/* 病理标注工具 - 全局样式 */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f3f5f9;
  --surface: #ffffff;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --text: #1f2937;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ----- 登录页 ----- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #4f46e5 0%, #2563eb 50%, #0ea5e9 100%);
}
.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 40px 32px;
  width: 360px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}
.login-card h1 {
  text-align: center;
  margin-bottom: 8px;
  font-size: 22px;
}
.login-card .subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 13px;
}

/* ----- 通用组件 ----- */
.input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  outline: none;
  transition: border 0.15s;
  font-family: inherit;
}
.input:focus, select:focus, textarea:focus { border-color: var(--primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
}
.btn:hover { background: var(--primary-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f9fafb; }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #b91c1c; }
.btn.success { background: var(--success); }
.btn.warn { background: var(--warning); }
.btn.full { width: 100%; }

.label { display: block; font-size: 13px; color: var(--text-muted); margin: 12px 0 6px; }

.error-msg { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }

/* ----- 顶栏 ----- */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .brand {
  font-weight: 600;
  font-size: 16px;
  color: var(--primary);
}
.topbar .nav { display: flex; gap: 4px; align-items: center; }
.topbar .nav a {
  text-decoration: none;
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
}
.topbar .nav a:hover, .topbar .nav a.active { background: #eef2ff; color: var(--primary); }
.topbar .user-info { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: 13px; }
.topbar .badge {
  background: #eef2ff; color: var(--primary);
  padding: 2px 8px; border-radius: 10px; font-size: 11px;
}
.topbar .badge.admin { background: #fef3c7; color: #b45309; }

/* ----- 容器 ----- */
.container { max-width: 1280px; margin: 24px auto; padding: 0 24px; }

/* ----- 卡片 / 看板 ----- */
.card {
  background: var(--surface);
  border-radius: 10px;
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.card h3 { margin-bottom: 12px; font-size: 16px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.stat-card {
  background: #fff;
  border-radius: 10px;
  padding: 18px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}
.stat-card.green { border-left-color: var(--success); }
.stat-card.orange { border-left-color: var(--warning); }
.stat-card.red { border-left-color: var(--danger); }
.stat-card .label-text { color: var(--text-muted); font-size: 13px; }
.stat-card .value { font-size: 26px; font-weight: 600; margin-top: 4px; }

/* ----- 列表与表格 ----- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
table th, table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
table th { background: #f9fafb; font-weight: 600; color: var(--text-muted); font-size: 12px; text-transform: uppercase; }
table tr:hover td { background: #f9fafb; }

/* 图片网格 */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.image-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: all 0.15s;
}
.image-card:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
.image-card .thumb {
  width: 100%; height: 140px;
  background: #e5e7eb url('') center/cover no-repeat;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
}
.image-card .meta { padding: 10px 12px; }
.image-card .title { font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.image-card .sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; display: flex; justify-content: space-between; }
.tag {
  display: inline-block;
  padding: 1px 8px; border-radius: 10px; font-size: 11px;
  background: #eef2ff; color: var(--primary);
}
.tag.green { background: #dcfce7; color: #166534; }
.tag.orange { background: #fef3c7; color: #b45309; }
.tag.gray { background: #f3f4f6; color: #4b5563; }

/* ----- 标注页面 ----- */
.annotate-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
  padding: 16px;
  height: calc(100vh - 56px);
}
.canvas-wrap {
  background: #1f2937;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
#annoCanvas {
  background: #000;
  cursor: crosshair;
  max-width: 100%;
  max-height: 100%;
}
.toolbar {
  position: absolute;
  top: 12px; left: 12px;
  display: flex; gap: 6px;
  background: rgba(255,255,255,0.95);
  padding: 6px;
  border-radius: 6px;
  z-index: 10;
}
.toolbar button {
  padding: 5px 10px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}
.toolbar button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.side-panel {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  overflow-y: auto;
}
.side-panel h4 { font-size: 14px; margin-bottom: 8px; color: var(--text); }
.ann-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 8px;
  font-size: 13px;
}
.ann-item.benign { border-left: 3px solid var(--success); }
.ann-item.malignant { border-left: 3px solid var(--danger); }
.ann-item.suspicious { border-left: 3px solid var(--warning); }
.ann-item .row { display: flex; justify-content: space-between; align-items: center; margin-top: 4px; }
.ann-item .meta { font-size: 11px; color: var(--text-muted); }

.empty { color: var(--text-muted); text-align: center; padding: 24px 0; font-size: 13px; }

.flex-row { display: flex; gap: 8px; align-items: center; }
.flex-row.between { justify-content: space-between; }
.mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; }
.mb-8 { margin-bottom: 8px; } .mb-12 { margin-bottom: 12px; }