@font-face{font-family:"Be Vietnam Pro";src:url(/fonts/BeVietnamPro-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(/fonts/BeVietnamPro-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(/fonts/BeVietnamPro-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(/fonts/BeVietnamPro-700.woff2) format("woff2");font-weight:700;font-display:swap}

/* Tông sáng kiểu giấy bảo an: nền ngà, chữ than đậm, nhấn xanh lục «đã xác minh». Không gradient, không phát sáng. */
:root{
  --bg:#ffffff; --card:#ffffff; --line:#dfe3df; --text:#142019; --muted:#5a665f;
  --accent:#0b6e4f; --accent-hover:#085a41; --accent-text:#ffffff; --field:#ffffff; --focus:#0b6e4f33;
  --soft:#e3f1ea; --soft-text:#0b5e44;
  --error:#b3261e; --ok:#0b6e4f;
  --hero:#f3f5f1; --hero-text:#142019; --hero-muted:#56625b; --hero-line:#d6ddd7; --hero-icon:#0b6e4f; --hero-ink:#0b6e4f14;
  --logo:#0b6e4f;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#101412; --card:#161b18; --line:#28302b; --text:#edf2ee; --muted:#9aa69f;
    --accent:#2fa77a; --accent-hover:#3dba8b; --accent-text:#ffffff; --field:#111613; --focus:#2fa77a44;
    --soft:#173327; --soft-text:#8fe0bd;
    --error:#ff8a80; --ok:#6fd6a6;
    --hero:#141a16; --hero-text:#edf2ee; --hero-muted:#9aa69f; --hero-line:#2a332d; --hero-icon:#5cc79a; --hero-ink:#5cc79a12;
    --logo:#1f8a63;
  }
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--text);font:400 16px/1.5 "Be Vietnam Pro",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
svg{flex:none}

.page{min-height:100vh;display:grid;grid-template-columns:minmax(380px,46%) 1fr}

/* ── Cột thương hiệu ── */
.hero{position:relative;overflow:hidden;color:var(--hero-text);background:var(--hero);border-right:1px solid var(--hero-line)}
/* Hoa văn chìm như giấy bảo an (vòng đồng tâm mảnh ở góc) */
.hero::before{content:"";position:absolute;width:900px;height:900px;right:-420px;bottom:-460px;border-radius:50%;
  background:repeating-radial-gradient(circle,transparent 0 13px,var(--hero-ink) 13px 14px)}
.hero::after{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--accent)}
.hero-in{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;padding:56px clamp(32px,6vw,80px);max-width:620px;margin-left:auto}

.logo{display:flex;align-items:center;gap:14px}
.logo-tile{width:52px;height:52px}
.logo-bg{fill:var(--logo)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:26px;font-weight:700;letter-spacing:-.015em}
.logo-name b{font-weight:700;color:var(--hero-icon)}
.logo-sub{font-size:13px;color:var(--hero-muted);letter-spacing:.02em;margin-top:3px}

.hero-title{margin:44px 0 30px;font-size:clamp(26px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.02em}

.points{list-style:none;margin:0;padding:0;display:grid;gap:20px}
.points li{display:flex;gap:14px;align-items:flex-start}
.points svg{width:38px;height:38px;padding:8px;border-radius:10px;background:var(--card);border:1px solid var(--hero-line);
  fill:none;stroke:var(--hero-icon);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.points strong{display:block;font-size:15.5px;font-weight:600;margin:1px 0 2px}
.points span{display:block;font-size:14px;color:var(--hero-muted);line-height:1.5}

.dc{display:inline-flex;align-items:center;gap:10px;align-self:flex-start;margin-top:40px;padding:9px 14px;border-radius:999px;
  background:var(--card);border:1px solid var(--hero-line);font-size:13px;color:var(--hero-muted)}
.dc b{color:var(--hero-text);font-weight:600}
.dc-dot{width:8px;height:8px;border-radius:50%;background:#1aa86b;box-shadow:0 0 0 4px #1aa86b26}

