/* AKAVA ScrollTop build page: the page itself is the demo. */

.akava-build-back-to-top {
  --scroll-ink: #111510;
  --scroll-paper: #eef6e8;
  --scroll-accent: #b9ff65;
  --scroll-blue: #3068ff;
  background: var(--scroll-paper);
  color: var(--scroll-ink);
}

.scrolltop-page {
  position: relative;
  overflow: clip;
  background:
    linear-gradient(90deg, rgba(17, 21, 16, .06) 1px, transparent 1px),
    var(--scroll-paper);
  background-size: 56px 56px;
}

.scrolltop-hero {
  position: relative;
  min-block-size: calc(100dvh - 64px);
  display: grid;
  grid-template-columns: minmax(240px, .55fr) minmax(0, 1.45fr);
  align-items: end;
  gap: clamp(30px, 7vw, 100px);
  inline-size: min(1400px, calc(100% - 40px));
  margin-inline: auto;
  padding-block: clamp(50px, 8vw, 110px);
}

.scrolltop-hero__mark {
  font: 900 clamp(13rem, 31vw, 34rem)/.65 var(--ak-font-sans);
  color: var(--scroll-accent);
  -webkit-text-stroke: 3px var(--scroll-ink);
  letter-spacing: -.12em;
  translate: -2vw 0;
}

.scrolltop-hero__copy {
  position: relative;
  z-index: 1;
  padding-block-end: 3vw;
}

.scrolltop-back,
.scrolltop-hero__copy > p,
.scrolltop-control-room > div > p,
.scrolltop-reading__header > p,
.scrolltop-summary > p,
.scrolltop-chapter {
  font: 800 .72rem/1.3 var(--ak-font-mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.scrolltop-back {
  display: inline-flex;
  min-block-size: 44px;
  align-items: center;
  color: #4c5949;
  text-decoration: none;
}

.scrolltop-hero__copy > p {
  margin: clamp(28px, 5vw, 58px) 0 14px;
  color: var(--scroll-blue);
}

.scrolltop-hero h1 {
  max-inline-size: 980px;
  margin: 0;
  font: 900 clamp(3.4rem, 8vw, 9.5rem)/.82 var(--ak-font-sans);
  letter-spacing: -.09em;
  text-wrap: balance;
}

.scrolltop-intro {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: end;
  margin-block-start: 34px;
  padding-block-start: 24px;
  border-block-start: 2px solid var(--scroll-ink);
}

.scrolltop-intro p {
  max-inline-size: 740px;
  margin: 0;
  color: #42503f;
  font-size: clamp(1.05rem, 1.55vw, 1.35rem);
}

.scrolltop-intro a {
  color: var(--scroll-ink);
  font: 800 .76rem/1.2 var(--ak-font-mono);
  text-decoration: none;
}

.scrolltop-control-room {
  position: sticky;
  inset-block-start: 64px;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr);
  gap: 30px;
  align-items: center;
  padding: 18px max(20px, calc((100vw - 1240px) / 2));
  border-block: 2px solid var(--scroll-ink);
  background: rgba(238, 246, 232, .92);
  backdrop-filter: blur(14px);
}

.admin-bar .scrolltop-control-room {
  inset-block-start: 96px;
}

.scrolltop-control-room h2 {
  margin: 4px 0 0;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 1;
}

.scrolltop-control-room > div > p {
  margin: 0;
  color: var(--scroll-blue);
}

.scrolltop-control-room form {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.scrolltop-control-room label {
  min-block-size: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid #899685;
  background: #f8fff3;
  font: 750 .7rem/1 var(--ak-font-mono);
  cursor: pointer;
}

.scrolltop-control-room input {
  inline-size: 18px;
  block-size: 18px;
  accent-color: var(--scroll-blue);
}

.scrolltop-control-room select {
  min-block-size: 32px;
  border: 1px solid var(--scroll-ink);
  color: var(--scroll-ink);
  background: #fff;
}

