body.auth-body {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: radial-gradient(circle at 15% 20%, rgba(91,95,239,0.16), transparent 45%),
                radial-gradient(circle at 85% 80%, rgba(16,185,129,0.14), transparent 45%),
                var(--bg);
    padding: 20px;
}
.auth-wrap { width: 100%; max-width: 400px; }
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 26px; }
.auth-brand .logo-mark { width: 48px; height: 48px; border-radius: 14px; font-size: 20px; }
.auth-brand h1 { font-size: 17px; font-weight: 800; margin: 0; }
.auth-brand p { font-size: 12.5px; color: var(--text-muted); margin: 0; }
.auth-card {
    background: var(--surface-glass); backdrop-filter: blur(16px);
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); padding: 28px;
}
.auth-card h2 { font-size: 18px; font-weight: 700; margin: 0 0 4px; }
.auth-card .auth-sub { font-size: 12.5px; color: var(--text-muted); margin: 0 0 22px; }
.auth-footer-link { text-align: center; margin-top: 18px; font-size: 12.5px; color: var(--text-muted); }
.auth-footer-link a { color: var(--primary); font-weight: 600; }
.auth-alert {
    display: flex; gap: 8px; align-items: flex-start; padding: 11px 13px; border-radius: 10px;
    font-size: 12.5px; margin-bottom: 16px; font-weight: 500;
}
.auth-alert.error { background: var(--danger-light); color: var(--danger); }
.auth-alert.success { background: var(--success-light); color: var(--success); }
.auth-alert svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 1px; }
.password-field { position: relative; }
.password-toggle { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-faint); padding: 4px; }
.remember-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.remember-row .checkbox-row { font-size: 12.5px; color: var(--text-muted); }
.remember-row a { font-size: 12.5px; color: var(--primary); font-weight: 600; }
.demo-creds { margin-top: 18px; padding: 10px 12px; background: var(--primary-light); border-radius: 10px; font-size: 11.5px; color: var(--primary-dark); }
[data-theme="dark"] .demo-creds { color: #B9BCFF; }
.theme-toggle-float { position: fixed; top: 20px; right: 20px; }