:root {
  --quickstart-header: 4.5rem;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--vie-canvas);
}

body {
  min-height: 100svh;
  margin: 0;
  background:
    radial-gradient(circle at 88% 4%, rgb(14 72 122 / 9%), transparent 28rem),
    var(--vie-canvas);
  color: var(--vie-ink);
  font-family: var(--vie-font-system);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.quickstart-bar {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--quickstart-header);
  padding: 0 clamp(1.25rem, 3.8vw, 4rem);
  border-bottom: 1px solid var(--vie-line);
  background: var(--vie-frost);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
}

.quickstart-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.65rem;
  color: var(--vie-ink);
  text-decoration: none;
}

.quickstart-brand strong {
  font-size: 1.42rem;
  font-weight: 760;
  letter-spacing: -0.055em;
}

.quickstart-brand span,
.quickstart-meta,
.console-kicker,
.contract-list span {
  color: var(--vie-muted);
  font-size: 0.67rem;
  font-weight: 760;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quickstart-docs {
  color: var(--vie-muted);
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease;
}

.quickstart-docs:hover {
  color: var(--vie-ink);
}

.quickstart-main {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(28rem, 1.18fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
  width: min(78rem, calc(100% - 3rem));
  min-height: calc(100svh - var(--quickstart-header));
  margin: 0 auto;
  padding: clamp(3rem, 7vh, 6.5rem) 0;
}

.quickstart-intro {
  max-width: 34rem;
  animation: quickstart-enter 560ms var(--vie-ease-out) both;
}

.quickstart-meta {
  margin: 0;
  color: var(--vie-accent);
}

.quickstart-intro h1 {
  max-width: 10ch;
  margin: 1rem 0 1.4rem;
  font-size: clamp(3rem, 5.2vw, 5.65rem);
  font-weight: 680;
  letter-spacing: -0.067em;
  line-height: 0.91;
}

.quickstart-intro > p:not(.quickstart-meta) {
  max-width: 47ch;
  margin: 0;
  color: var(--vie-muted);
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.62;
}

.contract-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: clamp(2.2rem, 5vh, 3.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--vie-line);
  list-style: none;
}

.contract-list li {
  min-width: 0;
  padding: 1rem 0.7rem 0 0;
}

.contract-list li + li {
  padding-left: 0.9rem;
  border-left: 1px solid var(--vie-line);
}

.contract-list strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.84rem;
  font-weight: 660;
  line-height: 1.35;
}

.quickstart-console {
  position: relative;
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--vie-line);
  border-radius: var(--vie-radius-panel);
  background: rgb(255 255 255 / 90%);
  box-shadow: var(--vie-shadow-float);
  animation: quickstart-enter 620ms 80ms var(--vie-ease-out) both;
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  padding: 0 1.4rem;
  border-bottom: 1px solid var(--vie-line);
  background: rgb(247 247 243 / 74%);
}

.console-header > div {
  display: flex;
  align-items: center;
  gap: 0.72rem;
  min-width: 0;
}

.console-header strong {
  overflow: hidden;
  font-size: 0.88rem;
  font-weight: 680;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.console-status {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  color: var(--vie-muted);
  font-size: 0.72rem;
  white-space: nowrap;
}

.console-status::before {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--vie-accent);
  box-shadow: 0 0 0 0.25rem rgb(14 72 122 / 9%);
  content: "";
}

.quickstart-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.quickstart-action h2 {
  max-width: 14ch;
  margin: 0.45rem 0 0;
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  font-weight: 650;
  letter-spacing: -0.048em;
  line-height: 1;
}

#choose {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 3.25rem;
  padding: 0 1.25rem;
  border: 1px solid var(--vie-ink);
  border-radius: var(--vie-radius-control);
  background: var(--vie-ink);
  color: var(--vie-paper);
  cursor: pointer;
  font: 700 0.82rem/1 var(--vie-font-system);
  transition: background 180ms ease, color 180ms ease, transform 120ms ease-out;
}

#choose span[aria-hidden="true"] {
  font-size: 1rem;
  transition: transform 180ms var(--vie-ease-out);
}

#choose:hover:not(:disabled) {
  background: var(--vie-accent);
  border-color: var(--vie-accent);
}

#choose:hover:not(:disabled) span[aria-hidden="true"] {
  transform: translateX(0.18rem);
}

#choose:active:not(:disabled) {
  transform: scale(var(--vie-press-scale));
  transition-duration: 80ms;
}

#choose:focus-visible {
  outline: 3px solid var(--vie-focus);
  outline-offset: 3px;
}

#choose:disabled {
  cursor: wait;
  opacity: 0.58;
}

.result-shell {
  padding: 0 clamp(1.5rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 2.5rem);
}

.result-shell > span {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--vie-muted);
  font-size: 0.68rem;
  font-weight: 720;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

#result {
  min-height: 11rem;
  max-height: min(42vh, 25rem);
  margin: 0;
  padding: 1.25rem;
  overflow: auto;
  border: 1px solid var(--vie-line);
  border-radius: calc(var(--vie-radius-control) + 0.1rem);
  background: #111817;
  color: #dce9e6;
  font: 0.78rem/1.65 var(--vie-font-mono);
  white-space: pre-wrap;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

#result[data-state="loading"] {
  border-color: var(--vie-accent);
  box-shadow: inset 0 3px 0 var(--vie-accent);
}

#result[data-state="selected"] {
  border-color: var(--vie-success);
  box-shadow: inset 0 3px 0 var(--vie-success);
}

#result[data-state="error"] {
  border-color: var(--vie-danger);
  box-shadow: inset 0 3px 0 var(--vie-danger);
}

@keyframes quickstart-enter {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .quickstart-main {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: start;
    width: min(42rem, calc(100% - 2rem));
    padding: 3.2rem 0 4rem;
  }

  .quickstart-intro h1 {
    max-width: 12ch;
  }
}

@media (max-width: 540px) {
  .quickstart-bar {
    min-height: 4rem;
    padding: 0 1rem;
  }

  .quickstart-brand strong {
    font-size: 1.24rem;
  }

  .quickstart-brand span {
    font-size: 0.58rem;
  }

  .quickstart-main {
    min-height: auto;
    padding-top: 2.4rem;
  }

  .quickstart-intro h1 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .contract-list {
    grid-template-columns: 1fr;
  }

  .contract-list li,
  .contract-list li + li {
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 1fr);
    gap: 0.7rem;
    padding: 0.8rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--vie-line);
  }

  .contract-list strong {
    margin: 0;
  }

  .quickstart-console {
    border-radius: 1rem;
  }

  .console-header {
    padding: 0 1rem;
  }

  .console-kicker {
    display: none;
  }

  .quickstart-action {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    align-items: start;
    padding: 1.4rem 1rem 1.7rem;
  }

  #choose {
    width: 100%;
  }

  .result-shell {
    padding: 0 1rem 1rem;
  }

  #result {
    min-height: 9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .quickstart-intro,
  .quickstart-console {
    animation: none;
  }

  #choose,
  #choose span[aria-hidden="true"] {
    transition: none;
  }

  #choose:active:not(:disabled),
  #choose:hover:not(:disabled) span[aria-hidden="true"] {
    transform: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .quickstart-bar,
  .quickstart-console {
    background: var(--vie-paper);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-contrast: more) {
  .quickstart-console,
  #result,
  #choose {
    border-width: 2px;
  }
}