/* SIGNED SOUND Style - uimock/css/style.css base (tokens.css required) */
/* --- Reset --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* --- Typography (Signed Sound Brand Guidelines v1.0) --- */
/* Body: Inter Regular + Noto Sans JP。font-size は既存レイアウト互換性の観点から 14px 維持（情報密度優先） */
body {
  font-family: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg);
  min-height: 100vh;
}

/* Headings: Montserrat Bold (H1/H2) + Inter SemiBold (H3) */
h1, h2 {
  font-family: "Montserrat", "Noto Sans JP", sans-serif;
  font-weight: 700;
  line-height: 1.3;
}
h1 { font-size: 32px; }
h2 { font-size: 24px; }

h3 {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-weight: 600;
  font-size: 20px;
  line-height: 1.4;
}

h4, h5, h6 {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-weight: 600;
}

/* Caption: Inter Light */
.caption, small {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-weight: 300;
  font-size: 14px;
}

a {
  color: var(--trust-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Layout --- */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--white);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 10;
}

.main {
  flex: 1;
  /* min-width:0 が無いと flex アイテムが子(横長テーブル)の最小内容幅に
     引っ張られて縮まず、モバイルで .card-body の overflow-x が効かずに
     ページ全体が横に広がってしまう。これを防ぐ。 */
  min-width: 0;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: var(--topbar-height);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sp-xl);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar-title {
  font-size: 18px;
  font-weight: 600;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--gray-dark);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
}

.content {
  flex: 1;
  padding: var(--sp-xl);
}

/* --- User Menu --- */
.topbar-user {
  position: relative;
  cursor: pointer;
}

.user-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  min-width: 180px;
  z-index: 20;
  overflow: hidden;
}

.topbar-user.open .user-menu {
  display: block;
}

.user-menu-item {
  display: block;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--gray-dark);
  text-decoration: none;
  transition: background 0.1s;
}

.user-menu-item:hover {
  background: var(--bg);
  color: var(--navy);
  text-decoration: none;
}

.user-menu-divider {
  height: 1px;
  background: var(--border);
}

.user-menu-item.danger {
  color: var(--danger);
}

.user-menu-item.danger:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

/* --- Sidebar Nav --- */
.sidebar-logo {
  padding: var(--sp-lg) 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.sidebar-logo img {
  width: 140px;
  height: auto;
  display: block;
  margin: 0 auto 4px;
}

.sidebar-logo .subtitle {
  font-size: 10px;
  opacity: 0.6;
  letter-spacing: 1px;
}

/* --- Dark Sidebar (nav + footer) ---
   To revert: remove this block and uncomment "Light Sidebar (original)" below */
.sidebar-nav {
  padding: var(--sp-md) 0;
  flex: 1;
  overflow-y: auto;
  background: var(--navy-dark);
}

.nav-section {
  padding: 0 var(--sp-md);
  margin-bottom: var(--sp-sm);
  margin-top: var(--sp-md);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.5);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.15s;
  font-size: 14px;
  border-left: 3px solid transparent;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  text-decoration: none;
}

.nav-item.active {
  background: rgba(255, 255, 255, 0.15);
  border-left-color: #ffffff;
  color: #ffffff;
  font-weight: 600;
}

.nav-item .icon {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.nav-item.disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}

.nav-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
  margin: 12px 16px;
}

.sidebar-footer {
  padding: var(--sp-md) 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  background: var(--navy-dark);
}


/* --- Card --- */
.card {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: var(--sp-lg);
}

.card-header {
  padding: 20px var(--sp-lg);
  border-bottom: 1px solid var(--border);
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-body {
  padding: var(--sp-lg);
}

.card-body.no-padding {
  padding: 0;
}

/* --- Table --- */
table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

th {
  text-align: left;
  padding: 12px var(--sp-md);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

td {
  padding: 14px var(--sp-md);
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

tr:last-child td {
  border-bottom: none;
}

/* テーブル最終列(詳細ボタン等)の右余白を広めに取り、カード境界に詰まらないようにする */
th:last-child,
td:last-child {
  padding-right: var(--sp-lg);
}

