:root {
    --link: #3c72e0;
    --text: #454545;
    --element: #808080;
    --element-hover: #f0f0f0;
    --width: 680px;
    --radius: 4px;
}
@font-face {
    font-family: 'Balsamiq Sans';
    src: url('../fonts/regular.ttf') format('woff2');
    font-weight: 400;
    font-style: normal;
}
@font-face {
    font-family: 'Balsamiq Sans';
    src: url('../fonts/italic.ttf') format('woff2');
    font-weight: 400;
    font-style: italic;
}
@font-face {
    font-family: 'Balsamiq Sans';
    src: url('../fonts/bold.ttf') format('woff2');
    font-weight: 600;
    font-style: normal;
}
body {
    margin: auto;
    max-width: var(--width);
    position: relative;
    text-align: center;
    font-family: "Balsamiq Sans", sans-serif;
    color: var(--text);
    padding: 5px;
}
hr {
    margin: 20px 0;
    height: 0.1em;
    border: 0;
    background-color: var(--element);
}
.img-container {
    position:relative;
    width: 100%;
    aspect-ratio: 13 / 7;
    overflow: hidden;
    border: 1px solid var(--element);
    border-radius: var(--radius);
    box-shadow: 0 0 6px var(--element-hover);
}
figure {
    margin: auto;
    max-width: var(--width);
    text-align: center;
}
figure img {
    width: 100%;
    height: auto;
}
.img-container-continuation {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 36px;
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 100%)
}
article {
    margin: 5px;
}
article h1 {
    font-size: 1.75em;
}
article p {
    text-align: left;
    font-size: 18px;
    line-height: 1.8;
}
article form {
    text-align: left;
    font-size: 18px;
}
article form label {
    display: inline-block;
    margin-top: 10px;
    margin-left: 5px;
}
article form input, textarea, button {
    font-family: "Balsamiq Sans", sans-serif;
    height: 36px;
    width: 100%;
    font-size: 18px;
    color: var(--text);
    line-height: 1.4;
    border: 1px solid var(--element);
    border-radius: var(--radius);
    padding-left: 5px;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    margin-top: 6px;
}
#invoice {
    align-items: center;
    margin-bottom: 10px;
    border: 1px solid var(--element);
    padding: 15px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    text-align: center;
    box-shadow: 0 0 6px var(--element-hover);
    background-color: #fcfcfc;
}
article form button {
    display: inline;
    cursor: pointer;
    font-weight: bold;
}
input[type=number] {
    -moz-appearance: textfield;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
textarea {
    min-height: 2lh;
    field-sizing: content;
}
.control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}
article button {
    margin: 0;
    width: auto;
    cursor: pointer;
    padding: 4px 15px;
    height: max-content;
    border-bottom-width: 2px;
    background-color: var(--element-hover);
}
#options {
    display: block;
    text-align: center;
}
.prices {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
}
.prices input {
    margin: 0;
}
summary {
    font-weight: bold;
    cursor: pointer;
    padding: 12px;
    border: 1px solid var(--element);
    border-radius: var(--radius);
    background-color: var(--element-hover);
    margin-top: 10px;
    list-style: none;
    position: relative;
    text-align: left;
}
summary::after {
    content: '+';
    font-weight: normal;
    position: absolute;
    right: 20px;
}
details[open] summary::after {
    content: '-';
}
details p {
    padding: 10px 18px;
    border-left: 1px solid var(--element);
    border-right: 1px solid var(--element);
    border-bottom: 1px solid var(--element);
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
    margin-top: 0;
}