:root {
  --nen: #EEF3F9; --the: #FFFFFF; --chu: #0F1E3D; --nhat: #64748B; --vien: #E2E8F2;
  --navy: #1E3A8A; --navy2: #2B4FBF; --xanh: #2563EB; --la: #059669;
  --do: #DC2626; --do-nen: #FDE4E4; --ok: #15803D; --ok-nen: #DCFCE7; --cam: #C2410C; --cam-nen: #FFEDD5;
  --g-tim: linear-gradient(135deg, #6D5BD0, #8B7BE8); --g-navy: linear-gradient(135deg, #1E40AF, #2563EB);
  --g-troi: linear-gradient(135deg, #0284C7, #38BDF8); --g-cam: linear-gradient(135deg, #EA580C, #F59E0B);
  --g-la: linear-gradient(135deg, #059669, #34D399);
  --bong: 0 4px 18px rgba(30, 58, 138, .07); --bo: 16px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --nen: #0D1526; --the: #15203A; --chu: #E6ECF7; --nhat: #94A3B8; --vien: #24324F; --xanh: #3B82F6;
    --do-nen: #3A1C22; --ok-nen: #143325; --cam-nen: #3A2614; --do: #F87171; --ok: #4ADE80; --cam: #FB923C; --bong: 0 4px 18px rgba(0,0,0,.25); color-scheme: dark; }
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
:root { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
body { font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; background: var(--nen); color: var(--chu);
  font-size: 15px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: var(--xanh); }
h1 { font-size: 22px; margin: 0; font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 18px; margin: 0 0 14px; font-weight: 700; }
p.mo { color: var(--nhat); margin: 4px 0 18px; max-width: 75ch; }
button, input, select, textarea { font: inherit; color: inherit; }
button { border: 1px solid var(--vien); background: var(--the); border-radius: 10px; padding: 9px 16px; cursor: pointer; font-weight: 600; }
button:hover { border-color: #C7D2E6; }
button.chinh { background: var(--g-navy); border: 0; color: #fff; box-shadow: 0 4px 12px rgba(37, 99, 235, .25); }
button.la { background: var(--g-la); border: 0; color: #fff; }
button.nguy { color: var(--do); }
button:disabled { opacity: .55; cursor: default; }
:focus-visible { outline: 2px solid var(--xanh); outline-offset: 2px; }
input, select, textarea { width: 100%; border: 1px solid var(--vien); background: var(--the); border-radius: 10px; padding: 10px 12px; }
textarea { min-height: 74px; resize: vertical; }
label { display: block; font-size: 13px; color: var(--nhat); margin: 12px 0 5px; font-weight: 500; }

/* thanh trên cùng */
.dau { position: sticky; top: 0; z-index: 10; background: var(--the); box-shadow: 0 1px 0 var(--vien); }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); background: var(--the); z-index: 11; }
.dau-trong { max-width: 1320px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--chu); }
.logo .huy { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, #16A34A, #065F46); display: grid; place-items: center; box-shadow: 0 4px 12px rgba(6, 95, 70, .3); }
.logo b { display: block; font-size: 19px; line-height: 1.15; }
.menu { display: flex; gap: 2px; margin-top: 3px; flex-wrap: wrap; }
.menu a { font-size: 13.5px; color: var(--nhat); text-decoration: none; padding: 2px 9px; border-radius: 7px; font-weight: 500; }
.menu a.dang { background: #E0EAFF; color: var(--navy); font-weight: 600; }
.phai { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.phai select { width: auto; min-width: 190px; font-weight: 600; }
main { max-width: 1320px; margin: 0 auto; padding: 24px 24px 90px; }

/* thanh chọn dạng viên thuốc */
.vien-thuoc { display: inline-flex; gap: 4px; padding: 5px; border-radius: 14px; background: var(--g-navy); box-shadow: 0 6px 18px rgba(30, 64, 175, .25); overflow-x: auto; max-width: 100%; }
.vien-thuoc a { color: #DCE6FF; text-decoration: none; padding: 8px 18px; border-radius: 10px; font-weight: 600; white-space: nowrap; font-size: 14.5px; }
.vien-thuoc a.dang { background: rgba(255, 255, 255, .2); color: #fff; }
.tieu-de { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }

/* thẻ số liệu */
.so-lieu { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; margin-bottom: 22px; }
.kpi { border-radius: var(--bo); padding: 18px 20px; color: #fff; position: relative; overflow: hidden; min-height: 118px; box-shadow: var(--bong); }
.kpi::after { content: ""; position: absolute; width: 120px; height: 120px; border-radius: 50%; right: -30px; top: -40px; background: rgba(255, 255, 255, .12); }
.kpi .n { font-size: 14px; opacity: .92; font-weight: 600; }
.kpi .v { font-size: 30px; font-weight: 700; margin: 4px 0 2px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kpi .p { font-size: 13px; opacity: .85; }
.tim { background: var(--g-tim); } .navy { background: var(--g-navy); } .troi { background: var(--g-troi); } .cam-g { background: var(--g-cam); } .la-g { background: var(--g-la); }
@media (max-width: 1100px) { .so-lieu { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) { .so-lieu { grid-template-columns: repeat(2, minmax(0, 1fr)); } .kpi .v { font-size: 24px; } }

/* khối và bảng */
.khoi { background: var(--the); border-radius: var(--bo); padding: 20px 22px; margin-bottom: 18px; box-shadow: var(--bong); }
.cuon { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--vien); vertical-align: top; }
th { font-weight: 600; color: var(--nhat); font-size: 13px; background: color-mix(in srgb, var(--nen) 60%, var(--the)); }
tr:last-child td { border-bottom: 0; }
td.so { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
tr.bam { cursor: pointer; } tr.bam:hover td { background: color-mix(in srgb, #E0EAFF 45%, transparent); }
.ten-nhan { display: flex; gap: 12px; align-items: center; font-weight: 700; }
.ten-nhan i { width: 4px; height: 34px; border-radius: 4px; display: inline-block; }
.the { display: inline-block; font-size: 12.5px; padding: 3px 10px; border-radius: 99px; background: #EEF2F8; color: var(--nhat); font-weight: 600; }
.the.xanh { background: var(--ok-nen); color: var(--ok); } .the.do { background: var(--do-nen); color: var(--do); } .the.cam { background: var(--cam-nen); color: var(--cam); }
.hang { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.luoi2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
@media (max-width: 760px) { .luoi2 { grid-template-columns: 1fr; } .dau-trong { padding: 10px 14px; } main { padding: 16px 14px 90px; } .phai select { min-width: 0; } }

/* bong bóng chat */
.chat { display: flex; flex-direction: column; gap: 6px; }
.bb { max-width: 78%; padding: 9px 14px; border-radius: 18px; white-space: pre-line; font-size: 14.5px; line-height: 1.45; }
.bb.bot { align-self: flex-end; background: var(--xanh); color: #fff; border-bottom-right-radius: 6px; }
.bb.khach { align-self: flex-start; background: #EAF0F8; color: var(--chu); border-bottom-left-radius: 6px; }
@media (prefers-color-scheme: dark) { .bb.khach { background: #22314F; } }
.bb.nv { align-self: flex-end; background: var(--ok-nen); color: var(--ok); }
.ghi { align-self: center; font-size: 12.5px; color: var(--nhat); text-align: center; }
.cach { border-left: 3px solid var(--vien); padding: 4px 0 4px 12px; margin: 10px 0; }
.cach .chat { margin-top: 6px; }
.trang-thai-thu { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }

dialog { border: 0; border-radius: 18px; padding: 0; max-width: 720px; width: calc(100% - 24px); background: var(--the); color: var(--chu); box-shadow: 0 20px 60px rgba(15, 30, 61, .3); }
dialog::backdrop { background: rgba(15, 30, 61, .45); }
dialog .noi { padding: 22px 24px; max-height: 76vh; overflow-y: auto; }
dialog .chan { padding: 14px 24px; border-top: 1px solid var(--vien); display: flex; gap: 8px; justify-content: flex-end; }
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--chu); color: var(--the); padding: 11px 18px;
  border-radius: 12px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 50; max-width: 90vw; }
#toast.hien { opacity: 1; }
.dang-nhap { max-width: 400px; margin: 14vh auto 0; padding: 0 20px; }
.dang-nhap .khoi { padding: 28px; }
.de-xuat { border: 1px dashed var(--cam); background: var(--cam-nen); border-radius: 12px; padding: 10px 14px; margin: 8px 0; font-size: 14px; }
.thanh-tien { height: 8px; border-radius: 8px; background: #E2E8F2; overflow: hidden; margin-top: 10px; }
.thanh-tien i { display: block; height: 100%; background: var(--g-navy); width: 0; transition: width .3s; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---- bản 2: phần đầu to hơn, cột nhãn bên trái, ô bắt buộc, ảnh khách ---- */
.dau-trong { padding: 16px 28px; }
.logo .huy { width: 52px; height: 52px; border-radius: 14px; }
.logo b { font-size: 23px; }
.menu { margin-top: 6px; gap: 4px; }
.menu a { font-size: 16px; padding: 5px 12px; border-radius: 9px; }
.khung2 { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 22px; padding: 24px 28px 90px; }
.khung2 main { padding: 0; max-width: none; margin: 0; }
.cot-nhan { position: sticky; top: 104px; align-self: start; display: flex; flex-direction: column; gap: 8px; }
.cot-nhan .tieu { font-size: 13px; color: var(--nhat); font-weight: 600; margin: 0 4px 2px; }
.nut-nhan { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 14px; background: var(--the); box-shadow: var(--bong);
  text-decoration: none; color: var(--chu); border: 2px solid transparent; }
.nut-nhan i { width: 5px; align-self: stretch; border-radius: 5px; }
.nut-nhan b { display: block; font-size: 15.5px; line-height: 1.25; }
.nut-nhan span { font-size: 12.5px; color: var(--nhat); }
.nut-nhan.dang { border-color: var(--xanh); background: color-mix(in srgb, #E0EAFF 55%, var(--the)); }
.nut-nhan.them { justify-content: center; color: var(--xanh); font-weight: 700; box-shadow: none; border: 2px dashed #BFD0F2; background: transparent; }
@media (max-width: 900px) {
  .khung2 { grid-template-columns: 1fr; padding: 14px 14px 90px; }
  .cot-nhan { position: static; flex-direction: row; overflow-x: auto; padding-bottom: 4px; }
  .cot-nhan .tieu { display: none; } .nut-nhan { flex: 0 0 auto; }
  .logo b { font-size: 19px; } .menu a { font-size: 14.5px; padding: 3px 9px; }
}
.bat-buoc input, .bat-buoc textarea, .bat-buoc select { border: 2px solid #F59E0B; background: color-mix(in srgb, #FEF3C7 45%, var(--the)); }
.bat-buoc label::after { content: " · bắt buộc"; color: var(--cam); font-weight: 700; }
.bat-buoc.thieu input, .bat-buoc.thieu textarea { border-color: var(--do); box-shadow: 0 0 0 3px color-mix(in srgb, var(--do) 18%, transparent); }
.khoi.noi-bat { border: 2px solid #F59E0B; }
.khoi.noi-bat > h2::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: #F59E0B; margin-right: 8px; vertical-align: middle; }
.anh-khach { width: 38px; height: 38px; border-radius: 50%; object-fit: cover; background: var(--g-navy); color: #fff; display: inline-grid; place-items: center; font-weight: 700; font-size: 14px; flex: 0 0 auto; }
.dong-khach { display: flex; gap: 12px; align-items: center; }
.dong-khach small { display: block; color: var(--nhat); font-size: 12.5px; }
.prompt-mau { white-space: pre-wrap; font-size: 13px; background: color-mix(in srgb, var(--nen) 70%, var(--the)); border-radius: 12px; padding: 14px; max-height: 260px; overflow: auto; border: 1px solid var(--vien); }