:root {
  --bg: #f3f1ee;
  --surface: #fffcf8;
  --text: #1c1917;
  --text-muted: #78716c;
  --border: #e7e0d8;
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --primary-soft: #f3e8ff;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --e2: #db2777;
  --t: #0f766e;
  --cpa: #d97706;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.04), 0 12px 32px rgba(28, 25, 23, 0.06);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12110f;
    --surface: #1c1a17;
    --text: #f5f0ea;
    --text-muted: #a8a29e;
    --border: #322e29;
    --primary: #c4b5fd;
    --primary-hover: #ddd6fe;
    --primary-soft: #2a2438;
    --danger: #fca5a5;
    --danger-soft: #3a2326;
    --e2: #fb7185;
    --t: #5eead4;
    --cpa: #fbbf24;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 16px 40px rgba(0, 0, 0, 0.28);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

/* ---- 顶栏 ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 {
  font-size: 17px;
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.role-pill {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--text);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.muted { color: var(--text-muted); font-size: 13px; }

/* ---- 布局 ---- */
.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 22px 20px 48px;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px 18px 12px;
  box-shadow: var(--shadow);
  margin-bottom: 22px;
}
.chart-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.chart-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.chart-now {
  margin: 4px 0 0;
  font-size: 28px;
  font-weight: 650;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.chart-now span { font-size: 14px; font-weight: 500; color: var(--text-muted); margin-left: 6px; }
.chart-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chart-stage { position: relative; margin-top: 8px; }
#chart { width: 100%; height: auto; display: block; }
.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  color: var(--text-muted);
  text-align: center;
  padding: 24px;
}
.chart-tip {
  position: absolute;
  pointer-events: none;
  background: var(--text);
  color: var(--bg);
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 8px;
  white-space: nowrap;
  transform: translate(-50%, -120%);
}
.chart-note {
  margin: 4px 0 6px;
  font-size: 12px;
  color: var(--text-muted);
}
.weight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.weight input {
  width: 64px;
  padding: 6px 8px;
}
.grid-line { stroke: var(--border); stroke-width: 1; }
.axis-label { fill: var(--text-muted); font-size: 11px; }
.series-e2 { stroke: var(--e2); }
.series-t { stroke: var(--t); }
.series-cpa { stroke: var(--cpa); }
.lab-dot { stroke: var(--surface); stroke-width: 2; }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--bg); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--danger); border-color: transparent; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
}
.btn-icon:hover { color: var(--text); }

/* ---- 工具栏 ---- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.filter {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tabs {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  gap: 2px;
}
.tab {
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}
.tab.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.day-label {
  margin: 18px 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}
.day-group:first-child .day-label { margin-top: 0; }

input[type="date"],
input[type="datetime-local"],
input[type="text"],
input[type="password"],
select,
textarea {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 0;
  border-color: var(--primary);
}

/* ---- 记录卡片 ---- */
.records { display: flex; flex-direction: column; gap: 12px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.card-dose { border-left: 3px solid var(--primary); }
.card-lab { border-left: 3px solid var(--e2); }

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-title { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.drug-name { font-weight: 600; font-size: 16px; }
.name-en { color: var(--text-muted); font-size: 14px; }

.card-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.date { color: var(--text-muted); font-size: 13px; white-space: nowrap; }
.card-actions { display: flex; gap: 6px; }

.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--text);
  font-size: 13px;
}
.pill-label { color: var(--text-muted); font-size: 12px; }

.notes {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 14px;
  white-space: pre-wrap;
}

.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 48px 0;
}

/* ---- 表单 ---- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 16px;
}
.field { display: flex; flex-direction: column; gap: 5px; }
.label { font-size: 13px; color: var(--text-muted); }
.req { color: var(--danger); margin-left: 2px; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }

/* ---- 模态框 ---- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 32px 16px;
  overflow-y: auto;
  z-index: 50;
}
.modal[hidden] { display: none; }

.modal-card {
  background: var(--surface);
  border-radius: 12px;
  width: 100%;
  max-width: 640px;
  padding: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.modal-head h2 { margin: 0; font-size: 17px; font-weight: 600; }

/* ---- 登录页 ---- */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-card h1 { margin: 0 0 6px; font-size: 20px; }
.login-card .muted { margin: 0 0 20px; }
.login-card form { display: flex; flex-direction: column; gap: 14px; }

.login-footer { display: flex; justify-content: flex-end; margin-top: 20px; }

.error {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 14px;
}

/* ---- toast ---- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #1f2937;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 100;
}
.toast.show { opacity: 1; }
.toast.error { background: var(--danger); }

@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
  .topbar { padding: 12px 14px; }
  .container { padding: 14px; }
}