* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f5f5f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

footer {
    margin-top: auto;
}

/* HEADER */
header {
    background-color: #1a3a6e;
    color: white;
    padding: 12px 0;
}

header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    color: white;
}

/* NAVBAR */
.simple-navbar {
    background-color: #ffffff;
    border-bottom: 1px solid #ddd;
}

.simple-navbar .nav-link {
    color: #1a3a6e !important;
    font-weight: 500;
}

.simple-navbar .nav-link:hover {
    text-decoration: underline;
}

/* SECCIONES (reemplaza las cards) */
.seccion {
    background-color: #ffffff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.seccion h5 {
    color: #1a3a6e;
    font-weight: 600;
    margin-bottom: 15px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}

/* FORMULARIOS */
.form-label {
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.form-control {
    border-radius: 6px;
    font-size: 14px;
    border: 1px solid #ccc;
}

.form-control:focus {
    border-color: #1a3a6e;
    box-shadow: 0 0 0 0.15rem rgba(26, 58, 110, 0.2);
}

/* BOTONES */
.btn-primary {
    background-color: #1a3a6e;
    border: none;
    border-radius: 6px;
}

.btn-primary:hover {
    background-color: #142e58;
}

/* RESULTADOS */
.resultado {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 10px;
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-all;
    display: none;
}

.resultado.visible {
    display: block;
}

/* TABLA */
.table {
    background-color: #fff;
    font-size: 14px;
}

.table thead {
    background-color: #1a3a6e;
    color: white;
}

.table-hover tbody tr:hover {
    background-color: #eef2fa;
}

/* LOGO */
.LogoUpsin {
    max-width: 10%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.img-fluid {
    max-width: 30%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* FOOTER */
footer {
    background-color: #1a3a6e;
    color: #ccc;
    font-size: 13px;
    padding: 15px 0;
}

/* HEADER DE SECCIÓN (título + botón limpiar) */
.seccion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
}

.seccion-header h5 {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

/* BOTÓN LIMPIAR */
.btn-limpiar {
    background-color: transparent;
    border: 1px solid #aaa;
    color: #666;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 6px;
}

.btn-limpiar:hover {
    background-color: #f0f0f0;
    color: #333;
}