/* ===========================================================
   Clearcut Calculators — shared design system
   Ledger/receipt visual language. See /calculators/income-tax
   for the reference implementation of every component below.
   =========================================================== */

:root{
  --bg:#F5F6F1;
  --surface:#FFFFFF;
  --surface-2:#ECEEE5;
  --ink:#16211C;
  --ink-soft:#57624F;
  --ink-faint:#8B9483;
  --border:#D7DBCC;
  --border-strong:#B9C0AC;
  --emerald:#1F6F54;
  --emerald-deep:#11362A;
  --emerald-text:#E9F3EC;
  --brass:#9A6F2A;
  --brass-soft:#EFE2C4;
  --shadow: 0 1px 2px rgba(22,33,28,0.06), 0 8px 24px rgba(22,33,28,0.05);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F130E; --surface:#171D14; --surface-2:#1D2418;
    --ink:#E8ECE0; --ink-soft:#A6AF98; --ink-faint:#71785F;
    --border:#2A3223; --border-strong:#3B4630;
    --emerald:#4EAE86; --emerald-deep:#0F2B20; --emerald-text:#EAF6EF;
    --brass:#D2A75A; --brass-soft:#332812;
    --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 12px 32px rgba(0,0,0,0.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F130E; --surface:#171D14; --surface-2:#1D2418;
  --ink:#E8ECE0; --ink-soft:#A6AF98; --ink-faint:#71785F;
  --border:#2A3223; --border-strong:#3B4630;
  --emerald:#4EAE86; --emerald-deep:#0F2B20; --emerald-text:#EAF6EF;
  --brass:#D2A75A; --brass-soft:#332812;
  --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 12px 32px rgba(0,0,0,0.35);
  color-scheme: dark;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  background:var(--bg); color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  line-height:1.5; -webkit-font-smoothing:antialiased;
}
::selection{ background:var(--brass-soft); color:var(--ink); }
a{ color:var(--emerald); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible{
  outline:2px solid var(--emerald); outline-offset:2px;
}
.tabular{ font-family:'IBM Plex Mono', ui-monospace, monospace; font-variant-numeric: tabular-nums; }

/* ---------- top bar ---------- */
.topbar{ border-bottom:1px solid var(--border); background:var(--surface); }
.topbar-inner{
  max-width:1080px; margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
}
.wordmark{
  font-family:'IBM Plex Mono'; font-weight:600; font-size:13px; letter-spacing:0.06em;
  text-transform:uppercase; color:var(--ink); display:flex; align-items:center; gap:8px;
  text-decoration:none;
}
.wordmark .dot{ width:7px; height:7px; border-radius:50%; background:var(--brass); display:inline-block; }
.crumbs{ font-size:13px; color:var(--ink-faint); display:flex; gap:6px; align-items:center; }
.crumbs a{ color:var(--ink-faint); text-decoration:none; }
.crumbs a:hover{ color:var(--emerald); }
.crumbs span.sep{ color:var(--border-strong); }
.crumbs .current{ color:var(--ink-soft); }
.fy-pill{
  border:1px solid var(--border-strong); background:var(--surface-2); color:var(--ink-soft);
  font-family:'IBM Plex Mono'; font-size:12.5px; padding:5px 10px; border-radius:999px;
  display:flex; align-items:center; gap:6px;
}
.fy-pill select{
  border:none; background:transparent; color:var(--ink); font-family:'IBM Plex Mono';
  font-size:12.5px; font-weight:600; appearance:none; cursor:pointer;
}

/* ---------- hero ---------- */
.hero{ max-width:1080px; margin:0 auto; padding:44px 24px 8px; }
.hero h1{
  font-family:'Fraunces', serif; font-weight:500; font-style:italic;
  font-size:clamp(30px,4vw,42px); margin:0 0 10px; text-wrap:balance; letter-spacing:-0.01em;
}
.hero p{ margin:0; color:var(--ink-soft); max-width:52ch; font-size:15.5px; }

