;
  padding: 0.8rem 1rem;
  background: var(--color-bg-3);
  color: var(--color-text-2);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border);
}
.doc-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(29,122,123,0.06);
  vertical-align: middle;
}
.doc-row { transition: background var(--transition); }
.doc-row:hover { background: var(--color-surface-hover); }
.doc-name { display: flex; align-items: center; gap: 0.5rem; font-weight: 500; }
.doc-actions { display: flex; gap: 0.4rem; }
.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-gray { background: rgba(100,116,139,0.12); color: var(--color-text-2); }
.badge-blue { background: rgba(48,168,169,0.1); color: var(--color-primary-dark); }
.badge-green { background: rgba(22,163,74,0.1); color: var(--color-success); }
.badge-red { background: rgba(220,38,38,0.1); color: var(--color-danger); }

/* ===== モーダル ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,40,80,0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  animation: fadeIn 0.15s ease;
}
.modal-card {
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.2s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes scaleIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.75rem; }
.modal-body { font-size: 0.95rem; color: var(--color-text-2); margin-bottom: 0.5rem; }
.modal-warn { font-size: 0.82rem; color: var(--color-danger); margin-bottom: 1.5rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.75rem; }

/* ===== ビューワー ===== */
.viewer-body {
  background: #dcdcdc;
  margin: 0;
  overflow-x: hidden;
}
.viewer-toolbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header);
  border-bottom: 1px solid rgba(0,0,0,0.15);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  padding: 0.5rem 1.5rem;
  gap: 1rem;
  height: 52px;
}
.viewer-filename {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 500;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.toolbar-controls { display: flex; align-items: center; gap: 0.5rem; }
.toolbar-btn {
  padding: 0.3rem 0.7rem;
  background: #ffffff;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-sm);
  color: var(--color-primary-dark);
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.toolbar-btn:hover { background: rgba(255,255,255,0.85); }
.toolbar-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.page-indicator {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: #ffffff;
}
.page-indicator input {
  width: 52px;
  padding: 0.25rem 0.4rem;
  background: #ffffff;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 0.85rem;
  text-align: center;
  outline: none;
}
.page-indicator input:focus {
  border-color: rgba(255,255,255,0.9);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.2);
}
.zoom-level { font-size: 0.82rem; color: #ffffff; min-width: 2.8rem; text-align: center; }
.viewer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - 52px);
  padding: 1.5rem;
}
.viewer-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem;
  color: var(--color-text-2);
}
#pagesContainer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: 100%;
}
.page-wrapper {
  position: relative;
}
.page-canvas {
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  max-width: 100%;
  display: block;
}
.viewer-loading .error { color: var(--color-danger); }

/* ===== グループ管理 ===== */
.group-detail-panel {
  margin-top: 1.5rem;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  animation: fadeIn 0.2s ease;
}
.group-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.group-detail-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.group-detail-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.group-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.group-section-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.member-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--color-bg-3);
  border-radius: var(--radius-sm);
  margin-bottom: 0.35rem;
}
.member-info { display: flex; flex-direction: column; gap: 0.1rem; }
.member-email { font-size: 0.9rem; color: var(--color-text); }
.member-name { font-size: 0.75rem; color: var(--color-text-3); }
.doc-group-cell { font-size: 0.8rem; }

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  /* ナビバー: 1行目にブランド+ユーザー、2行目に検索フォーム */
  .nav-container {
    height: auto;
    flex-wrap: wrap;
    padding: 0.5rem 1rem;
    gap: 0.4rem;
  }
  .nav-brand { order: 1; flex-shrink: 0; }
  .nav-links { display: none; }
  .nav-user { order: 2; margin-left: auto; gap: 0.5rem; }
  .user-name { display: none; }
  .nav-hamburger { display: flex; order: 3; margin-left: 0.25rem; }
  .navbar-search-form {
    order: 4;
    width: 100%;
    max-width: none;
    margin: 0 0 0.3rem;
    flex-basis: 100%;
  }

  /* 検索ページ: モバイルではナビバーが2段になるため overflow 解除 */
  .navbar-filter-row { padding: 0.3rem 1rem; }
  .navbar-filter-inner { flex-wrap: wrap; gap: 0.5rem; }
  .search-page { overflow: visible; padding: 0.5rem 1rem; }
  .search-split-layout { flex-direction: column; height: auto; min-height: unset; }
  .results-list-panel { width: 100%; overflow-x: auto; }
  .results-thumb-list { grid-template-columns: repeat(5, 1fr); flex: none; }

  .page-container { padding: 1.5rem 1rem; }
  .doc-table { font-size: 0.8rem; }
  .doc-table th, .doc-table td { padding: 0.6rem 0.5rem; }
  .viewer-toolbar { flex-wrap: wrap; height: auto; padding: 0.75rem; }
  .toolbar-controls { flex-wrap: wrap; }
}

