/* 实验室电子记录系统 — 多氟多科技蓝主题 */
:root {
  --primary: #005BAC;
  --primary-dark: #003d75;
  --primary-light: #e8f1fa;
  --accent: #5a4632;          /* 硼粉棕黑点缀 */
  --bg: #f2f5f9;
  --card: #ffffff;
  --text: #24313f;
  --text-muted: #7c8a9a;
  --border: #dde5ee;
  --danger: #c0392b;
  --green: #1e7a46;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0, 45, 90, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

/* ===== 顶栏：科技蓝渐变 ===== */
.topbar {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 45, 90, 0.25);
}
.topbar .brand { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.topbar .brand::before { content: "⚗ "; }
.topbar .spacer { flex: 1; }
.topbar a, .topbar button.link {
  color: #d6e6f7;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  padding: 4px 6px;
}
.topbar a:hover, .topbar button.link:hover { color: #fff; }

.container { max-width: 1040px; margin: 18px auto; padding: 0 12px; }

/* ===== 卡片 ===== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  border: 1px solid #e9eef5;
}
.card h3, .card h4 { color: var(--primary-dark); }

/* ===== 按钮体系 ===== */
.btn {
  display: inline-block;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 15px;
  min-height: 40px;
  cursor: pointer;
  margin: 2px 6px 2px 0;
  transition: background 0.15s, box-shadow 0.15s;
}
.btn:hover { background: #004e93; box-shadow: 0 2px 6px rgba(0, 91, 172, 0.3); }
.btn-outline { background: #fff; color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); box-shadow: none; }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #a53226; }
.btn-sm { padding: 4px 10px; font-size: 13px; min-height: 30px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-hero {
  display: block; width: 100%; padding: 14px; font-size: 17px; font-weight: 700;
  background: linear-gradient(120deg, var(--green), #155e36); border: none;
  border-radius: 10px; margin-bottom: 14px; letter-spacing: 1px;
}
.btn-hero:hover { background: linear-gradient(120deg, #1e7a46, #104a2a); }

/* ===== 表单 ===== */
.sf-field { margin-bottom: 14px; }
.sf-label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 5px; font-weight: 600; }
.sf-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 15px;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.sf-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0, 91, 172, 0.12); }
.sf-textarea { resize: vertical; }
.sf-check { font-size: 15px; display: flex; align-items: center; gap: 8px; min-height: 36px; }
.sf-check input { width: 18px; height: 18px; accent-color: var(--primary); }
.sf-table { width: 100%; border-collapse: collapse; margin-bottom: 8px; }
.sf-table th, .sf-table td { border: 1px solid var(--border); padding: 5px; font-size: 13px; }
.sf-table th { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
.sf-cell { padding: 5px 7px; font-size: 13px; }
.sf-table-op { width: 60px; text-align: center; }
.sf-preview { max-width: 100%; max-height: 240px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 6px; display: block; }
.sf-empty { color: var(--text-muted); font-size: 13px; padding: 6px 0; }
.sf-actions { margin-top: 6px; }
.sf-computed-cell { color: var(--primary); font-weight: 700; }

/* 分组折叠 */
details.group { margin-bottom: 12px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); overflow: hidden; }
details.group summary {
  cursor: pointer;
  padding: 12px 16px;
  font-weight: 700;
  color: var(--primary-dark);
  background: linear-gradient(90deg, var(--primary-light), #fff);
  border-left: 4px solid var(--primary);
  user-select: none;
}
details.group .group-body { padding: 14px 16px; }

/* 数据表 */
table.data-table { width: 100%; border-collapse: collapse; background: #fff; }
table.data-table th, table.data-table td {
  border-bottom: 1px solid #e8edf3;
  padding: 10px 8px;
  text-align: left;
  font-size: 14px;
}
table.data-table th { color: var(--primary-dark); font-weight: 700; background: var(--primary-light); }
table.data-table tbody tr:hover { background: #f6f9fc; }

/* 徽标 */
.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.badge.ai { background: #f6e3c5; color: #8a5a00; }
.badge.draft { background: #ececec; color: #666; }
.badge.submitted { background: #d6ead9; color: var(--green); }
.badge.todo { background: #f8d7da; color: #a02020; }
.badge.preset-badge { background: #efe7dd; color: var(--accent); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar input[type="date"] { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; }

/* 弹窗 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(10, 30, 55, 0.5);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal {
  background: #fff; border-radius: 14px; padding: 18px;
  width: 96vw; max-width: 980px; max-height: 92vh; overflow: auto;
  box-shadow: 0 10px 40px rgba(0, 30, 60, 0.3);
}
.modal h3 { margin-top: 0; color: var(--primary-dark); }

/* 近全屏弹窗（反应式编辑器等） */
.modal-xl {
  max-width: 1280px; width: 97vw; height: 94vh; max-height: 94vh;
  display: flex; flex-direction: column;
}
.kekule-box {
  flex: 1; min-height: 420px; width: 100%;
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}

/* 门类筛选 chips */
.chip-row { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 10px; }
.chip {
  padding: 5px 14px; border-radius: 999px; font-size: 13px; cursor: pointer;
  border: 1px solid var(--border); background: #f4f8fb; color: var(--primary-dark);
  user-select: none;
}
.chip:hover { background: var(--primary-light); }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 700; }
.toolbar .spacer { flex: 1; }
.sf-readonly { background: #eef3f8; color: #55677a; display: flex; align-items: center; min-height: 38px; }

