:root {
  --brand-from:      #667eea;
  --brand-to:        #764ba2;
  --brand-mid:       #7167e8;

  --bg-page:         #f0f2f8;
  --bg-card:         #ffffff;
  --bg-subtle:       #f7f9fc;

  --text-primary:    #1a202c;
  --text-secondary:  #4a5568;
  --text-muted:      #718096;
  --text-faint:      #a0aec0;

  --border-default:  #e2e8f0;
  --border-subtle:   #edf2f7;
  --border-brand:    rgba(102, 126, 234, 0.25);

  --shadow-xs:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg:  0 8px 28px rgba(0,0,0,0.10), 0 3px 10px rgba(0,0,0,0.05);
  --shadow-xl:  0 16px 40px rgba(0,0,0,0.12), 0 6px 16px rgba(0,0,0,0.06);

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  16px;
  --radius-xl:  20px;

  --transition-fast:   0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   ダークモード
   ============================================ */
[data-theme="dark"] {
  --bg-page:         #0e1016;
  --bg-card:         #181b24;
  --bg-subtle:       #1f2330;

  --text-primary:    #e8eaf0;
  --text-secondary:  #c3c7d4;
  --text-muted:      #9096a8;
  --text-faint:      #6b7280;

  --border-default:  #2a2f3d;
  --border-subtle:   #242836;
  --border-brand:    rgba(129, 148, 245, 0.35);

  --shadow-xs:  0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.45), 0 2px 6px rgba(0,0,0,0.3);
  --shadow-lg:  0 8px 28px rgba(0,0,0,0.5), 0 3px 10px rgba(0,0,0,0.35);
  --shadow-xl:  0 16px 40px rgba(0,0,0,0.55), 0 6px 16px rgba(0,0,0,0.4);
}

[data-theme="dark"] body {
  background-image:
    radial-gradient(ellipse at 20% 0%,  rgba(102,126,234,0.14) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(118,75,162,0.10)  0%, transparent 50%);
}

[data-theme="dark"] .control-panel,
[data-theme="dark"] .progress,
[data-theme="dark"] .summary,
[data-theme="dark"] .news-section,
[data-theme="dark"] .actions,
[data-theme="dark"] .agent-info,
[data-theme="dark"] .history-section,
[data-theme="dark"] .learning-section {
  background: linear-gradient(145deg, #181b24 0%, #14161d 100%);
  border-color: rgba(255,255,255,0.06);
}

[data-theme="dark"] .news-item,
[data-theme="dark"] .control-row input,
[data-theme="dark"] .control-row select {
  background: #1b1e28;
  color: var(--text-primary);
}

[data-theme="dark"] .control-row input::placeholder {
  color: var(--text-faint);
}

[data-theme="dark"] #summaryContent {
  background: linear-gradient(145deg, #1c2030 0%, #171a24 100%);
  border-color: rgba(255,255,255,0.06);
}

[data-theme="dark"] .agent-card {
  background: linear-gradient(145deg, #1c2030 0%, #171a24 100%);
  border-color: rgba(129,148,245,0.18);
}

[data-theme="dark"] #actionsList li {
  background: #1c2030;
  border-color: rgba(255,255,255,0.05);
}

[data-theme="dark"] .history-item {
  background: #1c2030;
  border-color: rgba(255,255,255,0.06);
}

[data-theme="dark"] .cache-badge {
  background: linear-gradient(135deg, #202b45, #1c2540);
  color: #93c5fd;
  border-color: #2c3a5c;
}

[data-theme="dark"] .learning-stat {
  background: #1c2030;
  border-color: rgba(255,255,255,0.06);
}

[data-theme="dark"] .feedback-btn {
  background: #1b1e28;
  color: var(--text-secondary);
}

/* ============================================
   リセット
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3,
p, ul, ol, li,
section, header, footer, main, div,
input, select, button {
  margin: 0;
  padding: 0;
}

/* ============================================
   ベース
   ============================================ */
body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Hiragino Sans",
    "Yu Gothic UI",
    sans-serif;

  background: var(--bg-page);
  background-image:
    radial-gradient(ellipse at 20% 0%,  rgba(102,126,234,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(118,75,162,0.06)  0%, transparent 50%);
  background-attachment: fixed;

  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  word-break: break-word;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  background:
    linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 60px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* メッシュ風オーバーレイ */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 50%,  rgba(255,255,255,0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 15%,  rgba(255,255,255,0.12) 0%, transparent 35%),
    radial-gradient(circle at 50% 100%, rgba(255,255,255,0.05) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

