/* qos: lihat DESIGN.md. Hanya light mode. Peran tiap warna ada di DESIGN.md. */
:root{
  color-scheme:light;
  --plane:#f5f7f9;--surface:#fff;
  --ink:#14202b;--ink-2:#3f4c58;--muted:#566471;
  --hair:#e4e9ed;--line:#cbd3da;--rule:#78848e;--track:#e6ebef;--wash:#eef2f5;
  --blue:#2a78d6;--blue-ink:#1b57a6;--blue-hover:#154585;--blue-tint:#e8f0fa;
  --orange:#eb6834;
  --red:#d03b3b;--red-ink:#a31f1f;--red-tint:#fbeded;
  --green:#0ca30c;--green-ink:#006300;--green-tint:#ebf5eb;
  --r-ctl:6px;--r-panel:8px;
  --h-ctl:40px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--surface);color:var(--ink);
  font:1rem/1.6 system-ui,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}

/* affordance dasar: sekali di sini, berlaku untuk semua kontrol */
a[href],button,summary,select,label[for],[role=button],input[type=checkbox],input[type=radio],label:has(input[type=checkbox]){cursor:pointer}
button:disabled,input:disabled,select:disabled,textarea:disabled{cursor:not-allowed}
:focus-visible,input[type=date]:focus-within,input[type=month]:focus-within{outline:3px solid var(--blue-ink);outline-offset:2px}

.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:.5rem;top:-4rem;z-index:10;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:var(--r-ctl)}
.skip:focus{top:.5rem}

/* header: polos; identitas hanya tanda kecil dua batang (pasangan serat) di samping nama */
.top{background:var(--surface);border-bottom:1px solid var(--hair)}
.bar{max-width:68rem;margin:0 auto;padding:.4rem 1.25rem;display:flex;flex-wrap:wrap;align-items:center;gap:0 2rem}
.brand{display:inline-flex;align-items:center;min-height:var(--h-ctl);font-size:1.25rem;font-weight:700;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.brand::before{content:"";flex:none;width:1.1rem;height:11px;margin-right:.55rem;border-radius:1px;background:linear-gradient(var(--blue) 0 4px,transparent 4px 7px,var(--orange) 7px 11px)}
.top nav{display:flex;flex-wrap:wrap;flex:1;gap:0 .25rem}
.top nav a,.acct a{display:inline-flex;align-items:center;min-height:var(--h-ctl);padding:0 .8rem;color:var(--ink-2);text-decoration:none;border-radius:var(--r-ctl)}
.top nav a:hover,.acct a:hover{background:var(--wash);color:var(--ink)}
.top nav a[aria-current]{background:var(--wash);color:var(--ink);font-weight:700}
.acct{display:flex;align-items:center;flex-wrap:wrap;margin:0}
.acct .role{color:var(--muted);font-size:.875rem;margin-left:.4rem}

main{max-width:68rem;margin:0 auto;padding:2.5rem 1.25rem 3.5rem}
.foot{max-width:68rem;margin:0 auto;padding:0 1.25rem 2.5rem;color:var(--muted);font-size:.875rem}
.foot p{margin:0}

h1{font-size:1.5rem;line-height:1.25;letter-spacing:-.015em;font-weight:700;margin:0 0 .35rem}
h2{font-size:1.125rem;line-height:1.3;font-weight:700;margin:3rem 0 1rem}
p{margin:0 0 .75rem}
.lede{max-width:68ch;color:var(--muted);margin:0}
.muted{color:var(--muted)}.small{font-size:.875rem}
a{color:var(--blue-ink);text-underline-offset:.2em;text-decoration-thickness:1px}
a:hover{color:var(--blue-hover);text-decoration-thickness:2px}
code{background:var(--wash);padding:.1rem .4rem;border-radius:4px;font-size:.9em}

.head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem 2rem;margin-bottom:2rem}
.actions{display:flex;flex-wrap:wrap;gap:.6rem}

/* halaman masuk: satu kolom sempit di tengah */
.gate{max-width:22rem;margin:4vh auto 0}
.gate h1{margin-bottom:1.5rem}
.gate .form{max-width:none}
.gate button{width:100%}

/* tombol: utama = biru tua terisi; .quiet = bergaris */
.btn,button{font:inherit;font-weight:600;display:inline-flex;align-items:center;justify-content:center;min-height:var(--h-ctl);padding:0 1.15rem;
  border:1px solid var(--blue-ink);background:var(--blue-ink);color:#fff;border-radius:var(--r-ctl);text-decoration:none}
.btn:hover,button:hover{background:var(--blue-hover);border-color:var(--blue-hover);color:#fff}
.btn:active,button:active{transform:translateY(1px)}
.btn.quiet,button.quiet{background:var(--surface);color:var(--blue-ink);border-color:var(--line)}
.btn.quiet:hover,button.quiet:hover{background:var(--blue-tint);color:var(--blue-hover);border-color:var(--blue-ink)}
button:disabled{opacity:.55;transform:none}
button.plain{background:none;border:0;color:var(--ink-2);font-weight:500;padding:0 .8rem}
button.plain:hover{background:var(--wash);color:var(--ink)}

