* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    background: #ffffff;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
}

.login-panel {
    width: 490px;
    max-width: calc(100% - 40px);
    margin: 70px auto 0;
    padding: 40px 34px 36px;
    background: #ffffff;
    border: 1px solid #dfe3e8;
    border-radius: 14px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
}

.login-panel h2 {
    margin: 0 0 34px;
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    color: #17365d;
}

.login-panel form {
    display: flex;
    flex-direction: column;
}

.login-panel label {
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #17365d;
}

.login-panel input {
    width: 100%;
    height: 50px;
    margin-bottom: 22px;
    padding: 0 15px;
    border: 1px solid #cbd5df;
    border-radius: 9px;
    background: #ffffff;
    color: #1f2937;
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.login-panel input:focus {
    border-color: #be1e2d;
    box-shadow: 0 0 0 3px rgba(190, 30, 45, 0.10);
}

.login-panel input:invalid {
    border-color: #cbd5df;
    box-shadow: none;
}

.login-panel button {
    width: 100%;
    height: 50px;
    margin-top: 4px;
    border: 0;
    border-radius: 9px;
    background: #be1e2d;
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.login-panel button:hover {
    background: #a81725;
}

.login-panel button:active {
    transform: scale(0.99);
}

.mensaje-error {
    margin-bottom: 22px;
    padding: 13px 15px;
    border: 1px solid #f1b6bc;
    border-radius: 8px;
    background: #fff1f2;
    color: #b42318;
    font-size: 14px;
    line-height: 1.45;
    text-align: center;
}

.alerta-seguridad {
    margin-bottom: 22px;
    padding: 15px;
    border: 1px solid #f0c36d;
    border-radius: 8px;
    background: #fff8e6;
    color: #7a4b00;
    font-size: 14px;
    line-height: 1.5;
    text-align: center;
}

.camara-seguridad {
    display: none;
    width: 100%;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid #e5e7eb;
}

.camara-seguridad.activa {
    display: block;
}

.camara-seguridad video {
    display: block;
    width: 100%;
    max-height: 260px;
    object-fit: cover;
    border-radius: 10px;
    background: #111827;
}

.boton-camara {
    width: 100%;
    height: 44px;
    margin-top: 12px;
    border: 1px solid #be1e2d;
    border-radius: 8px;
    background: #ffffff;
    color: #be1e2d;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

.boton-camara:hover {
    background: #fff5f6;
}

@media (max-width: 600px) {
    .login-panel {
        margin-top: 35px;
        padding: 30px 22px;
    }

    .login-panel h2 {
        font-size: 25px;
    }
}