/*! HTML5 Boilerplate v8.0.0 | MIT License | https://html5boilerplate.com/ */
/* main.css 2.1.0 | MIT License | https://github.com/h5bp/main.css#readme */


/*
 * What follows is the result of much research on cross-browser styling.
 * Credit left inline and big thanks to Nicolas Gallagher, Jonathan Neal,
 * Kroc Camen, and the H5BP dev community and team.
 */


/* ==========================================================================
   Base styles: opinionated defaults
   ========================================================================== */

html {
  color: #222;
  font-size: 20px;
  line-height: 1.2;
}


/*
 * Remove text-shadow in selection highlight:
 * https://twitter.com/miketaylr/status/12228805301
 *
 * Vendor-prefixed and regular ::selection selectors cannot be combined:
 * https://stackoverflow.com/a/16982510/7133471
 *
 * Customize the background color to match your design.
 */

::-moz-selection {
  background: hsl(200, 10%, 60%);
  text-shadow: none;
  color: #222;
}

::selection {
  background: hsl(200, 10%, 60%);
  text-shadow: none;
  color: #222;
}


/*
 * A better looking default horizontal rule
 */

hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0;
}


/*
 * Remove the gap between audio, canvas, iframes,
 * images, videos and the bottom of their containers:
 * https://github.com/h5bp/html5-boilerplate/issues/440
 */

audio,
canvas,
iframe,
img,
svg,
video {
  vertical-align: middle;
}


/*
 * Remove default fieldset styles.
 */

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}


/*
 * Allow only vertical resizing of textareas.
 */

textarea {
  resize: vertical;
}


/* ==========================================================================
   Author's custom styles
   ========================================================================== */

* {
  --fonte-texto: 'IBM Plex Sans', sans-serif;
  --fonte-titulo: 'Fira Sans', serif;
  text-rendering: optimizeLegibility;


  --cor-link-primaria:   hsla(190, 100%, 25%, 1.0);
  --cor-link-secundaria: hsla(190, 100%, 50%, 0.5);
  --cor-link-terciaria:  hsla(190, 100%, 25%, 0.75);
}

body {
  background: linear-gradient(hsl(210 20% 15% / 1) 0%,
                              hsl(210 10% 8% / 1) 100%),
              url("../img/tile_bg_qcupdc.png");
  background-size: auto, 50px;
  background-repeat: no-repeat, repeat;
  background-position: center center;
  background-attachment: fixed;
  background-blend-mode: screen;
  font-size: 1rem;
  font-family: var(--fonte-texto);
}

.pagina {
  padding-bottom: 30px;
  margin-bottom: 50px;
}

h1,
h2,
h3 {
  font-family: var(--fonte-titulo);
  margin-top: 1.2em;
  margin-bottom: 0.6em;
}

h1 {
  font-weight: bold;
  text-align: center;
  margin: 0;
}

p {
  margin: 0;
  padding: 0;
}

p + p {
  margin-top: 12px;
}

.saudacao {
  margin: 1rem;
  margin-top: 0;
  text-align: center;
  color: #ffffff;
  font-size: 120%;
}

a {
  color: var(--cor-link-primaria);
  background-color: none;
  text-decoration: underline 1px solid;
  text-underline-offset: 3px;
  text-decoration-color:  var(--cor-link-secundaria);
  transition: color 0.3s ease,
              background-color 0.3s ease;
}

a:hover {
  background-color: var(--cor-link-secundaria);
  text-decoration: none;
  text-underline-offset: 3px;
}

a:active {
  color: white;
  background-color: var(--cor-link-terciaria);
}

.logo-header {
  text-align: center;
  margin: 50px;
}

.logo-header a,
.logo-header a:hover,
.logo-header a:active {
  text-decoration: none;
  background-color: transparent;
}

.logo {
  width: 100%;
  max-width: 300px;
  margin: 0;
}

.conteudo {
  padding: 1rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  background-color: white;
  margin-top: 25px;
}

.home {
  background: none;
  padding: 0;
}

.conteudo h1 {
  margin-bottom: 0.5em;
}


.copyright {
  position: relative;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 25px;
  color: #808080;
  text-align: center;
  font-size: 75%;
}

.erro {
  text-align: center;
  color: white;
}

del {
  text-decoration-thickness: 1px;
}

@import url('https://fonts.googleapis.com/css2?family=Fira+Sans:ital,wght@0,400;0,700;1,400;1,700&family=IBM+Plex+Sans:ital,wght@0,400;0,700;1,400;1,700&display=swap');


.logo-header {
  margin: 0;
}

.logo-livro {
  width: 550px;
  max-width: 80%;
  margin: 25px;
}

.apresentacao-livro {
  font-size: 150%;
  margin: 20px;
}

.conteudo {
  background-color: white;
  margin-top: 50px;
}

.formatos {
  margin: 20px 0;
  display: flex;
  flex-flow: row wrap;
  align-items: stretch;
  gap: 10px;
}