/* ノイズテクスチャ風 */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  line-height: 1.25;
  text-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.subtitle {
  opacity: 0.9;
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 580px;
  margin: 0 auto;
  font-weight: 400;
}

/* ============================================
   テーマ切替ボタン
   ============================================ */
.theme-toggle {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.24);
  transform: scale(1.08) rotate(12deg);
}

/* ============================================
   Hero バッジ
   ============================================ */
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
}

.badge {
  display: inline-block;
  background: rgba(255,255,255,0.14);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.28);
  letter-spacing: 0.02em;
  transition: background var(--transition-fast);
}

.badge:hover {
  background: rgba(255,255,255,0.22);
}

/* ============================================
   Container
   ============================================ */
.container {
  width: 100%;
  max-width: 1000px;
  margin: -40px auto 56px;
  padding: 0 16px;
  position: relative;
  z-index: 5;
}

/* ============================================
   共通カード
   ============================================ */
.control-panel,
.progress,
.summary,
.news-section,
.actions,
.agent-info,
.history-section,
.learning-section {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255,255,255,0.8);
  padding: 28px;
  margin-bottom: 20px;
  overflow: hidden;
  transition: box-shadow var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
}

.control-panel:hover,
.summary:hover,
.news-section:hover,
.actions:hover,
.history-section:hover,
.learning-section:hover {
  box-shadow: var(--shadow-lg);
}

/* ============================================
   Control Panel
   ============================================ */
.control-panel {
  border: 1px solid var(--border-brand);
  background:
    linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
}

.panel-title {
  margin-bottom: 22px;
}

.panel-title h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding-left: 14px;
  margin-bottom: 6px;
  line-height: 1.4;
  position: relative;
}

/* グラデーションアクセントライン */
.panel-title h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--brand-from), var(--brand-to));
}

.panel-title p {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding-left: 14px;
}

/* ============================================
   コントロール行
   ============================================ */
.control-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.control-row label {
  min-width: 150px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.control-row input,
.control-row select {
  flex: 1;
  width: 100%;
  min-width: 200px;
  padding: 11px 14px;
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-md);
  background: #fff;
  font-size: 0.97rem;
  color: var(--text-primary);
  transition:
    border-color var(--transition-fast),
    box-shadow   var(--transition-fast),
    background   var(--transition-fast);
  outline: none;
}

.control-row input::placeholder {
  color: var(--text-faint);
}

.control-row input:hover,
.control-row select:hover {
  border-color: rgba(102,126,234,0.4);
}

.control-row input:focus,
.control-row select:focus {
  border-color: var(--brand-from);
  box-shadow:
    0 0 0 3px rgba(102,126,234,0.12),
    0 1px 4px rgba(102,126,234,0.08);
  background: #fdfeff;
}

/* ============================================
   Notice Box
   ============================================ */
.notice-box {
  margin-top: 20px;
  padding: 14px 16px;
  background:
    linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.04));
  border-radius: var(--radius-md);
  border-left: 3px solid var(--brand-from);
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.notice-box p {
  font-weight: 600;
  margin-bottom: 4px;
}

.notice-box ul {
  padding-left: 18px;
  margin-top: 6px;
}

.notice-box li {
  margin-bottom: 3px;
  color: var(--text-muted);
}

/* ============================================
   ボタン
   ============================================ */
.btn-primary {
  width: 100%;
  border: none;
  border-radius: var(--radius-md);
  padding: 15px 18px;
  background:
    linear-gradient(135deg, #667eea 0%, #7b5fdc 50%, #764ba2 100%);
  background-size: 200% 200%;
  background-position: 0% 50%;
  color: #fff;
  font-size: 1.0rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  margin-top: 8px;
  box-shadow:
    0 4px 14px rgba(102,126,234,0.35),
    0 1px 4px  rgba(102,126,234,0.2),
    inset 0 1px 0 rgba(255,255,255,0.15);
  transition:
    background-position var(--transition-slow),
    transform  var(--transition-fast),
    box-shadow var(--transition-normal);
}

/* 光沢レイヤー */
.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    105deg,
    transparent 20%,
    rgba(255,255,255,0.18) 50%,
    transparent 80%
  );
  transition: left 0.55s ease;
  pointer-events: none;
}

.btn-primary:hover::before {
  left: 150%;
}

.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow:
    0 8px 24px rgba(102,126,234,0.40),
    0 3px 8px  rgba(102,126,234,0.25),
    inset 0 1px 0 rgba(255,255,255,0.18);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow:
    0 2px 8px rgba(102,126,234,0.30),
    inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ============================================
   hidden
   ============================================ */
.hidden {
  display: none !important;
}

