@charset "UTF-8";
/*! normalize.css v7.0.0 | MIT License | github.com/necolas/normalize.css */
/* Document
   ========================================================================== */
/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in
 *    IE on Windows Phone and in iOS.
 */
html {
  line-height: 1.15;
  /* 1 */
  -ms-text-size-adjust: 100%;
  /* 2 */
  -webkit-text-size-adjust: 100%;
  /* 2 */ }

/* Sections
   ========================================================================== */
/**
 * Remove the margin in all browsers (opinionated).
 */
body {
  margin: 0; }

/**
 * Add the correct display in IE 9-.
 */
article,
aside,
footer,
header,
nav,
section {
  display: block; }

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */
h1 {
  font-size: 2em;
  margin: 0.67em 0; }

/* Grouping content
   ========================================================================== */
/**
 * Add the correct display in IE 9-.
 * 1. Add the correct display in IE.
 */
figcaption,
figure,
main {
  /* 1 */
  display: block; }

/**
 * Add the correct margin in IE 8.
 */
figure {
  margin: 1em 40px; }

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */
hr {
  box-sizing: content-box;
  /* 1 */
  height: 0;
  /* 1 */
  overflow: visible;
  /* 2 */ }

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
pre {
  font-family: monospace, monospace;
  /* 1 */
  font-size: 1em;
  /* 2 */ }

/* Text-level semantics
   ========================================================================== */
/**
 * 1. Remove the gray background on active links in IE 10.
 * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
 */
a {
  background-color: transparent;
  /* 1 */
  -webkit-text-decoration-skip: objects;
  /* 2 */ }

/**
 * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */
abbr[title] {
  border-bottom: none;
  /* 1 */
  text-decoration: underline;
  /* 2 */
  text-decoration: underline dotted;
  /* 2 */ }

/**
 * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
 */
b,
strong {
  font-weight: inherit; }

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */
b,
strong {
  font-weight: bolder; }

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
code,
kbd,
samp {
  font-family: monospace, monospace;
  /* 1 */
  font-size: 1em;
  /* 2 */ }

/**
 * Add the correct font style in Android 4.3-.
 */
dfn {
  font-style: italic; }

/**
 * Add the correct background and color in IE 9-.
 */
mark {
  background-color: #ff0;
  color: #000; }

/**
 * Add the correct font size in all browsers.
 */
small {
  font-size: 80%; }

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline; }

sub {
  bottom: -0.25em; }

sup {
  top: -0.5em; }

/* Embedded content
   ========================================================================== */
/**
 * Add the correct display in IE 9-.
 */
audio,
video {
  display: inline-block; }

/**
 * Add the correct display in iOS 4-7.
 */
audio:not([controls]) {
  display: none;
  height: 0; }

/**
 * Remove the border on images inside links in IE 10-.
 */
img {
  border-style: none; }

/**
 * Hide the overflow in IE.
 */
svg:not(:root) {
  overflow: hidden; }

/* Forms
   ========================================================================== */
/**
 * 1. Change the font styles in all browsers (opinionated).
 * 2. Remove the margin in Firefox and Safari.
 */
button,
input,
optgroup,
select,
textarea {
  font-family: sans-serif;
  /* 1 */
  font-size: 100%;
  /* 1 */
  line-height: 1.15;
  /* 1 */
  margin: 0;
  /* 2 */ }

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */
button,
input {
  /* 1 */
  overflow: visible; }

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */
button,
select {
  /* 1 */
  text-transform: none; }

/**
 * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
 *    controls in Android 4.
 * 2. Correct the inability to style clickable types in iOS and Safari.
 */
button,
html [type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
  /* 2 */ }

/**
 * Remove the inner border and padding in Firefox.
 */
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0; }

/**
 * Restore the focus styles unset by the previous rule.
 */
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText; }

/**
 * Correct the padding in Firefox.
 */
fieldset {
  padding: 0.35em 0.75em 0.625em; }

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */
legend {
  box-sizing: border-box;
  /* 1 */
  color: inherit;
  /* 2 */
  display: table;
  /* 1 */
  max-width: 100%;
  /* 1 */
  padding: 0;
  /* 3 */
  white-space: normal;
  /* 1 */ }

/**
 * 1. Add the correct display in IE 9-.
 * 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */
progress {
  display: inline-block;
  /* 1 */
  vertical-align: baseline;
  /* 2 */ }

/**
 * Remove the default vertical scrollbar in IE.
 */
textarea {
  overflow: auto; }

/**
 * 1. Add the correct box sizing in IE 10-.
 * 2. Remove the padding in IE 10-.
 */
[type="checkbox"],
[type="radio"] {
  box-sizing: border-box;
  /* 1 */
  padding: 0;
  /* 2 */ }

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto; }

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */
[type="search"] {
  -webkit-appearance: textfield;
  /* 1 */
  outline-offset: -2px;
  /* 2 */ }

