/* ============================================================ VARIABLES DE COLOR ============================================================ */
:root {
    --primary-color: #005689;
    --primary-2-color: #0078aa;
    --secondary-color: #ed9b00;
    --gray: #767676;
    --down-gray: #ebebeb;
    --color-black: #000000;
    --color-white: #ffffff;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--down-gray);
    font-family: 'Nunito Sans', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}


header {
    width: 100%;
    padding: 1rem;
    background-color: var(--color-white);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

header.main-header {
    position: relative;
    width: 100%;
    padding: 1rem 2rem;
    background-color: var(--color-white);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    max-width: 280px;
    height: auto;
}

.logout-btn {
    background-color: var(--primary-color);
    border: transparent;
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s ease;
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.logout-btn:hover {
    background-color: var(--secondary-color);
    color: var(--color-white);
    transform: translateY(-50%) scale(1.05);
}

/* ============================TÍTULO============================ */
h1 {
    text-align: center;
    background-color: var(--primary-color);
    color: var(--color-white);
    padding: 20px;
    margin: 0;
}

/* ============================FORMULARIO============================ */
form {
    width: 95%;
    max-width: 1100px;
    margin: 30px auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ============================GRUPOS============================ */
.grupo {
    background-color: var(--color-white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.grupo h3 {
    background-color: var(--primary-2-color);
    color: var(--color-white);
    padding: 12px;
    border-radius: 8px 8px 0 0;
    margin: -20px -20px 20px -20px;
    font-size: 16px;
    text-align: center;
}

/* ===========================LOGO============================ */
.logo {
    padding-top: 20px;
    display: block;
    margin: 0 auto 20px auto;
    max-width: 250px;
    height: auto;
}
/* ============================FILAS Y CAMPOS============================ */
.fila {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.campo {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.campo label {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 5px;
}

.campo input,
.campo select {
    padding: 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--down-gray);
    font-size: 14px;
}

/* FOCUS */
.campo input:focus,
.campo select:focus {
    outline: none;
    border-color: var(--primary-2-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 170, 0.2);
}

/* ============================BOTONES============================ */
button {
    background-color: var(--primary-2-color);
    color: var(--color-white);
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.3s;
    width: fit-content;
}

button:hover {
    background-color: var(--secondary-color);
}

form > button {
    align-self: center;
    margin-top: 10px;
}

form {
    max-width: 900px;
}


button:disabled {
    background-color: var(--gray);
    cursor: not-allowed;
}

/*===============================BOTÓN VOLVER===============================*/
.btn-volver {
    align-self: flex-start;
    margin: 15px 15px;
}



/* ============================RESPONSIVE============================ */
@media (max-width: 1024px) {
    .fila {
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .fila {
        flex-direction: column;
    }

    button {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 18px;
        padding: 15px;
    }

    .grupo h3 {
        font-size: 14px;
    }

    .campo label {
        font-size: 12px;
    }

    .campo input,
    .campo select {
        font-size: 13px;
    }
}