/* ── Cột đăng nhập ── */
.side{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px 28px}
.card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px 32px 24px;
  box-shadow:0 1px 2px #1420190a,0 10px 30px #1420190d}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px 5px 8px;border-radius:999px;background:var(--soft);color:var(--soft-text);font-size:12.5px;font-weight:600}
.badge svg{width:15px;height:15px;fill:currentColor}
.host{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:12.5px;word-break:break-all}
.host::before{content:"";width:12px;height:12px;flex:none;background:var(--ok);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h1Zm2 0h6V7a3 3 0 0 0-6 0v3Z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h1Zm2 0h6V7a3 3 0 0 0-6 0v3Z'/%3E%3C/svg%3E") center/contain no-repeat}
.host:empty{display:none}

.step-no{margin:0 0 6px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
h1{margin:0 0 8px;font-size:24px;font-weight:700;letter-spacing:-.015em}
.lead{margin:0 0 22px;color:var(--muted);font-size:14.5px}
.lead strong{color:var(--text);font-weight:600;overflow-wrap:anywhere}
label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px}
.field{position:relative}
.field svg{position:absolute;left:14px;top:50%;width:20px;height:20px;transform:translateY(-50%);fill:none;stroke:var(--muted);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.field input{padding-left:44px}
input{width:100%;height:50px;padding:0 14px;border-radius:10px;border:1.5px solid var(--line);background:var(--field);color:var(--text);font:inherit;font-size:16px;outline:none;transition:border-color .15s,box-shadow .15s}
input::placeholder{color:var(--muted);opacity:.7}
input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--focus)}
input.code{height:58px;font-size:28px;font-weight:600;letter-spacing:.5em;text-align:center;font-variant-numeric:tabular-nums;padding-left:.5em}
input.code::placeholder{letter-spacing:.35em}
.msg{min-height:20px;margin:10px 0 8px;font-size:13.5px;color:var(--error)}
.msg.ok{color:var(--ok)}
.btn{width:100%;height:50px;border:0;border-radius:10px;background:var(--accent);color:var(--accent-text);font:inherit;font-size:15.5px;font-weight:600;cursor:pointer;transition:background .15s,transform .05s}
.btn:hover{background:var(--accent-hover)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.6;cursor:default}
.btn:focus-visible,.link:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.links{display:flex;justify-content:space-between;gap:12px;margin-top:14px}
.link{background:none;border:0;padding:4px 0;color:var(--accent);font:inherit;font-size:14px;font-weight:500;cursor:pointer}
.link:disabled{color:var(--muted);cursor:default}
.note{margin:20px 0 0;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;text-align:center}

.foot{margin-top:22px;max-width:420px;text-align:center;color:var(--muted);font-size:12.5px}
.foot p{margin:0}
.foot .cp{margin-top:6px;opacity:.8}
[hidden]{display:none!important}

/* ── Máy tính bảng / điện thoại: cột thương hiệu thu gọn lên trên ── */
@media (max-width:900px){
  .page{grid-template-columns:1fr}
  .hero{border-right:0;border-bottom:1px solid var(--hero-line)}
  .hero-in{max-width:none;margin:0;padding:28px 20px 26px}
  .hero-title{margin:22px 0 18px;font-size:21px}
  .hero-title br{display:none}
  .points{gap:12px}
  .points svg{width:32px;height:32px;padding:6px}
  .points strong{font-size:14.5px}
  .points span{font-size:13px}
  .dc{margin-top:20px;font-size:12px}
  .side{justify-content:flex-start;padding:24px 16px 28px}
}
@media (max-width:480px){
  .logo-tile{width:44px;height:44px}
  .logo-name{font-size:22px}
  .points span{display:none}
  .points li{align-items:center}
  .card{padding:22px 20px 20px}
}