:root{
  color-scheme:light dark;
  --bg:#f5f6fa;
  --surface:#ffffff;
  --surface-2:#eef1f6;
  --text:#1d2330;
  --muted:#697386;
  --border:rgba(21,27,38,.08);
  --accent:#6d7ee8;
  --accent-soft:#e8ebff;
  --shadow:0 10px 30px rgba(24,31,45,.08);
}
html[data-theme="dark"]{
  --bg:#101218;
  --surface:#181b23;
  --surface-2:#20242e;
  --text:#f4f6fb;
  --muted:#9ca7ba;
  --border:rgba(255,255,255,.08);
  --accent:#9aa7ff;
  --accent-soft:#252b48;
  --shadow:0 14px 38px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,select{font:inherit}
button{color:inherit}
.app-shell{min-height:100dvh;padding-bottom:84px}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:18px 18px 12px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(18px)}
.topbar h1,.page-title h2{margin:0;font-size:28px;letter-spacing:-.035em}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-weight:700;font-size:11px;color:var(--muted)}
.icon-button,.text-button{border:0;background:var(--surface);box-shadow:0 0 0 1px var(--border);border-radius:14px;min-width:42px;min-height:42px}
.text-button{background:transparent;box-shadow:none;color:var(--accent);font-weight:700}
.view{padding:0 16px 24px;max-width:760px;margin:0 auto}
.page{display:none}
.page.active{display:block}
.hero{padding:22px;border:1px solid var(--border);background:linear-gradient(145deg,var(--surface),var(--accent-soft));border-radius:28px;box-shadow:var(--shadow);margin:8px 0 24px}
.hero h2{font-size:32px;line-height:1.02;letter-spacing:-.05em;margin:8px 0 12px;max-width:11ch}
.hero p,.panel p{color:var(--muted);line-height:1.5;margin-bottom:0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin:22px 2px 10px}
.section-head h3{margin:0;font-size:17px}
.app-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.app-card,.app-list-item,.quick-action,.panel{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow)}
.app-card{border-radius:22px;padding:16px;text-align:left;min-height:132px;display:flex;flex-direction:column;justify-content:space-between}
.app-card img,.app-list-item img{width:42px;height:42px;border-radius:12px;background:var(--surface-2);padding:7px}
.app-card strong{font-size:16px}
.app-card small,.app-list-item span,.activity-row span,.settings-list span{display:block;color:var(--muted);margin-top:4px}
.quick-actions{display:flex;gap:10px;overflow-x:auto;padding-bottom:2px}
.quick-action{border-radius:16px;padding:13px 15px;white-space:nowrap}
.panel{border-radius:20px;padding:16px;margin-bottom:12px}
.activity-row{display:flex;align-items:flex-start;gap:12px}
.activity-dot{width:10px;height:10px;margin-top:6px;border-radius:50%;background:var(--accent)}
.page-title{padding:18px 2px 16px}
.app-list{display:grid;gap:10px}
.app-list-item{border-radius:18px;padding:14px;display:flex;align-items:center;gap:13px;text-align:left}
.app-list-item .grow{flex:1}
.app-list-item .chevron{color:var(--muted)}
.empty-state{text-align:center;padding:28px 20px}
.settings-list{display:flex;align-items:center;justify-content:space-between;gap:16px}
select{background:var(--surface-2);border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:12px}
.bottom-nav{position:fixed;z-index:30;left:50%;bottom:10px;transform:translateX(-50%);width:calc(100% - 22px);max-width:720px;display:grid;grid-template-columns:repeat(4,1fr);padding:8px;border:1px solid var(--border);background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(20px);box-shadow:var(--shadow);border-radius:24px}
.nav-item{border:0;background:transparent;color:var(--muted);border-radius:17px;padding:8px 3px;font-size:11px;font-weight:700}
.nav-item span{display:block;font-size:19px;line-height:20px;margin-bottom:3px}
.nav-item.active{background:var(--accent-soft);color:var(--accent)}
.frame-shell{position:fixed;inset:0;z-index:100;background:var(--bg);display:grid;grid-template-rows:auto 1fr}
.frame-shell.hidden{display:none}
.frame-header{display:grid;grid-template-columns:44px 1fr 44px;gap:10px;align-items:center;padding:10px 12px calc(10px + env(safe-area-inset-top));border-bottom:1px solid var(--border);background:var(--surface)}
.frame-header>div{text-align:center}
#appFrame{width:100%;height:100%;border:0;background:var(--bg)}
@media(min-width:700px){
  .app-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}