/* ============================================================
   FLOTARIUM · FAQ directory
   Page-specific styles built on styles.css / v2.css.
   ============================================================ */

/* ---------- Page chrome ---------- */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.crumbs a { color: var(--text-mute); transition: color .3s; }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { opacity: .5; }
.crumbs .cur { color: var(--text-dim); }

/* ---------- Preloader ---------- */
html.is-loading,
html.is-loading body { overflow: hidden; }

#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: radial-gradient(120% 90% at 50% 38%, var(--surface) 0%, var(--bg) 60%, var(--bg) 100%);
  transition: opacity 1s cubic-bezier(.22,1,.36,1), visibility 1s;
}
#preloader[data-done] { opacity: 0; visibility: hidden; pointer-events: none; }
.pl-grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
.pl-core { position: relative; display: flex; flex-direction: column; align-items: center; gap: clamp(34px,5vw,52px); padding: 0 24px; text-align: center; }
.pl-ripple { position: relative; width: clamp(180px,26vw,260px); height: clamp(58px,8.4vw,84px); display: grid; place-items: center; }
.pl-ripple .ring { position: absolute; left: 50%; top: 50%; width: 100%; height: 100%; border: 1px solid var(--accent); border-radius: 50%; transform: translate(-50%,-50%) scale(.1); opacity: 0; animation: plRipple 3s cubic-bezier(.16,.7,.3,1) infinite; }
.pl-ripple .ring:nth-child(2) { animation-delay: 1s; }
.pl-ripple .ring:nth-child(3) { animation-delay: 2s; }
.pl-ripple .drop { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 16px 2px var(--accent-glow); animation: plDrop 3s cubic-bezier(.5,0,.4,1) infinite; }
.pl-mark { position: relative; z-index: 1; width: clamp(168px,24vw,224px); opacity: 0; transform: translateY(8px); animation: plFade 1.2s cubic-bezier(.22,1,.36,1) .25s forwards; }
.pl-mark img { display: block; width: 100%; height: auto; }
.pl-meta { display: flex; flex-direction: column; align-items: center; gap: 16px; opacity: 0; transform: translateY(8px); animation: plFade 1.2s cubic-bezier(.22,1,.36,1) .55s forwards; }
.pl-word { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .42em; text-transform: uppercase; color: var(--text-mute); padding-left: .42em; }
.pl-bar { width: clamp(160px,22vw,220px); height: 1px; background: var(--line); position: relative; overflow: hidden; }
.pl-bar::after { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--pl-progress,0%); background: linear-gradient(90deg,var(--accent),var(--coral)); box-shadow: 0 0 12px var(--accent-glow); transition: width .5s cubic-bezier(.22,1,.36,1); }

@keyframes plRipple {
  0% { transform: translate(-50%,-50%) scale(.12); opacity: 0; }
  14% { opacity: .85; }
  100% { transform: translate(-50%,-50%) scale(1.55); opacity: 0; }
}
@keyframes plDrop {
  0%,100% { transform: translateY(-150%) scale(.6); opacity: 0; }
  6% { opacity: 1; }
  14% { transform: translateY(0) scale(1); opacity: 1; }
  24% { transform: translateY(0) scale(.2); opacity: 0; }
}
@keyframes plFade { to { opacity: 1; transform: translateY(0); } }

/* ---------- Hero ---------- */
.faq-hero {
  position: relative;
  overflow: hidden;
  min-height: 0;
  display: block;
  padding-block: clamp(112px,13vh,148px) clamp(34px,4vw,56px);
}
.faq-hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.faq-hero-bg .halo { position: absolute; border-radius: 50%; filter: blur(84px); opacity: .82; }
.faq-hero-bg .halo.h1 { width: 58vw; height: 58vw; left: -17vw; top: -26vw; background: radial-gradient(circle,var(--halo-1),transparent 65%); animation: drift 25s var(--ease) infinite alternate; }
.faq-hero-bg .halo.h2 { width: 45vw; height: 45vw; right: -14vw; bottom: -23vw; background: radial-gradient(circle,var(--halo-2),transparent 62%); animation: drift 32s var(--ease) infinite alternate-reverse; }
.faq-hero-bg .vignette { position: absolute; inset: 0; background: radial-gradient(110% 100% at 50% -4%,transparent 44%,var(--bg) 100%); }
.faq-hero .orbit-motif { right: clamp(-180px,-7vw,-50px); top: 48%; opacity: .42; }
.faq-hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0,1fr); align-items: start; }
.faq-hero-copy { display: grid; gap: clamp(14px,1.8vw,20px); }
.faq-hero h1 { max-width: none; margin: 0; font-size: clamp(2.1rem,10vw,6rem); line-height: 1; letter-spacing: -.025em; white-space: nowrap; }
.faq-hero-lede { max-width: 51ch; color: var(--text-dim); font-size: clamp(1rem,.92rem + .5vw,1.3rem); line-height: 1.58; text-wrap: pretty; }

