:root{
  --cover:#151A33; --cover-deep:#0E1226;
  --paper:#F2F4F8; --paper-alt:#E5E9F0;
  --ink:#1D2433; --ink-muted:#5A6472;
  --accent:#3FB4CB; --accent-deep:#1B6E82;
  --teal:#2BD4A4; --teal-deep:#177A5E;
  --warn:#B03A48;
  --line:#CDD5E0; --line-soft:#DCE2EB;
  --mono:"Courier New",Courier,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --radius:6px;
  --shadow:0 1px 3px rgba(14,18,38,.10),0 4px 14px rgba(14,18,38,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--cover);
  color:var(--paper);
  font-family:var(--sans);
  line-height:1.55;
  -webkit-text-size-adjust:100%;
  overscroll-behavior-y:none;
}
button{font-family:inherit}
a{color:var(--accent-deep);text-decoration:none}
[hidden]{display:none!important}

/* layout shell */
#app{max-width:520px;margin:0 auto;min-height:100dvh;position:relative}
.screen{padding:0 16px calc(92px + env(safe-area-inset-bottom)) 16px;animation:fade .28s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* header */
.hdr{position:sticky;top:0;z-index:20;background:var(--cover);
  padding:calc(env(safe-area-inset-top) + 14px) 16px 12px 16px;
  display:flex;align-items:center;gap:10px;border-bottom:1px solid rgba(255,255,255,.06)}
.hdr .brand{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.hdr img.logo{width:30px;height:30px;border-radius:8px;flex:none}
.hdr h1{font-size:1.15rem;margin:0;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chips{display:flex;gap:6px;flex:none}
.chip{background:var(--cover-deep);border:1px solid rgba(255,255,255,.10);color:var(--paper);
  border-radius:20px;padding:6px 10px;font-size:.78rem;display:flex;align-items:center;gap:5px;
  min-height:34px;cursor:pointer;font-weight:600}
.chip svg{width:16px;height:16px;stroke:var(--accent);fill:none;stroke-width:2}
.chip:active{transform:scale(.96)}

/* cards / paper */
.paper{background:var(--paper);color:var(--ink);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin:14px 0}
.paper h2{color:var(--accent-deep);font-size:1.02rem;margin:.1rem 0 .5rem}
.paper h3{color:var(--ink);font-size:.95rem;margin:1rem 0 .35rem}
.paper p{margin:.4rem 0;color:var(--ink);font-size:.93rem}
.muted{color:var(--ink-muted)}
.mono{font-family:var(--mono)}
.note-lang{background:var(--paper-alt);border-left:3px solid var(--accent);padding:8px 12px;border-radius:0 var(--radius) var(--radius) 0;font-size:.82rem;color:var(--ink-muted);margin:10px 0}

/* section title on cover */
.eyebrow{color:var(--accent);font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;font-weight:700;margin:18px 2px 2px}
.cover-h{font-size:1.5rem;margin:2px 2px 4px;font-weight:700;letter-spacing:-.02em}
.cover-sub{color:#B7C0D4;font-size:.9rem;margin:0 2px 6px}

/* ledger list */
.ledger{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin:12px 0}
.entry{display:flex;align-items:center;gap:12px;padding:14px 14px;border-bottom:1px solid var(--line-soft);cursor:pointer;color:var(--ink);background:
  repeating-linear-gradient(transparent,transparent 33px,var(--line-soft) 33px,var(--line-soft) 34px)}
.entry:last-child{border-bottom:none}
.entry:active{background:var(--paper-alt)}
.entry .num{width:34px;height:34px;flex:none;border-radius:6px;background:var(--cover);color:#fff;
  font-family:var(--mono);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.entry .t{flex:1;min-width:0}
.entry .t .ti{font-weight:600;font-size:.95rem;line-height:1.2}
.entry .t .ts{font-size:.76rem;color:var(--ink-muted)}
.stamp{width:34px;height:34px;flex:none;border-radius:50%;border:2px solid var(--accent);
  display:flex;align-items:center;justify-content:center;color:var(--accent-deep);
  font-size:.6rem;font-weight:800;text-transform:uppercase;transform:rotate(-12deg);
  letter-spacing:.02em;text-align:center;line-height:1}
.stamp.empty{border:2px dashed var(--line);color:transparent}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;
  padding:10px 18px;border-radius:var(--radius);border:none;font-weight:700;font-size:.95rem;cursor:pointer;width:100%}
.btn.primary{background:var(--accent-deep);color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn.dark{background:var(--cover-deep);color:#fff}
.btn:active{transform:scale(.98)}
.btn.sm{min-height:38px;padding:6px 14px;width:auto;font-size:.85rem}

/* forms */
.field{margin:10px 0}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.field input,.field select{width:100%;min-height:46px;border:1px solid var(--line);border-radius:var(--radius);
  padding:8px 12px;font-size:1rem;font-family:var(--mono);color:var(--ink);background:#fff}
.field select{font-family:var(--sans)}
.field input:focus,.field select:focus{outline:2px solid var(--accent);border-color:var(--accent)}

/* results */
.result-box{background:var(--paper-alt);border-radius:var(--radius);padding:12px 14px;margin:12px 0}
.result-row{display:flex;justify-content:space-between;align-items:baseline;padding:7px 0;border-bottom:1px solid var(--line);gap:12px}
.result-row:last-child{border-bottom:none}
.result-row .lbl{color:var(--ink-muted);font-size:.85rem}
.result-row .val{font-family:var(--mono);font-weight:700;color:var(--ink);font-size:1.02rem;text-align:right}
.val.pos{color:var(--teal-deep)} .val.neg{color:var(--warn)}
.tag{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:12px}
.tag.ok{background:rgba(23,122,94,.12);color:var(--teal-deep)}
.tag.watch{background:rgba(27,110,130,.12);color:var(--accent-deep)}
.tag.risk{background:rgba(176,58,72,.12);color:var(--warn)}

