:root{
  --red:#AB2A25; --red-d:#8E201C; --ink:#0C0C0C; --ink-2:#3A3A3A; --ink-3:#767676;
  --line:#E6E4E2; --bg:#F5F5F4;
  --h:"Archivo",-apple-system,sans-serif; --b:"Inter",-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--b);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.shell{min-height:100svh;display:grid;grid-template-columns:1.05fr .95fr;padding:14px;gap:14px}
@media(max-width:900px){.shell{grid-template-columns:1fr;padding:10px;gap:10px}}
.brandside{background:var(--red);color:#fff;border-radius:18px;padding:clamp(24px,3.4vw,46px);
  display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;min-height:260px}
.brandside img.logo{width:min(320px,68%)}
.brandside .pic{margin:26px 0;border-radius:12px;overflow:hidden;aspect-ratio:16/8.4}
.brandside .pic img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05)}
.brandside h2{font-family:var(--h);font-weight:800;font-size:clamp(24px,3.2vw,40px);letter-spacing:-.035em;line-height:1.02}
.brandside p{color:rgba(255,255,255,.82);font-size:14.5px;margin-top:12px;max-width:380px}
@media(max-width:900px){.brandside .pic{display:none}.brandside{min-height:0;padding:20px}.brandside h2{font-size:22px}.brandside p{font-size:13.5px;margin-top:8px}}

.formside{background:#fff;border:1px solid var(--line);border-radius:18px;display:flex;align-items:center;justify-content:center;padding:clamp(22px,3vw,40px)}
.card{width:100%;max-width:400px}
.kick{font-family:var(--h);font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.card h1{font-family:var(--h);font-weight:800;font-size:clamp(26px,3.4vw,36px);letter-spacing:-.035em;line-height:1.02}
.card .sub{color:var(--ink-3);font-size:14.5px;margin-top:8px}
.fld{display:block;margin-top:18px}
.fld span{display:block;font-family:var(--h);font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:7px}
.fld input,.fld select{width:100%;padding:14px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:16px;font-family:var(--b)}
.fld input:focus,.fld select:focus{outline:2px solid var(--red);outline-offset:1px;border-color:var(--red)}
.otp{display:flex;gap:8px}
.otp input{text-align:center;font-family:var(--h);font-weight:700;font-size:20px;letter-spacing:.1em;padding:14px 6px}
.go{width:100%;margin-top:22px;padding:15px;border:2px solid var(--red);border-radius:10px;background:var(--red);color:#fff;
  font-family:var(--h);font-weight:700;font-size:15px;cursor:pointer;transition:background .2s,border-color .2s}
.go:hover{background:var(--red-d);border-color:var(--red-d)}
.err{display:none;margin-top:14px;padding:11px 13px;border-radius:9px;background:#FBE3E2;border:1px solid #F0C9C7;color:#7A1A17;font-size:13.5px}
.err.on{display:block}
.hint{margin-top:20px;padding:14px;border:1px dashed var(--line);border-radius:10px;background:var(--bg);font-size:13px;color:var(--ink-2)}
.hint b{font-family:var(--h);font-weight:700;color:var(--ink);display:block;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:7px;color:var(--ink-3)}
.hint code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#fff;border:1px solid var(--line);border-radius:5px;padding:2px 6px;font-size:12.5px}
.alt{margin-top:18px;font-size:13.5px;color:var(--ink-3);display:flex;gap:14px;flex-wrap:wrap}
.alt a{color:var(--red);font-weight:600}
.alt a:hover{text-decoration:underline}