.scrolltop-reading {
  inline-size: min(890px, calc(100% - 40px));
  margin-inline: auto;
  padding-block: clamp(90px, 12vw, 170px);
}

.scrolltop-reading__header {
  margin-block-end: clamp(100px, 15vw, 210px);
}

.scrolltop-reading__header > p:first-child,
.scrolltop-summary > p,
.scrolltop-chapter {
  color: var(--scroll-blue);
}

.scrolltop-reading__header h2 {
  margin: 16px 0 24px;
  font-size: clamp(3rem, 7vw, 7rem);
  line-height: .88;
  letter-spacing: -.075em;
}

.scrolltop-reading__header > p:last-child {
  max-inline-size: 690px;
  color: #465343;
  font-size: 1.2rem;
}

.scrolltop-reading section {
  min-block-size: 78dvh;
  padding-block: clamp(50px, 8vw, 100px);
  border-block-start: 1px solid #9eaa99;
}

.scrolltop-reading h3 {
  max-inline-size: 760px;
  margin: 18px 0 30px;
  font-size: clamp(2.2rem, 5.5vw, 5rem);
  line-height: .93;
  letter-spacing: -.065em;
}

.scrolltop-reading section > p,
.scrolltop-reading blockquote {
  max-inline-size: 700px;
  font-size: clamp(1.05rem, 1.45vw, 1.25rem);
  line-height: 1.75;
}

.scrolltop-reading blockquote {
  margin: 46px 0;
  padding: 24px 28px;
  border: 2px solid var(--scroll-ink);
  background: var(--scroll-accent);
  box-shadow: 8px 8px 0 var(--scroll-ink);
  font-weight: 800;
}

.scrolltop-measure {
  display: grid;
  grid-template-columns: .35fr 1.8fr .45fr;
  margin-block-start: 56px;
  border: 2px solid var(--scroll-ink);
  background: #fff;
}

.scrolltop-measure span {
  grid-column: 1 / -1;
  padding: 8px 12px;
  border-block-end: 1px solid var(--scroll-ink);
  font: 800 .68rem/1 var(--ak-font-mono);
}

.scrolltop-measure b,
.scrolltop-measure strong {
  min-block-size: 90px;
  display: grid;
  place-items: center;
  padding: 12px;
  border-inline-end: 1px solid var(--scroll-ink);
  font-size: .8rem;
  text-align: center;
}

.scrolltop-measure strong {
  color: #fff;
  background: var(--scroll-blue);
}

.scrolltop-obstacle {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-block-start: 70px;
  padding: 15px;
  border: 2px solid var(--scroll-ink);
  background: #fff;
  box-shadow: 10px 10px 0 rgba(17,21,16,.14);
}

.scrolltop-obstacle span {
  margin-inline-end: auto;
  font: 800 .68rem/1.2 var(--ak-font-mono);
}

.scrolltop-obstacle button {
  min-block-size: 44px;
  padding: 9px 14px;
  border: 1px solid var(--scroll-ink);
  color: #fff;
  background: var(--scroll-ink);
}

.scrolltop-profile-list {
  display: grid;
  gap: 0;
  margin: 50px 0 0;
  padding: 0;
  border-block-start: 2px solid var(--scroll-ink);
  list-style: none;
}

.scrolltop-profile-list li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-block-end: 1px solid #9eaa99;
}

.scrolltop-profile-list b {
  color: var(--scroll-blue);
  font-family: var(--ak-font-mono);
}

.scrolltop-summary {
  padding: clamp(90px, 13vw, 180px) max(20px, calc((100vw - 1240px) / 2));
  color: #fff;
  background: var(--scroll-ink);
}

.scrolltop-summary h2 {
  margin: 15px 0 50px;
  font-size: clamp(3rem, 8vw, 8rem);
  line-height: .85;
  letter-spacing: -.08em;
}

.scrolltop-summary div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.scrolltop-summary span {
  padding: 12px 16px;
  border: 1px solid #566054;
  color: var(--scroll-accent);
  font: 800 .72rem/1 var(--ak-font-mono);
}

