:root,
[data-theme="dark"]{
  --bg:#1a1a1e;
  --panel:#22222a;
  --panel2:#2a2a33;
  --text:#f6f4ef;
  --muted:#a0a0a8;
  --line:rgba(255,255,255,.14);
  --line-strong:rgba(255,255,255,.35);
  --pill-bg:rgba(26,26,30,.72);
  --pill-shadow:none;
  --accent:#ffffff;
  --accent-contrast:#000000;
  --card-bg:rgba(255,255,255,.05);
  --search-input-bg:#f6f4ef;
  --search-input-fg:#111;
  --save-bg:rgba(246,244,239,.92);
  --save-fg:#111;
  --overlay-bg:rgba(0,0,0,.55);
  --footer-bg:#2a2a33;
  --orange:#F86A00;
  --orange-fg:#ffffff;
}
[data-theme="light"]{
  --bg:#e5e5e7;
  --panel:#f3f3f5;
  --panel2:#dcdce0;
  --text:#1a1a1e;
  --muted:#5c5c66;
  --line:rgba(0,0,0,.16);
  --line-strong:rgba(0,0,0,.55);
  --pill-bg:rgba(245,245,247,.78);
  --pill-shadow:none;
  --accent:#000000;
  --accent-contrast:#ffffff;
  --card-bg:rgba(0,0,0,.04);
  --search-input-bg:#ffffff;
  --search-input-fg:#111;
  --save-bg:rgba(255,255,255,.95);
  --save-fg:#111;
  --overlay-bg:rgba(0,0,0,.35);
  --footer-bg:#f2f2f4;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  transition:background-color .25s ease,color .25s ease;
}
a{color:inherit;text-decoration:none}

/* ------- Top pill nav ------- */
.nav{
  position:sticky;
  top:14px;
  z-index:10;
  margin:14px auto 0;
  max-width:1180px;
  padding:0 18px;
}
.navin{
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:var(--pill-bg);
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 14px 10px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  box-shadow:var(--pill-shadow);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:-.03em}
.dot{width:12px;height:12px;border-radius:999px;background:var(--accent)}
.navlinks{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.navlinks a,.pill{
  border:1px solid var(--line);
  padding:8px 13px;
  border-radius:999px;
  background:transparent;
  font-size:14px;
  color:var(--text);
  transition:color .3s ease,border-color .3s ease;
}

/* ------- Nav chrome (right cluster: currency chip, theme, user) ------- */
.nav-chrome{display:flex;align-items:center;gap:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  font-size:14px;font-weight:700;cursor:pointer;font-family:inherit;
  transition:color .3s ease,border-color .3s ease;
}
.chip .flag{font-size:18px;line-height:1}
.chip .caret{opacity:.55;font-size:10px}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  display:grid;place-items:center;cursor:pointer;
  transition:color .3s ease,border-color .3s ease;
}
.icon-btn svg{width:18px;height:18px;display:block}

/* Theme icon: sun in dark mode, moon in light mode */
[data-theme="dark"] .theme-toggle .icon-moon{display:none}
[data-theme="dark"] .theme-toggle .icon-sun{display:block}
[data-theme="light"] .theme-toggle .icon-sun{display:none}
[data-theme="light"] .theme-toggle .icon-moon{display:block}

/* ------- Hero ------- */
.hero{max-width:760px;margin:0 auto;padding:54px 18px 30px;text-align:center}
.avatar{width:118px;height:118px;border-radius:30px;object-fit:cover;border:1px solid var(--line)}
h1{font-size:clamp(44px,9vw,96px);line-height:.88;margin:18px 0 8px;letter-spacing:-.08em}
.subtitle{color:var(--muted);font-size:18px;line-height:1.5;margin:auto;max-width:620px}

/* ------- Social icons ------- */
.socials{display:flex;justify-content:center;gap:12px;margin:22px 0}
.socials a{
  width:46px;height:46px;
  border-radius:16px;
  display:grid;place-items:center;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text);
  transition:transform .18s ease,border-color .3s ease,color .3s ease;
}
.socials svg{width:22px;height:22px;display:block}