/* 示意图编辑器 */
.diagram-wrap { display: flex; gap: 10px; }
.palette { width: 122px; flex-shrink: 0; display: flex; flex-direction: column; gap: 6px; }
.palette-item {
  border: 1px solid var(--border); border-radius: 8px; background: #f7fafd;
  padding: 9px 4px; text-align: center; font-size: 13px; cursor: grab; user-select: none;
  color: var(--primary-dark);
}
.palette-item:hover { background: var(--primary-light); }
.palette-item:active { cursor: grabbing; }
.diagram-canvas-box { border: 1px solid var(--border); border-radius: 8px; overflow: auto; }
.diagram-toolbar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }

/* 登录页 */
.login-page {
  min-height: 100vh;
  background: linear-gradient(150deg, var(--primary) 0%, var(--primary-dark) 60%, #002448 100%);
  display: flex; align-items: center; justify-content: center;
}
.login-card {
  width: 92vw; max-width: 380px;
  background: #fff; border-radius: 16px; padding: 30px 28px;
  box-shadow: 0 16px 50px rgba(0, 20, 45, 0.4);
}
.login-card h2 { text-align: center; color: var(--primary-dark); margin: 0 0 4px; font-size: 22px; }
.login-card .login-sub { text-align: center; color: var(--text-muted); font-size: 13px; margin-bottom: 20px; }
.login-card .btn { width: 100%; padding: 12px; font-size: 16px; font-weight: 700; }

/* 登录页角色选择 */
.login-roles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 18px; }
.login-role { border: 2px solid var(--border); border-radius: var(--radius); padding: 12px 8px; text-align: center; cursor: pointer; transition: all .15s; background: #fff; }
.login-role:hover { border-color: var(--primary-light); }
.login-role.active { border-color: var(--primary); background: var(--primary-bg, #eaf2fb); box-shadow: 0 0 0 3px rgba(0,91,172,.12); }
.login-role-icon { font-size: 22px; }
.login-role-name { font-weight: 700; margin-top: 4px; }
.login-role-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.msg { color: var(--danger); font-size: 13px; margin: 6px 0; white-space: pre-wrap; }
.msg.ok { color: var(--green); }
.muted { color: var(--text-muted); font-size: 13px; }

/* 后台布局：左侧边栏 */
.admin-layout { display: flex; gap: 16px; align-items: flex-start; }
.admin-sidebar {
  width: 200px; flex-shrink: 0;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 10px; position: sticky; top: 64px;
}
.admin-sidebar .side-title {
  font-size: 12px; color: var(--text-muted); font-weight: 700;
  padding: 8px 10px 4px; letter-spacing: 1px;
}
.side-item {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px; border-radius: 8px; cursor: pointer;
  font-size: 14px; color: var(--text); margin-bottom: 2px;
}
.side-item:hover { background: var(--primary-light); }
.side-item.active { background: var(--primary); color: #fff; font-weight: 700; }
.side-item .count { margin-left: auto; font-size: 12px; opacity: 0.75; }
.side-divider { border-top: 1px solid var(--border); margin: 8px 4px; }
.admin-main { flex: 1; min-width: 0; }

/* 照片 + 备注布局 */
.sf-photo { display: flex; gap: 10px; margin-bottom: 10px; align-items: flex-start; }
.sf-photo-img { width: 120px; max-height: 120px; object-fit: contain; border: 1px solid var(--border); border-radius: 8px; }
.sf-photo-side { flex: 1; display: flex; flex-direction: column; gap: 6px; }

/* 预设实验入口卡片 */
.preset-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 8px; }
.preset-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 12px; cursor: pointer; text-align: center;
  box-shadow: var(--shadow);
  transition: box-shadow 0.15s, transform 0.15s, border-color 0.15s;
  border-top: 4px solid var(--primary);
}
.preset-card:hover { box-shadow: 0 6px 18px rgba(0, 91, 172, 0.2); transform: translateY(-3px); border-top-color: var(--accent); }
.preset-card .preset-icon { font-size: 28px; margin-bottom: 6px; }
.preset-card .preset-name { font-size: 16px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.preset-card .preset-desc { font-size: 12px; color: var(--text-muted); }

pre.detail-json {
  background: #f7fafd; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px; font-size: 12px; overflow: auto; max-height: 50vh;
}
dl.detail { display: grid; grid-template-columns: 140px 1fr; row-gap: 8px; font-size: 14px; }
dl.detail dt { color: var(--text-muted); font-weight: 600; }
dl.detail dd { margin: 0; }
dl.detail img { max-width: 100%; max-height: 200px; display: block; border-radius: 6px; }

.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs button {
  border: 1px solid var(--border); background: #fff; border-radius: 8px;
  padding: 8px 16px; cursor: pointer; font-size: 14px; color: var(--text);
}
.tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }

/* 组分整数配比提示行 */
.ratio-line {
  margin-top: 6px; font-size: 14px; color: var(--accent); font-weight: 700;
  background: #f7f2ec; border: 1px dashed #cbb99e; border-radius: 8px; padding: 6px 10px;
  display: inline-block;
}

@media (max-width: 720px) {
  .container { padding: 0 8px; }
  .card { padding: 14px; }
  .diagram-wrap { flex-direction: column; }
  .palette { width: 100%; flex-direction: row; flex-wrap: wrap; }
  .palette-item { flex: 1 1 30%; }
  table.data-table { font-size: 12px; min-width: 620px; }
  .card:has(table.data-table) { overflow-x: auto; }
  dl.detail { grid-template-columns: 100px 1fr; }
  .preset-grid { grid-template-columns: repeat(2, 1fr); }
  .sf-photo { flex-direction: column; }
  .sf-photo-img { width: 100%; max-height: 180px; }
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; position: static; display: flex; flex-wrap: wrap; gap: 4px; }
  .admin-sidebar .side-title, .side-divider { display: none; }
  .side-item { padding: 8px 10px; }
  .btn { min-height: 44px; }
}