* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand: #464775;
  --brand-light: #6264a7;
  --accent: #5b5fc7;
  --bg: #f0f2f8;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --chat-h: calc(100vh - 7.5rem);
  --shadow: 0 1px 3px rgba(0,0,0,0.04);
  --input-bg: #fff;
  --hover: #eef2ff;
}

[data-theme="dark"] {
  --bg: #0f1117;
  --card: #1a1d27;
  --border: #2d3348;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --input-bg: #12151f;
  --hover: #252a3a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.logo { font-weight: 700; font-size: 1.25rem; color: var(--brand); letter-spacing: -0.02em; }
[data-theme="dark"] .logo { color: #a5b4fc; }

.nav-btn {
  background: none; border: none; padding: 0.5rem 1rem;
  cursor: pointer; color: var(--muted); font-size: 0.9rem;
  border-radius: 0.5rem; transition: all 0.15s;
}
.nav-btn.active, .nav-btn:hover { color: var(--accent); background: var(--hover); }
.icon-btn { padding: 0.5rem 0.75rem; font-size: 1rem; }

.container { max-width: 1320px; margin: 0 auto; padding: 1.25rem 1.5rem 2rem; }
.view.hidden { display: none; }

.toolbar { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 0.75rem; gap: 1rem; flex-wrap: wrap; }
.toolbar h1 { font-size: 1.5rem; color: var(--brand); }
[data-theme="dark"] .toolbar h1 { color: #c7d2fe; }
.toolbar-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.stats-line { font-size: 0.8rem; color: var(--muted); margin-top: 0.2rem; }

.hint { color: var(--muted); font-size: 0.85rem; margin-bottom: 1rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.55rem 1.1rem; border-radius: 0.5rem; border: none;
  cursor: pointer; font-size: 0.875rem; font-weight: 500;
  transition: all 0.15s; white-space: nowrap;
}
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #4a4eb5; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary { background: var(--brand); color: #fff; }
.btn-secondary:hover { background: #3a3b62; }
.btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.btn-danger:hover { background: #fecaca; }
.btn-ghost { background: var(--hover); color: var(--accent); border: 1px solid var(--border); }
.btn-ghost:hover { filter: brightness(0.95); }
.btn-ghost.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-icon { background: none; border: none; cursor: pointer; font-size: 0.9rem; opacity: 0.8; padding: 0.2rem; }
.btn-icon:hover { opacity: 1; }

.link-btn { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 0.875rem; padding: 0.25rem 0; }

.onboarding {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border: 1px solid #c7d2fe; border-radius: 0.75rem;
  padding: 1rem 1.25rem; margin-bottom: 1rem;
}
[data-theme="dark"] .onboarding { background: linear-gradient(135deg, #1e1b4b, #312e81); border-color: #4338ca; }
.onboarding.hidden { display: none; }

.dropzone {
  border: 2px dashed var(--border); border-radius: 0.75rem;
  padding: 1.25rem; text-align: center; color: var(--muted);
  font-size: 0.9rem; margin-bottom: 1rem; transition: all 0.2s;
}
.dropzone.dragover { border-color: var(--accent); background: var(--hover); color: var(--accent); }
.dropzone.hidden { display: none; }

.search-bar { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.search-bar input, .search-bar select {
  padding: 0.6rem 0.9rem; border: 1px solid var(--border);
  border-radius: 0.5rem; font-size: 0.875rem; background: var(--input-bg); color: var(--text);
  outline: none;
}
.search-bar input { flex: 1; }
.search-bar input:focus, .search-bar select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,95,199,0.15); }

.meetings-list { display: flex; flex-direction: column; gap: 0.75rem; }

.meeting-item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 0.75rem; padding: 1rem 1.25rem;
  cursor: pointer; transition: all 0.15s;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.meeting-item:hover { border-color: #a5b4fc; box-shadow: 0 4px 12px rgba(91,95,199,0.1); transform: translateY(-1px); }
.meeting-item-main { flex: 1; min-width: 0; }
.meeting-item h3 { font-size: 1rem; margin-bottom: 0.25rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meeting-item p { font-size: 0.8rem; color: var(--muted); }
.meeting-meta { display: flex; gap: 0.5rem; align-items: center; flex-shrink: 0; }
.meeting-delete {
  background: none; border: none; cursor: pointer; color: var(--muted);
  font-size: 1rem; padding: 0.25rem; opacity: 0; transition: opacity 0.15s;
}
.meeting-item:hover .meeting-delete { opacity: 1; }
.meeting-delete:hover { color: #dc2626; }

