:root {
    --svg-graph-green: #2ca02c;
    --svg-graph-cyan: #28ACBF;
    --graph-color-opacity: 1;
    --graph-violet-color: rgba(34 26 94/var(--graph-color-opacity));
    --graph-blocks-box-shadow: 1px 1px 1px rgba(0,0,0,0.15), 0 0 1px rgba(0,0,0,0.15);
}

/** ========================================
    Regions header section 
========================================= */
.h2-rsc {
  font-size: 2.4rem;
  color: var(--green-color);
  margin-bottom: 1.5rem;
  line-height: 3.3rem;
  padding-right: 2rem; 
}

.h4-rsc {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-color);
  margin-bottom: 3rem;
}
#regions-header--hero {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3fr;
    color: white;
}
#p-intro {
    margin-bottom: 3rem;
    font-size: 1.1rem;
}
#content-wrapper {
    padding-left: var(--main-left-margin);
    padding-bottom: var(--content-margin-bottom);
}
#regions-header {
    background-image: linear-gradient(-227deg, var(--graph-violet-color) 67%, #000 100%);
    padding: 2rem 0 1rem 1.15rem
}
#regions-header h1 {
    padding: 1.5rem 0;
    line-height: 3rem;
    white-space: nowrap;
}
#regions-header p {
    padding-left: .2rem;
    font-size: 1.1rem;
    line-height: var(--p-line-height);
    letter-spacing: .005rem;
}
#regions-header p:last-of-type {
    margin-bottom: 2rem;
}
#regions-header aside {
    font-size: .9rem;
    padding: .75rem;
    border: 1px solid #e6e6e655;
    font-weight: 300;
    border-radius: 6px;
    letter-spacing: .005rem;
}
#regions-header aside p {
    font-size: .9rem;
    letter-spacing: .02rem;
    margin-bottom: .25rem;
}
#regions-header aside a {
    color: var(--green-color);
}
#regions-header aside a.em {
    font-weight: 400;
}
#regions-header aside p:last-child {
    margin-bottom: 0;
}
#diagram-wrapper .stroke {
    border: 2px solid rgba(255 255 255 /.9);
}

/** ========================================
    SVG diagram
========================================= */
#regions-header .node {
    font: 300 11px "Lato", "Helvetica Neue", Helvetica, Arial, sans-serif;
    fill: #FFFFFFBB;
    cursor: pointer;
}
#regions-header .node:hover {
    fill: var(--svg-graph-green);
    font-weight: 600;
    font-size: 1rem;
    opacity: 1;
}
#regions-header .link {
    stroke: var(--svg-graph-cyan);
    stroke-opacity: .4;
    fill: none;
    pointer-events: none;
}
#regions-header .link--source,
#regions-header .link--target {
    font-weight: 300;
    stroke-opacity: 1;
    stroke-width: 2px;
    stroke: var(--svg-graph-green);
}
#regions-header .node--source,
#regions-header .node--target {
    font-weight: 300;
    font-size: 13px;
    letter-spacing: .02rem;
    stroke: var(--svg-graph-green);
}


/** ========================================
    History Timeline
========================================= */

