:root {
  --bg: #f4f6f5;
  --card: #ffffff;
  --ink: #1c2421;
  --muted: #5f6b67;
  --line: #dde3e0;
  --brand: #0f766e;
  --brand-ink: #ffffff;
  --brand-soft: #e3f3f1;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --ok: #15803d;
  --ok-soft: #e7f6ec;
  --warn: #a15c07;
  --warn-soft: #fdf3e2;
  --radius: 10px;
  font-family: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111715;
    --card: #19211e;
    --ink: #e7eeeb;
    --muted: #9aa8a3;
    --line: #2b3632;
    --brand: #2bb3a3;
    --brand-ink: #06201c;
    --brand-soft: #16302c;
    --danger: #f2877d;
    --danger-soft: #3a1d1a;
    --ok: #6fd391;
    --ok-soft: #173023;
    --warn: #f0b45c;
    --warn-soft: #362712;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-size: 15px; line-height: 1.6; }
h1, h2, h3 { margin: 0; line-height: 1.3; }
h2 { font-size: 18px; }
.muted { color: var(--muted); }
.ltr { direction: ltr; unicode-bidi: embed; font-family: Consolas, "Courier New", monospace; }
[hidden] { display: none !important; }

/* ---------- ورود ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
.login-card .logo { width: 56px; height: 56px; margin-bottom: 12px; }
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-card p { margin: 0 0 20px; }

/* ---------- قالب اصلی ---------- */
.topbar { display: flex; align-items: center; gap: 12px; padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.topbar .logo { width: 32px; height: 32px; }
.topbar h1 { font-size: 16px; }
.topbar .spacer { flex: 1; }
.tabs { display: flex; gap: 4px; padding: 12px 20px 0; flex-wrap: wrap; }
.tab { border: 0; background: transparent; color: var(--muted); padding: 8px 14px; border-radius: 8px; cursor: pointer; font: inherit; }
.tab.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
main { padding: 16px 20px 40px; max-width: 1200px; }
.section-head { display: flex; align-items: center; gap: 12px; margin: 8px 0 14px; flex-wrap: wrap; }
.section-head .spacer { flex: 1; }

/* ---------- کارت‌ها ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat .num { font-size: 28px; font-weight: 700; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }

/* ---------- جدول ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { text-align: right; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
th { font-size: 13px; color: var(--muted); font-weight: 600; background: var(--bg); }
tr:last-child td { border-bottom: 0; }
td .actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- فرم و دکمه ---------- */
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select { width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; }
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: transparent; }
.field { margin-bottom: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0 12px; }
.btn { text-decoration: none; display: inline-block; font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink); padding: 8px 14px; border-radius: 8px; cursor: pointer; }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: default; }
.error { color: var(--danger); background: var(--danger-soft); border-radius: 8px; padding: 8px 12px; margin-bottom: 12px; font-size: 14px; }

/* ---------- برچسب وضعیت ---------- */
.badge { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px; background: var(--bg); color: var(--muted); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.off { background: var(--danger-soft); color: var(--danger); }
.badge.brand { background: var(--brand-soft); color: var(--brand); }

/* ---------- پنجره‌ی وسط صفحه ---------- */
.modal-back { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: grid; place-items: center; padding: 16px; z-index: 20; }
.modal { width: 100%; max-width: 440px; background: var(--card); border-radius: 14px; padding: 22px; max-height: 92vh; overflow-y: auto; }
.modal h2 { margin-bottom: 14px; }
.modal .buttons { display: flex; gap: 8px; justify-content: flex-start; margin-top: 8px; flex-wrap: wrap; }

/* ---------- برچسب QR ---------- */
.qr-label { border: 1px dashed var(--line); border-radius: 12px; padding: 16px; text-align: center; background: #fff; color: #000; }
.qr-label img { width: 220px; height: 220px; display: block; margin: 0 auto 8px; }
.qr-label .serial { font-size: 20px; font-weight: 700; direction: ltr; }
.code-box { background: var(--bg); border-radius: 8px; padding: 8px 12px; margin: 12px 0; word-break: break-all; }
.note { font-size: 13px; color: var(--warn); background: var(--warn-soft); border-radius: 8px; padding: 8px 12px; margin-top: 12px; }

/* ---------- پیام کوتاه ---------- */
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 10px; z-index: 30; max-width: 90vw; }

/* ---------- چاپ: فقط برچسب QR ---------- */
@media print {
  body.printing > *:not(.modal-back) { display: none !important; }
  body.printing .modal-back { position: static; background: none; padding: 0; }
  body.printing .modal { box-shadow: none; padding: 0; max-width: none; }
  body.printing .modal > *:not(.qr-label) { display: none !important; }
  body.printing .qr-label { border: 0; }
}

@media (max-width: 600px) {
  .topbar, .tabs, main { padding-left: 16px; padding-right: 16px; }
  .topbar h1 { display: none; }
}

/* ---------- بیماران و نمودارها ---------- */
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--brand-soft); }
.small { font-size: 12px; }
.unit { font-size: 14px; font-weight: 400; color: var(--muted); }
.tabs.inline { padding: 0; }
.chart { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 12px 4px; margin: 12px 0; }
.chart-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.chart-empty { padding: 24px 0; text-align: center; }
.chart-svg { width: 100%; height: auto; display: block; direction: ltr; }
.chart-grid { stroke: var(--line); stroke-width: 1; }
.chart-normal { fill: var(--ok-soft); }
.chart-label { fill: var(--muted); font-size: 11px; font-family: inherit; }
.chart-line { fill: none; stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; }
.chart-line.c1 { stroke: #d6455d; }
.chart-line.c2 { stroke: #2f6fdb; }
.chart-line.c3 { stroke: #c27b12; }
@media (prefers-color-scheme: dark) {
  .chart-line.c1 { stroke: #f2788c; }
  .chart-line.c2 { stroke: #7aa7f5; }
  .chart-line.c3 { stroke: #f0b45c; }
}