:root{--bg:#f2f2f7;--card:#fff;--ink:#000;--mut:#80808a;--sep:rgba(60,60,67,.18);--acc:#007aff;--tint:rgba(0,122,255,.14);--bad:#ff3b30;--fill:rgba(120,120,128,.16);
--glass:rgba(255,255,255,.62);--rim:rgba(255,255,255,.75);--shadow:0 8px 28px rgba(20,30,60,.14);--b1:rgba(0,122,255,.16);--b2:rgba(52,199,89,.12)}
@media(prefers-color-scheme:dark){:root{--bg:#000;--card:#1c1c1e;--ink:#fff;--mut:#98989f;--sep:rgba(84,84,88,.5);--acc:#0a84ff;--tint:rgba(10,132,255,.24);--bad:#ff453a;--fill:rgba(120,120,128,.32);
--glass:rgba(48,48,52,.58);--rim:rgba(255,255,255,.16);--shadow:0 10px 30px rgba(0,0,0,.6);--b1:rgba(10,132,255,.26);--b2:rgba(48,209,88,.14)}}
@media(prefers-reduced-transparency:reduce){:root{--glass:var(--card)}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{color-scheme:light dark}
body{margin:0;min-height:100vh;color:var(--ink);font:17px/1.3 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased;
background:radial-gradient(60rem 28rem at -10% -5%,var(--b1),transparent 60%),radial-gradient(50rem 26rem at 110% 105%,var(--b2),transparent 60%),var(--bg);background-attachment:fixed;
padding:env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left)}
main{max-width:34rem;margin:0 auto;padding:0 1rem calc(8rem + env(safe-area-inset-bottom))}
a{color:var(--acc);text-decoration:none}
h1{font-size:2.2rem;line-height:1.1;font-weight:700;letter-spacing:-.025em;margin:0}
h2{font-size:.82rem;font-weight:400;color:var(--mut);margin:1.7rem 1.1rem .45rem}
h2 a{color:inherit}
.title{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 0 .3rem}
.pager{display:flex;gap:.5rem}
.pager a{display:grid;place-items:center;width:2.5rem;height:2.5rem;border-radius:50%;font-size:1.5rem;line-height:1;padding-bottom:.15rem}
.glass,.pager a,.seg,.tabs,button.plain,.btn.plain{background:var(--glass);border:1px solid var(--rim);-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);box-shadow:var(--shadow)}
.group{background:var(--card);border-radius:22px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.group>*+*{border-top:.5px solid var(--sep)}
.field{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.25rem 1.1rem;min-height:3rem}
.field>span{white-space:nowrap}
.field.col{display:grid;grid-template-columns:1fr;gap:.15rem;padding:.8rem 1.1rem .5rem}
.lh{display:flex;justify-content:space-between}
output{color:var(--mut);font-variant-numeric:tabular-nums}
input,select,textarea{font:inherit;color:var(--ink);background:none;border:0;outline:0;min-width:0;width:100%;text-align:right;padding:.55rem 0;-webkit-appearance:none;appearance:none;border-radius:0}
.field input[type=time]{width:auto;background:var(--fill);border-radius:999px;padding:.35rem .8rem}
select{direction:rtl;color:var(--acc)}
textarea{text-align:left;resize:none;padding:.8rem 1.1rem;margin:0 -1.1rem;width:calc(100% + 2.2rem)}
::placeholder{color:var(--mut);opacity:1}
input[type=range]{padding:0;height:2rem;background:none}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:3px;background:linear-gradient(to right,var(--acc) var(--p,50%),var(--fill) var(--p,50%))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:38px;height:24px;margin-top:-9px;border-radius:12px;background:#fff;box-shadow:0 1px 1px rgba(0,0,0,.1),0 3px 9px rgba(0,0,0,.28)}
input[type=range]::-moz-range-track{height:6px;border-radius:3px;background:linear-gradient(to right,var(--acc) var(--p,50%),var(--fill) var(--p,50%))}
input[type=range]::-moz-range-thumb{width:38px;height:24px;border:0;border-radius:12px;background:#fff;box-shadow:0 3px 9px rgba(0,0,0,.28)}
button,.btn{font:inherit;font-weight:600;display:block;width:100%;margin-top:1rem;padding:.95rem 1rem;border:0;border-radius:999px;background:linear-gradient(180deg,color-mix(in srgb,var(--acc) 88%,#fff),var(--acc));color:#fff;text-align:center;cursor:pointer;box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 8px 20px color-mix(in srgb,var(--acc) 32%,transparent)}
button:active,.btn:active{transform:scale(.98);opacity:.85}
button.plain,.btn.plain{color:var(--acc);background:var(--glass)}
button.danger{background:none;border:0;box-shadow:none;color:var(--bad);font-weight:400;margin-top:0;border-radius:0;backdrop-filter:none}
button.x{background:none;box-shadow:none;color:var(--mut);width:auto;margin:0;padding:.3rem .3rem;font-size:1.5rem;font-weight:300;line-height:1}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.item{display:grid;grid-template-columns:3.1rem 1fr auto;align-items:center;gap:.4rem;padding:.65rem 1.1rem}
.item .t{color:var(--mut);font-variant-numeric:tabular-nums;font-size:.95rem}
.item small{display:block;color:var(--mut);font-size:.85rem}
.item.two{grid-template-columns:1fr;gap:.1rem}
.hint,.empty{color:var(--mut);font-size:.85rem;margin:.55rem 1.1rem 0}
.err{color:var(--bad);margin:.7rem 1.1rem 0}
.seg{display:grid;grid-template-columns:repeat(3,1fr);border-radius:999px;padding:4px;margin:1rem 0 0}
.seg a{text-align:center;color:var(--ink);padding:.45rem 0;border-radius:999px;font-size:.92rem}
.seg [aria-current]{background:var(--card);font-weight:600;box-shadow:0 1px 4px rgba(0,0,0,.18)}
#exp{font:.8rem/1.45 ui-monospace,SFMono-Regular,Menlo,monospace;text-align:left;padding:.9rem 1.1rem;resize:none;margin:0;width:100%;min-height:15rem}
.tabs{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(.7rem + env(safe-area-inset-bottom));width:min(22rem,calc(100% - 2rem));display:grid;grid-template-columns:repeat(3,1fr);gap:.2rem;padding:.35rem;border-radius:999px;z-index:5}
.tabs a{display:grid;justify-items:center;gap:.08rem;color:var(--mut);font-size:.68rem;padding:.45rem 0 .35rem;border-radius:999px}
.tabs a[aria-current]{color:var(--acc);background:var(--tint)}
.tabs svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.login{padding-top:22vh}
.login h1{margin-bottom:1.3rem}