/* Apple HIG-inspired: system font, neutral grays, one blue accent, grouped inset lists, translucent bars */
:root{
  --bg:#f2f2f7;--panel:#ffffff;--panel2:#f2f2f7;--fill:rgba(120,120,128,.12);--text:#1d1d1f;--muted:#6e6e73;--line:rgba(60,60,67,.14);
  --accent:#0071e3;--accent-fg:#fff;--accent-soft:rgba(0,113,227,.1);
  --ok:#248a3d;--ok-soft:rgba(52,199,89,.15);--warn:#b25000;--warn-soft:rgba(255,159,10,.16);--bad:#d70015;--bad-soft:rgba(255,59,48,.12);
  --bar:rgba(255,255,255,.72);--r:12px;--shadow:0 0 0 .5px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.04);color-scheme:light}
@media(prefers-color-scheme:dark){:root{
  --bg:#0b1220;--panel:#151e30;--panel2:#1c2740;--fill:rgba(120,120,128,.24);--text:#f5f5f7;--muted:#98989d;--line:rgba(130,150,190,.2);
  --accent:#3d9bff;--accent-fg:#fff;--accent-soft:rgba(61,155,255,.18);
  --ok:#30d158;--ok-soft:rgba(48,209,88,.18);--warn:#ffb340;--warn-soft:rgba(255,159,10,.2);--bad:#ff453a;--bad-soft:rgba(255,69,58,.18);--bar:rgba(15,23,40,.7);--shadow:0 0 0 .5px rgba(130,160,220,.12),0 8px 24px rgba(0,0,0,.25);color-scheme:dark}}
*{box-sizing:border-box}
body{background-image:radial-gradient(900px 500px at 12% -10%,rgba(0,113,227,.16),transparent 60%),radial-gradient(800px 500px at 100% 0%,rgba(48,200,200,.12),transparent 60%);background-attachment:fixed;background-repeat:no-repeat}
@media(prefers-color-scheme:dark){body{background-image:radial-gradient(900px 520px at 10% -10%,rgba(61,155,255,.22),transparent 60%),radial-gradient(800px 520px at 100% 0%,rgba(45,212,191,.14),transparent 60%)}}html{-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased}
body{margin:0;background-color:var(--bg);color:var(--text);font:15px/1.47 -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Roboto,sans-serif;letter-spacing:-.01em;min-height:100vh;min-height:100dvh}
h1{font-size:2rem;line-height:1.15;font-weight:700;letter-spacing:-.025em;margin:0 0 .35rem}h2{font-size:1.05rem;font-weight:600;margin:0 0 .5rem}h3{font-size:1rem;font-weight:600;margin:0}p{margin:.25rem 0 .75rem}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.muted{color:var(--muted)}.small{font-size:.82rem}.mono{font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace;font-size:.85em}
.hidden{display:none!important}.row{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.grow{flex:1}.stack>*+*{margin-top:1.25rem}
.card{background:var(--panel);border-radius:var(--r);padding:1.1rem 1.25rem;box-shadow:var(--shadow)}
.card>h2:first-child{font-size:1.15rem}
.center-page{display:grid;place-items:center;padding:1rem}.center-page .card{width:100%;max-width:380px;padding:2rem 1.75rem;border-radius:18px}.center-page .card[data-narrow]{max-width:420px}
.center-page .logo{justify-content:center;flex-direction:column;gap:.6rem}.center-page .logo svg{width:44px;height:44px}.center-page h1{text-align:center;font-size:1.6rem}.center-page .card>div>p{text-align:center}
/* buttons & fields */
.btn{appearance:none;border:0;background:var(--fill);color:var(--accent);padding:.55rem 1rem;border-radius:10px;font:inherit;font-weight:500;cursor:pointer;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:.4rem;text-decoration:none;transition:filter .15s,background .15s}
.btn:hover{filter:brightness(.96);text-decoration:none}.btn:active{filter:brightness(.9)}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 45%,transparent);outline-offset:1px}
.btn.primary{background:linear-gradient(145deg,#2f9bff,#0071e3);color:var(--accent-fg)}.btn.danger{color:var(--bad);background:var(--bad-soft)}.btn.danger.solid{background:var(--bad);color:#fff}
.btn.sm{min-height:32px;padding:.2rem .8rem;font-size:.85rem;border-radius:8px}.btn.block{width:100%}.btn[disabled]{opacity:.45;cursor:not-allowed}
label{display:block;font-weight:500;font-size:.8rem;color:var(--muted);margin:.9rem 0 .3rem}
input,select,textarea{width:100%;padding:.65rem .85rem;border:0;border-radius:10px;background:var(--fill);color:var(--text);font:inherit;min-height:44px;letter-spacing:inherit}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:.7}
input[type=checkbox]{width:1.15rem;height:1.15rem;min-height:0;accent-color:var(--accent)}.check{display:flex;gap:.6rem;align-items:center;font-weight:400;font-size:.95rem;color:var(--text);margin:.7rem 0}
.code-input{letter-spacing:.3em;text-align:center;font-size:1.5rem;font-variant-numeric:tabular-nums}
.alert{padding:.7rem .95rem;border-radius:10px;font-size:.88rem;margin:.75rem 0}.alert.err{background:var(--bad-soft);color:var(--bad)}.alert.ok{background:var(--ok-soft);color:var(--ok)}.alert.warn{background:var(--warn-soft);color:var(--warn)}.alert.info{background:var(--accent-soft);color:var(--accent)}
