/* AppVault — Apple-style design system (getdesign.md "apple": SF Pro, light, premium whitespace) */
:root{
  --bg:#f5f5f7; --surface:#ffffff; --surface-2:#fbfbfd;
  --ink:#1d1d1f; --ink-2:#6e6e73; --ink-3:#86868b;
  --line:#e8e8ed; --line-2:#d2d2d7;
  --accent:#0071e3; --accent-ink:#0060df;
  --radius:18px; --radius-lg:24px; --radius-sm:12px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 28px rgba(0,0,0,.06);
  --shadow-lg:0 2px 6px rgba(0,0,0,.05),0 20px 60px rgba(0,0,0,.10);
  --wrap:1180px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#000000;--surface:#1c1c1e;--surface-2:#161618;--ink:#f5f5f7;--ink-2:#a1a1a6;--ink-3:#8a8a8e;
    --line:#2c2c2e;--line-2:#3a3a3c;--accent:#0a84ff;--accent-ink:#409cff;
    --shadow:0 1px 2px rgba(0,0,0,.5),0 8px 28px rgba(0,0,0,.5);--shadow-lg:0 20px 60px rgba(0,0,0,.6);}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{letter-spacing:-.022em;line-height:1.08;margin:0}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 72%,transparent);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:20px;height:56px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.brand-mark{color:var(--accent);font-size:20px}
.nav-cats{display:flex;gap:2px;overflow-x:auto;flex:1;scrollbar-width:none}
.nav-cats::-webkit-scrollbar{display:none}
.nav-cats a{color:var(--ink-2);font-size:13.5px;padding:7px 11px;border-radius:999px;white-space:nowrap;transition:.15s}
.nav-cats a:hover{color:var(--ink);background:var(--surface)}
.nav-search{position:relative;flex:0 0 240px}
.nav-search input{width:100%;height:36px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);
  border-radius:999px;padding:0 15px;font-size:14px;font-family:inherit;outline:none;transition:.2s}
.nav-search input:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
.q-results{position:absolute;top:44px;right:0;width:340px;max-width:80vw;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden;max-height:60vh;overflow-y:auto}
.q-results a{display:flex;gap:10px;align-items:center;padding:9px 14px;border-bottom:1px solid var(--line)}
.q-results a:hover{background:var(--surface-2)}
.q-results .qr-n{font-weight:600;font-size:14px}
.q-results .qr-d{font-size:12px;color:var(--ink-3)}
.q-empty{padding:16px;color:var(--ink-3);font-size:13px;text-align:center}

/* ---------- hero ---------- */
.hero{padding:64px 0 34px;text-align:center;background:
  radial-gradient(60% 120% at 50% -10%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%)}
.hero h1{font-size:clamp(38px,6vw,68px);font-weight:700}
.grad{background:linear-gradient(120deg,#0a84ff,#bf5af2 55%,#ff375f);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--ink-2);font-size:clamp(16px,2.2vw,21px);max-width:640px;margin:16px auto 0}
.hero-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:7px;background:var(--surface);border:1px solid var(--line);
  padding:9px 16px;border-radius:999px;font-size:14px;font-weight:500;box-shadow:var(--shadow);transition:.18s}
.chip:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.chip span{font-size:16px}

/* ---------- strips ---------- */
main{padding:8px 0 40px}
.strip{margin:44px 0}
.strip-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px}
.strip-head h2{font-size:clamp(22px,3vw,30px);font-weight:700}
.see{color:var(--accent);font-size:15px;font-weight:500}
.see:hover{text-decoration:underline}

/* feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.feature{display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--radius-lg);color:#fff;
  background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:var(--shadow);transition:.2s;position:relative;overflow:hidden}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.feature .app-icon{border-radius:16px;box-shadow:0 6px 18px rgba(0,0,0,.28)}
.feature-txt{flex:1;min-width:0}
.feature-name{font-weight:700;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.feature-dev{font-size:13px;opacity:.82;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.feature-get{background:rgba(255,255,255,.22);backdrop-filter:blur(6px);padding:7px 16px;border-radius:999px;
  font-weight:600;font-size:14px;white-space:nowrap}

/* card grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.card{display:flex;gap:13px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--line-2)}
.app-icon{border-radius:22.37%;flex:none;background:var(--surface-2)}
.card-body{min-width:0;flex:1}
.card-name{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-dev{font-size:12.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.card-meta{display:flex;align-items:center;gap:8px;margin-top:7px}
.dl{font-size:12px;color:var(--ink-2);font-weight:500}