/* ---------- calculator grid (used on income-tax page) ---------- */
.sheet{
  max-width:1080px; margin:28px auto 0; padding:0 24px 64px;
  display:grid; grid-template-columns: 1.35fr auto 1fr; gap:0; align-items:start;
}
@media (max-width: 860px){ .sheet{ grid-template-columns: 1fr; } }
.perforation{ display:none; }
@media (min-width:861px){
  .perforation{
    display:block; align-self:stretch; width:1px; position:relative;
    background-image: repeating-linear-gradient(to bottom, var(--border-strong) 0 6px, transparent 6px 14px);
    margin: 0 22px;
  }
}
.form-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  box-shadow:var(--shadow); padding:28px 28px 22px;
}
.step{ margin-bottom:26px; }
.step:last-child{ margin-bottom:0; }
.step-label{
  font-family:'IBM Plex Mono'; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--brass); display:flex; align-items:center; gap:8px; margin-bottom:14px;
}
.step-label .n{
  width:20px; height:20px; border-radius:50%; border:1px solid var(--brass);
  display:inline-flex; align-items:center; justify-content:center; font-size:11px; color:var(--brass);
}
.field{ margin-bottom:16px; }
.field:last-child{ margin-bottom:0; }
.field label{ display:block; font-size:13px; color:var(--ink-soft); margin-bottom:7px; font-weight:500; }
.amount-input{
  display:flex; align-items:baseline; gap:6px; border:1px solid var(--border-strong);
  border-radius:8px; background:var(--surface-2); padding:12px 14px;
}
.amount-input .prefix{ color:var(--ink-faint); font-family:'IBM Plex Mono'; font-size:20px; }
.amount-input input[type="number"]{
  border:none; background:transparent; font-family:'IBM Plex Mono'; font-size:22px;
  font-weight:600; color:var(--ink); width:100%; outline:none;
}
.amount-input input[type="number"]::-webkit-outer-spin-button,
.amount-input input[type="number"]::-webkit-inner-spin-button{ -webkit-appearance:none; margin:0; }
.range-row{ margin-top:10px; }
input[type="range"]{ width:100%; accent-color:var(--emerald); height:4px; }
.range-ticks{
  display:flex; justify-content:space-between; font-size:11px; color:var(--ink-faint);
  font-family:'IBM Plex Mono'; margin-top:4px;
}
.seg{ display:flex; border:1px solid var(--border-strong); border-radius:8px; overflow:hidden; }
.seg button{
  flex:1; border:none; background:var(--surface-2); color:var(--ink-soft);
  font-family:'IBM Plex Sans'; font-size:13.5px; font-weight:500; padding:10px 8px;
  cursor:pointer; border-right:1px solid var(--border-strong);
}
.seg button:last-child{ border-right:none; }
.seg button[aria-pressed="true"]{ background:var(--emerald); color:var(--emerald-text); }
select.plain{
  width:100%; border:1px solid var(--border-strong); border-radius:8px; background:var(--surface-2);
  color:var(--ink); font-family:'IBM Plex Sans'; font-size:13.5px; padding:10px 12px;
}
details.advanced{ border-top:1px solid var(--border); margin-top:22px; padding-top:16px; }
details.advanced summary{
  cursor:pointer; font-size:13.5px; color:var(--ink-soft); font-weight:500;
  display:flex; align-items:center; gap:6px; list-style:none;
}
details.advanced summary::-webkit-details-marker{ display:none; }
details.advanced summary .chev{ transition: transform 0.15s ease; color:var(--brass); display:inline-block; }
details.advanced[open] summary .chev{ transform:rotate(90deg); }
.advanced-grid{ display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:16px; }
@media (max-width:520px){ .advanced-grid{ grid-template-columns:1fr; } }