/**
 * Remove the inner padding and cancel buttons in Chrome and Safari on macOS.
 */
[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none; }

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */
::-webkit-file-upload-button {
  -webkit-appearance: button;
  /* 1 */
  font: inherit;
  /* 2 */ }

/* Interactive
   ========================================================================== */
/*
 * Add the correct display in IE 9-.
 * 1. Add the correct display in Edge, IE, and Firefox.
 */
details,
menu {
  display: block; }

/*
 * Add the correct display in all browsers.
 */
summary {
  display: list-item; }

/* Scripting
   ========================================================================== */
/**
 * Add the correct display in IE 9-.
 */
canvas {
  display: inline-block; }

/**
 * Add the correct display in IE.
 */
template {
  display: none; }

/* Hidden
   ========================================================================== */
/**
 * Add the correct display in IE 10-.
 */
[hidden] {
  display: none; }

/*
 * The following styles were written by Justin Reese <justin@justinreese.com> on
 * behalf of Zeynep Tufekci <zeynep@technosociology.org>. Please do not copy the
 * styles directly without permission from both Justin and Zeynep.
 *
 * Thanks to `html5-boilerplate` (https://html5boilerplate.com) for some bits.
 */
/* ==========================================================================
   Structure
   ========================================================================== */
*, *:before, *:after {
  box-sizing: border-box; }

.nav-open, .nav-open > body {
  overflow: hidden;
  overflow-x: hidden;
  overflow-y: hidden; }

body > header {
  padding-left: 1rem;
  padding-right: 1rem;
  text-align: center;
  background-color: transparent;
  background-repeat: no-repeat;
  background-image: url("/images/cover-lettering.png"), url("/images/teargas-road-1200.jpg");
  background-size: auto 70%, cover;
  background-position: 20% 50%, center center;
  height: 100vh; }
  body > header > h1 {
    margin: 0;
    padding: 0;
    color: transparent; }
  @media only screen and (max-width: 767px) {
    body > header {
      background-size: auto 70%, cover;
      background-position: center center, center center; } }
body > nav {
  padding-left: 1rem;
  padding-right: 1rem; }
  body > nav #book-options {
    display: none; }
  @media only screen and (max-width: 767px) {
    body > nav {
      position: fixed;
      z-index: 1000;
      top: 0;
      left: 0;
      right: 0;
      bottom: 100%;
      background-color: transparent;
      -webkit-transition: bottom 250ms, background-color 250ms;
      -moz-transition: bottom 250ms, background-color 250ms;
      -ms-transition: bottom 250ms, background-color 250ms;
      -o-transition: bottom 250ms, background-color 250ms;
      transition: bottom 250ms, background-color 250ms; }
      body > nav #book-options {
        margin: 2rem 0 1rem 0;
        text-align: center;
        color: white; }
        body > nav #book-options a {
          color: white; }
      .nav-open body > nav {
        bottom: 0;
        overflow-x: hidden;
        overflow-y: scroll;
        -webkit-overflow-scrolling: touch;
        padding-top: 50px;
        background-color: rgba(0, 0, 0, 0.9); }
        .nav-open body > nav #book-options {
          display: block; }
        .nav-open body > nav #book-3d-link {
          display: block;
          text-align: center;
          margin: 1rem auto;
          width: 200px;
          height: 188px; } }
  @media only screen and (min-width: 768px) {
    body > nav {
      position: fixed;
      width: 240px;
      top: 10%;
      right: 5%; } }
  body > nav > a {
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 700;
    white-space: nowrap; }
    @media only screen and (max-width: 767px) {
      body > nav > a {
        display: none;
        color: white;
        font-size: 2em;
        padding: 10px;
        opacity: 0;
        -webkit-transition: opacity 250ms;
        -moz-transition: opacity 250ms;
        -ms-transition: opacity 250ms;
        -o-transition: opacity 250ms;
        transition: opacity 250ms; }
        body > nav > a#nav-splash-link {
          display: none; }
        body > nav > a.nav-menu-constant {
          display: inline-block;
          position: absolute;
          top: 5px;
          font-size: 1em;
          padding: 10px;
          background-color: rgba(0, 0, 0, 0.9);
          opacity: 1;
          -webkit-transition: background-color 250ms;
          -moz-transition: background-color 250ms;
          -ms-transition: background-color 250ms;
          -o-transition: background-color 250ms;
          transition: background-color 250ms; }
          body > nav > a.nav-menu-constant#nav-menu-link {
            left: 5px; }
          body > nav > a.nav-menu-constant#nav-buy-link {
            right: 5px; }
        .nav-open body > nav > a {
          display: block;
          opacity: 1;
          margin-left: calc(1.25em + 5px - 10px - 1rem); }
          .nav-open body > nav > a.nav-menu-constant {
            margin-left: 0;
            background-color: transparent; } }
    @media only screen and (min-width: 768px) {
      body > nav > a {
        display: block;
        margin: 2px 0 2px 2em;
        color: #222;
        background-color: rgba(255, 255, 255, 0.6);
        padding: 10px;
        -webkit-transition: margin 250ms;
        -moz-transition: margin 250ms;
        -ms-transition: margin 250ms;
        -o-transition: margin 250ms;
        transition: margin 250ms; }
        body > nav > a:hover {
          margin-left: 1.5em; }
        body > nav > a.active {
          margin-left: 0;
          background-image: url("/images/fuzz.jpg"); }
        body > nav > a#nav-menu-link {
          display: none; } }
@media only screen and (min-width: 576px) {
  body > main {
    margin-left: 5%; } }
@media only screen and (min-width: 768px) {
  body > main {
    margin-right: 300px; } }
body > main > section {
  max-width: 35em;
  padding-top: 3rem;
  padding-left: 1rem;
  padding-right: 1rem;
  margin-bottom: 1rem; }
  body > main > section > h1 {
    text-transform: uppercase; }
body > footer {
  margin: 6rem auto 1rem auto;
  padding-left: 1rem;
  padding-right: 1rem;
  text-align: center;
  max-width: 40em; }

