/* ================================
   VARIABLES (MISMAS)
================================ */
:root {
    --fst-gn-clr: #3A493A;
    --scd--gn-clr: #616d61;
    --bg-clr: #fff;
    --bg-lw-clr: #F0F2F5;
    --box-sh-clr: #00000030;
    --white-clr: #fff;
    --gray-clr: #666;
    --14px: 0.875rem;
}

/* ================================
   RESET
================================ */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'poppins', sans-serif;
}

main{
    width: 100%;
    height: 100vh;
    background-color: var(--bg-lw-clr);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* CONTENEDOR GENERAL CENTRADO */
.login-container{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}

/* LOGO PRINCIPAL GRAN NAYAR */
.hotel-logo{
    text-align: center;
}

.hotel-logo img{
    width: 210px;
    margin-bottom: 10px;
}

.hotel-logo h1{
    font-size: 2rem;
    font-weight: 600;
    color: var(--fst-gn-clr);
}

.hotel-logo p{
    font-size: 1rem;
    letter-spacing: 3px;
    color: var(--scd--gn-clr);
}

/* ================================
   TARJETA LOGIN
================================ */
.login-card{
    width: 360px;
    background: var(--bg-clr);
    padding: 35px 30px;
    border-radius: 14px;
    box-shadow: 0 4px 20px var(--box-sh-clr);
    animation: fadeIn .5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px);}
    to { opacity: 1; transform: translateY(0);}
}

/* TÍTULO DEL LOGIN */
.login-title{
    text-align: center;
    font-size: 1.4rem;
    color: var(--fst-gn-clr);
    margin-bottom: 25px;
}

/* ================================
   FORMULARIO
================================ */
.input-group{
    margin-bottom: 18px;
}

.input-group label{
    display: block;
    margin-bottom: 5px;
    font-size: var(--14px);
    color: var(--fst-gn-clr);
}

.input-group input{
    width: 100%;
    height: 40px;
    border: 1.6px solid var(--fst-gn-clr);
    border-radius: 6px;
    padding: 6px 10px;
    outline: none;
    transition: .2s;
}

.input-group input:focus{
    border-color: var(--scd--gn-clr);
    box-shadow: 0 0 0 3px #3a493a32;
}

/* BOTÓN */
.btn-submit{
    width: 100%;
    height: 42px;
    background: var(--fst-gn-clr);
    color: var(--white-clr);
    border-radius: 6px;
    border: 1.6px solid var(--fst-gn-clr);
    cursor: pointer;
    transition: .2s;
}

.btn-submit:hover{
    background: var(--bg-clr);
    color: var(--fst-gn-clr);
}

/* FOOTER */
.login-footer{
    margin-top: 15px;
    text-align: center;
    font-size: 12px;
    color: var(--gray-clr);
}
.error-message{
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 18px;
    background-color: #ffefef;
    border: 1px solid #d99;
    color: #a11;
    font-size: 0.85rem;
    border-radius: 6px;
    text-align: center;
}