#regions-history {
    padding: 2rem 0 1rem 1.15rem;
    margin: 0 auto;
}
.prose #regions-history--timeline ul {
    margin-left: O;
}
#regions-history--timeline {
  position: relative;
  width: min(1000px, 94%);
  margin: 0 auto;
  margin-top: 20px;
  padding: 1rem 0;
  list-style-type: none;
}
#regions-history--timeline:before {
  position: absolute;
  left: 50%;
  top: 0;
  content: ' ';
  display: block;
  width: 6px;
  height: 100%;
  margin-left: -3px;
  background: rgb(80,80,80);
  background: linear-gradient(to bottom, rgba(80,80,80,0) 0%, rgb(80,80,80) 8%, rgb(80,80,80) 92%, rgba(80,80,80,0) 100%);
  z-index: 5;
}
#regions-history--timeline li {
  padding: 1rem 0;
  font-size: 1rem;
}
#regions-history--timeline li div {
    padding: .3rem .5rem .5rem .5rem;
}
#regions-history--timeline li img {
    max-width: 160px;
    max-height: 50px;
    margin: 0 .5rem;
}
#regions-history--timeline li:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
#regions-history--timeline .direction-l,
#regions-history--timeline .direction-r {
  position: relative;
  width: calc(50% - 24px);
  border-radius: 10px;
  background: rgba(255 255 255/.9);
}
.direction-l {
  float: left;
  text-align: right;
}
.direction-r {
  float: right;
}
.direction-l .milestone:before,
.direction-r .milestone:before {
  position: absolute;
  top: 50%;
  right: -40px;
  content: ' ';
  display: block;
  width: 16px;
  height: 16px;
  margin-top: -10px;
  background: #fff;
  border-radius: 10px;
  border: 6px solid var(--green-color);
  z-index: 10;
}
.direction-r .milestone:before {
  left: -40px;
}
.direction-l .milestone:after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-left-color: var(--main-bg-color);
  border-width: 8px;
  pointer-events: none;
}
.direction-r .milestone:after {
  content: "";
  position: absolute;
  right: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-right-color: var(--main-bg-color);
  border-width: 8px;
  pointer-events: none;
}

.milestone {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: 1rem;
  background: var(--main-bg-color);
  padding: 6px 10px;
  border-radius: 6px;
  font-weight: 300;
  text-align: left;
  box-shadow: 1px 1px 1px rgba(0,0,0,0.15), 0 0 1px rgba(0,0,0,0.15);
}

.direction-r .milestone-rsc,
.direction-l .milestone-rsc {
  text-align: center;
  display: grid;
  gap: 1;
  align-items: center;
}
.direction-l .milestone-details {
  grid-column: 2/3;
  grid-row: 1/1;
  text-align: right;
}
.direction-l .milestone-details p {
  text-align: left;
}
.direction-l .milestone-rsc {
  grid-column: 1/2;
  grid-row: 1/1;
}
.milestone time,
.milestone em {
  display: inline;
}
.milestone time {
  font-weight: 300;
  font-size: 1.75rem;
}
.milestone em {
  font-weight: 300;
}
.milestone mark {
  display: inline-block;
  background-color: white;
  border-radius: 4px;
  padding: 0 .5rem;
  font-size: .9rem;
  letter-spacing: .01rem;
  margin-top: .3rem;
}
.milestone p {
  line-height: 1.25rem;
  margin-bottom: 0;
}
#regions-history--timeline .milestone-pics {
  background: white;
  display: flex; 
  gap: .5rem; 
  flex-direction: column;
  margin-top: 0.4rem;
  border-radius: 3px;
}

#timeline-details {
  margin: 2rem auto;
  box-shadow: var(--graph-blocks-box-shadow);
  background: var(--main-bg-color);
  width: 65ch;
}
#timeline-details summary {
  margin: 0 auto; 
  width: fit-content;
}

#timeline-details .dl-horizontal dt {
  width: 25%;
  color: var(--text-color);
}
#timeline-details .dl-horizontal dd {
  width: 75%;
}


/** ========================================
    Regional Security Coordinators
========================================= */
#regions-rscs {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin: 4rem 0;
}
#grid-rscs {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
  padding: 0 6rem 0 0;
  margin: 2rem 0 0 0;
}
#regions-rscs > img {
  object-fit: cover;
  height: 100%;
}
#grid-rscs li {
  padding: 1.5rem 3rem 2rem 2.5rem;
  background: var(--white-color);
  border-radius: var(--card-border-radius);
  overflow: clip;
  box-shadow: var(--card-box-shadow);
  line-height: var(--p-line-height-compact);
  font-size: 1.2rem;
  line-height: 1.7rem;
}
#grid-rscs li span {
  display: block;
  height: 65px;
  font-weight: 400;
}
#grid-rscs li img {
  max-width: 130px;
  max-height: 55px;
}
#grid-rscs dd {
  font-size: 1.1rem;
}
#grid-rscs dd a {
  position: relative;
  padding-right: 2rem;
}
#grid-rscs .ee-icon-envelope {
  position: absolute;
  right: .5rem;
  bottom: .1rem;
}