/* ============================================
   セクション見出し（共通）
   ============================================ */
.section-header h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding-left: 14px;
  margin-bottom: 20px;
  line-height: 1.4;
  position: relative;
}

.section-header h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--brand-from), var(--brand-to));
}

.summary h2,
.news-section h2,
.actions h2,
.progress h2,
.progress h3,
.agent-info h2,
.history-section h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding-left: 14px;
  margin-bottom: 20px;
  line-height: 1.4;
  position: relative;
}

.summary h2::before,
.news-section h2::before,
.actions h2::before,
.progress h2::before,
.progress h3::before,
.agent-info h2::before,
.history-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--brand-from), var(--brand-to));
}

/* ============================================
   エラーボックス
   ============================================ */
.error-box {
  background:
    linear-gradient(135deg, #fff5f5, #fff8f8);
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  line-height: 1.7;
  box-shadow: 0 2px 8px rgba(239,68,68,0.08);
}

.error-box h3 {
  margin-bottom: 6px;
  font-size: 0.97rem;
  font-weight: 700;
}

/* ============================================
   Progress
   ============================================ */
.progress {
  position: relative;
  background:
    linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
}

#progressList {
  list-style: none;
}

#progressList li {
  position: relative;
  padding: 13px 14px 13px 46px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  min-height: 46px;
  display: flex;
  align-items: center;
  font-size: 0.93rem;
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition:
    background var(--transition-fast),
    color    var(--transition-fast);
}

#progressList li:last-child {
  border-bottom: none;
}

#progressList li.running {
  background:
    linear-gradient(135deg, rgba(102,126,234,0.07), rgba(118,75,162,0.04));
  font-weight: 700;
  color: var(--brand-from);
}

#progressList li.done {
  color: #276749;
}

#progressList li::before {
  position: absolute;
  left: 14px;
  font-size: 1.0rem;
}

/* ドットアニメーション（running） */
#progressList li.running::before {
  content: "⏳";
  animation: spinPulse 1.4s ease-in-out infinite;
}

#progressList li.done::before {
  content: "✅";
}

@keyframes spinPulse {
  0%, 100% { opacity: 0.6; transform: scale(0.9);  }
  50%       { opacity: 1.0; transform: scale(1.05); }
}

/* ============================================
   Agent Flow
   ============================================ */
.agent-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.flow-item {
  flex: 1;
  min-width: 110px;
  background:
    linear-gradient(135deg, rgba(102,126,234,0.06), rgba(118,75,162,0.04));
  border: 1px solid rgba(102,126,234,0.14);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  transition: background var(--transition-fast);
}

.flow-item:hover {
  background:
    linear-gradient(135deg, rgba(102,126,234,0.12), rgba(118,75,162,0.08));
}

/* ============================================
   Summary
   ============================================ */
.summary-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.copy-btn {
  flex-shrink: 0;
  border: 1px solid var(--border-brand);
  background: #fff;
  color: var(--brand-from);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.copy-btn:hover {
  background: linear-gradient(135deg, var(--brand-from), var(--brand-to));
  color: #fff;
  transform: translateY(-1px);
}

.copy-btn.copied {
  background: #10b981;
  border-color: #10b981;
  color: #fff;
}

#summaryContent {
  background:
    linear-gradient(145deg, #f8faff 0%, #f5f7fb 100%);
  border-radius: var(--radius-md);
  padding: 20px;
  line-height: 2.0;
  color: var(--text-primary);
  font-size: 0.97rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  border: 1px solid var(--border-subtle);
  box-shadow: inset 0 1px 4px rgba(0,0,0,0.03);
}

.summary-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ============================================
   キャッシュバッジ
   ============================================ */
.cache-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background:
    linear-gradient(135deg, #ebf4ff, #e8f0ff);
  color: #2563eb;
  font-size: 0.70rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid #bfdbfe;
  letter-spacing: 0.03em;
  vertical-align: middle;
}

/* ============================================
   実行履歴
   ============================================ */
.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast);
}

.history-item:hover {
  background: linear-gradient(135deg, rgba(102,126,234,0.08), rgba(118,75,162,0.05));
  border-color: rgba(102,126,234,0.25);
  transform: translateX(3px);
}

.history-kw {
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.history-cat {
  font-size: 0.76rem;
  color: var(--brand-from);
  background: rgba(102,126,234,0.1);
  padding: 2px 9px;
  border-radius: 999px;
  font-weight: 700;
}

.history-date {
  margin-left: auto;
  font-size: 0.76rem;
  color: var(--text-faint);
}

/* ============================================
   News Toolbar
   ============================================ */
.news-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.news-count {
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.93rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.news-count #newsCount {
  color: var(--brand-from);
  font-size: 1.15rem;
  font-weight: 800;
}

