*{box-sizing:border-box;margin:0;padding:0}
body{min-height:100vh;background:linear-gradient(135deg,#312e81 0%,#4f46e5 50%,#7c3aed 100%);
     display:flex;align-items:center;justify-content:center;
     font-family:'Segoe UI',system-ui,-apple-system,sans-serif}
.box{background:#fff;border-radius:28px;padding:52px 40px;max-width:380px;width:calc(100% - 2rem);
     text-align:center;box-shadow:0 32px 80px rgba(0,0,0,.3)}
.ico{font-size:4rem;margin-bottom:1.25rem;display:block}
h1{font-size:1.75rem;font-weight:800;color:#1e293b;margin-bottom:.5rem;letter-spacing:-.02em}
.sub{color:#64748b;margin-bottom:2rem;font-size:.95rem;line-height:1.5}
input[type=text],input[type=password]{width:100%;padding:15px;border:2px solid #e2e8f0;border-radius:14px;
   font-size:1.1rem;outline:none;transition:.2s;color:#1e293b;margin-bottom:.75rem}
input[type=text]{text-align:left;letter-spacing:normal}
input[type=password]{text-align:center;letter-spacing:6px}
input:focus{border-color:#4f46e5;box-shadow:0 0 0 4px rgba(79,70,229,.1)}
.remember{display:flex;align-items:center;gap:.5rem;font-size:.875rem;color:#64748b;
          text-align:left;margin-bottom:.25rem;cursor:pointer;user-select:none}
.remember input{width:auto;margin:0}
button{margin-top:1rem;width:100%;padding:15px;
       background:linear-gradient(135deg,#4f46e5,#7c3aed);
       color:#fff;border:none;border-radius:14px;font-size:1rem;font-weight:700;
       cursor:pointer;transition:.2s;letter-spacing:.02em}
button:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(79,70,229,.4)}
.msg-err{margin-top:1rem;color:#dc2626;font-size:.875rem;font-weight:600;
         background:#fef2f2;border-radius:8px;padding:.6rem 1rem}
.msg-lock{margin-top:1rem;color:#92400e;font-size:.875rem;font-weight:600;
          background:#fffbeb;border-radius:8px;padding:.6rem 1rem}