.collaboration-trigger-container {
  display: flex;
  align-items: center;
  width: max-content;
  height: 50px;
  padding: 7px 8px;
  box-sizing: border-box;
}

.collaboration-trigger {
  --trigger-rim: rgb(255 255 255 / 65%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  min-width: 93px;
  height: 36px;
  min-height: 0;
  margin: 0;
  padding: 0 18px;
  box-sizing: border-box;
  border: 0;
  border-radius: 24px;
  color: #fff;
  background: linear-gradient(180deg, #2e2e2e 0%, #141414 100%);
  box-shadow: inset 0 .2px 2px var(--trigger-rim);
  cursor: pointer;
  font: 600 13px/1.2 var(--font-latin);
  letter-spacing: 0;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform 240ms cubic-bezier(.23, 1, .32, 1), box-shadow 200ms ease;
}

:root[lang^="zh"] .collaboration-trigger {
  font-family: "MiSans VF", "PingFang SC", "Noto Sans SC", sans-serif;
}

:root[data-theme="dark"] .collaboration-trigger {
  --trigger-rim: #fff;
  color: #141414;
  background: linear-gradient(180deg, #d4d4d4 0%, #fff 100%);
  box-shadow: inset 0 .2px 2px #fff;
}

.collaboration-trigger .button-label { position: relative; z-index: 1; }

.collaboration-trigger .glow {
  position: absolute;
  pointer-events: none;
  left: 50%;
  top: 50%;
  width: 96px;
  height: 84px;
  border-radius: 50%;
  transform: translate3d(-48px, -42px, 0);
  background: radial-gradient(ellipse, rgb(255 255 255 / 27%) 0%, rgb(255 255 255 / 10%) 34%, transparent 70%);
  opacity: 0;
  transition: opacity 180ms ease;
}

:root[data-theme="dark"] .collaboration-trigger .glow {
  background: radial-gradient(ellipse, rgb(115 115 115 / 16%) 0%, rgb(115 115 115 / 9%) 35%, rgb(115 115 115 / 3%) 60%, rgb(115 115 115 / 0%) 80%);
}

@media (hover: hover) and (pointer: fine) {
  .collaboration-trigger.is-lit .glow { opacity: 1; transition-duration: 240ms; }
  .collaboration-trigger.is-lit {
    transform: scale(1.03);
    box-shadow: inset 0 .2px 2px var(--trigger-rim), 0 5px 12px rgb(0 0 0 / 16%);
  }
  :root[data-theme="dark"] .collaboration-trigger.is-lit { box-shadow: inset 0 .2px 2px #fff; }
}

.collaboration-trigger:active,
.collaboration-trigger.is-lit:active { transform: scale(.98); transition-duration: 100ms; }

@media (prefers-reduced-motion: reduce) {
  .collaboration-trigger { transition: none; }
  .collaboration-trigger.is-lit,
  .collaboration-trigger:active,
  .collaboration-trigger.is-lit:active { transform: none; }
}

.collaboration-trigger:focus-visible,
.collaboration-close:focus-visible,
.collaboration-step button:focus-visible,
.collaboration-restart:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.collaboration-wall {
  width: 100%;
  height: 100px;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.collaboration-wall-title {
  display: flex;
  align-items: center;
  height: 50px;
  margin: 0;
  padding: 0 8px;
  color: var(--muted);
  font: 600 13px/1.3 var(--font-latin);
  letter-spacing: .01em;
}

.collaboration-logo-rail {
  position: relative;
  width: 100%;
  height: 50px;
  overflow: hidden;
  /* Fade the entire moving layer; keep a clear guard at both clip edges. */
  -webkit-mask-image: linear-gradient(to right, transparent 0 2px, #000 50px, #000 calc(100% - 50px), transparent calc(100% - 2px) 100%);
  mask-image: linear-gradient(to right, transparent 0 2px, #000 50px, #000 calc(100% - 50px), transparent calc(100% - 2px) 100%);
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.collaboration-logo-track {
  display: flex;
  align-items: center;
  width: max-content;
  height: 50px;
  animation: collaboration-logo-loop 24.8s linear infinite;
  will-change: transform;
}

