/* ===== Giao diện chung cho các trang tài khoản (nền đêm như trang chủ) ===== */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{min-height:100vh;background:#05070d;color:#e8ecf5;
  font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;display:flex;flex-direction:column}
a{color:#6fb4ff;text-decoration:none}
a:hover{text-decoration:underline}

.nen{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.nen .vom{position:absolute;left:50%;top:76vh;width:min(185vw,2400px);aspect-ratio:1;
  transform:translateX(-50%);border-radius:50%;
  background:radial-gradient(circle at 50% 6%,#2a5ec0 0%,#16346f 5%,#0c1d49 26%,#050a1e 58%)}
.nen .sang{position:absolute;left:50%;top:76vh;width:min(120vw,1500px);aspect-ratio:1;
  transform:translate(-50%,-50%);border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(255,244,218,.7) 0%,rgba(255,198,132,.35) 4%,
    rgba(128,160,255,.22) 11%,rgba(8,16,44,0) 34%)}

header{position:relative;z-index:3;padding:18px 26px}
.hieu{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:18.5px;
  letter-spacing:-.025em;text-decoration:none}
.hieu:hover{text-decoration:none}
.hieu svg{width:33px;height:33px;flex:0 0 auto}
.hieu .ten{color:#6fb4ff}
.hieu .ten b{color:#fff;font-weight:800}

main{position:relative;z-index:2;flex:1;display:flex;align-items:center;justify-content:center;
  padding:16px 18px 56px}
.the{width:100%;max-width:412px;background:rgba(15,21,38,.82);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:30px 28px;
  box-shadow:0 22px 70px rgba(0,0,0,.5)}
h1{margin:0 0 6px;font-size:25px;font-weight:800;letter-spacing:-.02em}
.dan{margin:0 0 22px;font-size:14px;color:#9aa8c6}

label{display:block;font-size:12.5px;font-weight:700;color:#aeb9d4;margin:14px 0 6px}
input[type=text],input[type=email],input[type=password],input[type=tel]{
  width:100%;padding:12px 13px;border-radius:10px;font:inherit;font-size:15px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);color:#fff}
input::placeholder{color:#6f7d9c}
input:focus{outline:none;border-color:#3d93ff;background:rgba(61,147,255,.1);
  box-shadow:0 0 0 3px rgba(61,147,255,.18)}
.matKhauO{position:relative}
.hienMk{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;
  color:#8e9bb8;cursor:pointer;font-size:12.5px;font-weight:700;padding:7px 9px;border-radius:7px}
.hienMk:hover{background:rgba(255,255,255,.08);color:#fff}

.dongY{display:flex;gap:9px;align-items:flex-start;margin:18px 0 4px;
  font-size:12.5px;color:#9aa8c6;line-height:1.55;cursor:pointer}
.dongY input{width:17px;height:17px;margin:1px 0 0;accent-color:#3d93ff;flex:0 0 auto;cursor:pointer}

button.chinh{width:100%;margin-top:20px;padding:13px;border:0;border-radius:11px;
  background:#fff;color:#0a0d16;font:inherit;font-size:15.5px;font-weight:800;cursor:pointer}
button.chinh:hover{background:#dfe7f7}
button.chinh:disabled{opacity:.55;cursor:default}

.loi,.on{margin-top:16px;padding:11px 13px;border-radius:10px;font-size:13.5px;line-height:1.55}
.loi{background:rgba(229,72,77,.14);border:1px solid rgba(229,72,77,.4);color:#ffb4b7}
.on{background:rgba(23,166,115,.14);border:1px solid rgba(23,166,115,.4);color:#8ae3c0}

.duoi{margin-top:20px;text-align:center;font-size:13.5px;color:#8e9bb8}
.phuLink{display:block;margin-top:11px;text-align:right;font-size:12.5px}

@media (max-width:460px){
  header{padding:14px 16px}
  .the{padding:24px 20px;border-radius:15px}
  h1{font-size:22px}
}