/* ===== フォルダカード ===== */
.folder-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.folder-card {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1rem;
  background: var(--color-bg-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  min-width: 160px;
  max-width: 260px;
  position: relative;
}
.folder-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.folder-card-active {
  border-color: var(--color-primary);
  background: rgba(48,168,169,0.06);
}
.folder-card-icon { flex-shrink: 0; }
.folder-card-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}
.folder-card-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.folder-card-count {
  font-size: 0.75rem;
  color: var(--color-text-3);
}
.folder-card-actions {
  display: flex;
  gap: 0.15rem;
  opacity: 0;
  transition: opacity var(--transition);
}
.folder-card:hover .folder-card-actions { opacity: 1; }

/* ===== フォームインプット ===== */
.form-input {
  padding: 0.55rem 0.85rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-family);
  background: #fff;
  color: var(--color-text);
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus { border-color: var(--color-primary); }

/* ===== エクスプローラーレイアウト ===== */
.explorer-layout {
  display: flex;
  height: calc(100vh - 56px);  /* ナビバーの高さを引く */
  overflow: hidden;
  background: var(--color-bg);
}

/* 左サイドバー（フォルダツリー） */
.explorer-sidebar {
  width: 240px;
  min-width: 180px;
  max-width: 320px;
  background: var(--color-bg-2);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
  resize: horizontal;
}
.explorer-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.explorer-tree {
  flex: 1;
  overflow-y: auto;
  padding: 0.4rem 0;
}
.tree-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--color-text);
  border-radius: 0;
  transition: background var(--transition);
  position: relative;
  user-select: none;
}
.tree-item:hover { background: var(--color-bg-3); }
.tree-item.active {
  background: rgba(48,168,169,0.1);
  color: var(--color-primary-dark);
  font-weight: 600;
}
.tree-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
}
.tree-item-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tree-item-count {
  font-size: 0.72rem;
  color: var(--color-text-3);
  background: var(--color-bg-3);
  border-radius: var(--radius-full);
  padding: 0.05rem 0.45rem;
  flex-shrink: 0;
}
.tree-item-actions {
  display: none;
  gap: 0.1rem;
  flex-shrink: 0;
}
.tree-item:hover .tree-item-actions { display: flex; }
.tree-item.active .tree-item-actions { display: flex; }
.tree-action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.15rem 0.2rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--color-text-3);
  line-height: 1;
  transition: background var(--transition), color var(--transition);
}
.tree-action-btn:hover { background: var(--color-bg); color: var(--color-text); }
.tree-action-btn.danger:hover { background: #fee2e2; color: var(--color-danger); }

/* リサイズハンドル */
.explorer-resizer {
  width: 4px;
  background: transparent;
  cursor: col-resize;
  flex-shrink: 0;
  transition: background var(--transition);
}
.explorer-resizer:hover { background: var(--color-primary); }

/* 右メインパネル */
.explorer-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}
.explorer-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-2);
  flex-shrink: 0;
  flex-wrap: wrap;
  min-height: 48px;
}
.explorer-location {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.explorer-bulk-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(48,168,169,0.08);
  border-bottom: 1px solid rgba(48,168,169,0.2);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.explorer-content {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}

/* テーブル（エクスプローラー用） */
.explorer-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.explorer-table th {
  position: sticky;
  top: 0;
  background: var(--color-bg-3);
  padding: 0.55rem 0.75rem;
  text-align: left;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-3);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  z-index: 1;
}
.explorer-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  vertical-align: middle;
}
.explorer-table tr:last-child td { border-bottom: none; }
.explorer-table tbody tr:hover { background: var(--color-bg-3); }
.explorer-table .col-check { width: 2rem; text-align: center; }
.explorer-table .col-name { min-width: 200px; }
.explorer-table .col-pages { width: 70px; text-align: right; }
.explorer-table .col-status { width: 110px; }
.explorer-table .col-date { width: 140px; white-space: nowrap; }
.explorer-table .col-actions { width: 120px; white-space: nowrap; }

.explorer-file-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
}
.explorer-file-name svg { flex-shrink: 0; color: var(--color-text-3); }

/* モバイル対応 */
@media (max-width: 768px) {
  .explorer-layout { flex-direction: column; height: auto; }
  .explorer-sidebar { width: 100%; max-width: none; height: auto; max-height: 200px; border-right: none; border-bottom: 1px solid var(--color-border); }
  .explorer-tree { display: flex; flex-wrap: wrap; gap: 0.25rem; padding: 0.5rem; flex-direction: row; }
  .tree-item { padding: 0.35rem 0.65rem; border-radius: var(--radius-sm); border: 1px solid var(--color-border); }
  .tree-item.active { border-color: var(--color-primary); }
  .tree-item::before { display: none; }
  .explorer-resizer { display: none; }
  .explorer-main { min-height: 400px; }
}

/* エクスプローラーページでは main-content を flex コンテナにして高さを合わせる */
.main-content:has(.explorer-layout) {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 56px);
  overflow: hidden;
  min-height: unset;
}
.main-content:has(.explorer-layout) .explorer-layout {
  flex: 1;
  min-height: 0;
}