.collaboration-logo-set {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.collaboration-logo-set > span,
.collaboration-logo-button {
  display: grid;
  flex: 0 0 150px;
  height: 50px;
  place-items: center;
}

.collaboration-logo-button {
  width: 150px;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  cursor: default;
}

.collaboration-logo-button:focus-visible {
  outline: 1px solid var(--muted);
  outline-offset: -4px;
  border-radius: 6px;
}

.collaboration-wall.is-logo-paused .collaboration-logo-track {
  animation-play-state: paused;
}

.collaboration-wall.is-logo-keyboard .collaboration-logo-track {
  animation: none;
}

.collaboration-logo-tooltip {
  position: fixed;
  z-index: 50;
  width: max-content;
  max-width: min(280px, calc(100vw - 24px));
  box-sizing: border-box;
  padding: 7px 11px;
  border: 1px solid var(--social-popover-border);
  border-radius: 8px;
  background: var(--social-popover-bg);
  color: var(--social-text-default);
  filter: drop-shadow(0 3px 8px rgb(0 0 0 / 10%));
  font: 500 13px/1.4 var(--font-latin);
  text-align: center;
}

.collaboration-logo-tooltip[hidden] { display: none; }

.collaboration-logo-tooltip::after {
  content: '';
  position: absolute;
  left: var(--arrow-x, 50%);
  bottom: -6px;
  width: 10px;
  height: 10px;
  background: var(--social-popover-bg);
  border-right: 1px solid var(--social-popover-border);
  border-bottom: 1px solid var(--social-popover-border);
  border-bottom-right-radius: 2px;
  transform: translateX(-50%) rotate(45deg);
}

.collaboration-logo-tooltip[data-placement='bottom']::after {
  top: -6px;
  bottom: auto;
  transform: translateX(-50%) rotate(225deg);
}

.collaboration-logo-set img {
  display: block;
  width: 150px;
  height: 50px;
  filter: brightness(0) invert(.55);
}

:root[data-theme="dark"] .collaboration-logo-set img {
  filter: brightness(0) invert(1);
}