.formato {
  flex: 1 1 40%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding: 10px;
  padding-top: 120px;
}

.pdf {
  background-image: linear-gradient(180deg, hsla(205, 70%, 85%, 0.0) 25%, hsla(205, 70%, 85%, 0.9) 50%), url("/img/livro_pdf.jpg") ;
}

.web {
  background-image: linear-gradient(180deg, hsla(205, 70%, 85%, 0.0) 25%, hsla(205, 70%, 85%, 0.9) 50%), url("/img/livro_web.jpg") ;
}

@media only screen and (max-width: 700px) {
  .formato {
    flex: 0 1 100%;
  }
}

.indisponivel {
  cursor: not-allowed;
}

.formato a {
  display: block;
  text-align: center;
  background: hsl(205, 90%, 25%);
  padding: 5px;
  margin: 10px 0 5px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.formato a:hover {
  background: hsl(205, 90%, 50%);
}

.formato a.indisponivel {
  display: block;
  text-align: center;
  background: hsl(205, 0%, 50%);
  padding: 5px;
  margin: 10px 0 5px;
  color: #333;
  text-decoration: none;
  font-style: italic;
  transition: all 0.3s ease;
}

.formato a.indisponivel:hover {
  background: hsl(205, 0%, 75%);
}


.formato h3 {
  margin: 0;
  font-family: var(--fonte-titulo);
}

li + li {
  margin-top: 10px;
}

.leitor-pdf {
  margin: 25px 0;
}

details {
  margin: 1em 0;
}

summary {
  font-weight: 700;
  font-family: var(--fonte-titulo);
  margin: 0.5em 0;
}

/* ==========================================================================
   Helper classes
   ========================================================================== */


/*
 * Hide visually and from screen readers
 */

.hidden,
[hidden] {
  display: none !important;
}


/*
 * Hide only visually, but have it available for screen readers:
 * https://snook.ca/archives/html_and_css/hiding-content-for-accessibility
 *
 * 1. For long content, line feeds are not interpreted as spaces and small width
 *    causes content to wrap 1 word per line:
 *    https://medium.com/@jessebeach/beware-smushed-off-screen-accessible-text-5952a4c2cbfe
 */

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
  /* 1 */
}


/*
 * Extends the .sr-only class to allow the element
 * to be focusable when navigated to via the keyboard:
 * https://www.drupal.org/node/897638
 */

.sr-only.focusable:active,
.sr-only.focusable:focus {
  clip: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  position: static;
  white-space: inherit;
  width: auto;
}


/*
 * Hide visually and from screen readers, but maintain layout
 */

.invisible {
  visibility: hidden;
}


/*
 * Clearfix: contain floats
 *
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    `contenteditable` attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that receive the `clearfix` class.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */

.clearfix::before,
.clearfix::after {
  content: " ";
  display: table;
}

.clearfix::after {
  clear: both;
}


/* ==========================================================================
   EXAMPLE Media Queries for Responsive Design.
   These examples override the primary ('mobile first') styles.
   Modify as content requires.
   ========================================================================== */

   @media only screen and (max-width: 1000px) {
    .conteudo {
      margin-left: 20px;
      margin-right: 20px;
    }
  }

   @media only screen and (max-width: 700px) {
    .conteudo {
      margin-left: 10px;
      margin-right: 10px;
    }
  }



@media only screen and (min-width: 35em) {
  /* Style adjustments for viewports that meet the condition */
}

@media print,
(-webkit-min-device-pixel-ratio: 1.25),
(min-resolution: 1.25dppx),
(min-resolution: 120dpi) {
  /* Style adjustments for high resolution devices */
}


/* ==========================================================================
   Print styles.
   Inlined to avoid the additional HTTP request:
   https://www.phpied.com/delay-loading-your-print-css/
   ========================================================================== */

@media print {
  *,
  *::before,
  *::after {
    background: #fff !important;
    color: #000 !important;
    /* Black prints faster */
    box-shadow: none !important;
    text-shadow: none !important;
  }
  a,
  a:visited {
    text-decoration: underline;
  }
  a[href]::after {
    content: " (" attr(href) ")";
  }
  abbr[title]::after {
    content: " (" attr(title) ")";
  }
  /*
   * Don't show links that are fragment identifiers,
   * or use the `javascript:` pseudo protocol
   */
  a[href^="#"]::after,
  a[href^="javascript:"]::after {
    content: "";
  }
  pre {
    white-space: pre-wrap !important;
  }
  pre,
  blockquote {
    border: 1px solid #999;
    page-break-inside: avoid;
  }
  /*
   * Printing Tables:
   * https://web.archive.org/web/20180815150934/http://css-discuss.incutio.com/wiki/Printing_Tables
   */
  thead {
    display: table-header-group;
  }
  tr,
  img {
    page-break-inside: avoid;
  }
  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }
  h2,
  h3 {
    page-break-after: avoid;
  }
}