File: css/style.css

/* Importing fonts */
@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");

/* Root Variables */
:root {
  --primary-color: #06f;
  --heading-color: #3355FF;
  --border-color: #ddd;
}

/* Common CSS */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Roboto", sans-serif;
}

body {
  background-color: white;
}

/* .container (for responsive) */
.container {
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}
@media (min-width: 768px) {
  .container {
    width: 750px;
  }
}
@media (min-width: 992px) {
  .container {
    width: 970px;
  }
}
@media (min-width: 1200px) {
  .container {
    width: 1200px;
  }
}

/* .btn */
.btn {
  padding: 0.7rem 1.5rem;
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
  border: none;
  outline: none;
  background-color: var(--primary-color);
  color: white;
  font-size: 1rem;
  border-radius: 5px;
  font-weight: 500;
  transition: 0.3s;
}

/*.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}*/

.btn:hover {
  opacity: 0.9;
}

/* Custom file input */
.custom-file {
  background-color: var(--heading-color);
  color: white;
  padding: 0.7rem;
  font-family: sans-serif;
  border-radius: 0.3rem;
  cursor: pointer;
  display: inline-block;
}

#file-chosen {
  margin-left: 0.3rem;
  font-family: sans-serif;
}



/* Main content */
main {
  padding: 4rem 0;
}

/* Form */
.form-wrapper {
  max-width: 500px;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.form-wrapper .form-title {
  font-size: 2rem;
  color: var(--heading-color);
  font-weight: 600;
  margin-bottom: 2rem;
}



/* Progress bar */
.uploading-status {
  margin: 0 auto;
  margin-top: 2rem;
  text-align: left;
  max-width: 220px;
  width: 100%;
}

.progress-bar {
  --height: 15px;
  width: 100%;
  border-radius: 100px;
  border: 2px solid var(--heading-color);
  margin-bottom: 1rem;
  height: var(--height);
  line-height: var(--height);
  position: relative;
  overflow: hidden;
  z-index: 1;
  font-weight: 500;
  font-size: 0.7rem;
  padding: 0 0.3rem;
  text-align: center;
  color: var(--color);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.3s;
}

.progress-bar::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: var(--percent);
  height: 100%;
  background-color: var(--heading-color);
  z-index: -1;
  transition: 0.3s;
}

.uploading-status > ul {
  list-style: none;
}

.uploading-status > ul li {
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.7rem;
}

.uploading-status > ul li strong {
  width: 90px;
  display: inline-block;
}

/* Message box */
/*#message {
  margin-top: 0.3rem;
  text-align: left;
  height: 220px;
  width: 100%;
  display: block;
  border-radius: 0;
  border: 1px solid var(--border-color);
  padding: 0.7rem 1rem;
  resize: vertical;
  outline: none;
}*/

/* .hidden */
/*.hidden {
  display: none;
}*/