/* Feudera Studios — shared shell for Lab prototypes (bar, about section, footer).
   Unlayered on purpose: prototype styles live in @layer app and can never override the shell. */

:root {
  --fs-bar-h: 48px;
  --fs-ink: #0a0908;
  --fs-ink-2: #14110f;
  --fs-ink-3: #1d1916;
  --fs-bone: #f3ece2;
  --fs-bone-2: #cfc6b9;
  --fs-mute: #9a9184;
  --fs-line: rgba(243, 236, 226, 0.12);
  --fs-ember: #ff5a1f;
  --fs-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --fs-sans: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
}
@media (max-width: 760px) { :root { --fs-bar-h: 52px; } }

html { scroll-padding-top: var(--fs-bar-h); }
body.fs-proto { margin: 0; }

.fs-skip {
  position: fixed; left: 12px; top: -60px; z-index: 2147483647;
  padding: 10px 14px; border-radius: 10px;
  background: var(--fs-ember); color: #120a06; font: 600 14px/1 var(--fs-sans); text-decoration: none;
  transition: top .2s;
}
.fs-skip:focus { top: 10px; }

/* ---------------------------------------------------------------- bar */
.fs-bar {
  position: sticky; top: 0; z-index: 2147483000;
  box-sizing: border-box; height: var(--fs-bar-h); margin: 0;
  display: flex; align-items: center; gap: 10px;
  padding: 0 max(14px, env(safe-area-inset-right)) 0 max(14px, env(safe-area-inset-left));
  background: rgba(10, 9, 8, 0.9);
  -webkit-backdrop-filter: blur(16px) saturate(140%); backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--fs-line);
  color: var(--fs-bone);
  font: 500 12.5px/1 var(--fs-mono); letter-spacing: 0; text-transform: none;
  -webkit-font-smoothing: antialiased;
  transition: box-shadow .3s;
}
.fs-bar.is-scrolled { box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .55); }
.fs-bar *, .fs-bar *::before, .fs-bar *::after { box-sizing: border-box; }
.fs-bar a { color: inherit; text-decoration: none; }
.fs-bar svg { display: block; flex: none; }
.fs-bar :focus-visible { outline: 2px solid var(--fs-ember); outline-offset: 3px; border-radius: 6px; }

.fs-bar__brand { display: inline-flex; align-items: center; gap: 9px; flex: none; }
.fs-mark { width: 22px; height: 22px; }
.fs-mark__f { fill: var(--fs-bone); }
.fs-mark__cursor { fill: var(--fs-ember); animation: fs-blink 1.1s steps(1, end) infinite; }
@keyframes fs-blink { 50% { opacity: .15; } }
.fs-bar__brandname { font: 650 14px/1 var(--fs-sans); letter-spacing: -.01em; white-space: nowrap; }
.fs-bar__sep { color: rgba(243, 236, 226, .28); flex: none; }
.fs-bar__lab { color: var(--fs-bone-2); flex: none; padding: 6px 2px; transition: color .2s; }
.fs-bar__lab:hover { color: var(--fs-bone); }
.fs-bar__title {
  margin: 0; min-width: 0; display: flex; align-items: baseline; gap: 10px;
  font: inherit; color: inherit; letter-spacing: inherit;
  white-space: nowrap; overflow: hidden;
}
.fs-bar__name { font: 650 14px/1 var(--fs-sans); color: var(--fs-bone); letter-spacing: -.01em; }
.fs-bar__name::before {
  content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 2px;
  background: var(--fs-accent, var(--fs-ember)); vertical-align: 1px;
}
.fs-bar__cat { color: var(--fs-mute); overflow: hidden; text-overflow: ellipsis; }

.fs-bar__right { margin-left: auto; display: flex; align-items: center; gap: 8px; flex: none; }
.fs-bar__badge {
  display: inline-flex; align-items: center; gap: 7px; height: 28px; padding: 0 10px;
  border: 1px solid var(--fs-line); border-radius: 999px; color: var(--fs-bone-2); white-space: nowrap;
}
.fs-bar__badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--fs-ember); box-shadow: 0 0 0 3px rgba(255, 90, 31, .18); }