/* --- Badge --- */
.badge {
  display: inline-block;
  padding: var(--sp-xs) 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

/* .badge-authentic: 真正判定（A）/ 音響透かし検出 で使用。Trust Blue はこのバッジでのみ使用 */
.badge-authentic { background: var(--authentic-bg); color: var(--authentic); }
.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger-text); }
.badge-navy    { background: var(--trust-blue-light); color: var(--trust-blue); }
.badge-info    { background: #dbeafe;           color: #1e40af; }
.badge-primary { background: #c7d2fe;           color: #3730a3; }
.badge-secondary { background: #e5e7eb;         color: var(--warning-text); }

/* --- Status Icon --- */
.status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
}

.status-icon.status-success    { background: var(--success-bg); color: var(--success); }
.status-icon.status-authentic  { background: var(--authentic-bg); color: var(--authentic); }
.status-icon.status-warning    { background: var(--warning-bg); color: var(--warning); }
.status-icon.status-danger     { background: var(--danger-bg);  color: var(--danger); }
.status-icon.status-processing { background: var(--trust-blue-light); color: var(--trust-blue); }

/* Letter Grade */
.grade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
}

.grade-a { background: var(--success-bg); color: var(--success); }
.grade-b { background: #dbeafe;           color: #1e40af; }
.grade-c { background: #e0e7ff;           color: #4338ca; }
.grade-d { background: var(--warning-bg); color: var(--warning-text); }
.grade-e { background: var(--danger-bg);  color: var(--danger-text); }
.grade-f { background: #e5e7eb;           color: #6b7280; }

/* Help Icon */
.help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border);
  font-size: 10px;
  font-weight: 600;
  color: var(--gray);
  cursor: help;
  position: relative;
  vertical-align: middle;
  margin-left: 4px;
}

.help-icon .help-popup {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: white;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 400;
  white-space: nowrap;
  z-index: 20;
  line-height: 1.8;
}

.help-icon:hover .help-popup {
  display: block;
}

/* Tooltip */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: white;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}

[data-tooltip]:hover::after {
  opacity: 1;
}

/* --- Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: 10px var(--sp-lg);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary { background: var(--navy); color: white; }
.btn-primary:hover { background: var(--navy-dark); box-shadow: 0 4px 12px rgba(0,64,151,0.3); }

.btn-pink { background: var(--signal-red); color: white; }
.btn-pink:hover { background: var(--signal-red-dark); box-shadow: 0 4px 12px rgba(232,20,91,0.3); }

.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--gray-dark); }
.btn-outline:hover { border-color: var(--navy); color: var(--navy); transform: none; }

.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 16px 40px; font-size: 16px; }

/* --- Stats Grid --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: var(--sp-xl);
}

.stat-card {
  background: var(--white);
  border-radius: 12px;
  padding: var(--sp-lg);
  border: 1px solid var(--border);
}

.stat-card .label {
  font-size: 12px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--sp-sm);
}

.stat-card .value {
  font-size: 32px;
  font-weight: 700;
  color: var(--navy);
}

.stat-card .change {
  font-size: 12px;
  color: var(--success);
  margin-top: var(--sp-xs);
}

/* --- Two Column --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

/* --- Upload Zone --- */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 48px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: var(--sp-lg);
}

.upload-zone:hover {
  border-color: var(--navy);
  background: rgba(0, 64, 151, 0.02);
}

.upload-zone .icon { font-size: 48px; margin-bottom: var(--sp-md); opacity: 0.4; }
.upload-zone .text { font-size: 16px; color: var(--gray-dark); margin-bottom: var(--sp-sm); }
.upload-zone .hint { font-size: 13px; color: var(--gray); }

/* --- Form --- */
.form-group {
  margin-bottom: var(--sp-md);
}

.form-label {
  display: block;
  font-size: 13px;
  color: var(--gray-dark);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input,
.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: white;
  transition: border-color 0.15s;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(0, 64, 151, 0.1);
}