/* ------- Video ------- */
.video{margin:22px auto;border-radius:28px;overflow:hidden;border:1px solid var(--line);background:#000}
.video iframe{width:100%;aspect-ratio:16/9;border:0;display:block}

/* ------- Link cards ------- */
.links{display:grid;gap:14px;max-width:760px;margin:0 auto 20px;padding:0 18px}
.linkcard{
  display:grid;
  grid-template-columns:62px 1fr auto;
  align-items:center;
  gap:16px;
  padding:18px;
  border:1px solid var(--line);
  border-radius:26px;
  background:var(--card-bg);
  position:relative;
  overflow:hidden;
  isolation:isolate;
  transition:transform .18s ease,border-color .3s ease,color .3s ease;
}
.icon{width:62px;height:62px;border-radius:20px;background:var(--panel2);display:grid;place-items:center;overflow:hidden;font-weight:900;color:var(--text)}
.icon img{width:100%;height:100%;object-fit:cover}
.linkcard h2{font-size:18px;margin:0 0 5px}
.linkcard p{margin:0;color:var(--muted);font-size:14px;line-height:1.35}
.arrow{color:var(--text);font-size:22px}

/* ------- Spreadsheet page ------- */
.page{max-width:1240px;margin:auto;padding:42px 18px 70px}
.eyebrow{color:var(--text);font-weight:800;font-size:12px;letter-spacing:.18em;text-transform:uppercase;opacity:.7}
.topline{display:flex;align-items:end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:24px}
.topline h1{font-size:clamp(42px,7vw,82px);max-width:760px}
.searchbar{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
.searchbar input,.searchbar select{background:var(--search-input-bg);color:var(--search-input-fg);border:1px solid var(--line);border-radius:16px;padding:15px 16px;min-width:240px;font:inherit}
.searchbar button,.cta{background:var(--accent);color:var(--accent-contrast);border:0;border-radius:16px;padding:15px 18px;font-weight:850;cursor:pointer}
.cats{display:flex;gap:10px;overflow:auto;padding-bottom:10px;margin:10px 0 26px}
.cat{white-space:nowrap;cursor:pointer}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{border:1px solid var(--line);border-radius:26px;overflow:hidden;background:var(--card-bg);position:relative}
.thumb{aspect-ratio:1/1;background:#f3f3f3;display:block;width:100%;object-fit:cover}
.save{position:absolute;top:12px;right:12px;border:1px solid rgba(0,0,0,.08);background:var(--save-bg);color:var(--save-fg);border-radius:999px;padding:8px 10px;cursor:pointer}
.meta{padding:14px}
.tag{font-size:12px;color:var(--muted);margin-bottom:8px}
.name{font-weight:850;line-height:1.15;margin-bottom:10px;min-height:38px}
.price{display:flex;align-items:center;gap:8px;font-weight:900}
.cny{color:var(--muted);font-weight:600}
.seller{margin-top:10px;color:var(--muted);font-size:13px}
.empty{display:none;border:1px dashed var(--line);border-radius:24px;padding:30px;color:var(--muted);text-align:center}

/* ------- Personalize popover ------- */
.personalize{
  position:fixed;top:76px;right:20px;z-index:90;
  width:340px;max-width:calc(100vw - 24px);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:22px;
  padding:16px 18px 18px;
  display:none;
}
.personalize.open{display:block}
.personalize .head{text-align:center;font-weight:700;margin-bottom:10px;font-size:14px;text-decoration:underline;text-underline-offset:4px}
.personalize .section{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.personalize .section:first-of-type{border-top:0;padding-top:6px;margin-top:4px}
.personalize .label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:10px}
.personalize .label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:800;display:inline-flex;align-items:center;gap:6px}
.personalize .hint{font-size:11px;color:var(--muted);text-align:right}
.currency-row{display:flex;justify-content:space-between;gap:4px}
.currency-cell{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:8px 4px;border-radius:14px;border:1px solid transparent;cursor:pointer;
  background:transparent;color:var(--text);font-family:inherit;
  transition:.15s;
}
.currency-cell .circle{
  width:38px;height:38px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);
  font-size:20px;line-height:1;overflow:hidden;
}
.currency-cell .code{font-size:11px;font-weight:800;letter-spacing:.02em}
.currency-cell.active{border-color:var(--line-strong);background:var(--card-bg)}
.currency-cell.active .circle{border-color:var(--line-strong)}

