/* 健康监测 - 移动优先样式 */
/* 配色：深蓝主色 + 绿达标/红超标 + 白卡片 */

:root {
  --bg: #f0f4f8;
  --card-bg: #ffffff;
  --text: #1a202c;
  --text-secondary: #718096;
  --primary: #3182ce;
  --success: #38a169;
  --danger: #e53e3e;
  --warning: #dd6b20;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 80px; /* for FAB */
  line-height: 1.6;
}

/* ── Nav ── */
.nav {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.nav-brand { font-weight: 700; font-size: 16px; color: var(--primary); }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  transition: all 0.15s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
  background: rgba(49,130,206,0.08);
}

/* ── Container ── */
.container { max-width: 768px; margin: 0 auto; padding: 16px; }

/* ── Status Cards ── */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}
.card-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 2px; }
.card-value { font-size: 24px; font-weight: 700; }
.card-unit { font-size: 13px; color: var(--text-secondary); font-weight: 400; }
.card-status { font-size: 12px; margin-top: 2px; }
.card-status.good { color: var(--success); }
.card-status.bad { color: var(--danger); }
.card-status.warn { color: var(--warning); }
.card.good { border-left-color: var(--success); }
.card.bad { border-left-color: var(--danger); }
.card.warn { border-left-color: var(--warning); }

/* ── Charts ── */
.chart-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.chart-title { font-size: 14px; font-weight: 600; margin-bottom: 10px; color: var(--text); }
.chart-main { min-height: 280px; }
.chart-normal { min-height: 220px; }
.chart-wrap { position: relative; }
.chart-empty { text-align: center; color: var(--text-secondary); padding: 40px 0; font-size: 14px; }

/* ── Time Range ── */
.time-range { display: flex; gap: 4px; margin-bottom: 20px; flex-wrap: wrap; }
.time-range button {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.time-range button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Lab Table ── */
.lab-table-section { margin-bottom: 20px; }
.lab-table-section h3 { font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.lab-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.lab-table th, .lab-table td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); }
.lab-table th { color: var(--text-secondary); font-weight: 500; font-size: 12px; }
.lab-table tbody tr:nth-child(even) { background: rgba(49,130,206,0.03); }
.lab-table tbody tr:hover { background: rgba(49,130,206,0.06); }
.lab-table .tag {
  display: inline-block; padding: 2px 6px; border-radius: 4px; font-size: 11px;
}
.lab-table .tag-home { background: #bee3f8; color: #2b6cb0; }
.lab-table .tag-hospital { background: #fed7d7; color: #c53030; }

/* ── FAB (浮动按钮) ── */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 26px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(49,130,206,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  text-decoration: none;
  transition: transform 0.15s;
}
.fab:active { transform: scale(0.92); }

/* ── Form Styles ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font);
  background: var(--card-bg);
  color: var(--text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(49,130,206,0.1);
}
.form-section-title {
  font-size: 15px; font-weight: 600; margin: 20px 0 12px;
  padding-bottom: 6px; border-bottom: 2px solid var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: 8px; font-size: 14px;
  font-weight: 500; cursor: pointer; border: none; transition: all 0.15s;
  font-family: var(--font);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #2b6cb0; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { width: 100%; }

/* ── Report ── */
.report-preview {
  background: var(--card-bg); border-radius: var(--radius); padding: 20px;
  box-shadow: var(--shadow); margin-bottom: 20px;
}
.report-header { text-align: center; margin-bottom: 16px; }
.report-header h2 { font-size: 18px; margin-bottom: 4px; }
.report-header p { color: var(--text-secondary); font-size: 13px; }

/* ── Diary ── */
.diary-list { list-style: none; }
.diary-item {
  background: var(--card-bg); border-radius: var(--radius); padding: 14px;
  margin-bottom: 10px; box-shadow: var(--shadow); cursor: pointer;
}
.diary-item h4 { font-size: 15px; margin-bottom: 4px; }
.diary-item p { font-size: 13px; color: var(--text-secondary); }

/* ── Login ── */
.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}
.login-box {
  background: var(--card-bg); border-radius: var(--radius); padding: 30px;
  box-shadow: var(--shadow); width: 100%; max-width: 320px; text-align: center;
}
.login-box h1 { font-size: 20px; margin-bottom: 20px; }
.login-box input {
  width: 100%; padding: 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 16px; text-align: center;
  margin-bottom: 12px;
}

/* ── Toast ── */
.toast {
  position: fixed; top: 70px; left: 50%; transform: translateX(-50%);
  background: #1a202c; color: #fff; padding: 10px 20px;
  border-radius: 8px; font-size: 14px; z-index: 300;
  opacity: 0; transition: opacity 0.3s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* ── Desktop ── */
@media (min-width: 600px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}

/* ── 骨架屏 ── */
@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: 200px 0; }
}
.skeleton {
  background: linear-gradient(90deg, #e2e8f0 25%, #edf2f7 50%, #e2e8f0 75%);
  background-size: 400px 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 6px;
}
.skeleton-card { height: 72px; }
.skeleton-chart { height: 260px; }

/* ── 趋势箭头 ── */
.trend { font-size: 12px; margin-left: 4px; font-weight: 500; }
.trend.up { color: var(--danger); }
.trend.down { color: var(--success); }
.trend.neutral { color: var(--text-secondary); }

/* ── 暗色模式 ── */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --card-bg: #1a1f26;
    --text: #e7e9ea;
    --text-secondary: #71767b;
    --border: #2f3336;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
  }
  body { background: var(--bg); }
  .nav { background: rgba(26,31,38,0.85); backdrop-filter: blur(12px); border-bottom-color: var(--border); }
  .card { background: linear-gradient(135deg, var(--card-bg), rgba(26,31,38,0.7)); }
  .chart-section { background: var(--card-bg); }
  .form-group input, .form-group select, .form-group textarea {
    background: #16181c; border-color: var(--border); color: var(--text);
  }
  .btn-secondary { background: #2f3336; color: var(--text); }
  .time-range button { background: #1a1f26; border-color: var(--border); color: var(--text-secondary); }
  .time-range button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
  .lab-table th { color: var(--text-secondary); }
  .lab-table tr:nth-child(even) { background: rgba(255,255,255,0.02); }
  .lab-table .tag-home { background: rgba(56,161,105,0.15); color: #68d391; }
  .lab-table .tag-hospital { background: rgba(229,62,62,0.15); color: #fc8181; }
  .login-box { background: var(--card-bg); }
  .login-box input { background: #16181c; border-color: var(--border); color: var(--text); }
  .toast { background: #e7e9ea; color: #0f1419; }
  .diary-item { background: var(--card-bg); }
  .report-preview { background: var(--card-bg); }
  .skeleton { background: linear-gradient(90deg, #2f3336 25%, #3a3f44 50%, #2f3336 75%); background-size: 400px 100%; }

  /* 图表暗色适配 */
  .chart-section canvas { filter: brightness(0.9) contrast(1.1); }
}

/* ── Print ── */
@media print {
  .nav, .fab, .time-range, .form-actions { display: none !important; }
  body { padding-bottom: 0; background: #fff; }
  .container { max-width: 100%; padding: 0; }
  .chart-section, .report-preview { box-shadow: none; break-inside: avoid; }
}