/* stars */
.stars{--r:5;display:inline-block;width:74px;height:13px;
  background:linear-gradient(90deg,#ff9f0a calc(var(--r)/5*100%),var(--line-2) 0);
  -webkit-mask:repeating-linear-gradient(90deg,#000 0 12px,transparent 12px 14.8px);
  mask:repeating-linear-gradient(90deg,#000 0 12px,transparent 12px 14.8px);
  -webkit-mask-size:74px 13px}

/* ---------- crumbs ---------- */
.crumbs{font-size:13px;color:var(--ink-3);padding:22px 0 8px}
.crumbs a{color:var(--ink-2)}.crumbs a:hover{color:var(--accent)}

/* ---------- app page ---------- */
.app-hero{display:flex;gap:24px;align-items:flex-start;padding:14px 0 8px}
.app-hero .app-icon{border-radius:24%;box-shadow:var(--shadow-lg)}
.app-hd{flex:1;min-width:0}
.app-hd h1{font-size:clamp(28px,4.5vw,42px);font-weight:700}
.app-dev{color:var(--accent);font-weight:500;margin-top:6px;font-size:15px}
.app-cat{color:var(--ink-3)}
.app-stats{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}
.stat{display:flex;flex-direction:column;gap:3px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:10px 16px;min-width:96px;box-shadow:var(--shadow)}
.stat b{font-size:17px;font-weight:700;display:flex;align-items:center;gap:6px}
.stat small{color:var(--ink-3);font-size:11.5px;text-transform:uppercase;letter-spacing:.04em}
.app-cta{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.btn-dl{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;border:0;
  font-family:inherit;font-weight:600;font-size:17px;padding:14px 26px;border-radius:999px;cursor:pointer;
  box-shadow:0 8px 24px color-mix(in srgb,var(--accent) 40%,transparent);transition:.18s;letter-spacing:-.01em}
.btn-dl:hover{transform:translateY(-2px);filter:brightness(1.05)}
.btn-dl:active{transform:translateY(0) scale(.98)}
.btn-dl.big{font-size:19px;padding:17px 40px}
.btn-dl-ic{font-size:20px;line-height:1}
.btn-dl-sz{font-weight:500;font-size:13px;opacity:.85;padding-left:8px;border-left:1px solid rgba(255,255,255,.35)}
.btn-dl.pulse{animation:pulse .5s}
@keyframes pulse{50%{transform:scale(1.05)}}
.dl-note{font-size:13px;color:var(--ink-3)}
.dl-count-bump{animation:bump .4s}
@keyframes bump{40%{transform:scale(1.25);color:var(--accent)}}

/* screenshots */
.shots{display:flex;gap:14px;overflow-x:auto;padding:26px 0 10px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.shot{flex:none;width:200px;height:400px;border-radius:20px;scroll-snap-align:start;object-fit:cover;
  border:1px solid var(--line);box-shadow:var(--shadow)}
.shot-ph{display:flex;flex-direction:column;padding:16px 14px;color:#fff;
  background:linear-gradient(160deg,var(--c1),var(--c2));position:relative;overflow:hidden}
.shot-ph .ph-bar{display:flex;gap:5px;align-items:center;opacity:.85;margin-bottom:22px}
.shot-ph .ph-bar i{height:5px;border-radius:3px;background:rgba(255,255,255,.55)}
.shot-ph .ph-bar i:nth-child(1){width:22px}.shot-ph .ph-bar i:nth-child(2){width:12px}.shot-ph .ph-bar i:nth-child(3){width:12px;margin-left:auto}
.shot-ph .ph-logo{width:54px;height:54px;border-radius:15px;background:rgba(255,255,255,.22);backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:26px;margin:0 auto 20px;box-shadow:0 6px 16px rgba(0,0,0,.2)}
.shot-ph .ph-lines{display:grid;gap:11px;margin-bottom:auto}
.shot-ph .ph-lines b{height:11px;border-radius:6px;background:rgba(255,255,255,.30)}
.shot-ph .ph-lines b:nth-child(2){width:80%}.shot-ph .ph-lines b:nth-child(3){width:92%}.shot-ph .ph-lines b:nth-child(4){width:70%}
.shot-ph .ph-cta{height:38px;border-radius:12px;background:rgba(255,255,255,.9);margin:16px 0 12px;box-shadow:0 6px 16px rgba(0,0,0,.18)}
.shot-ph .ph-name{font-weight:700;font-size:14px;text-align:center;text-shadow:0 1px 3px rgba(0,0,0,.3)}

