/*
Shims for Flexbox - should work on Safari and IE10+
*/
.display-flex {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}
* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}
body {
  color: #231f20;
  font-family: "ff-meta-serif-web-pro", Georgia, serif;
  font-size: 19px;
  line-height: 1.42105263;
  padding: 0;
  margin: 0;
  touch-action: manipulation;
}
main {
  display: block;
}
a {
  color: #0777b3;
  text-decoration: none;
  outline: 0 !important;
}
a:hover {
  color: #2b4d70;
}
a img {
  border: none;
}
img,
video,
embed,
object,
iframe {
  max-width: 100%;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  color: #231f20;
  margin: 1.42105263 0 0.71052632 0;
}
h1 {
  font-size: 28px;
  line-height: 1.07142857;
  letter-spacing: -0.5px;
}
@media (max-width: 768px) {
  h1 {
    font-size: 42px;
    line-height: 1.0952381;
    letter-spacing: -1px;
  }
}
h2 {
  font-size: 24px;
  line-height: 1.42105263;
}
h3 {
  font-size: 22px;
  line-height: 1.04545455;
}
h4 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0.71052632 0 0 0;
}
nav.main-nav {
  background: white;
  border-bottom: 1px solid #e0e0e0;
  box-shadow: 0 2px 7px rgba(0, 0, 0, 0.1);
  position: relative;
  line-height: 1;
}
nav.main-nav .wrapper {
  max-width: 1020px;
  margin: auto;
  position: relative;
  padding: 10px;
}
@media (max-width: 480px) {
  nav.main-nav .wrapper {
    padding: 6px;
  }
}
nav.main-nav .logo {
  display: block;
  vertical-align: middle;
}
nav.main-nav .logo img {
  height: 24px;
  max-height: 100%;
}
@media (max-width: 480px) {
  nav.main-nav .logo img {
    height: 18px;
  }
}
nav.main-nav .share.top {
  position: absolute;
  top: 10px;
  right: 10px;
}
@media (max-width: 768px) {
  nav.main-nav .share.top {
    right: 4px;
    width: auto !important;
  }
}
nav.main-nav .share.top label {
  background: white !important;
}
@media (max-width: 480px) {
  nav.main-nav .share.top {
    top: 6px;
  }
  nav.main-nav .share.top label span {
    display: none;
  }
  nav.main-nav .share.top .left {
    margin-left: -275px !important;
  }
}
.ad {
  text-align: center;
  padding: 16px 0;
}
.ad.square {
  float: right;
  width: 320px;
}
@media (max-width: 480px) {
  .ad.square {
    width: 100%;
  }
}
.show-comments {
  border: 1px solid #0777b3;
  padding: 20px;
  text-align: center;
  text-transform: uppercase;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  font-weight: bold;
  font-size: 15px;
  color: #0777b3;
  cursor: pointer;
  margin: 20px 0;
}
.thin-div {
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 15px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  margin: auto;
  max-width: 900px;
}
.thin-div .center {
  position: relative;
  top: 15px;
  margin: auto;
  width: 105px;
  text-align: center;
  font-size: 20px;
  background: white;
}
.dont-miss {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: auto;
  margin-top: 15px;
  max-width: 900px;
  font-size: 17px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
}
.dont-miss .story {
  -webkit-flex: 0 0 25%;
  -ms-flex: 0 0 25%;
  flex: 0 0 25%;
}
@media (max-width: 480px) {
  .dont-miss .story {
    -webkit-flex: 1 1 50%;
    -ms-flex: 1 1 50%;
    flex: 1 1 50%;
  }
}
.dont-miss .padded {
  padding: 10px;
}
.dont-miss img {
  width: 100%;
}
.dont-miss a {
  color: #424648;
  transition: color .1s linear;
}
.dont-miss a:hover {
  color: #0777b3;
}
footer.nav-bottom {
  background: black;
  opacity: 0.95;
  padding: 8px 8px 4px 8px;
  position: relative;
  z-index: 99;
}
footer.nav-bottom .logo {
  float: left;
  margin-right: 10px;
}
footer.nav-bottom .logo img {
  margin-top: 5px;
  height: 20px;
}
footer.nav-bottom::after {
  clear: both;
  content: " ";
  display: block;
}
footer.nav-bottom .share.bottom {
  float: right;
  margin-top: 2px;
}
footer.nav-bottom .share.bottom label {
  background: black !important;
  color: white !important;
}
header.splash {
  position: relative;
  margin-bottom: 40px;
}
header.splash .aerial-video {
  height: 0;
  padding-bottom: 56.39097744%;
  position: relative;
}
header.splash video,
header.splash canvas {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  display: block;
  transform: translateZ(0);
}
header.splash h1 {
  color: white;
  position: absolute;
  width: 100%;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  margin: 0;
  padding: 0;
  left: 0;
  text-align: center;
  z-index: 999;
  background: transparent;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.7);
  font-size: 60px;
  font-style: italic;
}
@media (max-width: 480px) {
  header.splash h1 {
    font-size: 36px;
    padding: 0 20px;
  }
}
.section-header {
  position: relative;
  width: 100%;
  margin: 40px 0;
  overflow: hidden;
}
.section-header .splash-container {
  position: relative;
  cursor: pointer;
}
.section-header .splash-container.reveal h2 {
  opacity: 0.01;
  -webkit-transform: translateY(-35%);
  transform: translateY(-35%);
}
.section-header h2 {
  color: white;
  position: absolute;
  width: 100%;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  margin: 0;
  padding: 0;
  left: 0;
  text-align: center;
  z-index: 999;
  background: transparent;
  text-shadow: 0 4px 4px black;
  font-size: 60px;
  font-style: italic;
  transition: all 0.5s ease-in-out;
}
@media (max-width: 480px) {
  .section-header h2 {
    font-size: 36px;
    line-height: 1.2;
    padding: 0 20px;
  }
}
.section-header img {
  width: 100%;
}
.section-header .caption {
  color: #7e838b;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  font-size: 14px;
  text-align: right;
  padding: 0 20px;
  max-width: 700px;
  margin: 0 auto;
}
@media (max-width: 480px) {
  .section-header .caption {
    text-align: left;
  }
}
body {
  font-size: 17px;
}
.constrained {
  max-width: 600px;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .constrained {
    padding: 0 8px;
  }
}
.byline {
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  color: #0777b3;
  margin-bottom: 20px;
}
@media (max-width: 480px) {
  .byline {
    font-size: 16px;
    margin: 20px 0;
  }
}
.date {
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  color: #7e838b;
}
.map-container {
  float: right;
  max-width: 50%;
  margin-left: 8px;
  margin-bottom: 8px;
  color: #7e838b;
  font-size: 14px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  text-align: center;
  cursor: pointer;
}
.map-container::after {
  display: block;
  content: "Click to zoom";
}
.map-container.expanded {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  max-width: 100%;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  margin: 0;
  z-index: 999;
}
@media (max-width: 480px) {
  .map-container.expanded img {
    height: 90%;
  }
}
.map-container.expanded::after {
  content: "x";
  position: absolute;
  color: white;
  font-weight: bold;
  top: 0;
  right: 0;
  padding: 18px;
  cursor: pointer;
  font-size: 36px;
}
.sidebar {
  float: right;
  max-width: 300px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  padding: 20px;
  margin-left: 20px;
  margin-bottom: 20px;
  font-size: 15px;
}
@media (max-width: 480px) {
  .sidebar {
    display: block;
    float: none;
    max-width: 100%;
    margin: 0;
    padding: 8px;
  }
}
.sidebar h2 {
  font-size: 16px;
  margin: 0;
  text-align: center;
}
.sidebar h3 {
  font-size: 15px;
  text-align: center;
}
.sidebar .divider {
  border: none;
  border-top: 0.5px solid #7e838b;
  margin: 20px 20%;
}
.sidebar .methodology {
  text-align: center;
}
.jump-navigation hr {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 40px auto 20px;
}
.jump-navigation h2 {
  display: block;
  text-align: center;
  margin: 0 40px;
}
.jump-navigation ul {
  list-style-type: none;
  text-align: center;
}
.jump-navigation ul li {
  display: inline;
}
.jump-navigation ul li::after {
  content: " | ";
}
.jump-navigation ul li:last-child::after {
  content: "";
}
#upper.section-header {