/* ---------- result card ---------- */
.result-wrap{ position:sticky; top:20px; }
.result-card{
  background:var(--emerald-deep); color:var(--emerald-text); border-radius:var(--radius);
  box-shadow:var(--shadow); overflow:hidden; border:1px solid var(--emerald-deep);
}
.result-top{ padding:26px 26px 18px; }
.result-eyebrow{
  font-family:'IBM Plex Mono'; font-size:11px; letter-spacing:0.09em; text-transform:uppercase;
  opacity:0.68; margin-bottom:6px;
}
.result-figure{
  font-family:'IBM Plex Mono'; font-weight:600; font-size:clamp(30px,3.6vw,40px);
  line-height:1.1; letter-spacing:-0.01em;
}
.result-sub{ font-size:12.5px; opacity:0.7; margin-top:6px; }
.receipt{ background:rgba(0,0,0,0.14); padding:18px 26px 22px; font-family:'IBM Plex Mono'; font-size:13px; }
.receipt-row{ display:flex; align-items:baseline; gap:8px; padding:6px 0; }
.receipt-row .label{ opacity:0.75; white-space:nowrap; }
.receipt-row .leader{ flex:1; border-bottom:1px dotted rgba(233,243,236,0.35); transform:translateY(-4px); }
.receipt-row .val{ white-space:nowrap; }
.receipt-row.total{
  border-top:1px solid rgba(233,243,236,0.25); margin-top:6px; padding-top:12px;
  font-weight:600; font-size:14px;
}
.disclaimer{ font-size:11.5px; color:var(--ink-faint); margin-top:14px; line-height:1.5; }

/* ---------- anchor nav ---------- */
.anchornav{
  max-width:1080px; margin:0 auto; padding:0 24px; display:flex; gap:22px;
  border-bottom:1px solid var(--border); overflow-x:auto;
}
.anchornav a{
  text-decoration:none; color:var(--ink-faint); font-size:13.5px; font-weight:500;
  padding:14px 2px; border-bottom:2px solid transparent; white-space:nowrap;
}
.anchornav a.active{ color:var(--ink); border-bottom-color:var(--brass); }

/* ---------- content sections ---------- */
.content{ max-width:760px; margin:0 auto; padding:48px 24px 80px; }
.content section{ margin-bottom:52px; }
.content h2{ font-family:'Fraunces', serif; font-weight:500; font-size:22px; margin:0 0 18px; }
.rates-table{ width:100%; border-collapse:collapse; font-size:13.5px; }
.rates-table th, .rates-table td{ text-align:left; padding:10px 12px; border-bottom:1px solid var(--border); }
.rates-table th{
  font-family:'IBM Plex Mono'; font-size:11px; text-transform:uppercase; letter-spacing:0.06em;
  color:var(--ink-faint); font-weight:600;
}
.rates-table td.amt{ font-family:'IBM Plex Mono'; }
.faq-item{ border-bottom:1px solid var(--border); }
.faq-item summary{
  cursor:pointer; padding:16px 0; font-weight:500; font-size:14.5px; list-style:none;
  display:flex; justify-content:space-between; gap:12px; align-items:center;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary .plus{ color:var(--brass); font-family:'IBM Plex Mono'; }
.faq-item[open] summary .plus{ transform:rotate(45deg); display:inline-block; }
.faq-item p{ margin:0 0 18px; color:var(--ink-soft); font-size:13.5px; max-width:62ch; }

/* ---------- homepage: calculator index cards ---------- */
.calc-grid{
  max-width:1080px; margin:0 auto; padding:8px 24px 80px;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:16px;
}
.calc-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:22px; text-decoration:none; color:var(--ink); box-shadow:var(--shadow);
  display:flex; flex-direction:column; gap:10px; position:relative; transition:transform .12s ease, border-color .12s ease;
}
.calc-card:hover{ border-color:var(--border-strong); transform:translateY(-2px); }
.calc-card.disabled{ opacity:0.55; pointer-events:none; }
.calc-card .tag{
  font-family:'IBM Plex Mono'; font-size:10.5px; letter-spacing:0.07em; text-transform:uppercase;
  color:var(--brass);
}
.calc-card h3{ margin:0; font-family:'Fraunces', serif; font-weight:500; font-size:19px; }
.calc-card p{ margin:0; font-size:13px; color:var(--ink-soft); }
.calc-card .soon{
  position:absolute; top:16px; right:16px; font-family:'IBM Plex Mono'; font-size:10px;
  letter-spacing:0.06em; text-transform:uppercase; color:var(--ink-faint);
  border:1px solid var(--border-strong); border-radius:999px; padding:3px 8px;
}

footer{ border-top:1px solid var(--border); padding:28px 24px 40px; }
.footer-inner{
  max-width:1080px; margin:0 auto; font-size:12px; color:var(--ink-faint);
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
}