/* ---------- Search and category filter ---------- */
.faq-browser { background: var(--bg); padding-block: clamp(30px,4vw,52px); border-top: 1px solid var(--line); }
.faq-tools {
  display: grid;
  gap: 18px;
  padding: clamp(18px,2vw,26px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  background: color-mix(in srgb,var(--bg-2) 88%,transparent);
  backdrop-filter: blur(20px) saturate(1.15);
  box-shadow: 0 24px 70px -44px rgba(0,0,0,.9);
}
.faq-search-row { display: block; }
.faq-search { position: relative; }
.faq-search svg { position: absolute; left: 17px; top: 50%; transform: translateY(-50%); color: var(--text-mute); pointer-events: none; }
.faq-search input {
  width: 100%;
  min-height: 52px;
  padding: 13px 54px 13px 50px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: rgba(255,255,255,.025);
  color: var(--text);
  font-size: var(--step--1);
  transition: border-color .3s,background .3s,box-shadow .3s;
}
.faq-search input::placeholder { color: var(--text-mute); }
.faq-search input::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }
.faq-search input:focus { outline: none; border-color: var(--accent); background: var(--surface); box-shadow: 0 0 0 4px var(--accent-soft); }
.faq-search-clear { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: var(--text-mute); transition: color .3s,background .3s; }
.faq-search-clear:hover { color: var(--accent); background: var(--accent-soft); }
.faq-search-clear[hidden] { display: none; }

.faq-filter-scroll { min-width: 0; overflow: visible; }
.faq-filter-scroll::-webkit-scrollbar { display: none; }
.faq-filters { display: flex; flex-wrap: wrap; gap: 8px; width: 100%; }
.faq-filter {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: rgba(255,255,255,.015);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color .3s,border-color .3s,background .3s,transform .3s var(--ease-out);
}
.faq-filter:hover { color: var(--text); border-color: var(--line-strong); transform: translateY(-1px); }
.faq-filter[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.faq-filter-count { min-width: 22px; height: 22px; padding-inline: 5px; border-radius: 100px; display: inline-grid; place-items: center; background: rgba(255,255,255,.05); color: var(--text-mute); font-size: .58rem; }
.faq-filter[aria-pressed="true"] .faq-filter-count { background: var(--accent-deep); color: #fff; }

/* ---------- FAQ groups ---------- */
.faq-directory { background: transparent; }
.faq-group { display: grid; grid-template-columns: minmax(230px,.43fr) minmax(0,1fr); gap: clamp(36px,6vw,84px); padding-block: clamp(54px,7vw,92px); border-bottom: 1px solid var(--line); scroll-margin-top: calc(var(--faq-header-h,60px) + 24px); }
.faq-group[hidden],
.faq-item[hidden] { display: none !important; }
.faq-group-head { align-self: start; }
.faq-group-index { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; font-family: var(--font-mono); font-size: .66rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
.faq-group-index::after { content: ""; width: 34px; height: 1px; background: var(--accent); opacity: .6; }
.faq-group h2 { font-size: clamp(2.1rem,1.45rem + 2.4vw,3.8rem); line-height: .98; }
.faq-group-desc { max-width: 33ch; margin-top: 15px; color: var(--text-dim); font-size: var(--step--1); line-height: 1.6; }
.faq-group-link { display: flex; width: fit-content; margin-top: 20px; }
.faq-group-total { display: inline-flex; align-items: center; gap: 7px; margin-top: 16px; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-mute); }
.faq-group-total::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }

.faq-group .faq-list { min-width: 0; }
.faq-group .faq-item:first-child { border-top-color: var(--line-strong); }
.faq-group .faq-q { gap: clamp(13px,2vw,20px); }
.faq-group .faq-q .qx { min-width: 24px; letter-spacing: .08em; }
.faq-group .faq-a p { max-width: 62ch; }
.faq-group [data-faq-item] { scroll-margin-top: calc(var(--faq-header-h,60px) + 24px); }
.faq-group .faq-a a { color: var(--accent-2); text-decoration: underline; text-decoration-color: color-mix(in srgb,var(--accent) 48%,transparent); text-underline-offset: 3px; transition: color .3s,text-decoration-color .3s; }
.faq-group .faq-a a:hover { color: var(--text); text-decoration-color: var(--accent); }
.faq-item.open .faq-q .qt { color: var(--accent-2); }
.faq-item.search-hit .faq-q .qt { color: var(--accent-2); }

