/* NBKH v2 — giao diện dùng chung cho cả hai app */

:root{
  --teal:#0f766e; --teal-nhat:#ccfbf1;
  --lam:#1d4ed8;  --lam-nhat:#dbeafe;
  --luc:#059669; --do:#dc2626; --cam:#f97316; --vang:#f59e0b;
  --nen:#f1f5f9; --the:#fff; --vien:#e2e8f0; --chu:#0f172a; --mo:#64748b;
  --chinh:var(--teal); --chinh-nhat:var(--teal-nhat);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
     background:var(--nen);color:var(--chu);font-size:16px;
     /* Chừa chỗ cho tai thỏ và thanh vuốt của iPhone */
     padding-top:env(safe-area-inset-top);
     padding-bottom:env(safe-area-inset-bottom)}

.ic{width:1.15em;height:1.15em;stroke:currentColor;fill:none;stroke-width:2;
    stroke-linecap:round;stroke-linejoin:round;vertical-align:-.2em;flex:0 0 auto}
.ic.to{width:1.35em;height:1.35em}

/* ---------- Màn đăng nhập ---------- */
.manDangNhap{min-height:100dvh;display:flex;align-items:center;justify-content:center;
             padding:24px 20px;background:linear-gradient(160deg,#0f766e,#134e4a)}
.theDangNhap{width:100%;max-width:380px;background:#fff;border-radius:20px;padding:30px 24px;
             box-shadow:0 24px 60px rgba(0,0,0,.28)}
.theDangNhap .logo{display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.theDangNhap .logo img{width:120px;height:auto;display:block}
.theDangNhap h1{margin:0;font-size:20px;text-align:center;letter-spacing:-.2px}
.theDangNhap .phu{margin:6px 0 24px;font-size:13.5px;color:var(--mo);text-align:center}

label{display:block;font-size:13px;font-weight:700;margin:0 0 6px;color:#334155}
.nhom{margin-bottom:14px}
input{width:100%;padding:14px;border:1.5px solid var(--vien);border-radius:12px;
      font-size:17px;font-family:inherit;background:#fff;color:var(--chu)}
input:focus{outline:none;border-color:var(--chinh);box-shadow:0 0 0 3px var(--chinh-nhat)}
input::placeholder{color:#cbd5e1}

.nutChinh{width:100%;padding:16px;border:none;border-radius:12px;background:var(--chinh);
          color:#fff;font-size:16.5px;font-weight:800;font-family:inherit;margin-top:6px;
          display:flex;align-items:center;justify-content:center;gap:9px}
.nutChinh:disabled{background:#94a3b8}
.nutChinh:active:not(:disabled){opacity:.88}

.baoLoi{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:11px;
        padding:12px 14px;font-size:13.5px;font-weight:600;margin-bottom:14px;line-height:1.5}
.baoLoi.an{display:none}

.ghiChuDN{margin-top:18px;font-size:12px;color:var(--mo);text-align:center;line-height:1.6}

/* ---------- Vòng quay chờ ---------- */
.quay{width:18px;height:18px;border:2.5px solid rgba(255,255,255,.35);
      border-top-color:#fff;border-radius:50%;animation:xoay .7s linear infinite}
@keyframes xoay{to{transform:rotate(360deg)}}

.manCho{min-height:100dvh;display:flex;flex-direction:column;align-items:center;
        justify-content:center;gap:14px;color:var(--mo);font-size:14px}
.manCho .quay{border-color:#cbd5e1;border-top-color:var(--teal);width:30px;height:30px;border-width:3px}

/* ---------- Toast ---------- */
.toast{position:fixed;left:16px;right:16px;bottom:calc(20px + env(safe-area-inset-bottom));
       background:#0f172a;color:#fff;padding:14px 16px;border-radius:13px;font-size:14.5px;
       font-weight:600;z-index:999;box-shadow:0 10px 30px rgba(0,0,0,.3);
       transform:translateY(160%);transition:transform .28s cubic-bezier(.2,.9,.3,1);
       max-width:420px;margin:0 auto;text-align:center}
.toast.hien{transform:translateY(0)}
.toast.loi{background:#b91c1c}
.toast.ok{background:#065f46}