.language-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.language-cell{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:14px;border:1px solid var(--line);
  background:transparent;color:var(--text);cursor:pointer;text-align:left;
  font:inherit;font-size:14px;
  transition:.15s;
}
.language-cell .flag{font-size:16px;line-height:1}
.language-cell .name{flex:1}
.language-cell .check{opacity:0;font-size:14px;font-weight:900}
.language-cell.active{background:var(--card-bg);border-color:var(--line-strong)}
.language-cell.active .check{opacity:1}

.segmented{display:flex;background:var(--card-bg);border:1px solid var(--line);border-radius:12px;padding:3px;gap:2px}
.segmented button{
  flex:1;border:0;background:transparent;color:var(--text);font-family:inherit;
  padding:8px 6px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
}
.segmented button.active{background:var(--accent);color:var(--accent-contrast)}
.segmented svg{width:14px;height:14px}

/* ------- Overlay + Login modal ------- */
.overlay{
  position:fixed;inset:0;z-index:80;
  background:var(--overlay-bg);
  display:none;
  align-items:flex-start;justify-content:center;
  padding:80px 16px 24px;
  overflow-y:auto;
}
.overlay.open{display:flex}
.modal{
  position:relative;
  background:var(--bg);
  color:var(--text);
  border:1px solid var(--line);
  border-radius:24px;
  padding:26px 24px;
  width:100%;max-width:420px;
}
.modal .close{
  position:absolute;top:14px;right:14px;
  width:32px;height:32px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  cursor:pointer;display:grid;place-items:center;font-size:14px;font-family:inherit;
}
.modal h2{margin:0 0 6px;font-size:26px;letter-spacing:-.03em}
.modal .sub{color:var(--muted);font-size:14px;margin:0 0 18px}
.tabs{display:flex;background:var(--card-bg);border:1px solid var(--line);border-radius:12px;padding:3px;margin-bottom:18px;gap:2px}
.tabs button{
  flex:1;border:0;background:transparent;color:var(--text);font-family:inherit;
  padding:9px 10px;border-radius:9px;cursor:pointer;font-weight:700;font-size:14px;
}
.tabs button.active{background:var(--accent);color:var(--accent-contrast)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.field label{font-size:11px;color:var(--muted);font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.field input{
  background:var(--search-input-bg);color:var(--search-input-fg);
  border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;
}
.forgot{background:none;border:0;color:var(--muted);font-size:12px;cursor:pointer;text-decoration:underline;padding:0;margin:-4px 0 8px;text-align:right;align-self:flex-end;display:block;margin-left:auto;font-family:inherit}
.btn-primary{
  width:100%;border:0;background:var(--accent);color:var(--accent-contrast);
  border-radius:12px;padding:13px;font-weight:800;font-size:15px;cursor:pointer;
  margin-top:4px;font-family:inherit;
}
.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:16px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.oauth-row{display:grid;gap:8px}
.oauth-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  border:1px solid var(--line);background:transparent;color:var(--text);font-family:inherit;
  border-radius:12px;padding:11px;font-weight:600;cursor:pointer;font-size:14px;
}
.oauth-btn svg{width:18px;height:18px}
.modal .foot{font-size:12px;color:var(--muted);text-align:center;margin-top:14px}