.badge {
  font-size: 0.7rem; font-weight: 600; padding: 0.25rem 0.65rem;
  border-radius: 999px; background: #dcfce7; color: #166534; white-space: nowrap;
}
.badge.processing { background: #dbeafe; color: #1e40af; }
.badge.error { background: #fee2e2; color: #991b1b; }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 0.875rem; padding: 1.25rem; box-shadow: var(--shadow);
}
.card-actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }

.detail-topbar { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.detail-topbar-title { flex: 1; font-size: 1.2rem; color: var(--brand); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
[data-theme="dark"] .detail-topbar-title { color: #c7d2fe; }

.detail-layout { display: grid; grid-template-columns: 1fr 380px; gap: 1.25rem; align-items: start; }
.detail-main { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }

.charts-panel { padding: 1rem; background: var(--card); border: 1px solid var(--border); border-radius: 0.875rem; }
.charts-panel.hidden { display: none; }
.charts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.chart-box { background: var(--bg); border: 1px solid var(--border); border-radius: 0.625rem; padding: 0.5rem; height: 180px; position: relative; }
.chart-box canvas { width: 100% !important; height: 100% !important; }

.tabs { display: flex; gap: 0.25rem; margin-bottom: 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0; }
.tab {
  background: none; border: none; padding: 0.5rem 1rem; cursor: pointer;
  color: var(--muted); font-size: 0.875rem; font-weight: 500;
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all 0.15s;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab:hover:not(.active) { color: var(--text); }
.tab-content.hidden { display: none; }

.transcript-search {
  width: 100%; padding: 0.55rem 0.85rem; margin-bottom: 0.75rem;
  border: 1px solid var(--border); border-radius: 0.5rem;
  font-size: 0.85rem; background: var(--input-bg); color: var(--text);
}
.transcript-box {
  max-height: 500px; overflow-y: auto; font-size: 0.8rem; line-height: 1.6;
  white-space: pre-wrap; word-break: break-word; color: var(--text);
  background: var(--bg); padding: 1rem; border-radius: 0.5rem; border: 1px solid var(--border);
}
.transcript-box mark { background: #fef08a; color: #000; border-radius: 2px; padding: 0 2px; }

.chat-panel {
  display: flex; flex-direction: column; position: sticky; top: 4.5rem;
  height: var(--chat-h); min-height: 480px; padding: 0; overflow: hidden;
}
.chat-header {
  padding: 0.875rem 1.25rem; border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, #464775 0%, #6264a7 100%);
  border-radius: 0.875rem 0.875rem 0 0;
  display: flex; align-items: center; justify-content: space-between;
}
.chat-header h3 { color: #fff; font-size: 0.95rem; font-weight: 600; }

.chat-messages { flex: 1; overflow-y: auto; padding: 1rem 1.25rem; min-height: 0; }
.chat-empty { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 2rem 1rem; }

.chat-bubble { margin-bottom: 0.875rem; max-width: 95%; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.chat-bubble.user { margin-left: auto; }
.chat-bubble .label { font-size: 0.65rem; font-weight: 600; margin-bottom: 0.2rem; text-transform: uppercase; letter-spacing: 0.04em; }
.chat-bubble.user .label { color: var(--accent); text-align: right; }
.chat-bubble.assistant .label { color: var(--muted); }
.chat-bubble .content { font-size: 0.875rem; padding: 0.7rem 0.9rem; border-radius: 0.875rem; white-space: pre-wrap; line-height: 1.5; }
.chat-bubble.user .content { background: var(--hover); border: 1px solid var(--border); border-bottom-right-radius: 0.25rem; }
.chat-bubble.assistant .content { background: var(--bg); border: 1px solid var(--border); border-bottom-left-radius: 0.25rem; }
.chat-bubble.typing .content { color: var(--muted); }

.suggestions { display: flex; flex-wrap: wrap; gap: 0.35rem; padding: 0 1.25rem 0.75rem; border-top: 1px solid var(--border); background: var(--bg); }
.suggestions button {
  font-size: 0.7rem; padding: 0.3rem 0.65rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--card); color: var(--muted); cursor: pointer; transition: all 0.15s;
}
.suggestions button:hover { background: var(--hover); border-color: #c7d2fe; color: var(--accent); }

