:root{--bg:#f4f5f8;--card:#fff;--fg:#1d1f27;--mut:#6b7080;--line:#e3e5ec;--pri:#0f766e;--pri2:#0d5f59;--suave:#eef6f5;--user:#e6f2f0;--err:#b42318;--sombra:0 6px 24px rgba(20,24,40,.07)}
@media (prefers-color-scheme:dark){:root{--bg:#121418;--card:#1b1e24;--fg:#e8eaf0;--mut:#9aa0ad;--line:#2b2f38;--pri:#2bb3a6;--pri2:#25998e;--suave:#1f2a2a;--user:#1e2b2a;--err:#f97066;--sombra:0 6px 24px rgba(0,0,0,.3)}}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--pri)}button,input,textarea,select{font:inherit;color:inherit}
.btn{background:var(--pri);color:#fff;border:0;border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer}.btn:hover{background:var(--pri2)}.btn:disabled{opacity:.5;cursor:default}
.btn.sec{background:transparent;color:var(--fg);border:1px solid var(--line)}.btn.sec:hover{background:var(--suave)}
.enlace{background:none;border:0;color:var(--pri);cursor:pointer;padding:4px}
input,textarea,select{width:100%;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:none}
input:focus,textarea:focus{border-color:var(--pri);box-shadow:0 0 0 3px color-mix(in srgb,var(--pri) 20%,transparent)}
label{display:block;font-weight:600;font-size:14px;margin:0 0 12px}label input{margin-top:5px;font-weight:400}
.error{color:var(--err);font-size:14px}
.caja{max-width:380px;margin:9vh auto;padding:28px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sombra)}
.caja h1{margin:0 0 4px;font-size:22px}.caja p.sub{margin:0 0 20px;color:var(--mut);font-size:14px}.caja .btn{width:100%;margin-top:6px}
.marca{display:flex;align-items:center;gap:10px;font-weight:800}.marca i{width:30px;height:30px;border-radius:9px;background:var(--pri);color:#fff;display:grid;place-items:center;font-style:normal;font-size:14px}
@media (max-width:480px){.caja{margin:0;min-height:100%;border-radius:0;border:0}}

body.entrada{background:radial-gradient(1200px 600px at 10% -10%,color-mix(in srgb,var(--pri) 22%,transparent),transparent),radial-gradient(900px 500px at 110% 110%,color-mix(in srgb,#14b8a6 18%,transparent),transparent),var(--bg)}
body.entrada .caja{border-radius:24px;padding:32px 28px}
body.entrada .marca i{width:44px;height:44px;border-radius:14px;font-size:20px;background:linear-gradient(135deg,#0f766e,#14b8a6);box-shadow:0 8px 20px rgba(15,118,110,.35)}
body.entrada .btn{background:linear-gradient(135deg,#0f766e,#14b8a6);padding:13px;border-radius:14px;font-size:16px}
body.entrada input{padding:12px 14px;border-radius:12px;font-size:16px}
@media (max-width:480px){body.entrada .caja{margin:0;min-height:100dvh;border-radius:0;display:flex;flex-direction:column;justify-content:center}}