/* tables */
.tbl-wrap{overflow-x:auto;margin:10px 0;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-family:var(--mono);font-size:.82rem}
th,td{padding:7px 8px;text-align:right;border-bottom:1px solid var(--line-soft);white-space:nowrap}
th{color:var(--ink-muted);font-weight:700;font-family:var(--sans);font-size:.74rem;text-transform:uppercase;letter-spacing:.03em}
th:first-child,td:first-child{text-align:left}
tr.neg td{color:var(--warn)}

/* quiz */
.quiz-q{margin:14px 0}
.quiz-q .q{font-weight:600;color:var(--ink);font-size:.92rem;margin-bottom:8px}
.opt{display:block;width:100%;text-align:left;border:1px solid var(--line);background:#fff;color:var(--ink);
  border-radius:var(--radius);padding:11px 12px;margin:6px 0;cursor:pointer;font-size:.9rem;min-height:44px}
.opt:active{transform:scale(.99)}
.opt.correct{background:rgba(23,122,94,.14);border-color:var(--teal-deep);color:var(--teal-deep);font-weight:700}
.opt.wrong{background:rgba(176,58,72,.12);border-color:var(--warn);color:var(--warn)}
.opt:disabled{cursor:default;opacity:1}

/* exercise reveal */
.ex{border:1px solid var(--line-soft);border-radius:var(--radius);padding:12px;margin:8px 0}
.ex .q{font-weight:600;font-size:.9rem;color:var(--ink)}
.ex .a{margin-top:8px;color:var(--teal-deep);font-size:.88rem;display:none}
.ex.open .a{display:block}

/* bars (budget/risk) */
.bar{height:12px;border-radius:6px;background:var(--line-soft);overflow:hidden;margin-top:4px}
.bar > i{display:block;height:100%;background:var(--accent);border-radius:6px}
.gauge{height:14px;border-radius:7px;overflow:hidden;background:var(--line-soft);margin:8px 0}
.gauge > i{display:block;height:100%}

/* tab bar */
.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:30;background:var(--cover-deep);
  border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:center;
  padding-bottom:env(safe-area-inset-bottom)}
.tabbar .inner{max-width:520px;width:100%;display:flex}
.tab{flex:1;background:none;border:none;color:#8892A8;padding:10px 4px 8px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;min-height:56px}
.tab svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2}
.tab span{font-size:.7rem;font-weight:600}
.tab.active{color:var(--accent)}

/* onboarding / sheets */
.overlay{position:fixed;inset:0;z-index:50;background:var(--cover);display:flex;flex-direction:column;
  padding:calc(env(safe-area-inset-top) + 20px) 20px calc(env(safe-area-inset-bottom) + 20px)}
.overlay.sheet{background:rgba(14,18,38,.72);justify-content:flex-end}
.sheet-card{background:var(--paper);color:var(--ink);border-radius:14px 14px 0 0;padding:22px 20px calc(env(safe-area-inset-bottom) + 24px);max-height:86vh;overflow:auto}
.ob{flex:1;display:flex;flex-direction:column;justify-content:center;text-align:center;max-width:420px;margin:0 auto;width:100%}
.ob img{width:88px;height:88px;border-radius:20px;margin:0 auto 22px}
.ob .eyebrow{color:var(--accent);text-align:center}
.ob h2{font-size:1.7rem;margin:6px 0 12px;font-weight:700}
.ob p{color:#C3CCE0;font-size:1.02rem}
.dots{display:flex;gap:8px;justify-content:center;margin:22px 0}
.dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.25)}
.dots i.on{background:var(--accent);width:22px;border-radius:4px}
.ob-nav{display:flex;gap:10px;max-width:420px;margin:0 auto;width:100%}

/* consent banner */
.consent{position:fixed;left:8px;right:8px;bottom:calc(70px + env(safe-area-inset-bottom));z-index:40;
  background:var(--paper);color:var(--ink);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;max-width:504px;margin:0 auto}
.consent p{font-size:.84rem;margin:0 0 10px}
.consent .row{display:flex;gap:8px}

/* ad slot */
.adslot{background:var(--paper-alt);border:1px dashed var(--line);border-radius:var(--radius);
  padding:14px;text-align:center;color:var(--ink-muted);font-size:.78rem;margin:14px 0}

/* back link */
.backrow{display:flex;align-items:center;gap:8px;padding:6px 2px 0}
.backbtn{background:none;border:none;color:var(--accent);font-weight:700;font-size:.9rem;cursor:pointer;display:flex;align-items:center;gap:4px;min-height:40px}
.backbtn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}

/* RTL */
[dir="rtl"] .entry .t,[dir="rtl"] .result-row .lbl{text-align:right}
[dir="rtl"] th:first-child,[dir="rtl"] td:first-child{text-align:right}
[dir="rtl"] th,[dir="rtl"] td{text-align:left}
[dir="rtl"] .note-lang{border-left:none;border-right:3px solid var(--accent);border-radius:var(--radius) 0 0 var(--radius)}
[dir="rtl"] .backbtn svg{transform:scaleX(-1)}

.picker-item{display:flex;justify-content:space-between;align-items:center;padding:13px 4px;border-bottom:1px solid var(--line-soft);cursor:pointer;font-size:1rem;min-height:48px}
.picker-item:active{background:var(--paper-alt)}
.picker-item.sel{color:var(--accent-deep);font-weight:700}