:root {
    --background-blue: #2266ff;
    --accent-blue: #0033aa;
    --light-blue: #7799ff;
    --button-yellow: #eebb55;
    --button-hover: #ffdd77;
}

body {
    background-color: var(--background-blue);
    color: white;
}

.center {
    margin: auto;
    width: 85%;
    max-width: 600px;
    text-align: center;
    align-items: center;
}

hr {
    max-width: 700px;
}

#buttons {
    margin-top:50px;
}

.button {
    margin-top: 10px;
    width: 100%;
    padding: 10px;
    background-color: var(--button-yellow);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    border-radius: 8px;
    font-weight: bold;
}

@media (min-width: 768px) {
    .button {
        margin-top: 0;
        margin-left: 25px;
        margin-right: 25px;
        width: 35%;
    }
}

#pin-note {
    font-style: italic;
    font-weight: bold;
}

#register-form {
    margin-top: 10px;
}

label {
    text-align: left;
    width: 100%;
    padding-top: 10px;
    display: block;
}

input[type=text], input[type=number], select {
    width: 100%;
    padding: 12px 20px;
    margin-top: 5px;
    margin-bottom: 5px;
    display: block;
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    box-sizing: border-box;
}

input[type=checkbox]:checked {
    color: var(--button-yellow);
}

input[type=submit] {
    margin: 10px 0;
    width: 100%;
    cursor: pointer;
}

input[type=submit] {
    padding: 10px;
    background-color: var(--button-yellow);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    border-radius: 8px;
    font-weight: bold;
}

input[type=submit]:hover {
    background-color: var(--button-hover);
}

.container {
    background-color: white;
    padding: 10px;
    border: 2px solid var(--accent-blue);
    border-radius: 8px;
    margin-top: 20px
}

#error-container {
    display: none;
    color: red;
    font-weight: bold;
}

#success-container {
    display: none;
    font-weight: bold;
    color: var(--accent-blue);
}

.scroll-pin {
    position: sticky;
    top: 0;
    background-color: var(--background-blue);
    z-index: 100;
}

.check-container {
    display: block;
    position: relative;
    width: 40%;
    padding-left: 25px;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.book-check {
    position: absolute;
    top: 3px;
    left: 3px;
    height: 14px;
    width: 14px;
}

.chapter-check {
    position: absolute;
    top: 9px;
    left: 0;
    height: 14px;
    width: 14px;
}

.chapter {
    margin-left: 5px;
}

.last-chapter {
    width: 100%;
    height: 10px;
}

/* Style the button that is used to open and close the collapsible content */
.collapsible-button {
    background-color: var(--accent-blue);
    color: white;
    cursor: pointer;
    padding: 5px 10px 5px 30px;
    width: 100%;
    text-align: left;
    outline: none;
    border: 1px solid white;
}

.collapsible-button:after {
     content: '+';
     font-size: 13px;
     color: white;
     float: right;
     margin-left: 5px;
 }

.active:after {
    content: "-";
}

/* Style the collapsible content. Note: hidden by default */
.collapsible-content {
    padding: 0 10px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}

#timeline-wrapper {
    width: 100%;
}

#timeline-container {
    text-align: left;
    padding-top: 10px;
}

#progress-container {
    text-align: left;
    padding-top: 10px;
}

.days-display {
    text-align: left;
    width: 100%;
    padding-top: 10px;
    padding-left: 10px;
    display: block;
    font-weight: bold;
    margin-bottom: 4px;
}

.bar-container {
    height: 20px;
    width: 100%;
    background-color: var(--light-blue);
    border-radius: 2px;
    border-color: black;
    border-style: solid;
    border-width: 1px;
    margin-bottom: 20px;
    padding: 1px;
}

.timeline-bar {
    height: 20px;
    background-color: var(--accent-blue);
    border-radius: 2px;
}

.name-display {
    text-align: left;
    width: 100%;
    padding-top: 10px;
    padding-left: 10px;
    display: block;
    font-weight: bold;
    margin-bottom: 4px;
}

.progress-bar {
    height: 20px;
    background-color: var(--button-yellow);
    border-radius: 2px;
}