.badge{display:inline-block;padding:.08rem .55rem;border-radius:99px;font-size:.72rem;font-weight:600;background:var(--fill);color:var(--muted)}.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.bad{background:var(--bad-soft);color:var(--bad)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.badge.acc{background:var(--accent-soft);color:var(--accent)}
.divider{display:flex;align-items:center;gap:.75rem;color:var(--muted);font-size:.8rem;margin:1rem 0}.divider:before,.divider:after{content:"";flex:1;height:.5px;background:var(--line)}
.logo{display:flex;align-items:center;gap:.55rem;font-weight:600;font-size:1.05rem}.logo svg{width:28px;height:28px}
/* shell */
.shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh;min-height:100dvh}
.side{background:var(--bar);-webkit-backdrop-filter:saturate(180%) blur(24px);backdrop-filter:saturate(180%) blur(24px);border-right:.5px solid var(--line);padding:1.1rem .75rem;display:flex;flex-direction:column;gap:.1rem;position:sticky;top:0;height:100vh;height:100dvh;overflow:auto}
.side .logo{padding:.25rem .6rem 1.1rem}.side h4{margin:1.3rem .75rem .3rem;font-size:.7rem;font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--muted)}
.nav a{display:flex;align-items:center;gap:.65rem;padding:.5rem .7rem;border-radius:8px;color:var(--text);text-decoration:none;font-weight:500;min-height:38px}.nav a svg{width:18px;height:18px;flex:none;color:var(--accent)}
.nav a:hover{background:var(--fill)}.nav a[aria-current=page]{background:linear-gradient(145deg,#2f9bff,#0071e3);color:var(--accent-fg)}.nav a[aria-current=page] svg{color:var(--accent-fg)}
.side .foot{margin-top:auto;padding:1rem .5rem 0;border-top:.5px solid var(--line)}.side .foot .small{margin-bottom:.6rem;overflow-wrap:anywhere}.side .foot .btn{width:100%}
.top{display:none}.main{padding:2rem clamp(1rem,4vw,3rem) 3rem;max-width:1080px;width:100%}
.page-head{margin-bottom:1.5rem}.page-head p{margin:0}.page-head .row{align-items:flex-end}
.scrim{display:none}
/* grids */
.grid{display:grid;gap:1rem;margin-bottom:1rem}.g-stats{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.g-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}.g-apps{grid-template-columns:repeat(auto-fill,minmax(min(100%,170px),1fr));gap:1.25rem}
.stat .n{font-size:2rem;font-weight:700;letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums}.stat .l{color:var(--muted);font-size:.82rem}
.app-tile{display:flex;flex-direction:column;align-items:center;text-align:center;gap:.5rem;text-decoration:none!important;color:var(--text);padding:1.25rem .75rem;border-radius:16px;background:var(--panel);box-shadow:var(--shadow);transition:transform .15s}.app-tile:hover{transform:translateY(-2px)}.app-tile b{font-weight:600}
.app-ico{width:56px;height:56px;border-radius:14px;background:linear-gradient(145deg,#4db0ff,#0071e3);box-shadow:0 6px 16px rgba(0,113,227,.35);color:#fff;display:grid;place-items:center;font-weight:600;font-size:1.5rem}
/* inset grouped lists */
.item{display:flex;gap:.9rem;align-items:center;padding:.8rem 0;border-top:.5px solid var(--line)}.item:first-child{border-top:0}.item .ico{width:32px;height:32px;border-radius:8px;background:var(--fill);color:var(--muted);display:grid;place-items:center;flex:none}.item .ico svg{width:18px;height:18px}
.item .body{flex:1;min-width:0}.item .body b{display:block;font-weight:500;overflow-wrap:anywhere}.item .body span{display:block}
section.card>p.muted.small{margin-bottom:.6rem}
/* tables */
.tbl-wrap{overflow-x:auto;margin-top:.5rem}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.7rem .75rem;border-bottom:.5px solid var(--line);vertical-align:middle}tr:last-child td{border-bottom:0}th{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);white-space:nowrap}td.actions{white-space:nowrap;text-align:right}
.qr{width:200px;height:200px;border-radius:12px;background:#fff;padding:8px}
.codes{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.4rem;font-family:ui-monospace,"SF Mono",monospace;background:var(--fill);padding:.9rem;border-radius:10px}
.chart{width:100%;height:auto}.chart .s{fill:var(--accent)}.chart .f{fill:var(--bad)}.chart text{fill:var(--muted);font-size:11px;text-anchor:middle}.chart line{stroke:var(--line)}
.legend{display:flex;gap:1rem;font-size:.78rem;color:var(--muted)}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:.35rem}.dot.s{background:var(--accent)}.dot.f{background:var(--bad)}
.meter{height:8px;border-radius:99px;background:var(--fill);overflow:hidden;margin:.5rem 0}.meter>svg{display:block;width:100%;height:100%}.meter rect{fill:var(--accent)}