/* ------- Toast ------- */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(10px);
  background:var(--accent);color:var(--accent-contrast);
  padding:10px 16px;border-radius:999px;font-size:13px;font-weight:600;
  z-index:100;opacity:0;transition:opacity .2s ease,transform .2s ease;
  pointer-events:none;max-width:calc(100vw - 24px);text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ------- LITBUY oversized title + footer cutout ------- */
.litbuy-marquee{
  max-width:1240px;
  margin:80px auto -30px;
  padding:0 12px;
  position:relative;
  z-index:1;
  overflow:hidden;
  pointer-events:none;
  text-align:center;
}
.litbuy-word{
  display:block;
  font-family:"Fredoka","Segoe UI Black",Impact,system-ui,sans-serif;
  font-weight:700;
  font-size:clamp(70px,18vw,240px);
  letter-spacing:-.03em;
  line-height:.85;
  color:var(--text);
  opacity:.12;
  white-space:nowrap;
  user-select:none;
}
.site-footer{
  background:var(--footer-bg);
  border-radius:44px 44px 0 0;
  padding:70px 0 40px;
  position:relative;
  z-index:2;
}
.footer-inner{
  max-width:960px;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  flex-direction:column;
  gap:28px;
}
.disclaimer{
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
  text-align:center;
  max-width:720px;
  margin:0 auto;
}
.footer-links{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
  gap:10px;
}
.footer-link{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:16px;
  border:1px solid var(--line);background:var(--card-bg);
  color:var(--text);font-weight:600;font-size:14px;
  transition:color .3s ease,border-color .3s ease;
}
.footer-link svg{width:18px;height:18px;flex-shrink:0;display:block}
.footer-link .label{flex:1}
.footer-link .arr{opacity:.5;font-weight:800}

.faq{margin-top:8px}
.faq h3{
  font-size:18px;margin:0 0 14px;font-weight:800;text-align:center;letter-spacing:.02em;
}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-of-type{border-bottom:1px solid var(--line)}
.faq-item summary{
  cursor:pointer;
  padding:14px 4px;
  font-weight:700;
  font-size:14px;
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  list-style:none;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--muted);
  transition:transform .18s ease;
  display:inline-block;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .a{color:var(--muted);font-size:13px;line-height:1.55;margin:0 0 14px;padding:0 4px}

.footer-bottom{
  border-top:1px solid var(--line);
  margin-top:6px;padding-top:16px;
  text-align:center;color:var(--muted);font-size:12px;
}

/* ------- LitBuy featured card: solid orange snake border (JS-driven angle) ------- */
.linkcard.featured{
  border-color:transparent;
  --snake-angle:0deg;
}
.linkcard.featured::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  padding:2px;
  background:conic-gradient(from var(--snake-angle,0deg),
    transparent 0deg,
    var(--orange) 40deg,
    var(--orange) 110deg,
    transparent 160deg,
    transparent 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
          mask-composite:exclude;
  pointer-events:none;
  z-index:2;
}

/* ------- Device preview mode (simulated viewport) ------- */
html[data-device="mobile"] .nav,
html[data-device="mobile"] main{max-width:420px}
html[data-device="tablet"] .nav,
html[data-device="tablet"] main{max-width:820px}

/* ------- Responsive ------- */
@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topline{align-items:start}
  .linkcard{grid-template-columns:52px 1fr auto}
  .icon{width:52px;height:52px}
  .navlinks{justify-content:flex-end}
}
@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  .navin{flex-wrap:wrap;border-radius:22px;padding:10px 14px;gap:8px}
  .navlinks{order:3;flex-basis:100%;justify-content:flex-start}
  .navlinks a{font-size:12px;padding:7px 10px}
  .nav-chrome{margin-left:auto}
  .chip .code-desktop{display:none}
  .chip{padding:8px 10px}
  .hero{padding-top:34px}
  .searchbar input,.searchbar select{min-width:100%;width:100%}
  .personalize{top:auto;bottom:0;right:0;left:0;width:100%;max-width:none;border-radius:22px 22px 0 0;padding-bottom:24px}
  .overlay{padding-top:40px}
  .site-footer{border-radius:32px 32px 0 0;padding:60px 0 32px;margin-top:40px}
  .litbuy-marquee{margin:60px auto -20px}
}