.fs-bar__pager { display: flex; align-items: center; gap: 2px; }
.fs-bar__pager a, .fs-bar__info, .fs-bar__lang {
  position: relative; display: grid; place-items: center; width: 30px; height: 30px;
  border-radius: 8px; color: var(--fs-bone-2); transition: background .2s, color .2s;
}
.fs-bar__pager a:hover, .fs-bar__info:hover, .fs-bar__lang:hover { background: rgba(243, 236, 226, .08); color: var(--fs-bone); }
.fs-bar__pager svg, .fs-bar__info svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.fs-bar__count { min-width: 44px; text-align: center; color: var(--fs-bone); }
.fs-bar__count span { color: var(--fs-mute); }
.fs-bar__lang { width: auto; padding: 0 8px; border: 1px solid var(--fs-line); font-weight: 600; letter-spacing: .04em; }
[data-fs-tip]::after {
  content: attr(data-fs-tip); position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translate(-50%, -4px); opacity: 0; pointer-events: none;
  padding: 6px 9px; border-radius: 7px; white-space: nowrap;
  background: var(--fs-bone); color: var(--fs-ink); font: 600 12px/1 var(--fs-sans);
  transition: opacity .18s, transform .18s;
}
[data-fs-tip]:hover::after, [data-fs-tip]:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }

.fs-bar__cta {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 13px; border-radius: 999px;
  background: var(--fs-ember); color: #160b05; font: 650 13px/1 var(--fs-sans); letter-spacing: -.005em; white-space: nowrap;
  transition: transform .25s cubic-bezier(.2, .8, .2, 1), box-shadow .25s;
}
.fs-bar__cta:hover { transform: translateY(-1px); box-shadow: 0 8px 22px -8px rgba(255, 90, 31, .7); }
.fs-bar__cta svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

@media (max-width: 1180px) { .fs-bar__badge { display: none; } }
@media (max-width: 980px) { .fs-bar__brandname, .fs-bar__brand + .fs-bar__sep, .fs-bar__lab, .fs-bar__lab + .fs-bar__sep { display: none; } }
@media (max-width: 760px) {
  .fs-bar { gap: 8px; }
  .fs-bar__cat, .fs-bar__count { display: none; }
  .fs-bar__cta { width: 34px; height: 34px; padding: 0; justify-content: center; }
  .fs-bar__cta span { display: none; }
  .fs-bar__right { gap: 4px; }
  [data-fs-tip]::after { display: none; }
}
@media (max-width: 400px) { .fs-bar__pager { display: none; } }

/* ---------------------------------------------------------------- app area */
.fs-main { display: block; margin: 0; }
/* z-index: fixed/sticky layers inside the app (toasts, drawers) must paint above the about section */
.fs-app { position: relative; z-index: 1; min-height: calc(100svh - var(--fs-bar-h)); isolation: isolate; }
.fs-noscript {
  margin: 0; padding: 40px 20px; text-align: center; background: var(--fs-ink); color: var(--fs-bone); font: 500 16px/1.5 var(--fs-sans);
}