  margin-top: 20px;
}
.jump-links {
  list-style: inside circle;
  margin: 10px;
  padding: 0;
}
.jump-links li {
  margin-bottom: 8px;
}
.slider-container {
  padding: 20px 0;
  border-top: 1px solid #e0e0e0;
  border-bottom: 1px solid #e0e0e0;
  margin: 40px 0;
}
.slider-container image-slider {
  margin: auto;
  display: block;
}
.slider-container .caption {
  font-size: 14px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  padding-top: 10px;
}
.slider-container::after {
  content: "";
  display: block;
  clear: both;
}
.point-of-interest {
  clear: right;
}
.point-of-interest h4 {
  margin-bottom: 0;
  font-size: 18px;
}
.point-of-interest p {
  margin-top: 0;
}
.point-of-interest .image-container {
  float: right;
  width: 50%;
  margin: 0 20px 20px;
  border-radius: 30px 0;
  border: 10px solid white;
  overflow: hidden;
}
@media (max-width: 480px) {
  .point-of-interest .image-container {
    width: 100%;
    float: none;
    margin: 20px 0;
    border-radius: 0;
  }
}
.point-of-interest .content {
  width: 70%;
}
.contact-info {
  border-top: 1px solid #e0e0e0;
  color: #424648;
  text-align: center;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  margin-top: 40px;
  padding: 20px;
}
footer {
  background: #424648;
  color: white;
  padding: 40px;
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  font-size: 15px;
}
footer .sources {
  padding-bottom: 20px;
}
footer .nerdbox {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}
@media (max-width: 480px) {
  footer .nerdbox {
    display: block;
  }
}
footer .subscribe-box {
  background: #e0e0e0;
  color: black;
  padding: 20px;
  text-align: center;
}
@media (max-width: 480px) {
  footer .subscribe-box {
    margin-top: 40px;
  }
}
footer .subscribe-box .button-box {
  padding-top: 20px;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}
@media (max-width: 480px) {
  footer .subscribe-box .button-box {
    display: block;
  }
}
footer .subscribe-box .button-box img {
  margin: 0 10px;
  height: 30px;
}
@media (max-width: 480px) {
  footer .subscribe-box .button-box img {
    margin: 10px 0;
  }
}
footer .subscribe-box .button-box .subscribe-button {
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
  background: #0777b3;
  padding: 8px 16px;
  border-radius: 2px;
  display: block;
  text-align: center;
  color: white;
  font-weight: bold;
}
footer .credits {
  list-style-type: none;
  margin: 0 auto;
  padding: 0 10px 0 0;
}
footer .credits li {
  margin-bottom: 8px;
}
footer .copyright {
  padding: 40px 0;
  text-align: center;
}
.stuck {
  position: fixed !important;
  top: 0;
  left: 0;
  max-width: 100%;
  transition: opacity .2s linear;
  opacity: 1;
}
.stuck.hidden {
  opacity: 0;
  pointer-events: none;
}
.stuck img {
  max-width: 100%;
}
.fixed-placeholder {
  position: relative;
}
.fixed-placeholder .aspect-inner {
  height: 0;
}
.fixed-placeholder [sticky]:not(.stuck) {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.image-container {
  position: relative;
  max-width: 100%;
}
.image-container img {
  display: block;
  width: 100%;
}
.image-container .wash {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transition: all 5s ease-in-out;
  width: 100%;
  height: 100%;
}
.image-container.animate .wash {
  opacity: 1;
}
.image-container canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.toggle-section {
  overflow: hidden;
}
.toggle-section .image-container {
  width: 100%;
  margin: 0 0 10px;
  padding: 0;
  border-radius: 0;
  box-shadow: none;
}
.toggle-section .point-of-interest {
  clear: both;
}
.toggle-section .selected-area {
  float: left;
  width: 70%;
}
@media (max-width: 480px) {
  .toggle-section .selected-area {
    width: 100%;
  }
}
.toggle-section .selected-area .point-of-interest h4,
.toggle-section .selected-area .point-of-interest p {
  transition: opacity .5s linear;
}
.toggle-section .selected-area .point-of-interest.faded h4,
.toggle-section .selected-area .point-of-interest.faded p {
