* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #f4f6f8;
    background:
        radial-gradient(circle at 50% 12%, rgba(74, 177, 140, .12), transparent 32%),
        #0d1014;
}
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
    position: relative;
    width: min(440px, 100%);
    padding: 34px;
    border: 1px solid #29303a;
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(24, 28, 35, .98), rgba(17, 21, 27, .98));
    box-shadow: 0 30px 90px rgba(0, 0, 0, .42);
}
.login-theme { position:absolute; top:24px; right:24px; min-height:34px; margin:0; padding:7px 10px; border:1px solid #343c48; background:#171c23; color:#dce2e9; font-size:12px; }
html[data-theme="light"] body { background:radial-gradient(circle at 50% 12%,rgba(74,177,140,.12),transparent 32%),#f3f6fa !important; }
html[data-theme="light"] .login-card { background:#fff; border-color:#d9e0e9; box-shadow:0 24px 70px rgba(34,48,69,.12); }
html[data-theme="light"] .login-theme { background:#f7f9fc; border-color:#cfd7e2; color:#152033; }
.login-brand { display: flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.login-brand span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: #f1c40f; color: #111; letter-spacing: 0; }
.login-kicker { margin-top: 34px; color: #667180; font-size: 10px; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
h1 { margin: 8px 0 6px; font-size: 30px; }
p { margin: 0 0 24px; color: #929caa; line-height: 1.5; }
form { display: grid; gap: 15px; }
label { display: grid; gap: 7px; }
label > span { color: #aab3bf; font-size: 12px; font-weight: 750; }
label small { color: #657080; font-weight: 500; }
input {
    width: 100%; min-height: 46px; padding: 10px 12px;
    border: 1px solid #343c48; border-radius: 9px;
    background: #11151b; color: #f4f6f8; font-size: 15px; outline: none;
}
input:focus { border-color: rgba(241, 196, 15, .7); box-shadow: 0 0 0 3px rgba(241, 196, 15, .08); }
button {
    min-height: 47px; margin-top: 4px; border: 0; border-radius: 9px;
    background: #f1c40f; color: #111; font-weight: 850; cursor: pointer;
}
button:disabled { opacity: .6; cursor: wait; }
.login-error { min-height: 18px; color: #ff7180; font-size: 12px; }
.login-security { margin-top: 24px; padding-top: 18px; border-top: 1px solid #272d36; color: #626d7a; font-size: 11px; text-align: center; }
.login-hidden { display: none; }
@media (max-width: 520px) { .login-card { padding: 25px 20px; } }