#nav-menu-link {
  padding-left: 2.5em; }

#nav-menu-icon {
  height: 2em;
  position: absolute;
  left: 0.5em;
  top: 1.175em; }
  #nav-menu-icon > span, #nav-menu-icon > span:before, #nav-menu-icon > span:after {
    position: absolute;
    display: block;
    height: 3px;
    width: 1.5em;
    border-radius: 1px;
    background: white;
    content: '';
    -webkit-transition: all 250ms;
    -moz-transition: all 250ms;
    -ms-transition: all 250ms;
    -o-transition: all 250ms;
    transition: all 250ms; }
  #nav-menu-icon > span:before {
    top: -7px; }
    .nav-open #nav-menu-icon > span:before {
      top: 0;
      transform: rotate(45deg); }
  #nav-menu-icon > span:after {
    top: 7px; }
    .nav-open #nav-menu-icon > span:after {
      top: 0;
      transform: rotate(-45deg); }
  .nav-open #nav-menu-icon > span {
    background-color: transparent; }

table {
  margin: 2rem 0;
  width: 100%; }
  table caption {
    border-bottom: 3px #222 solid;
    font-size: 1.4em;
    font-weight: 700; }
  table thead {
    display: none; }

figure {
  margin: 1rem 0; }

figcaption {
  font-size: 0.9em;
  color: #666; }

img.responsive {
  width: 100%;
  height: auto; }

a.external:after {
  content: ' ⇗'; }

/* ==========================================================================
   Reviews
   ========================================================================== */
#reviews section {
  margin: 3rem 0; }
  #reviews section blockquote {
    margin: 0;
    padding: 0 0 0 1rem;
    border-left: 4px #222 solid; }
  #reviews section cite {
    display: block;
    font-style: normal;
    font-weight: 700;
    margin: 0.5rem 0 0 1rem;
    border-left: 4px transparent solid; }

/* ==========================================================================
   Videos
   ========================================================================== */
#videos section {
  margin: 1rem 0; }

/* ==========================================================================
   Talks
   ========================================================================== */
#upcoming {
  max-width: 45em; }
  #upcoming table > caption {
    text-align: right; }
  #upcoming table > tbody > tr:nth-child(even) {
    background-color: #f5f5f5; }
  #upcoming table > tbody > tr:hover {
    background-color: #ffc;
    cursor: pointer; }
  #upcoming table > tbody > tr > th, #upcoming table > tbody > tr > td {
    padding: 0.25em; }
  #upcoming table .date {
    white-space: nowrap;
    text-align: right; }

/* ==========================================================================
   Error page
   ========================================================================== */
#page-error body > header {
  max-height: 200px;
  background-position: center center; }
#page-error body > main {
  margin: 0; }
  #page-error body > main > section {
    margin: 0 auto;
    text-align: center; }

/* ==========================================================================
   Typography
   ========================================================================== */
html {
  font: 1em/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
  @media only screen and (max-width: 575px) {
    html {
      font-size: 0.9em; } }

body > nav,
body > footer,
h1,
h2,
h3,
h4,
h5,
h6,
th,
td,
cite,
aside,
figcaption,
caption {
  font-family: 'Inconsolata', monospace;
  line-height: 1.3; }

.nobr {
  white-space: nowrap; }

.note {
  color: gray; }

/* ==========================================================================
   Print styles
   ========================================================================== */
@media print {
  *,
  *:before,
  *:after,
  p:first-letter,
  div:first-letter,
  blockquote:first-letter,
  li:first-letter,
  p:first-line,
  div:first-line,
  blockquote:first-line,
  li:first-line {
    background: transparent !important;
    color: #000 !important;
         /* Black prints faster:
http://www.sanbeiji.com/archives/953 */
    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:
   * 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; } }