  opacity: 0.01;
}
.toggle-section .selected-area .image-container {
  z-index: 999;
}
.toggle-section .on-deck {
  float: right;
  width: 20%;
  position: relative;
}
@media (max-width: 480px) {
  .toggle-section .on-deck {
    float: none;
    width: 100%;
    border-bottom: 1px solid #e0e0e0;
    overflow: hidden;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 30px;
  }
}
.toggle-section .on-deck::before {
  content: "Click to read:";
  font-family: "ff-dagny-web-pro", Helvetica Neue, Helvetica, sans-serif;
  text-align: center;
  display: block;
  color: #424648;
  font-size: 13px;
  margin: 0;
}
@media (max-width: 480px) {
  .toggle-section .on-deck::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
  }
}
.toggle-section .on-deck .image-container {
  box-shadow: none;
  border-radius: 0;
}
.toggle-section .on-deck .point-of-interest {
  margin-bottom: 20px;
  transition: opacity .5s linear .5s;
}
.toggle-section .on-deck .point-of-interest.faded {
  opacity: 0.01;
}
.toggle-section .on-deck h4 {
  font-size: 14px;
  line-height: 1.2;
  text-align: center;
  margin: 0;
}
@media (max-width: 480px) {
  .toggle-section .on-deck h4 {
    display: none;
  }
}
.toggle-section .on-deck p {
  display: none;
}
.logjam-scenery .aspect-inner {
  padding-bottom: 51%;
  transition: all 0.2s ease-in-out;
}
.sliding-scene {
  transition: opacity 0.6s linear, box-shadow 0.5s ease-in-out;
  -webkit-transform: translateZ(0) translateY(0%);
  transform: translateZ(0) translateY(0%);
  transform-origin: bottom;
  z-index: 999;
  width: 100%;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
}
.sliding-scene img {
  display: block;
  width: 100%;
}
.sliding-scene.fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  -webkit-transform: translateY(-70%);
  transform: translateY(-70%);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}
.sliding-scene .before,
.sliding-scene .after {
  display: block;
  background: rgba(255, 255, 255, 0.6);
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0%;
  height: 100%;
  transition: width 0.4s ease-in-out;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.sliding-scene .before {
  left: 0;
}
.sliding-scene .after {
  right: 0;
}
.sliding-scene[data-zone="upright"] .before {
  width: 0%;
}
.sliding-scene[data-zone="upright"] .after {
  width: 75%;
}
.sliding-scene[data-zone="falling"] .before {
  width: 25%;
}
.sliding-scene[data-zone="falling"] .after {
  width: 45%;
}
.sliding-scene[data-zone="island"] .before {
  width: 60%;
}
.sliding-scene[data-zone="island"] .after {
  width: 0%;
}
.log-stage {
  display: block;
  clear: both;
}
.log-stage .mice {
  float: right;
  width: 50%;
  margin-left: 8px;
}
.log-stage .mice .image-container {
  margin: 0;
  float: none;
  width: 100%;
}
.log-stage .mice .image-container:nth-child(2n) {
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
}
@media (max-width: 480px) {
  .log-stage .mice {
    float: none;
    width: 100%;
    margin: 10px 0;
  }
}
.mouth.river-zone .mouth-cutaway {
  margin-bottom: 20px;
}
.mouth.river-zone .mouth-cutaway .aspect-inner {
  padding-bottom: 36.58333333%;
}
.mouth.river-zone .mouth-fade {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  overflow: hidden;
}
.mouth.river-zone .mouth-fade::after {
  position: absolute;
  left: 30px;
  bottom: 10px;
  content: "Before dam removal";
  color: #7e838b;
  font-size: 28px;
  font-style: italic;
}
.mouth.river-zone .mouth-fade.stuck {
  max-width: 600px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
}
.mouth.river-zone .mouth-fade img {
  display: block;
}
.mouth.river-zone .mouth-fade img.after {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0.01;
  transition: opacity .5s linear;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}
.mouth.river-zone .mouth-fade.activate::after {
  content: "After dam removal";
}
.mouth.river-zone .mouth-fade.activate img.after {
  opacity: 1;
}