.form-hint {
  font-size: 11px;
  color: var(--gray);
  margin-top: var(--sp-xs);
}

.form-error {
  font-size: 12px;
  color: var(--danger);
  margin-top: var(--sp-xs);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

/* --- Checkbox --- */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  margin-bottom: 12px;
  font-size: 14px;
}

.checkbox-row input[type="checkbox"] {
  accent-color: var(--navy);
  width: 16px;
  height: 16px;
}

/* --- Option Card --- */
.options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
}

.option-card {
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.15s;
}

.option-card:hover { border-color: var(--navy); }
.option-card.selected { border-color: var(--navy); background: rgba(0,64,151,0.03); }
.option-card .title { font-weight: 600; margin-bottom: var(--sp-xs); }
.option-card .desc { font-size: 13px; color: var(--gray); }
.option-card.disabled { opacity: 0.4; pointer-events: none; cursor: default; }

/* --- Process Steps --- */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  max-width: 560px;
}

.step {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  padding: var(--sp-md);
  border-radius: 10px;
  background: var(--white);
  border: 1px solid var(--border);
}

.step.done    { border-color: var(--success); background: #f0fdf4; }
.step.active  { border-color: var(--navy); background: #eff6ff; }

.step-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.step.done .step-icon    { background: var(--success); color: white; }
.step.active .step-icon  { background: var(--navy); color: white; }
.step.pending .step-icon { background: var(--border); color: var(--gray); }

.step-text .title { font-weight: 600; font-size: 14px; }
.step-text .desc  { font-size: 12px; color: var(--gray); margin-top: 2px; }

/* --- Result --- */
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
}

.result-card {
  border-radius: 10px;
  padding: var(--sp-lg);
  border: 1px solid var(--border);
  background: var(--white);
}

.result-card .header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.result-card .header .label { font-size: 13px; font-weight: 600; color: var(--gray-dark); }
.result-card .result-value  { font-size: 20px; font-weight: 700; }
.result-card .detail        { font-size: 12px; color: var(--gray); margin-top: var(--sp-sm); line-height: 1.6; }

.result-success { color: var(--success); }
.result-warning { color: var(--warning); }
.result-danger  { color: var(--danger); }

.overall-result {
  border-radius: 12px;
  padding: var(--sp-xl);
  text-align: center;
  margin-bottom: var(--sp-lg);
}

.overall-result.authentic {
  background: linear-gradient(135deg, var(--trust-blue) 0%, var(--trust-blue-dark) 100%);
  color: white;
}

.overall-result .result-icon  { font-size: 48px; margin-bottom: 12px; }
.overall-result .result-title { font-size: 24px; font-weight: 700; margin-bottom: var(--sp-sm); }
.overall-result .result-desc  { font-size: 14px; opacity: 0.8; }

/* --- Provenance Chain --- */
.provenance-chain {
  display: flex;
  flex-direction: column;
}

.provenance-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  position: relative;
}

.provenance-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 42px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.provenance-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.provenance-detail .title { font-weight: 600; font-size: 13px; }
.provenance-detail .time  { font-size: 11px; color: var(--gray); margin-top: 2px; }

/* --- File Info --- */
.file-info {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  padding: var(--sp-md);
  background: #f8f9fb;
  border-radius: 10px;
  margin-bottom: var(--sp-lg);
}

.file-info .file-icon {
  width: 48px;
  height: 48px;
  background: var(--navy);
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.file-info .name { font-weight: 600; font-size: 14px; word-break: break-all; }
.file-info .meta { font-size: 12px; color: var(--gray); margin-top: 2px; }

/* --- Progress Bar --- */
.progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--navy);
  border-radius: 2px;
  transition: width 0.3s;
}

/* --- Section Label --- */
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

/* --- Auto Process List (固定の自動実施項目を表示。選択UIではない) --- */
.auto-process-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--sp-lg) 0;
  background: #f8f9fb;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.auto-process-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-md);
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.auto-process-item:last-child {
  border-bottom: none;
}