@keyframes collaboration-logo-loop {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Contact sheet — aligned with the three Figma states. */
.collaboration-drawer {
  --inquiry-card: var(--background-default);
  --surface: var(--social-background-subtle);
  --inquiry-wash: rgb(0 0 0 / 4%);
  --inquiry-field-fill: color-mix(in srgb, var(--inquiry-card) 96%, #000);
  --inquiry-radio: var(--border-subtler);
  position: fixed;
  inset: auto 0 0;
  margin: 0 auto;
  width: min(460px, 100vw);
  max-width: none;
  max-height: calc(100dvh - 24px);
  box-sizing: border-box;
  padding: 24px 24px max(20px, env(safe-area-inset-bottom));
  border: 0;
  color: var(--ink);
  background: transparent;
  box-shadow: none;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  font: 400 13px/1.4 var(--font-latin);
}
:root[data-theme="dark"] .collaboration-drawer {
  --inquiry-wash: rgb(255 255 255 / 4%);
  --inquiry-field-fill: color-mix(in srgb, var(--inquiry-card) 96%, #fff);
}
.collaboration-drawer:not([open]) { display: none; }
.collaboration-drawer::backdrop {
  background: rgb(21 23 22 / 14%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 240ms ease;
}
.collaboration-drawer[open] {
  transform: translateY(calc(100% + 32px));
  opacity: 0;
  transition: transform 380ms cubic-bezier(.22, 1, .36, 1), opacity 240ms ease;
}
.collaboration-drawer[open].is-visible { transform: translateY(0); opacity: 1; }
.collaboration-drawer.is-visible::backdrop { opacity: 1; }
.collaboration-drawer.is-closing { transition-duration: 220ms, 180ms; }
/* Let the sheet enter first, then reveal its contents without shifting layout. */
.collaboration-drawer .collaboration-step > :not(.visually-hidden) {
  opacity: 0;
  transition: opacity 160ms cubic-bezier(.22, 1, .36, 1);
}
.collaboration-drawer.is-visible .collaboration-step > :not(.visually-hidden) {
  opacity: 1;
  transition-duration: 280ms;
  transition-delay: 80ms;
}
.collaboration-drawer-copy.visually-hidden { padding: 0; }
.collaboration-flow {
  position: relative;
  margin: 0;
  min-width: 0;
  border-radius: 16px;
  background: var(--inquiry-card);
  box-shadow: 0 3px 4px rgb(21 23 22 / 9%);
  overflow: hidden;
}
.collaboration-flow::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--navigation-border, #fff);
  border-radius: inherit;
  pointer-events: none;
}
.collaboration-progress {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  height: 18px;
  padding: 0 6px;
  border-radius: 4px;
  background: var(--surface);
  color: var(--muted);
  font: 500 11px/1.4 var(--font-latin);
}
.collaboration-step {
  min-width: 0;
  margin: 0;
  padding: 16px 8px;
  border: 0;
  border-radius: 16px;
  background: transparent;
}
.collaboration-step[hidden], .collaboration-explore[hidden] { display: none; }
.collaboration-step > legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  float: left;
  box-sizing: border-box;
  width: calc(100% - 16px);
  margin: 0 8px 11.8px;
  padding: 0;
  color: var(--ink);
  font: 500 15px/23px var(--font-latin);
  letter-spacing: 0;
}
.collaboration-step > legend + * { clear: both; }
.collaboration-step > legend[tabindex="-1"]:focus { outline: none; }
.collaboration-problems { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px; }
.collaboration-problems label {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 8px;
  box-sizing: border-box;
  border-radius: 8px;
  cursor: pointer;
  font: 400 13px/1.4 var(--font-latin);
  transition: background-color 160ms ease;
}
.collaboration-problems input {
  appearance: none;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 1px solid var(--inquiry-radio);
  border-radius: 50%;
  background: transparent;
}
.collaboration-problems input:checked { border: 5px solid var(--ink); }
.collaboration-problems label:has(input:checked) { background: var(--surface); }
.collaboration-primary-choices label { position: relative; }
.collaboration-primary-choices input + span { min-width: 0; margin-right: 36px; }
.collaboration-choice-arrow {
  position: absolute;
  right: 8px;
  top: calc(50% - 14px);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity 140ms ease, transform 140ms cubic-bezier(.22, 1, .36, 1);
  pointer-events: none;
}
.collaboration-primary-choices label:has(input:focus-visible) { background: var(--surface); }
.collaboration-primary-choices label:has(input:focus-visible) .collaboration-choice-arrow { opacity: 1; transform: none; }
@media (hover: hover) and (pointer: fine) {
  .collaboration-problems label:hover,
  .collaboration-back:hover { background: var(--inquiry-wash); }
  .collaboration-drawer .collaboration-primary-choices label:hover { background: var(--surface); }
  .collaboration-primary-choices label:hover .collaboration-choice-arrow { opacity: 1; transform: none; }
}
.collaboration-explore {
  min-width: 0;
  margin: 16px 8px 0;
  padding: 16px 0 0;
  border: 0;
  border-top: 1px solid var(--line);
}
.collaboration-explore legend {
  float: left;
  width: 100%;
  margin: 0 0 8px;
  padding: 0;
  font: 500 13px/18px var(--font-latin);
}
.collaboration-explore > legend + * { clear: both; }
.collaboration-step.has-explore {
  max-height: min(300px, calc(100dvh - 140px));
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-width: none;
}
.collaboration-step.has-explore::-webkit-scrollbar { display: none; }
.collaboration-problem-error, .collaboration-explore-error { margin: 8px; font-size: 12px; }
.collaboration-contact-step { padding-bottom: 0; }
.collaboration-field {
  display: grid;
  min-width: 0;
  gap: 8px;
  padding: 8px;
  margin: 0 0 2px;
  font: 500 13px/18px var(--font-latin);
}
.collaboration-field input,
.collaboration-field textarea {
  display: block;
  width: 100%;
  height: 36px;
  min-width: 0;
  box-sizing: border-box;
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  background: var(--inquiry-wash);
  color: var(--ink);
  font: 400 13px/1.4 var(--font-latin);
}
@media (hover: hover) and (pointer: fine) {
  .collaboration-field :is(input, textarea):hover:not(:focus) {
    --inquiry-field-fill: color-mix(in srgb, var(--inquiry-card) 92%, var(--ink));
    background: var(--inquiry-field-fill);
  }
}
.collaboration-field :is(input, textarea):is(:autofill, :-webkit-autofill) {
  /* Autofill backgrounds are browser !important rules; paint above them. */
  box-shadow: inset 0 0 0 1000px var(--inquiry-field-fill);
  -webkit-text-fill-color: var(--ink);
  caret-color: var(--ink);
}
@media (forced-colors: active) {
  .collaboration-field :is(input, textarea):is(:autofill, :-webkit-autofill) {
    -webkit-text-fill-color: CanvasText;
    caret-color: CanvasText;
  }
}
.collaboration-field input::placeholder,
.collaboration-field textarea::placeholder { color: var(--quiet); opacity: 1; }
.collaboration-field textarea { height: 112px; min-height: 112px; max-height: 180px; resize: vertical; }
.collaboration-extra { margin: 0; padding: 8px; color: var(--muted); font: 500 13px/18px var(--font-latin); }
.collaboration-extra summary { display: flex; align-items: center; gap: 4px; list-style: none; cursor: pointer; }
.collaboration-extra summary::-webkit-details-marker { display: none; }
.collaboration-note-arrow { flex: 0 0 14px; }
.collaboration-extra[open] .collaboration-note-arrow { transform: rotate(90deg); }
.collaboration-extra .collaboration-field { padding: 0; margin: 8px 0 0; }
.collaboration-send-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 11.8px -8px 0;
  padding: 8px 16px;
  border-top: 1px solid var(--inquiry-wash);
  border-radius: 0 0 16px 16px;
  background: var(--inquiry-wash);
}
.collaboration-back, .collaboration-send {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  gap: 4px;
  height: 36px;
  box-sizing: border-box;
  border-radius: 24px;
  cursor: pointer;
  font: 600 13px/1.4 var(--font-latin);
}
.collaboration-back { padding: 0 16px 0 12px; border: 1px solid var(--inquiry-wash); background: transparent; color: var(--ink); }
.collaboration-back svg { transform: rotate(180deg); }
.collaboration-send {
  padding: 0 16px;
  border: 0;
  background: linear-gradient(180deg, #2e2e2e, #141414);
  color: #fff;
  box-shadow: inset 0 .2px 2px #fff;
  transition: transform 240ms cubic-bezier(.23, 1, .32, 1);
}
@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .collaboration-send:not(:disabled):not(:active):hover { transform: scale(1.03); }
}
:root[data-theme="dark"] .collaboration-send:not(:disabled) {
  background: linear-gradient(180deg, #fff, #f2f2f2);
  color: #151716;
  box-shadow: inset 0 -.5px 1.5px rgb(0 0 0 / 16%);
}
.collaboration-send:disabled { background: #989b99; color: #bac2be; box-shadow: none; cursor: not-allowed; }
:root[data-theme="dark"] .collaboration-send:disabled { background: #232323; color: var(--text-disabled); }
.collaboration-bottom-actions { display: flex; justify-content: center; margin-top: 12px; }
.collaboration-close {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--paper);
  color: var(--muted);
  cursor: pointer;
}
@media (min-width: 741px) and (hover: hover) and (pointer: fine) {
  .collaboration-close {
    position: relative;
    transition: background-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
