/* Cổng khách hàng VIP GROUP — realm khách của VIP ID. Không inline style/script (CSP chặt). */
:root{--red:#D0071A;--red-2:#a80515;--ink:#1a1a1a;--muted:#5f6670;--line:#e4e6ea;--bg:#f6f7f9;
  --ok:#067647;--ok-bg:#e7f6ee;--err:#b42318;--err-bg:#fdecea;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.55;color:var(--ink);background:var(--bg);
  min-height:100vh;display:flex;flex-direction:column}
a{color:var(--red)}
h1{font-size:clamp(22px,5vw,28px);line-height:1.2;margin:0 0 10px;letter-spacing:-.01em}
p{margin:0 0 12px}
.kh-wrap{width:100%;max-width:520px;margin:0 auto;padding:0 16px}
.kh-top{background:#fff;border-bottom:3px solid var(--red)}
.kh-top-in{display:flex;align-items:center;min-height:64px}
.kh-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.kh-mark{width:38px;height:38px;border-radius:10px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:800;font-size:19px}
.kh-brand-text{display:flex;flex-direction:column;line-height:1.1}
.kh-brand-text b{font-size:16px;letter-spacing:.02em}
.kh-brand-text small{font-size:12px;color:var(--muted)}
.kh-main{flex:1;padding-top:24px;padding-bottom:24px}
.kh-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 20px;box-shadow:0 10px 30px -20px rgba(0,0,0,.25)}
.kh-eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:6px}
.kh-muted{color:var(--muted)}
.kh-form{display:flex;flex-direction:column;gap:14px;margin:16px 0}
.kh-form-inline{margin:8px 0}
.kh-field{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
.kh-field input{font:inherit;font-weight:400;font-size:16px;padding:12px 14px;border:1px solid #cfd3d9;border-radius:10px;background:#fff;width:100%}
.kh-field input:focus{outline:2px solid var(--red);outline-offset:1px;border-color:var(--red)}
.kh-check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.kh-check input{margin-top:4px;width:18px;height:18px;accent-color:var(--red);flex:0 0 auto}
.kh-btn{display:inline-block;text-align:center;font:inherit;font-weight:700;background:var(--red);color:#fff;border:0;border-radius:10px;
  padding:13px 18px;cursor:pointer;text-decoration:none;width:100%}
.kh-btn:hover{background:var(--red-2)}
.kh-btn:focus-visible{outline:3px solid #ffb3ba;outline-offset:2px}
.kh-btn-ghost{background:#fff;color:var(--red);border:1px solid var(--red)}
.kh-btn-ghost:hover{background:#fff5f6}
.kh-alert{border-radius:10px;padding:12px 14px;margin:12px 0;font-size:15px}
.kh-alert-ok{background:var(--ok-bg);color:var(--ok)}
.kh-alert-err{background:var(--err-bg);color:var(--err)}
.kh-links{font-size:14px;margin-top:16px}
.kh-foot{font-size:12.5px;color:var(--muted);padding-bottom:24px;text-align:center}
@media (min-width:600px){.kh-card{padding:32px 32px}.kh-main{padding-top:48px}}
.kh-info{display:grid;grid-template-columns:max-content 1fr;gap:8px 16px;margin:16px 0 20px;font-size:15px}
.kh-info dt{color:var(--muted)}
.kh-info dd{margin:0}
.kh-break{word-break:break-all}
@media (max-width:380px){.kh-info{grid-template-columns:1fr}.kh-info dd{margin-bottom:6px}}