.news-source {
  font-size: 0.76rem;
  color: var(--text-faint);
  letter-spacing: 0.01em;
}

/* ============================================
   News List
   ============================================ */
.news-list {
  display: grid;
  gap: 12px;
}

.news-item {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  background: #fff;
  overflow: hidden;
  position: relative;
  transition:
    transform   var(--transition-normal),
    box-shadow  var(--transition-normal),
    border-color var(--transition-normal),
    background-color var(--transition-normal);
}

.news-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--brand-from), var(--brand-to));
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: 999px 0 0 999px;
}

.news-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(102,126,234,0.3);
}

.news-item:hover::before {
  opacity: 1;
}

.news-item h3 {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 8px;
  overflow-wrap: anywhere;
}

.news-item h3 a {
  color: #1d4ed8;
  transition: color var(--transition-fast);
}

[data-theme="dark"] .news-item h3 a {
  color: #93c5fd;
}

.news-item h3 a:hover {
  color: var(--brand-from);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================================
   News Meta
   ============================================ */
.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.news-tag {
  display: inline-flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.07));
  color: #5a4fcf;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
  border: 1px solid rgba(102,126,234,0.15);
  letter-spacing: 0.02em;
}

/* ============================================
   重要度装飾
   ============================================ */
.news-item.high-priority {
  border-color: rgba(239,68,68,0.3);
  background:
    linear-gradient(to bottom right, rgba(254,242,242,0.6), #fff);
}

.news-item.high-priority::before {
  background: linear-gradient(180deg, #f87171, #ef4444);
}

.news-item.medium-priority {
  border-color: rgba(245,158,11,0.35);
  background:
    linear-gradient(to bottom right, rgba(255,251,235,0.5), #fff);
}

.news-item.medium-priority::before {
  background: linear-gradient(180deg, #fbbf24, #f59e0b);
}

.news-item.low-priority {
  border-color: rgba(52,211,153,0.3);
  background:
    linear-gradient(to bottom right, rgba(240,253,250,0.5), #fff);
}

.news-item.low-priority::before {
  background: linear-gradient(180deg, #34d399, #10b981);
}

/* ============================================
   News Summary
   ============================================ */
.news-summary {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.78;
  overflow-wrap: anywhere;
}

/* ============================================
   Actions
   ============================================ */
#actionsList {
  padding-left: 0;
  list-style: none;
  counter-reset: actions-counter;
}

#actionsList li {
  counter-increment: actions-counter;
  margin-bottom: 12px;
  line-height: 1.75;
  overflow-wrap: anywhere;
  padding: 14px 16px 14px 52px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.95rem;
  position: relative;
  transition:
    background   var(--transition-fast),
    border-color var(--transition-fast),
    transform    var(--transition-fast);
}

#actionsList li::before {
  counter-content: counter(actions-counter);
  content: counter(actions-counter);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--brand-from), var(--brand-to));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
  /* flex代替 */
  text-align: center;
  padding-top: 5px;
  box-sizing: border-box;
}

#actionsList li:hover {
  background:
    linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.03));
  border-color: rgba(102,126,234,0.2);
  transform: translateX(3px);
}

#actionsList li:last-child {
  margin-bottom: 0;
}

/* ============================================
   Agent Info
   ============================================ */
.agent-info {
  background:
    linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.agent-card {
  background:
    linear-gradient(145deg, #f8faff 0%, #f2f5fd 100%);
  border: 1px solid rgba(102,126,234,0.12);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition:
    box-shadow var(--transition-normal),
    transform  var(--transition-normal),
    border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.agent-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background:
    radial-gradient(circle, rgba(102,126,234,0.08), transparent 70%);
  border-radius: 0 var(--radius-lg) 0 100%;
}

.agent-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(102,126,234,0.25);
}

.agent-card h3 {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.agent-card p {
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
footer {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-faint);
  font-size: 0.84rem;
  border-top: 1px solid var(--border-subtle);
}

.footer-note {
  margin-top: 6px;
  font-size: 0.76rem;
  color: #d1d5db;
  letter-spacing: 0.03em;
}

/* ============================================
   Loading Animation
   ============================================ */
.loading-pulse {
  animation: pulseGlow 1.5s infinite ease-in-out;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 1.0;  }
}

/* ============================================
   スクロールバー
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-thumb {
  background:
    linear-gradient(180deg, var(--brand-from), var(--brand-to));
  border-radius: 999px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

/* ============================================
   自己改善ステータス
   ============================================ */
.learning-section {
  background:
    linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
}