/** ========================================
    Roles
========================================= */
#regions-roles {
  padding: 3rem 0;
}
#regions-roles h3 {
  font-weight: 600;
}
#regions-roles p {
  font-size: var(--p-font-size);
}
#regions-roles figcaption {
  text-align: center;
}
#regions-graph--tso-role {
  display: grid;
  grid-template-columns: 3fr 2fr 1fr;
  gap: 1px;
  align-items: center;
  justify-content: center;
  box-shadow: var(--card-box-shadow);
  border-radius: 10px;
  max-width: max(300px, 80%);
  margin-bottom: 5rem;
}
#regions-graph--tso-role * {
  margin: 0;
  padding: 0;
  color: white;
}
#regions-graph--tso-role div {
  padding: 1rem .25rem;
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}
#regions-graph--tso-role span {
  font-size: 1rem;
  font-weight: 400;
}
#regions-graph--tso-role div:nth-child(1) {
  background: var(--green-color);
}
#regions-graph--tso-role div:nth-child(2) {
  background: var(--blue-color);
}
#regions-graph--tso-role div:nth-child(3) {
  background: var(--cyan-color);
}
#regions-graph--tso-role h4 {
  font-size: 1.5rem;
  line-height: 1.7rem;
  font-weight: 400;
}

#regions-roles mark {
  background: var(--nc-orange-color); 
  padding: .25rem 0.5rem;
  color: white;
  border-radius: 3px;
}
#regions-graph--rsc-offer {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: .5rem;
  color: white;
  background-color: white;
  margin: 2rem 1rem;
}
#regions-graph--rsc-offer li {
  text-align: center;
  padding: .5rem;
  font-weight: 400;
  font-size: 1.2rem;
  background: var(--nc-orange-color);
  box-shadow: var(--card-box-shadow);
  border-radius: 3px;
}

#regions--entsoe-role {
  margin: 3rem 0 6rem 0;
}
.grid-videos-3 {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
}
.grid-videos-3 h3 {
  margin-bottom: 0;
}
.grid-videos-3 div {
  position: relative;
}
.grid-videos-3 div a {
  height: 270px;
  clip-path: polygon(0 0, 100% 0%, 100% 80%, 0% 100%);
}
#regions--entsoe-role .play {
  border-radius: 30px;
  position: absolute;
  left: 10%;
  top: 40%;
  background-color: rgba(255 255 255/.8);
  aspect-ratio: 1;
  display: inline-flex;
  align-items: center;
}
.button.stroke {
  background-color: transparent;
  box-shadow: 0 0 0 5px var(--green-color) inset;
  color: var(--green-color);
}
.grid-pics-2 {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr));
}



/** ========================================
    Responsive
========================================= */

@media only screen and (max-width: 1440px) {
  #grid-rscs {
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(min(330px, 100%), 1fr));
    padding: 0 2rem 0 0;
  }
}

@media only screen and (max-width: 1280px) {
  #regions-rscs {
    grid-template-columns: 1fr 3fr;
    gap: 2rem;
    padding: 0;
  }
  #grid-rscs {
    padding: 0;
  }
}

@media only screen and (max-width: 1024px) {
  #regions-rscs {
    grid-template-columns: 1fr;
    gap: 0;
    margin: 2rem 0;
    width: 100%;
  }
  #regions-rscs > img {
    display: none;
  }
  #grid-rscs {
    margin: 0;
    padding: 2rem 1.5rem;
  }
  .h2-rsc,
  #regions-rscs h4 {
    text-align: center;
  }
  .grid-videos-3 {
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  }
}