/* ---------------------------------------------------------------- about */
.fs-about {
  position: relative; margin: 0; padding: clamp(56px, 8vw, 110px) 20px clamp(48px, 6vw, 80px);
  background:
    radial-gradient(900px 400px at 85% 0%, color-mix(in srgb, var(--fs-accent, #ff5a1f) 14%, transparent), transparent 70%),
    var(--fs-ink);
  color: var(--fs-bone); font: 400 16px/1.6 var(--fs-sans);
  border-top: 1px solid var(--fs-line);
  -webkit-font-smoothing: antialiased;
}
.fs-about *, .fs-about *::before, .fs-about *::after { box-sizing: border-box; }
.fs-about__inner { max-width: 1180px; margin: 0 auto; }
.fs-about__kicker { margin: 0 0 18px; font: 500 12.5px/1.2 var(--fs-mono); color: var(--fs-mute); text-transform: uppercase; letter-spacing: .08em; }
.fs-about__title {
  margin: 0 0 40px; max-width: 22ch; font: 600 clamp(30px, 4.4vw, 56px)/1.05 var(--fs-sans); letter-spacing: -.028em; color: var(--fs-bone);
  text-wrap: balance;
}
.fs-about__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 6vw, 90px); }
.fs-about__lead { margin: 0 0 18px; font-size: clamp(17px, 1.5vw, 20px); color: var(--fs-bone); text-wrap: pretty; }
.fs-about__note { margin: 0 0 28px; color: var(--fs-mute); font-size: 14.5px; }
.fs-about__cta {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 20px; border-radius: 999px;
  background: var(--fs-bone); color: var(--fs-ink); font-weight: 650; text-decoration: none;
  transition: transform .25s, background .25s;
}
.fs-about__cta:hover { transform: translateY(-2px); background: #fff; }
.fs-about__cta span { transition: transform .25s; }
.fs-about__cta:hover span { transform: translateX(4px); }
.fs-about h3 { margin: 0 0 14px; font: 500 12.5px/1.2 var(--fs-mono); color: var(--fs-mute); text-transform: uppercase; letter-spacing: .08em; }
.fs-about__list { margin: 0 0 30px; padding: 0; list-style: none; }
.fs-about__list li { position: relative; padding: 12px 0 12px 28px; border-bottom: 1px solid var(--fs-line); }
.fs-about__list li::before {
  content: ""; position: absolute; left: 2px; top: 50%; width: 12px; height: 2px; background: var(--fs-accent, var(--fs-ember));
}
.fs-about__chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.fs-about__chips li { padding: 7px 12px; border: 1px solid var(--fs-line); border-radius: 999px; font: 500 13px/1 var(--fs-mono); color: var(--fs-bone-2); }
.fs-about__more { margin-top: clamp(48px, 7vw, 90px); }
.fs-about__more ul { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.fs-about__more a {
  position: relative; display: grid; gap: 4px; padding: 16px 16px 16px 18px; border-radius: 14px; overflow: hidden;
  background: var(--fs-ink-2); border: 1px solid var(--fs-line); color: var(--fs-bone); text-decoration: none;
  transition: border-color .25s, transform .25s, background .25s;
}
.fs-about__more a::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--c); opacity: .9; }
.fs-about__more a:hover { border-color: rgba(243, 236, 226, .3); transform: translateY(-2px); background: var(--fs-ink-3); }
.fs-about__more a span { font: 500 12px/1 var(--fs-mono); color: var(--fs-mute); }
.fs-about__more a strong { font-weight: 650; font-size: 17px; letter-spacing: -.01em; }
.fs-about__more a em { font-style: normal; color: var(--fs-mute); font-size: 13.5px; }
.fs-about :focus-visible { outline: 2px solid var(--fs-ember); outline-offset: 3px; }
@media (max-width: 820px) { .fs-about__grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- footer */
.fs-foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  margin: 0; padding: 22px 20px calc(22px + env(safe-area-inset-bottom));
  background: var(--fs-ink); color: var(--fs-mute); border-top: 1px solid var(--fs-line);
  font: 500 12.5px/1.4 var(--fs-mono);
}
.fs-foot p { margin: 0; }
.fs-foot nav { display: flex; flex-wrap: wrap; gap: 18px; }
.fs-foot a { color: var(--fs-bone-2); text-decoration: none; }
.fs-foot a:hover { color: var(--fs-bone); }

@media (prefers-reduced-motion: reduce) {
  .fs-mark__cursor { animation: none; }
  .fs-bar__cta, .fs-about__cta, .fs-about__more a { transition: none; }
}

@view-transition { navigation: auto; }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }