:root {
  color-scheme: light dark;
  --page-top: #dce4e9;
  --page-bottom: #b9c2cb;
  --card: #f9f9f9;
  --ink: #fff;
  --muted: #63676b;
  --line: #c5c8cb;
  --bubble-top: #4ab4ff;
  --bubble-bottom: #087af3;
  --bubble-shadow: rgb(0 74 167 / 20%);
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  display: grid;
  min-width: 320px;
  min-height: 100vh;
  place-items: center;
  margin: 0;
  padding: 1.5rem;
  background:
    repeating-linear-gradient(0deg, rgb(255 255 255 / 11%) 0 1px, transparent 1px 3px),
    linear-gradient(to bottom, var(--page-top), var(--page-bottom));
  color: #24272a;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.desktop {
  position: relative;
  display: grid;
  width: min(100%, 58rem);
  min-height: min(40rem, calc(100vh - 3rem));
  place-items: center;
}

.card {
  position: relative;
  overflow: hidden;
  width: min(100%, 32rem);
  background: var(--card);
  border: 1px solid #989fa6;
  border-radius: 0.45rem;
  box-shadow: 0 0.7rem 2rem rgb(41 52 62 / 32%), 0 1px 0 rgb(255 255 255 / 92%) inset;
  transition: width 180ms ease, height 180ms ease;
}

.card.is-maximized { width: min(100%, 52rem); }
.card[hidden] { display: none; }

.window-bar {
  height: 1.8rem;
  border-bottom: 1px solid #aeb4b9;
  background:
    linear-gradient(to bottom, rgb(255 255 255 / 96%), rgb(227 230 232) 47%, rgb(202 207 211) 51%, rgb(234 236 237));
  cursor: grab;
  touch-action: none;
}

.window-bar:active { cursor: grabbing; }

.traffic-lights {
  position: absolute;
  top: 0.62rem;
  left: 0.75rem;
  display: flex;
  gap: 0.32rem;
}

.window-control {
  display: block;
  padding: 0;
  width: 0.63rem;
  height: 0.63rem;
  border: 1px solid rgb(104 96 90 / 52%);
  border-radius: 50%;
  background: #f66a5f;
  cursor: pointer;
}

.window-control.minimize { border-color: rgb(126 105 51 / 52%); background: #f8c64f; }
.window-control.maximize { border-color: rgb(76 104 75 / 52%); background: #55c958; }

.conversation {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.65rem;
  padding: 1.5rem;
}

.message {
  margin: 0;
  color: var(--ink);
  border: 1px solid rgb(0 88 194 / 38%);
  border-radius: 1.15rem;
  background: linear-gradient(to bottom, var(--bubble-top), var(--bubble-bottom));
  box-shadow: 0 1px 1px var(--bubble-shadow), 0 1px 0 rgb(255 255 255 / 35%) inset;
  text-shadow: 0 -1px 0 rgb(0 74 167 / 35%);
  text-align: right;
}

.intro-message {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.95rem 0.6rem 0.6rem;
  border-bottom-right-radius: 0.28rem;
}

.intro-message p { margin: 0; }
.intro-message strong { color: inherit; font-weight: 700; }

.portrait-wrap { position: relative; display: grid; place-items: center; }

.portrait {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: cover;
  border: 2px solid rgb(255 255 255 / 85%);
  border-radius: 50%;
}

.hello {
  position: absolute;
  right: -2.1rem;
  bottom: 2.15rem;
  z-index: 1;
  padding: 0.25rem 0.45rem;
  color: #2c465c;
  border: 1px solid #b6c1c9;
  border-radius: 0.4rem;
  background: #fff;
  box-shadow: 0 2px 5px rgb(0 0 0 / 15%);
  font-size: 0.63rem;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.25rem) scale(0.94);
  transition: opacity 140ms ease, transform 140ms ease;
}

.portrait-wrap:hover .hello,
.portrait-wrap:focus-within .hello { opacity: 1; transform: translateY(0) scale(1); }

.about {
  padding: 0.75rem 1rem;
  border-bottom-right-radius: 0.28rem;
}

.social-message {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.45rem 0.6rem 0.45rem 0.85rem;
  color: var(--ink);
  font-size: 0.8rem;
  border-bottom-right-radius: 0.28rem;
}

.social-message p { margin: 0; }
.socials { display: flex; gap: 0.15rem; }

.socials a {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  color: inherit;
  border-radius: 50%;
}

.socials a:hover,
.socials a:focus-visible {
  background: rgb(255 255 255 / 22%);
  color: inherit;
}

.socials a:focus-visible,
.folders a:focus-visible { outline: 2px solid #1e75c8; outline-offset: 3px; }