.chat-form { display: flex; gap: 0.5rem; padding: 0.875rem 1.25rem; border-top: 1px solid var(--border); background: var(--card); border-radius: 0 0 0.875rem 0.875rem; }
.chat-form input {
  flex: 1; padding: 0.65rem 1rem; border: 1px solid var(--border);
  border-radius: 0.5rem; font-size: 0.875rem; outline: none;
  background: var(--input-bg); color: var(--text); transition: border-color 0.15s;
}
.chat-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,95,199,0.15); }

.summary-section { margin-bottom: 1.25rem; }
.summary-section h4 { font-size: 0.7rem; text-transform: uppercase; color: var(--muted); letter-spacing: 0.06em; margin-bottom: 0.5rem; font-weight: 600; }
.summary-section ul { list-style: none; font-size: 0.9rem; }
.summary-section li { margin-bottom: 0.4rem; line-height: 1.5; }
.summary-section li::before { content: "→ "; color: var(--accent); font-weight: 600; }

.exec-summary {
  background: linear-gradient(135deg, var(--hover), var(--bg));
  padding: 1rem 1.25rem; border-radius: 0.625rem; font-size: 0.95rem;
  line-height: 1.7; border-left: 4px solid var(--accent); margin-bottom: 1.25rem;
}

.highlight-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 0.625rem;
  padding: 0.875rem 1rem; margin-bottom: 0.5rem;
}
.highlight-card strong { display: block; margin-bottom: 0.25rem; color: var(--text); }
.highlight-card span { font-size: 0.85rem; color: var(--muted); }

.topic-card { background: var(--bg); border: 1px solid var(--border); border-radius: 0.625rem; padding: 1rem; margin-bottom: 0.75rem; }
.topic-card h5 { font-size: 0.9rem; margin-bottom: 0.35rem; color: var(--accent); }
.topic-card p { font-size: 0.85rem; color: var(--muted); margin-bottom: 0.5rem; }
.topic-card ul { list-style: none; font-size: 0.85rem; }
.topic-card li { margin-bottom: 0.25rem; }
.topic-card li::before { content: "• "; color: var(--accent); }

.action-item { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.5rem; }
.action-item input[type=checkbox] { margin-top: 0.2rem; accent-color: var(--accent); }
.action-item.done span { text-decoration: line-through; opacity: 0.6; }
.action-deadline { font-size: 0.75rem; color: #d97706; background: #fef3c7; padding: 0.1rem 0.4rem; border-radius: 4px; margin-left: 0.25rem; }

.explanation { background: var(--hover); padding: 1rem; border-radius: 0.625rem; font-size: 0.9rem; line-height: 1.6; border-left: 3px solid var(--accent); }

.error-box { background: #fee2e2; color: #991b1b; padding: 1rem; border-radius: 0.5rem; border: 1px solid #fecaca; }
.loading-box { display: flex; align-items: center; gap: 0.75rem; color: var(--muted); padding: 1rem 0; }
.spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.settings-card { max-width: 520px; }
.settings-sub { font-size: 0.95rem; margin-bottom: 0.5rem; }
.settings-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
.divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.input-row { display: flex; gap: 0.5rem; }
.input-row input { flex: 1; }

.field { display: block; margin-bottom: 1rem; }
.field span { display: block; font-weight: 500; margin-bottom: 0.35rem; font-size: 0.9rem; }
.field input, .field select {
  width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border);
  border-radius: 0.5rem; outline: none; background: var(--input-bg); color: var(--text);
}
.field input:focus, .field select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,95,199,0.12); }
.field small { display: block; margin-top: 0.35rem; color: var(--muted); font-size: 0.8rem; }
.field small a { color: var(--accent); }

.status-msg { margin-top: 0.75rem; font-size: 0.85rem; color: #166534; }
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: 0.5; }

.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  background: var(--card); border: 1px solid var(--border); border-radius: 0.5rem;
  padding: 0.75rem 1.25rem; font-size: 0.875rem; box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  animation: slideIn 0.25s ease; max-width: 320px;
}
.toast.success { border-left: 3px solid #059669; }
.toast.error { border-left: 3px solid #dc2626; }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

@media (max-width: 960px) {
  .detail-layout { grid-template-columns: 1fr; }
  .chat-panel { position: static; height: auto; min-height: 420px; max-height: 65vh; }
  .charts-grid { grid-template-columns: repeat(2, 1fr); }
  .card-actions { width: 100%; justify-content: flex-start; }
}
@media (max-width: 600px) {
  .charts-grid { grid-template-columns: 1fr; }
  .detail-topbar-title { font-size: 1rem; }
  .toolbar { flex-direction: column; }
}