:root{--bg:#0d0e12;--s1:#141619;--s2:#1b1d23;--s3:#22242c;--bd:#2c2e38;--bd2:#383a48;--ac:#8b5cf6;--ac2:#60a5fa;--tx:#e2e4f0;--mu:#5a5c70;--mu2:#3d3f52;--ok:#34d399;--er:#f87171;--r:10px;--r2:6px;--sh:0 4px 24px rgba(0,0,0,.45);--topbar-bg:rgba(13,14,18,.88);--cl-male:#4ade80;--cl-female:#f87171;--cl-other:#fb923c;--cl-blue:#93c5fd}[data-theme=light]{--bg:#ece8f8;--s1:#faf8ff;--s2:#f2effd;--s3:#e6e0f6;--bd:#cfc8ee;--bd2:#bcb4e4;--ac:#7c3aed;--ac2:#3b82f6;--tx:#1a1530;--mu:#5e5878;--mu2:#8c88a6;--ok:#059669;--er:#dc2626;--sh:0 4px 24px rgba(80,50,180,.13);--topbar-bg:#300d72;--cl-male:#16a34a;--cl-female:#dc2626;--cl-other:#c2410c;--cl-blue:#2563eb}[data-theme=dim]{--bg:#1e2030;--s1:#222436;--s2:#2a2d44;--s3:#333652;--bd:#3a3d56;--bd2:#4a4e6e;--ac:#8b5cf6;--ac2:#60a5fa;--tx:#cad3f5;--mu:#8087a2;--mu2:#5b6080;--ok:#34d399;--er:#f87171;--sh:0 4px 24px rgba(0,0,0,.35);--topbar-bg:rgba(30,32,48,.92);--cl-male:#4ade80;--cl-female:#f87171;--cl-other:#fb923c;--cl-blue:#93c5fd}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background:var(--bg);color:var(--tx);font-family:DM Sans,system-ui,sans-serif}.topbar{position:fixed;top:0;left:0;right:0;height:52px;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:0 1.25rem;background:var(--topbar-bg);border-bottom:1px solid var(--bd);backdrop-filter:blur(12px)}.topbar-left,.topbar-right{display:flex;align-items:center;gap:.6rem}.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none}.logo-text{font-family:Syne,sans-serif;font-size:1.05rem;font-weight:700;background:linear-gradient(90deg,var(--ac),var(--ac2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}[data-theme=light] .topbar{border-bottom-color:#ffffff2e}[data-theme=light] 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var(--bd);display:flex;align-items:center;justify-content:center;color:var(--ac);margin-bottom:.2rem}.fp-title{font-size:1.3rem;font-weight:700;color:var(--tx);letter-spacing:-.01em}.fp-subtitle{font-size:.8rem;color:var(--mu);line-height:1.55;max-width:320px}.fp-zalo{color:#0068ff;font-weight:700}.fp-form{display:flex;flex-direction:column;gap:1rem;padding:1.8rem 2rem 2rem}.fp-field{display:flex;flex-direction:column;gap:.35rem}.fp-label{display:flex;align-items:center;gap:.4rem;font-size:.78rem;font-weight:600;color:var(--mu);text-transform:uppercase;letter-spacing:.04em}.fp-label svg{color:var(--ac);flex-shrink:0}.fp-req{color:var(--er)}.fp-opt{font-size:.7rem;font-weight:400;text-transform:none;color:var(--mu2);letter-spacing:0}.fp-input{width:100%;background:var(--s1);border:1.5px solid var(--bd);border-radius:var(--r);padding:.65rem .9rem;color:var(--tx);font-size:.9rem;font-family:inherit;transition:border-color .15s,box-shadow 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infinite}.fp-links{display:flex;justify-content:center;gap:1.5rem;padding-top:.25rem}.fp-link{display:flex;align-items:center;gap:.35rem;font-size:.8rem;color:var(--ac);text-decoration:none;font-weight:500;transition:opacity .15s}.fp-link:hover{opacity:.75}.fp-link svg{color:var(--mu)}.fp-success{display:flex;flex-direction:column;align-items:center;gap:1rem;padding:2.5rem 2rem;text-align:center}.fp-success-icon{width:72px;height:72px;border-radius:50%;background:#34d3991f;border:2px solid rgba(52,211,153,.3);display:flex;align-items:center;justify-content:center;color:var(--ok)}.fp-success-title{font-size:1.2rem;font-weight:700;color:var(--tx)}.fp-success-msg{font-size:.85rem;color:var(--mu);line-height:1.6}.fp-captcha-box{display:flex;align-items:center;gap:.6rem;background:var(--s3);border:1.5px solid var(--bd);border-radius:var(--r);padding:.6rem 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