  }
  .collaboration-close::after {
    content: "";
    position: absolute;
    inset: -4px;
    border-radius: inherit;
  }
  /* Keep an opaque surface over the blurred artwork, including on hover. */
  .collaboration-close:hover {
    background: #e4e5e4;
    color: var(--ink);
    box-shadow: 0 0 0 1px rgb(0 0 0 / 6%), 0 2px 6px rgb(0 0 0 / 8%);
  }
  :root[data-theme="dark"] .collaboration-close:hover {
    background: #232323;
    box-shadow: 0 0 0 1px rgb(255 255 255 / 10%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .collaboration-close { transition: none; }
}
.collaboration-mail-status { margin: 0; padding: 12px 8px; color: var(--muted); font-size: 11px; }
.collaboration-send[data-state="sending"]:disabled { background: #151716; color: #fff; cursor: wait; }
:root[data-theme="dark"] .collaboration-send[data-state="sending"]:disabled { background: #f2f2f2; color: #151716; }
.collaboration-send[data-state="sending"] > svg { display: none; }
.collaboration-send[data-state="sending"]::after {
  content: "";
  width: 12px;
  height: 12px;
  margin-left: 3px;
  border: 1.5px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: collaboration-spin .65s linear infinite;
}
@keyframes collaboration-spin { to { transform: rotate(360deg); } }
.collaboration-success-toast {
  --toast-background: #fff;
  position: fixed;
  z-index: 1000;
  /* 56px bottom navigation + 20px gap; matches the 1440 × 900 design. */
  bottom: calc(var(--footer-tabbar-bottom, 30px) + var(--footer-tabbar-height, 56px) + 20px);
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: max-content;
  min-height: 40px;
  max-width: calc(100vw - 32px);
  box-sizing: border-box;
  padding: 10.9px 12px;
  border: 0;
  border-radius: 99px;
  background: var(--toast-background);
  color: var(--text-default);
  box-shadow: var(--social-popover-shadow);
  font: 500 13px/1.4 var(--font-latin);
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 260ms cubic-bezier(.22, 1, .36, 1), visibility 0s 260ms;
}
.collaboration-success-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  pointer-events: auto;
  transition-delay: 0s;
}
.collaboration-success-toast p { margin: 0; min-width: 0; }
.collaboration-success-icon { display: block; flex-shrink: 0; width: 16px; height: 16px; }
.collaboration-success-icon--dark { display: none; }
:root[data-theme="dark"] .collaboration-success-toast { --toast-background: #141414; }
:root[data-theme="dark"] .collaboration-success-icon--light { display: none; }
:root[data-theme="dark"] .collaboration-success-icon--dark { display: block; }
@media (prefers-reduced-motion: reduce) {
  .collaboration-success-toast { transform: translate(-50%, 0); transition: opacity 150ms ease, visibility 0s 150ms; }
  .collaboration-send[data-state="sending"]::after { animation: none; }
}
.collaboration-drawer button:not(:disabled):active { transform: scale(.98); }
.collaboration-drawer button:focus-visible,
.collaboration-drawer summary:focus-visible,
.collaboration-problems input:focus-visible { outline: 2px solid var(--muted); outline-offset: 3px; }
.collaboration-field textarea:focus-visible,
.collaboration-field input:focus-visible { outline: 1px solid var(--quiet); outline-offset: 0; }
body.collaboration-drawer-open { overflow: hidden; }
@media (max-width: 740px) {
  .collaboration-trigger-container { padding-block: 5px; }
  .collaboration-trigger { height: 40px; }
  .collaboration-close { width: 44px; height: 44px; }
  .collaboration-close svg { width: 20px; height: 20px; }

  /* Figma mobile: an 8px outer inset and 8px inside the profile rows.
     Keep the CTA in document flow so longer/localized copy never overlaps it. */
  #main:not(.subpage-main) .intro:has(.collaboration-trigger) {
    width: calc(100vw - 16px);
    margin-left: calc(8px - var(--content-origin-x));
  }

  #main:not(.subpage-main) .intro-description {
    gap: 10px;
    padding: 8px;
    line-height: 23px;
  }

  .collaboration-success-toast {
    /* The 393px frame places the 302px toast at x=45px. */
    left: calc(50% - .5px);
  }

  /* Keep iOS inputs at 16px so focusing a field does not zoom the sheet. */
  .collaboration-field textarea, .collaboration-field input { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .collaboration-logo-track { animation: none; }
  .collaboration-drawer[open], .collaboration-drawer::backdrop { transition: none; }
  .collaboration-drawer .collaboration-step > :not(.visually-hidden) { transition: none; }
  .collaboration-choice-arrow { transition: none; transform: none; }
}