.faq-empty { margin-block: clamp(58px,8vw,104px); padding: clamp(34px,5vw,64px); border: 1px solid var(--line); border-radius: var(--r-xl); background: linear-gradient(145deg,var(--surface-2),var(--surface)); text-align: center; }
.faq-empty h2 { font-size: var(--step-3); }
.faq-empty p { max-width: 52ch; margin: 14px auto 24px; color: var(--text-dim); }
.faq-empty[hidden] { display: none; }

/* ---------- Final CTA orbit ---------- */
.final-cta .cta-orbit { position: absolute; inset: 0; z-index: 1; display: grid; place-items: center; pointer-events: none; opacity: .4; }
.final-cta .cta-orbit .sh-orbit-drift { width: min(82vmin,760px); aspect-ratio: 1; position: relative; }
.cta-orbit .sh-loop { position: absolute; inset: 0; display: grid; place-items: center; transform-origin: 50% 50%; will-change: transform; }
.cta-orbit .sh-loop svg { width: 100%; height: 100%; overflow: visible; }
.cta-orbit .sh-loop path { fill: none; stroke-linejoin: round; stroke-linecap: round; }
.cta-orbit .l-a path,
.cta-orbit .l-b path { stroke: color-mix(in oklch,var(--accent-2) 86%,white); stroke-width: 1.1; opacity: .42; }
.cta-orbit .l-c,
.cta-orbit .l-d { transform: scale(1.34); }
.cta-orbit .l-c path,
.cta-orbit .l-d path { stroke: var(--accent); stroke-width: .85; opacity: .18; }
.cta-orbit .l-a { animation: faqCtaSpin 58s linear infinite; }
.cta-orbit .l-b { animation: faqCtaSpin 72s linear infinite reverse; }
.cta-orbit .l-c { animation: faqCtaSpinBig 96s linear infinite reverse; }
.cta-orbit .l-d { animation: faqCtaSpinBig 116s linear infinite; }
@keyframes faqCtaSpin { to { transform: rotate(360deg); } }
@keyframes faqCtaSpinBig { to { transform: scale(1.34) rotate(360deg); } }

@media (max-width: 900px) {
  .faq-hero-grid { grid-template-columns: 1fr; }
  .faq-group { grid-template-columns: 1fr; gap: 26px; }
  .faq-group-desc { max-width: 55ch; }
}

@media (max-width: 680px) {
  .faq-hero .orbit-motif { width: 90vw; right: -44vw; top: 34%; opacity: .26; }
  .faq-tools { margin-inline: calc(var(--gut) * -.35); border-radius: var(--r-md); padding: 15px; }
  .faq-group .faq-q { padding-block: 22px; }
  .faq-group .faq-q .qx { min-width: 22px; }
  .faq-group .faq-q .qt { font-size: clamp(1.1rem,5vw,1.32rem); }
  .faq-group .faq-q .qi { width: 32px; height: 32px; }
}

@media (max-width: 720px) {
  .faq-filter-scroll { overflow-x: auto; scrollbar-width: none; overscroll-behavior-inline: contain; }
  .faq-filters { flex-wrap: nowrap; width: max-content; min-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .pl-ripple .ring,
  .pl-ripple .drop,
  .faq-hero-bg .halo,
  .faq-hero .orbit-motif .ring,
  .cta-orbit .sh-loop { animation: none; }
  .pl-ripple .ring:first-child { opacity: .5; transform: translate(-50%,-50%) scale(1); }
  .pl-mark,
  .pl-meta { animation: none; opacity: 1; transform: none; }
  #preloader,
  .faq-a,
  .faq-filter,
  .faq-search input,
  .faq-search-clear,
  .faq-q .qi,
  .faq-q .qi::before,
  .faq-q .qi::after { transition: none !important; }
}

[data-motion="off"] .faq-hero-bg .halo,
[data-motion="off"] .cta-orbit .sh-loop { animation: none; }

@media print {
  #preloader,
  .site-header,
  .mobile-menu,
  .faq-hero-bg,
  .faq-tools,
  .final-cta,
  .site-footer,
  .modal-overlay { display: none !important; }
  body { background: #fff; color: #111; }
  .faq-browser,
  .faq-directory { background: #fff !important; }
  .faq-hero { min-height: 0; padding: 28px 0; }
  .faq-hero-grid,
  .faq-group { grid-template-columns: 1fr; }
  .faq-hero h1,
  .faq-group h2,
  .faq-q .qt { color: #111; }
  .faq-hero-lede,
  .faq-group-desc,
  .faq-a p { color: #333 !important; }
  .faq-group { display: grid !important; padding-block: 24px; break-inside: avoid; }
  .faq-item { display: block !important; break-inside: avoid; }
  .faq-group[hidden] { display: grid !important; }
  .faq-item[hidden] { display: block !important; }
  .faq-a { grid-template-rows: 1fr !important; }
  .faq-q .qi { display: none; }
}