.folders {
  position: absolute;
  top: 0.5rem;
  right: 0.35rem;
  display: flex;
  gap: 0.85rem;
}

.folders a {
  display: grid;
  justify-items: center;
  gap: 0.25rem;
  min-width: 3.9rem;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  text-shadow: none;
  transition: color 150ms ease, transform 150ms ease;
}

.folder-icon {
  position: relative;
  display: block;
  width: 2.7rem;
  height: 1.8rem;
  border: 1px solid #4f85be;
  border-radius: 0.22rem;
  background: linear-gradient(to bottom, #91c4f4, #4b8dcc);
  box-shadow: 0 1px 1px rgb(0 0 0 / 20%), 0 1px 0 rgb(255 255 255 / 36%) inset;
}

.folder-icon::before {
  content: "";
  position: absolute;
  top: -0.38rem;
  left: 0.18rem;
  width: 1.25rem;
  height: 0.48rem;
  border: 1px solid #4f85be;
  border-bottom: 0;
  border-radius: 0.18rem 0.18rem 0 0;
  background: #78afe0;
}

.folders a:hover,
.folders a:focus-visible { color: var(--ink); transform: translateY(-2px); }
.folders a:hover .folder-icon,
.folders a:focus-visible .folder-icon { filter: brightness(1.12); }

.open-card {
  position: absolute;
  top: 4.35rem;
  right: 0.48rem;
  display: grid;
  justify-items: center;
  gap: 0.3rem;
  width: 3.9rem;
  padding: 0;
  color: var(--muted);
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.75rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.3rem);
  transition: opacity 150ms ease, transform 150ms ease;
}

.desktop.is-closed .open-card { opacity: 1; pointer-events: auto; transform: translateY(0); }
.open-card:hover, .open-card:focus-visible { color: var(--ink); }
.open-card:focus-visible { outline: 2px solid #1e75c8; outline-offset: 3px; }

.document-icon {
  position: relative;
  display: block;
  width: 2rem;
  height: 2.45rem;
  border: 1px solid #8e989e;
  border-radius: 0.12rem;
  background: linear-gradient(to bottom, #fff, #e7eaec);
  box-shadow: 0 1px 1px rgb(0 0 0 / 14%);
}

.document-icon::before {
  content: "";
  position: absolute;
  top: 0.42rem;
  right: 0.35rem;
  width: 0.78rem;
  height: 0.12rem;
  background: #9ba2a6;
  box-shadow: 0 0.37rem 0 #9ba2a6, 0 0.74rem 0 #9ba2a6;
}

.minimized-window {
  position: absolute;
  bottom: 0.6rem;
  display: none;
  padding: 0.35rem 1.4rem;
  color: #303234;
  border: 1px solid #7a8084;
  border-radius: 0.25rem;
  background: linear-gradient(to bottom, #f7f8f8, #c6cbcf);
  box-shadow: 0 1px 0 rgb(255 255 255 / 80%) inset, 0 2px 4px rgb(0 0 0 / 20%);
  font: 0.7rem var(--font);
}

.desktop.is-minimized .minimized-window { display: block; }

.card.is-dragging { user-select: none; }

@media (prefers-color-scheme: dark) {
  :root {
    --page-top: #34383d;
    --page-bottom: #1b1d20;
    --card: #292b2e;
    --line: #45484c;
    --bubble-top: #168aff;
    --bubble-bottom: #006ee6;
    --bubble-shadow: rgb(0 0 0 / 30%);
  }
  .card { border-color: #111214; box-shadow: 0 0.7rem 2rem rgb(0 0 0 / 48%), 0 1px 0 rgb(255 255 255 / 7%) inset; }
  .window-bar { border-bottom-color: #151719; background: linear-gradient(to bottom, #55595d, #35383b 47%, #272a2c 51%, #404346); }
  .hello { color: #e9edf0; border-color: #586069; background: #34383d; }
  .folder-icon { border-color: #336b9f; background: linear-gradient(to bottom, #5e9acb, #2e6da4); }
  .folder-icon::before { border-color: #336b9f; background: #518abb; }
  .document-icon { border-color: #686d72; background: linear-gradient(to bottom, #d8dcdf, #969ca1); }
  .document-icon::before { background: #73797d; box-shadow: 0 0.37rem 0 #73797d, 0 0.74rem 0 #73797d; }
  .minimized-window { color: #e7eaed; border-color: #151719; background: linear-gradient(to bottom, #575b5e, #34383b); }
}

@media (max-width: 30rem) {
  body { padding: 1rem; }
  .desktop { min-height: calc(100vh - 2rem); }
  .conversation { padding: 1.4rem; }
  .folders { top: 0; right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}