/* form */
.form{display:grid;gap:1.25rem;max-width:30rem}
.field{display:grid;gap:.35rem}
.field>label,.field .lbl{font-weight:600}
.hint{margin:0;color:var(--muted);font-size:.875rem}
input,select,textarea{font:inherit;color:var(--ink);background:var(--surface);width:100%;min-height:var(--h-ctl);padding:.45rem .75rem;
  border:1px solid var(--rule);border-radius:var(--r-ctl)}
textarea{min-height:5.5rem;resize:vertical}
input:hover,select:hover,textarea:hover{border-color:var(--ink-2)}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
.check{display:flex;align-items:center;gap:.6rem;min-height:var(--h-ctl)}
input[type=checkbox]{width:1.25rem;height:1.25rem;min-height:0;padding:0;accent-color:var(--blue-ink)}
.inline-form{display:flex;flex-wrap:wrap;align-items:end;gap:.75rem 1rem}
.inline-form .field{min-width:11rem}
.inline-form select,.inline-form input{width:auto;min-width:11rem}
.inline-form .grow input{min-width:min(18rem,100%)}
.filters{margin-bottom:1.25rem}
.count{margin:0 0 .5rem}
.count a{margin-left:.5rem}
a[href^="tel:"]{white-space:nowrap}
.group{display:grid;gap:1.25rem;border:0;margin:.5rem 0 0;padding:0;min-width:0}
.group legend{font-weight:700;font-size:1.125rem;padding:0;margin-bottom:1rem}
form.form+table.ledger{margin-top:1.75rem}

/* pesan: latar lembut tanpa garis tepi; kata "Gagal."/"Berhasil." membawa maknanya */
.flash{max-width:44rem;margin:0 0 1.5rem;padding:.8rem 1rem;border-radius:var(--r-ctl)}
.flash ul{margin:.3rem 0 0;padding-left:1.2rem}
.flash.ok{background:var(--green-tint);color:var(--green-ink)}
.flash.bad{background:var(--red-tint);color:var(--red-ink)}
.flash p{margin:0}
.tag{display:inline-block;padding:.1rem .6rem;border-radius:4px;font-weight:600;font-size:.875rem}
.tag.ok{color:var(--green-ink);background:var(--green-tint)}
.tag.bad{color:var(--red-ink);background:var(--red-tint)}
.status{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem .75rem;margin:0 0 1rem;color:var(--ink-2)}
.summary{display:flex;flex-wrap:wrap;gap:.25rem 1.75rem;margin:0 0 1.75rem;padding:0;list-style:none;color:var(--ink-2)}
.summary strong{color:var(--ink)}
.tag+.tag{margin-left:.35rem}
.isi{white-space:pre-line;overflow-wrap:anywhere}
.bad-ink{color:var(--red-ink);font-weight:700}

/* tabel: tanpa kotak, satu garis di bawah judul kolom, garis tipis antarbaris */
.ledger{width:100%;border-collapse:collapse}
.ledger th{text-align:left;font-weight:500;font-size:.8125rem;color:var(--muted);padding:.5rem .75rem;border-bottom:1px solid var(--line);vertical-align:bottom}
.ledger td{padding:1rem .75rem;border-bottom:1px solid var(--hair);vertical-align:top}
.ledger tbody tr:hover{background:var(--plane)}
.ledger td.empty{color:var(--ink-2)}
.ledger tbody tr:has(td.empty):hover{background:none}
.ledger tr.warnrow td{background:var(--red-tint)}
.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.ledger.tight th,.ledger.tight td{padding-left:.5rem;padding-right:.5rem}
.ledger td:first-child{min-width:10rem}
.du{display:flex;align-items:center;justify-content:flex-end}
.du::before{content:"";flex:none;width:.8rem;height:2px;margin-right:.45rem;background:var(--c)}
.du.out{--c:var(--blue)}.du.in{--c:var(--orange)}
.sub{display:block;color:var(--muted);font-size:.875rem}
.scroll{overflow-x:auto}
.scroll:focus-visible{outline-offset:-3px}

/* fakta ringkas (dl) */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:1rem 2rem;margin:1.25rem 0 1.5rem}
.facts dt{color:var(--muted);font-size:.875rem}
.facts dd{margin:.1rem 0 0;font-weight:600;overflow-wrap:anywhere}
.kv{display:grid;grid-template-columns:12rem 1fr;max-width:48rem;margin:0;border-top:1px solid var(--hair)}
.kv dt,.kv dd{margin:0;padding:.8rem .5rem;border-bottom:1px solid var(--hair)}
.kv dt{color:var(--muted)}
.kv dd{overflow-wrap:anywhere}

/* tab rentang: kontrol bersegmen */
.seg{display:flex;gap:2px;width:max-content;max-width:100%;margin:0 0 1.25rem;padding:3px;border-radius:calc(var(--r-ctl) + 3px);background:var(--wash)}
.seg a{display:inline-flex;align-items:center;justify-content:center;min-width:3.25rem;min-height:calc(var(--h-ctl) - 6px);padding:0 1rem;color:var(--ink-2);font-weight:600;text-decoration:none;border-radius:var(--r-ctl)}
.seg a:hover{background:var(--hair);color:var(--ink)}
.seg a[aria-current]{background:var(--ink);color:#fff}
.seg a:focus-visible{outline-offset:1px}

/* grafik dan perintah: tanpa kotak untuk grafik, latar lembut untuk blok perintah */
.chartbox{max-width:60rem}
.cmd{background:var(--plane);border-radius:var(--r-panel);padding:1.1rem 1.25rem;margin:0;overflow-x:auto;
  font:.9rem/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}

/* grafik */
svg.chart{display:block;width:100%;height:auto}
svg.chart.chart-narrow{display:none}
svg .grid{stroke:var(--hair);stroke-width:1}
svg .base{stroke:var(--rule);stroke-width:1}
svg .tick{fill:var(--muted);font-size:12px;paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round}
svg .tick-empty{fill:var(--ink-2);font-size:14px}
svg .line{fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
svg .c-out{stroke:var(--blue)}svg .c-in{stroke:var(--orange)}
svg .dot{stroke:#fff;stroke-width:2}svg .dot.c-out{fill:var(--blue)}svg .dot.c-in{fill:var(--orange)}
svg .limit{stroke:var(--ink);stroke-width:1.5;stroke-dasharray:5 4}
svg .limit-lbl{fill:var(--ink);font-size:12px;font-weight:700;paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round}
.chart-narrow .tick,.chart-narrow .limit-lbl{font-size:15px}

/* legenda: kunci garis, bukan kotak */
.legend{display:flex;flex-wrap:wrap;gap:.3rem 1.5rem;margin:1rem 0 0;padding:0;list-style:none;font-size:.9375rem;color:var(--ink-2)}
.key::before{content:"";display:inline-block;width:1.2rem;height:2px;margin-right:.5rem;vertical-align:middle;background:var(--c,var(--ink))}
.key.out{--c:var(--blue)}.key.in{--c:var(--orange)}
.key.lim::before{background:repeating-linear-gradient(90deg,var(--ink) 0 5px,transparent 5px 8px)}
.key.tick::before{width:2px;height:.9rem;vertical-align:-.15rem}
.peaks,.note{margin:.75rem 0 0}
.note{margin-bottom:1.25rem}

/* meter pemakaian: dua batang tipis (download, upload) satu skala limit */
.meter{display:block;width:100%;min-width:12rem;max-width:18rem;height:10px;border-radius:3px;overflow:hidden;margin-bottom:.35rem}
.meter .trk{fill:var(--track)}.meter .dl{fill:var(--blue)}.meter .ul{fill:var(--orange)}
.meter .tk{stroke:var(--ink);stroke-width:1.5;vector-effect:non-scaling-stroke}
.pct{font-variant-numeric:tabular-nums;font-weight:600}

/* user: satu form per baris */
.urow{display:grid;grid-template-columns:minmax(8rem,1fr) 9rem auto minmax(12rem,1.4fr) auto;gap:.5rem 1rem;align-items:end;padding:1rem 0;border-bottom:1px solid var(--hair)}
.urow .who{align-self:center;overflow-wrap:anywhere}
.urow .who .small{display:block}

@media (prefers-reduced-motion:no-preference){
  .btn,button,.seg a,.top nav a,.acct a{transition:background-color .08s,border-color .08s}
}

@media (max-width:760px){
  :root{--h-ctl:44px}
  main{padding-top:1.5rem}
  h1{font-size:1.375rem}
  h2{margin-top:2.25rem}
  .head{margin-bottom:1.5rem}
  .stack thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .stack,.stack tbody,.stack tr,.stack td{display:block;width:100%}
  .stack tr{padding:.9rem 0;border-bottom:1px solid var(--hair)}
  .stack tbody tr:hover{background:none}
  .stack td{position:relative;padding:.25rem 0 .25rem 7.75rem;border:0;text-align:left;min-height:1.8rem}
  .stack td::before{content:attr(data-label);position:absolute;left:0;top:.4rem;width:7.25rem;color:var(--muted);font-size:.875rem}
  .stack td.num{text-align:left;white-space:normal}
  .stack .du{justify-content:flex-start}
  .ledger td:first-child{min-width:0}
  .stack td.empty{padding-left:0}.stack td.empty::before{content:none}
  .stack tr.warnrow{background:var(--red-tint)}
  .stack tr.warnrow td{background:none}
  .brand{order:1}
  .acct{order:2;margin-left:auto}
  .top nav{order:3;flex-basis:100%}
  .top nav a{padding:0 .6rem}
  .seg a{min-height:var(--h-ctl)}
  .kv{grid-template-columns:1fr}
  .kv dt{border-bottom:0;padding-bottom:0}
  .urow{grid-template-columns:1fr}
  .inline-form{align-items:stretch}
  .inline-form .field,.inline-form select,.inline-form input{width:100%}
  svg.chart.chart-wide{display:none}svg.chart.chart-narrow{display:block}
}