.learning-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.learning-stat {
  flex: 1;
  min-width: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 12px;
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(102,126,234,0.06), rgba(118,75,162,0.04));
  border: 1px solid rgba(102,126,234,0.14);
}

.learning-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-from);
  line-height: 1.2;
}

.learning-stat-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.learning-digest {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border-left: 3px solid var(--brand-from);
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ============================================
   分析フィードバックバー
   ============================================ */
.feedback-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.feedback-label {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.feedback-btn {
  border: 1px solid var(--border-brand);
  background: #fff;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.feedback-btn:hover {
  background: linear-gradient(135deg, var(--brand-from), var(--brand-to));
  color: #fff;
  transform: translateY(-1px);
}

.feedback-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.feedback-thanks {
  font-size: 0.82rem;
  font-weight: 700;
  color: #10b981;
}

/* ============================================
   採用アクションチェック
   ============================================ */
.actions-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding-left: 2px;
}

#actionsList li.action-item {
  padding-left: 16px;
}

#actionsList li.action-item::before {
  content: none;
  counter-increment: none;
}

.action-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.action-check {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--brand-from);
  cursor: pointer;
}

.action-text {
  flex: 1;
  line-height: 1.7;
}

.adopt-btn {
  margin-top: 8px;
  border: 1px solid var(--border-brand);
  background: #fff;
  color: var(--brand-from);
  font-size: 0.86rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.adopt-btn:hover {
  background: linear-gradient(135deg, var(--brand-from), var(--brand-to));
  color: #fff;
  transform: translateY(-1px);
}

.adopt-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

[data-theme="dark"] .adopt-btn,
[data-theme="dark"] .feedback-btn {
  background: #1b1e28;
}

/* ============================================
   タブレット（〜768px）
   ============================================ */
@media (max-width: 768px) {
  .hero {
    padding: 50px 20px 68px;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .container {
    margin-top: -30px;
  }

  .control-panel,
  .progress,
  .summary,
  .news-section,
  .actions,
  .agent-info,
  .history-section,
  .learning-section {
    padding: 22px;
    border-radius: var(--radius-lg);
  }

  .control-row {
    gap: 10px;
  }

  .control-row label {
    min-width: 100%;
  }

  .news-meta {
    align-items: flex-start;
  }
}

/* ============================================
   スマホ（〜600px）
   ============================================ */
@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .hero {
    padding: 42px 16px 58px;
  }

  .hero h1 {
    font-size: 1.5rem;
    line-height: 1.4;
  }

  .subtitle {
    font-size: 0.93rem;
    line-height: 1.75;
  }

  .theme-toggle {
    top: 12px;
    right: 12px;
    width: 38px;
    height: 38px;
  }

  .container {
    margin: -26px auto 40px;
    padding: 0 12px;
  }

  .control-panel,
  .progress,
  .summary,
  .news-section,
  .actions,
  .agent-info,
  .history-section,
  .learning-section {
    padding: 18px;
    border-radius: var(--radius-lg);
  }

  .control-row {
    margin-bottom: 14px;
  }

  .control-row input,
  .control-row select {
    min-width: 100%;
    font-size: 16px; /* iOS ズーム防止 */
  }

  .btn-primary {
    font-size: 0.98rem;
    padding: 14px 16px;
  }

  .section-header h2,
  .summary h2,
  .news-section h2,
  .actions h2,
  .progress h2,
  .agent-info h2,
  .history-section h2 {
    font-size: 1.0rem;
  }

  .news-item {
    padding: 15px 16px;
    border-radius: var(--radius-md);
  }

  .news-item h3 {
    font-size: 0.97rem;
  }

  .news-summary {
    font-size: 0.90rem;
  }

  #progressList li {
    padding: 12px 10px 12px 40px;
    font-size: 0.90rem;
  }

  #actionsList li {
    padding: 12px 14px 12px 46px;
    font-size: 0.90rem;
  }

  #actionsList li.action-item {
    padding-left: 14px;
  }

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

  .history-date {
    margin-left: 0;
  }

  .learning-stat {
    min-width: 100%;
  }

  footer {
    font-size: 0.78rem;
    line-height: 1.6;
  }
}

/* ============================================
   極小端末（〜380px）
   ============================================ */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 1.28rem;
  }

  .subtitle {
    font-size: 0.88rem;
  }

  .btn-primary {
    font-size: 0.93rem;
  }

  .news-item h3 {
    font-size: 0.92rem;
  }

  .badge {
    font-size: 0.72rem;
    padding: 4px 10px;
  }
}

/* ============================================
   アクセシビリティ：モーション低減設定への対応
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}