.toggle-row{display:flex;gap:1rem;justify-content:space-between;align-items:center;padding:.9rem 0;border-top:.5px solid var(--line)}.toggle-row:first-of-type{border-top:0}.toggle-row input[type=number]{width:96px}
.toggle-row input[type=checkbox]{appearance:none;-webkit-appearance:none;width:51px;height:31px;border-radius:99px;background:var(--fill);position:relative;cursor:pointer;flex:none;transition:background .2s;min-height:0}
.toggle-row input[type=checkbox]:before{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:50%;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.25);transition:transform .2s}
.toggle-row input[type=checkbox]:checked{background:#34c759}.toggle-row input[type=checkbox]:checked:before{transform:translateX(20px)}
/* dialogs & toast */
dialog{border:0;border-radius:18px;background:var(--panel);color:var(--text);padding:1.5rem;width:min(480px,calc(100vw - 1.5rem));box-shadow:0 24px 80px rgba(0,0,0,.3)}dialog::backdrop{background:rgba(0,0,0,.35);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
dialog h2{font-size:1.25rem;font-weight:700}dialog .actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1.25rem;flex-wrap:wrap}
#toasts{position:fixed;bottom:1.25rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;gap:.5rem;z-index:50;width:min(400px,calc(100vw - 2rem))}
.toast{background:var(--bar);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);color:var(--text);padding:.75rem 1rem;border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.18);font-weight:500;text-align:center}.toast.err{color:var(--bad)}
.spinner{width:22px;height:22px;border:2.5px solid var(--fill);border-top-color:var(--muted);border-radius:50%;animation:sp .8s linear infinite;margin:3rem auto}@keyframes sp{to{transform:rotate(360deg)}}
.seg{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:1rem}
.btn svg{width:18px;height:18px;flex:none}
/* ---- tablet / mobile ---- */
@media(max-width:900px){
  .shell{display:block}
  .top{display:flex;align-items:center;gap:.5rem;position:sticky;top:0;z-index:20;background:var(--bar);-webkit-backdrop-filter:saturate(180%) blur(24px);backdrop-filter:saturate(180%) blur(24px);border-bottom:.5px solid var(--line);padding:.4rem .6rem;padding-top:max(.4rem,env(safe-area-inset-top))}
  .top .burger{min-width:44px;padding:0;background:none}.top .logo{flex:1}
  .side{position:fixed;inset:0 auto 0 0;width:min(300px,86vw);z-index:40;transform:translateX(-102%);transition:transform .25s ease;background:var(--panel);box-shadow:0 0 40px rgba(0,0,0,.25)}
  body.nav-open .side{transform:none}body.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:30}
  .main{padding:1.25rem 1rem calc(2rem + env(safe-area-inset-bottom))}h1{font-size:1.75rem}
  table.cards thead{display:none}table.cards,table.cards tbody,table.cards tr,table.cards td{display:block;width:100%}
  table.cards tr{padding:.5rem 0;border-bottom:.5px solid var(--line)}table.cards tr:last-child{border-bottom:0}
  table.cards td{border:0;padding:.3rem 0;display:flex;justify-content:space-between;gap:1rem;text-align:right}
  table.cards td:before{content:attr(data-l);font-size:.72rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);text-align:left;flex:none;padding-top:.15rem}
  table.cards td.actions{justify-content:flex-start;flex-wrap:wrap;gap:.4rem;padding-top:.5rem;white-space:normal}table.cards td.actions:before{display:none}
  .page-head .row{flex-direction:column;align-items:stretch}.page-head .btn{width:100%}
  .item{flex-wrap:wrap}.item>.btn,.item>.row{margin-left:calc(32px + .9rem)}
  dialog{margin:auto auto 0;border-radius:18px 18px 0 0;width:100vw;max-width:100vw;padding-bottom:calc(1.5rem + env(safe-area-inset-bottom))}
  input,select,textarea{font-size:16px}.g-apps{grid-template-columns:repeat(3,1fr);gap:.75rem}.app-tile{padding:1rem .4rem}
}
@media(max-width:420px){.stat .n{font-size:1.6rem}.code-input{font-size:1.25rem}.g-apps{grid-template-columns:repeat(2,1fr)}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.center{text-align:center}.dots{display:flex;gap:6px;justify-content:center}.dots i{width:7px;height:7px;border-radius:99px;background:var(--fill);transition:all .2s}.dots i.on{background:var(--accent);width:22px}
.ob h1{text-align:center}.ob .muted{text-align:center}.ob .item{text-align:left}
.center-page{min-height:100vh;min-height:100dvh}.ob .item .muted{text-align:left}
/* form spacing: breathing room between last field, hint text and the submit button */
form .btn.block{margin-top:1.5rem}form .code-input+.btn.block{margin-top:1.25rem}
form p.small{margin:.5rem 0 0}form p.small+.btn.block{margin-top:1.25rem}
.center-page .card.stack{gap:0}.center-page .card.stack>*+*{margin-top:1.25rem}
.center-page .divider{margin:1.25rem 0}