/* app body */
.app-body{display:grid;grid-template-columns:1fr 320px;gap:34px;margin:30px 0}
.desc h2{font-size:26px;font-weight:700;margin-bottom:14px}
.desc p{color:var(--ink-2);margin:0 0 14px}
.feats{list-style:none;padding:0;margin:18px 0;display:grid;gap:10px}
.feats li{padding-left:28px;position:relative;color:var(--ink-2)}
.feats li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.infobox{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;
  box-shadow:var(--shadow);align-self:start}
.infobox h3{font-size:17px;font-weight:700;margin-bottom:14px}
.infobox dl{display:grid;grid-template-columns:auto 1fr;gap:11px 14px;margin:0;font-size:13.5px}
.infobox dt{color:var(--ink-3)}
.infobox dd{margin:0;text-align:right;font-weight:500}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.sha{word-break:break-all}

/* ---------- category / download / err ---------- */
.cat-title{font-size:clamp(30px,5vw,46px);font-weight:700;margin-top:4px}
.cat-sub{color:var(--ink-3);margin:8px 0 22px}
.dl-page{max-width:720px}
.dl-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px;text-align:center;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;gap:12px}
.dl-card .app-icon{border-radius:24%;box-shadow:var(--shadow)}
.dl-card h1{font-size:30px;font-weight:700}
.dl-ver{color:var(--ink-3);font-size:14px}
.dl-status{color:var(--accent);font-weight:600;font-size:15px}
.dl-badges{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;color:var(--ink-2);font-size:13px;margin-top:6px}
.dl-instr{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;margin-top:20px}
.dl-instr h3{font-size:18px;font-weight:700;margin-bottom:14px}
.dl-instr ol{margin:0;padding-left:22px;color:var(--ink-2);display:grid;gap:10px}
.err{text-align:center;padding:80px 0}
.err h1{font-size:80px;font-weight:800;color:var(--line-2)}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);margin-top:50px;padding:44px 0 20px;background:var(--surface-2)}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.foot-col h4{font-size:13px;font-weight:600;margin-bottom:12px;color:var(--ink)}
.foot-col a{display:block;color:var(--ink-3);font-size:13.5px;padding:4px 0;transition:.15s}
.foot-col a:hover{color:var(--accent)}
.foot-about p{color:var(--ink-3);font-size:13.5px;max-width:340px;margin:12px 0 0}
.foot-bottom{color:var(--ink-3);font-size:12.5px;padding-top:26px;margin-top:26px;border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:820px){
  .app-body{grid-template-columns:1fr}
  .nav-cats{display:none}
  .nav-search{flex:1}
  .foot-in{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .app-hero{flex-direction:column;gap:16px}
  .card-grid{grid-template-columns:1fr 1fr}
  .foot-in{grid-template-columns:1fr}
  .shot{width:150px;height:300px}
}

/* ============ v2 additions: multilang portal components ============ */
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{flex:0 0 200px}
.lang-switch{position:relative}
.lang-btn{background:var(--surface);border:1px solid var(--line-2);color:var(--ink);border-radius:999px;
  height:36px;padding:0 13px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;white-space:nowrap}
.lang-btn:hover{border-color:var(--accent)}
.lang-menu{position:absolute;top:44px;right:0;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;min-width:170px;display:none;z-index:60}
.lang-menu.open{display:block}
.lang-menu a{display:block;padding:9px 15px;font-size:13.5px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.lang-menu a:last-child{border-bottom:0}
.lang-menu a:hover{background:var(--surface-2);color:var(--ink)}
.lang-menu a.on{color:var(--accent);font-weight:600}
.nav-cats a{font-size:13px}

.app-tagline{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px;line-height:1.45}
.sub-h{font-size:19px;font-weight:700;margin:22px 0 12px}
.bonus{display:flex;gap:14px;align-items:flex-start;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,var(--surface)),var(--surface));
  border:1px solid color-mix(in srgb,var(--accent) 30%,var(--line));border-radius:var(--radius);padding:18px;margin-top:22px}
.bonus-ic{font-size:26px;line-height:1}
.bonus b{font-size:15px}.bonus p{margin:4px 0 0;color:var(--ink-2);font-size:14px}

.install-sec{margin:40px 0}
.install-sec h2{font-size:clamp(22px,3vw,28px);font-weight:700;margin-bottom:18px}
.install-steps{list-style:none;counter-reset:st;padding:0;margin:0;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.install-steps li{counter-increment:st;position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 18px 18px 58px;box-shadow:var(--shadow);color:var(--ink-2);font-size:14px}
.install-steps li::before{content:counter(st);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;
  background:var(--accent);color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}

.faq-sec{margin:40px 0}
.faq-sec h2{font-size:clamp(22px,3vw,28px);font-weight:700;margin-bottom:16px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;padding:2px 18px;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;padding:15px 0;font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--accent);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 15px;color:var(--ink-2);font-size:14px;line-height:1.6}

.foot-adult{margin-top:12px;display:inline-block;font-size:12px;font-weight:600;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line-2);border-radius:999px;padding:5px 12px}