/* iPad portrait mode */
@media only screen and (max-width: 768px) {
  #regions-header {
    padding: 1rem 1rem 1rem .5rem;
  }
  #regions-header--hero {
    grid-template-columns: 1fr;
    gap: 0;
    font-size: .9rem;
  }
  #regions-header h1 {
    font-size: 2.1rem;
    padding: 1.5rem 0;
    line-height: 3rem;
    white-space: unset;
  }
  #regions-header p {
    padding-left: 0.2rem;
    font-size: .9rem;
    letter-spacing: 0;
  }
  #regions-history--timeline:before {
    left: -1.5rem;
  }
  #regions-history--timeline {
    display: grid;
  }
  #regions-history--timeline li {
    padding: 0;
  }
  .direction-l,
  .direction-r {
    float: none;
  }
  #regions-history--timeline .direction-l, 
  #regions-history--timeline .direction-r {
    width: 100%;
  }
  .direction-l .milestone-details {
    grid-column: 1/2;
    text-align: left;
  }
  .direction-l .milestone-rsc {
    grid-column: 2/3;
  }
  .direction-l .milestone:before, 
  .direction-r .milestone:before {
    left: -40px;
  }
  .direction-r .milestone:after {
    right: 100%;
  }
  .direction-l .milestone:after {
    left: -1rem;
    transform: rotate(180deg);
  }
  #timeline-details {
    width: 70ch;
  }
  .h2-rsc {
    font-size: 2rem;
    text-align: left;
    padding-left: 1.5rem;
  }
  #regions-rscs h4 {
    text-align: left;
    padding-left: 1.5rem;
  }
  #grid-rscs {
    gap: 1rem;
    grid-template-columns: 1fr;
  }
  #grid-rscs li {
    font-size: 1.1rem;
  }
  #grid-rscs a {
    display: grid;
    grid-template-columns: 25% 75%;
    gap: 1rem;
    align-items: center;
  }
  #grid-rscs li span {
    display: inline-block;
    height: fit-content;
  }
  #grid-rscs .dl-horizontal {
    margin-top: 1rem;
    margin-bottom: 0;
  }
  #grid-rscs .dl-horizontal dt {
    width: 25%;
  }
  #grid-rscs .dl-horizontal dd {
    width: 75%;
    padding-left: 1rem;
  }
  #grid-rscs .dl-horizontal a {
    display: inline-block;
  }
  #grid-rscs .ee-icon-envelope {
    bottom: -3px;
  }
  #regions-roles {
    padding: 1rem 0 1rem 1rem;
  }
  #regions--entsoe-role {
    margin: 2rem 0 3rem 0;
  }
  #regions-graph--tso-role {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 96%;
    margin: 1rem 0 2.5rem 1rem;
  }
  #regions-graph--tso-role div {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: left;
    text-align: left;
  }
  #regions-graph--tso-role h4 {
    display: inline-block;
    font-size: 1.2rem;
    padding-left: 1rem;
  }
  #regions-graph--tso-role span {
    display: inline-block;
    font-size: .9rem;
    margin-left: 2rem;
  }
  #regions-graph--rsc-offer {
    max-width: 96%;
    grid-auto-flow: row;
    gap: .1rem;
    margin: 1rem 0 2.5rem 1rem;
  }
  .grid-videos-3 {
    grid-template-columns: 1fr;
  }
  .grid-pics-2 {
    display: block;
  }
  #regions-roles figcaption {
    display: none;
  }
  #fig-rsc-support {
    display: none;
  }
}

/* Smartphones */
@media only screen and (max-width: 428px) {
  .h2-rsc {
    font-size: 1.5rem;
    line-height: 1.7rem;
    margin-bottom: 1.3rem;
    padding-left: 0;
  }
  .h4-rsc {
    font-size: 1.1rem;
    margin-bottom: .5rem;
  }
  #regions-header #diagram-wrapper,
  #regions-header aside {
    display: none;
  }
  #grid-rscs li {
    padding: 1.5rem 0 1.5rem 1.5rem;
  }
  #grid-rscs a {
    display: block;
    text-align: left;
  }
  #grid-rscs a span:first-of-type {
    display: none;
  }
  #grid-rscs .dl-horizontal dt:last-of-type,
  #grid-rscs .dl-horizontal dd:last-of-type {
    float: none;
    display: block;
    width: 100%;
    padding: 0;
    margin: 0;
  }
  #grid-rscs .dl-horizontal dd a {
    color: var(--blue-color);
  }
}

@media only screen and (max-width: 428px) {
  #regions-rscs .h2-rsc {
    padding-left: 1.5rem;
  }
  #grid-rscs {
    margin: 0;
    padding: 1rem 0 2rem 1rem;
  }
  #regions-history--timeline li img {
    max-width: 100px;
    max-height: 40px;
    margin: .25rem 0;
  }
  #regions-history--timeline {
    margin-right: 0;
  }
}