.auto-process-item .check-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.auto-process-item .title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 2px;
  color: var(--gray-dark);
}

.auto-process-item .desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.5;
}

.auto-process-item.disabled {
  opacity: 0.55;
}

.auto-process-item.disabled .check-icon {
  background: var(--border);
  color: var(--gray);
}

.auto-process-note {
  font-size: 12px;
  color: var(--gray);
  margin: -8px 0 var(--sp-lg);
}

/* --- Login Page --- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  width: 400px;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 48px 40px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--sp-xl);
}

.login-logo img {
  width: 160px;
  height: auto;
  margin-bottom: var(--sp-sm);
}

.login-logo .subtitle {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 1px;
}

/* 共同ブランド表示（Signed Sound ブランドガイドライン v1.0 06 CO-BRANDING） */
.login-cobrand {
  margin-top: var(--sp-lg);
  text-align: center;
}
.cobrand-divider {
  width: 40%;
  height: 1px;
  background: var(--border);
  margin: 0 auto var(--sp-md);
}
.cobrand-pair {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--dark-gray);
  letter-spacing: 0.3px;
  white-space: nowrap;
}
.cobrand-name {
  font-weight: 500;
}
.cobrand-sep {
  color: var(--shield-gray);
  font-size: 12px;
}

/* --- Login 同意文言（プライバシーポリシー） --- */
.login-consent {
  margin-top: var(--sp-lg);
  text-align: center;
  font-size: 12px;
  line-height: 1.6;
  color: var(--dark-gray);
}
.login-consent a {
  color: var(--trust-blue);
  text-decoration: none;
}
.login-consent a:hover {
  color: var(--trust-blue-dark);
  text-decoration: underline;
}

/* --- Page Footer（プライバシーポリシー等） --- */
.page-footer {
  text-align: center;
  padding: 16px 24px;
  font-size: 12px;
  color: var(--dark-gray);
}
.page-footer a {
  color: var(--trust-blue);
  text-decoration: none;
}
.page-footer a:hover {
  color: var(--trust-blue-dark);
  text-decoration: underline;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: var(--sp-md);
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  cursor: pointer;
  font-size: 13px;
}

.pagination button.active {
  background: var(--navy);
  color: white;
  border-color: var(--navy);
}


/* --- Dialog --- */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex !important;
  align-items: center;
  justify-content: center;
  z-index: 50;
  backdrop-filter: blur(2px);
}

.dialog {
  background: var(--white);
  border-radius: 16px;
  padding: 48px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  animation: dialogIn 0.2s ease-out;
}

@keyframes dialogIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.dialog-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--success-bg);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
}

.dialog-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.dialog-desc {
  font-size: 14px;
  color: var(--gray-dark);
  line-height: 1.7;
  margin-bottom: 28px;
}

.dialog-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* --- Thumbnail --- */
.thumbnail {
  width: 48px;
  height: 36px;
  border-radius: 4px;
  background: var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--gray);
  overflow: hidden;
}

.content-name-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.content-name-cell > *:not(.thumbnail) {
  min-width: 0;
  word-break: break-all;
}

/* --- Tabs --- */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: var(--sp-lg);
}

.tab {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-dark);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
}

.tab:hover { color: var(--navy); }
.tab.active { color: var(--navy); font-weight: 600; border-bottom-color: var(--navy); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* --- Hamburger Menu --- */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 24px;
  color: var(--text);
  line-height: 1;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 9;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hamburger { display: block; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.open {
    display: block;
  }

  .main { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .options-grid { grid-template-columns: 1fr; }

  /* テーブルはモバイル幅で列が潰れて内容が重なるため、カード内を横スクロールさせる。
     table-layout:fixed のままだと固定幅セルから内容があふれて隣と重なるので、
     auto に戻して内容幅でテーブルを広げ、各セルは折り返さずに横スクロールで読ませる。 */
  .card-body {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .card-body table {
    table-layout: auto;
    min-width: 100%;
  }
  .card-body table th,
  .card-body table td {
    white-space: nowrap;
  }
}