/* VIOFO Content Intelligence — Global Styles */
:root {
  --primary: #1a56db;
  --primary-light: #e8eefb;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--gray-50); color: var(--gray-900); }

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

/* Sidebar */
.sidebar {
  width: 220px; background: var(--gray-900); color: #fff;
  padding: 20px 0; flex-shrink: 0; position: fixed; height: 100vh; overflow-y: auto;
}
.sidebar h1 { font-size: 16px; padding: 0 20px 20px; border-bottom: 1px solid var(--gray-700); }
.sidebar nav { padding: 10px 0; }
.sidebar a {
  display: block; padding: 10px 20px; color: var(--gray-300);
  text-decoration: none; font-size: 14px; transition: all 0.15s;
}
.sidebar a:hover { background: var(--gray-700); color: #fff; }
.sidebar a.active { background: var(--primary); color: #fff; }

/* Main content */
.main { margin-left: 220px; flex: 1; padding: 24px; max-width: 1800px; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.page-header h2 { font-size: 22px; }

/* Cards */
.card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px; }
.card-header { font-size: 14px; font-weight: 600; color: var(--gray-500); text-transform: uppercase; margin-bottom: 12px; }

/* Status cards grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; text-align: center; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; }
.stat-card .stat-label { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.stat-card.ok { border-left: 4px solid var(--success); }
.stat-card.failed { border-left: 4px solid var(--danger); }

/* Tabs */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--gray-200); margin-bottom: 16px; }
.tab {
  padding: 10px 20px; cursor: pointer; font-size: 14px; font-weight: 500;
  color: var(--gray-500); border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.tab:hover { color: var(--gray-700); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Markdown content */
.markdown-body { line-height: 1.7; font-size: 14px; }
.markdown-body h1 { font-size: 22px; margin: 20px 0 12px; }
.markdown-body h2 { font-size: 18px; margin: 24px 0 12px; border-bottom: 1px solid var(--gray-200); padding-bottom: 6px; }
.markdown-body h3 { font-size: 15px; margin: 16px 0 8px; }
.markdown-body p { margin: 8px 0; }
.markdown-body ul, .markdown-body ol { margin: 8px 0 8px 24px; }
.markdown-body li { margin: 4px 0; }
.markdown-body blockquote { border-left: 3px solid var(--primary); padding: 8px 16px; margin: 12px 0; background: var(--primary-light); border-radius: 0 var(--radius) var(--radius) 0; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
.markdown-body th, .markdown-body td { padding: 8px 12px; border: 1px solid var(--gray-200); text-align: left; }
.markdown-body th { background: var(--gray-100); font-weight: 600; }
.markdown-body code { background: var(--gray-100); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.markdown-body pre { background: var(--gray-900); color: #e5e7eb; padding: 16px; border-radius: var(--radius); overflow-x: auto; margin: 12px 0; }
.markdown-body pre code { background: none; padding: 0; color: inherit; }
.markdown-body a { color: var(--primary); }
.markdown-body hr { border: none; border-top: 1px solid var(--gray-200); margin: 20px 0; }

/* Topic list */
.topic-item { border: 1px solid var(--gray-200); border-radius: var(--radius); margin-bottom: 12px; }
.topic-header { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; cursor: pointer; }
.topic-header:hover { background: var(--gray-50); }
.topic-rank { font-weight: 700; color: var(--primary); min-width: 30px; }
.topic-title { flex: 1; font-weight: 500; margin: 0 12px; }
.topic-badge { font-size: 12px; padding: 2px 8px; border-radius: 12px; }
.topic-badge.hot { background: #fef2f2; color: var(--danger); }
.topic-badge.tutorial { background: #f0fdf4; color: var(--success); }
.topic-badge.product { background: #eff6ff; color: var(--primary); }
.topic-score { font-weight: 700; color: var(--gray-700); min-width: 45px; text-align: right; }
.topic-detail { padding: 0 16px 16px; border-top: 1px solid var(--gray-200); display: none; }
.topic-detail.open { display: block; padding-top: 16px; }

/* Review list */
.review-item { padding: 12px 0; border-bottom: 1px solid var(--gray-100); }
.review-stars { color: var(--warning); }
.review-meta { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.review-body { margin-top: 6px; font-size: 14px; line-height: 1.5; }

/* Chat / Agent */
.chat-container { display: flex; flex-direction: column; height: calc(100vh - 140px); }
.chat-messages { flex: 1; overflow-y: auto; padding: 16px 0; }
.chat-msg { margin-bottom: 16px; display: flex; gap: 10px; }
.chat-msg.user { justify-content: flex-end; }
.chat-msg .bubble { max-width: 80%; padding: 12px 16px; border-radius: 12px; font-size: 14px; line-height: 1.6; }
.chat-msg.user .bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.assistant .bubble { background: #fff; border: 1px solid var(--gray-200); border-bottom-left-radius: 4px; }
.chat-tools { font-size: 12px; color: var(--gray-500); margin-top: 6px; }
.chat-tools code { background: var(--gray-100); padding: 1px 5px; border-radius: 3px; }
.chat-input-area { display: flex; gap: 8px; padding-top: 12px; border-top: 1px solid var(--gray-200); }
.chat-input { flex: 1; padding: 10px 14px; border: 1px solid var(--gray-300); border-radius: var(--radius); font-size: 14px; resize: none; }
.chat-input:focus { outline: none; border-color: var(--primary); }
.chat-send { padding: 10px 20px; background: var(--primary); color: #fff; border: none; border-radius: var(--radius); cursor: pointer; font-size: 14px; }
.chat-send:hover { background: #1e40af; }
.chat-send:disabled { background: var(--gray-300); cursor: not-allowed; }

/* Date selector */
.date-select { padding: 8px 12px; border: 1px solid var(--gray-300); border-radius: var(--radius); font-size: 14px; }

/* Loading */
.loading { text-align: center; padding: 40px; color: var(--gray-500); }

/* Filters */
.filters { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.filters select, .filters input { padding: 6px 10px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 13px; }

/* Overview status cards (per-platform采集状态) */
.status-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.status-card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px; text-align: center; position: relative;
}
.status-card .card-name { font-size: 13px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.3px; }
.status-card .card-count { font-size: 28px; font-weight: 700; color: var(--gray-900); margin: 6px 0 8px; }
.status-card .badge {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 10px; letter-spacing: 0.3px;
}
.status-card .badge-ok { background: #ecfdf5; color: var(--success); }
.status-card .badge-failed { background: #fef2f2; color: var(--danger); }

/* Report section spacing */
.report-section { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }

/* Date picker (overview header) */
.date-picker { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--gray-700); }
.date-picker select { padding: 6px 10px; border: 1px solid var(--gray-300); border-radius: var(--radius); font-size: 14px; }

/* Placeholder / error inline messages */
.placeholder { color: var(--gray-500); font-size: 14px; padding: 16px 0; }
.error { color: var(--danger); font-size: 14px; padding: 16px 0; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .status-cards { grid-template-columns: repeat(2, 1fr); }
}