.scrolltop-live-button {
  --scrolltop-dock-offset: 24px;
  position: fixed;
  z-index: 900;
  inset-inline-end: max(18px, env(safe-area-inset-right));
  inset-block-end: max(var(--scrolltop-dock-offset), env(safe-area-inset-bottom));
  min-inline-size: 70px;
  min-block-size: 70px;
  display: grid;
  place-items: center;
  padding: 8px;
  border: 2px solid var(--scroll-ink);
  border-radius: 50%;
  color: var(--scroll-ink);
  background: var(--scroll-accent);
  box-shadow: 6px 6px 0 var(--scroll-ink);
  cursor: pointer;
  transition: inset-block-end 180ms ease, border-radius 160ms ease, translate 130ms ease, box-shadow 130ms ease;
}

.scrolltop-live-button[hidden] {
  display: none;
}

.scrolltop-live-button[data-shape="rounded"] {
  border-radius: 18px;
}

.scrolltop-live-button[data-shape="square"] {
  border-radius: 2px;
}

.scrolltop-live-button:hover,
.scrolltop-live-button:focus-visible {
  translate: 2px 2px;
  box-shadow: 3px 3px 0 var(--scroll-ink);
}

.scrolltop-ring {
  position: absolute;
  inset: 2px;
  inline-size: calc(100% - 4px);
  block-size: calc(100% - 4px);
  rotate: -90deg;
}

.scrolltop-ring circle {
  fill: none;
  stroke: rgba(17, 21, 16, .18);
  stroke-width: 2.4;
}

.scrolltop-ring circle:last-child {
  stroke: var(--scroll-blue);
  stroke-dasharray: 182.22;
  stroke-dashoffset: 182.22;
  transition: stroke-dashoffset 90ms linear;
}

.scrolltop-live-button__icon {
  font: 900 1.45rem/1 var(--ak-font-sans);
}

.scrolltop-live-button__label {
  position: absolute;
  inset-inline-end: calc(100% + 10px);
  padding: 8px 10px;
  border: 1px solid var(--scroll-ink);
  color: #fff;
  background: var(--scroll-ink);
  font: 800 .64rem/1 var(--ak-font-mono);
  white-space: nowrap;
}

.scrolltop-state {
  position: fixed;
  z-index: 901;
  inset-inline-end: 18px;
  inset-block-end: 110px;
  max-inline-size: 280px;
  padding: 10px 12px;
  color: #fff;
  background: var(--scroll-blue);
  font: 700 .7rem/1.4 var(--ak-font-mono);
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease;
}

.scrolltop-state.is-visible {
  opacity: 1;
}

@media (max-width: 900px) {
  .scrolltop-hero {
    grid-template-columns: 1fr;
    align-items: center;
  }
  .scrolltop-hero__mark {
    position: absolute;
    inset-block-start: 12%;
    inset-inline-end: -3%;
    opacity: .38;
  }
  .scrolltop-control-room {
    grid-template-columns: 1fr;
  }
  .scrolltop-control-room form {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
  }
}

@media (max-width: 680px) {
  .scrolltop-hero h1 {
    font-size: clamp(3.35rem, 18vw, 5.7rem);
  }
  .scrolltop-intro {
    grid-template-columns: 1fr;
  }
  .scrolltop-control-room {
    inset-block-start: 102px;
    padding-inline: 14px;
  }
  .admin-bar .scrolltop-control-room {
    inset-block-start: 148px;
  }
  .scrolltop-control-room > div {
    display: none;
  }
  .scrolltop-reading section {
    min-block-size: auto;
    padding-block: 80px;
  }
  .scrolltop-profile-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .scrolltop-obstacle {
    align-items: stretch;
    flex-direction: column;
  }
  .scrolltop-live-button__label {
    display: none;
  }
}

.scrolltop-intro > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

@media (max-width: 680px) {
  .scrolltop-intro > div {
    justify-content: flex-start;
  }
}