/* Shared site chrome: background, header/menu, breadcrumbs, footer. Page-specific styles stay in each page. */

body{
  background:
    radial-gradient(900px 420px at 50% -140px, rgba(201,162,39,0.11), rgba(201,162,39,0) 70%),
    var(--bg);
}
body::before{
  content:"";
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:linear-gradient(to bottom, #000, transparent 65%);
  mask-image:linear-gradient(to bottom, #000, transparent 65%);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(20,23,26,0.88);
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header-inner{
  max-width:1080px; margin:0 auto; padding:0 20px;
  height:60px; display:flex; align-items:center; gap:22px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:'Source Serif 4', serif; font-weight:700; font-size:18px;
  color:var(--ink); text-decoration:none; letter-spacing:0.01em; flex-shrink:0;
}
.brand-mark{
  width:28px; height:28px; border-radius:6px;
  background:#c9a227; color:#14171a;
  display:grid; place-items:center;
}
.brand-mark svg{ width:17px; height:17px; }

.main-nav{ display:flex; align-items:center; gap:2px; flex:1; }
.nav-item{ position:relative; }
.nav-trigger, .nav-link{
  font-family:'Inter', sans-serif; font-size:14px; font-weight:500;
  color:var(--ink-dim); background:none; border:0;
  padding:8px 12px; border-radius:6px; cursor:pointer; text-decoration:none;
  display:flex; align-items:center; gap:7px; line-height:1.2;
}
.nav-trigger::after{
  content:''; width:5px; height:5px;
  border-right:1.5px solid currentColor; border-bottom:1.5px solid currentColor;
  transform:rotate(45deg); margin-top:-3px; opacity:0.7;
}
.nav-item:hover .nav-trigger, .nav-item:focus-within .nav-trigger, .nav-item.open .nav-trigger, .nav-link:hover{
  color:var(--ink); background:rgba(255,255,255,0.05);
}
.nav-trigger.current, .nav-link.current{ color:var(--gold); }
.nav-spacer{ flex:1; }
.nav-cta{
  font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--gold);
  border:1px solid rgba(201,162,39,0.5); border-radius:6px; padding:7px 12px; text-decoration:none;
}
.nav-cta:hover{ background:rgba(201,162,39,0.1); }

.nav-panel{
  display:none; position:absolute; top:100%; left:0; z-index:110;
  width:max-content; min-width:320px; max-width:min(92vw, 380px);
  background:var(--bg-raised); border:1px solid var(--line); border-radius:8px;
  box-shadow:0 14px 34px rgba(0,0,0,0.5); padding:8px;
}
.nav-item:hover .nav-panel, .nav-item:focus-within .nav-panel, .nav-item.open .nav-panel{ display:block; }
.nav-panel a{
  display:block; text-decoration:none; padding:9px 12px; border-radius:6px;
}
.nav-panel a:hover, .nav-panel a:focus{ background:rgba(255,255,255,0.05); outline:none; }
.np-title{ display:block; font-size:14px; font-weight:500; color:var(--ink); }
.np-desc{ display:block; font-size:12.5px; color:var(--ink-dim); margin-top:2px; line-height:1.4; }
.nav-panel a:hover .np-title, .nav-panel a.active .np-title{ color:var(--gold); }
.nav-panel a.active{ background:rgba(201,162,39,0.08); }

.nav-toggle{
  display:none; margin-left:auto; background:none; border:1px solid var(--line);
  color:var(--ink); border-radius:6px; width:38px; height:34px; cursor:pointer; padding:0;
  align-items:center; justify-content:center;
}
.nav-toggle svg{ width:18px; height:18px; }

@media (max-width: 1100px){
  .nav-toggle{ display:flex; }
  .main-nav{
    display:none; position:absolute; top:60px; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0;
    background:var(--bg); border-bottom:1px solid var(--line);
    padding:8px 16px 16px; max-height:calc(100vh - 60px); overflow-y:auto;
  }
  .main-nav.open{ display:flex; }
  .nav-trigger{
    width:100%; cursor:default; padding:14px 4px 6px; border-radius:0; background:none !important;
    font-family:'IBM Plex Mono', monospace; font-size:11.5px; text-transform:uppercase; letter-spacing:0.08em;
    color:var(--ink-dim) !important; pointer-events:none;
  }
  .nav-trigger::after{ display:none; }
  .nav-trigger.current{ color:var(--gold) !important; }
  .nav-panel{
    display:block; position:static; width:auto; min-width:0; max-width:none;
    background:none; border:0; box-shadow:none; padding:0 0 4px;
  }
  .nav-panel a{ padding:9px 4px; }
  .np-desc{ display:none; }
  .nav-spacer{ display:none; }
  .nav-link{ padding:12px 4px; }
  .nav-cta{ margin-top:8px; text-align:center; }
}

/* ---------- Breadcrumbs ---------- */
.crumbs{
  font-family:'IBM Plex Mono', monospace; font-size:12px; color:var(--ink-dim);
  margin:2px 0 16px; display:flex; flex-wrap:wrap; gap:6px; align-items:center;
}
.crumbs a{ color:var(--ink-dim); text-decoration:none; }
.crumbs a:hover{ color:var(--gold); }
.crumbs .sep{ opacity:0.5; }
.crumbs .here{ color:var(--ink); }

/* ---------- Footer ---------- */
.site-footer{
  text-align:left; font-size:14px;
  margin-top:64px; border-top:1px solid var(--line);
  background:rgba(0,0,0,0.18); padding:44px 20px 28px;
}
.footer-inner{
  max-width:1080px; margin:0 auto;
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;
}
.footer-brand p{ font-size:13px; color:var(--ink-dim); line-height:1.6; margin:12px 0 0; max-width:34ch; }
.footer-col h3{
  font-family:'IBM Plex Mono', monospace; font-size:11.5px; font-weight:500;
  color:var(--ink-dim); text-transform:uppercase; letter-spacing:0.08em; margin:0 0 12px;
}
.footer-col a{ display:block; font-size:13.5px; color:var(--ink); text-decoration:none; padding:4px 0; opacity:0.85; }
.footer-col a:hover{ color:var(--gold); opacity:1; }
.footer-bottom{
  max-width:1080px; margin:32px auto 0; padding-top:18px; border-top:1px solid var(--line);
  font-size:12px; color:var(--ink-dim); display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px 20px;
}
.footer-bottom a{ color:var(--ink-dim); }
.footer-bottom a:hover{ color:var(--gold); }
@media (max-width: 820px){
  .footer-inner{ grid-template-columns:1fr 1fr; }
  .footer-brand{ grid-column:1 / -1; }
}
@media (max-width: 480px){
  .footer-inner{ grid-template-columns:1fr; }
}

@media print{
  .site-header, .site-footer, .crumbs, body::before{ display:none !important; }
}

/* ================= Category theming =================
   Each calculator page gets body.cat-*, which re-points the accent used across the page. */
body{ --acc-rgb: 201,162,39; }
body.cat-tax{ --gold:#c9a227; --acc-rgb:201,162,39; }
body.cat-trading{ --gold:#4fb3a9; --acc-rgb:79,179,169; }
body.cat-returns{ --gold:#7c9cf5; --acc-rgb:124,156,245; }
body.cat-options{ --gold:#d9825f; --acc-rgb:217,130,95; }
body.cat-filing{ --gold:#b78fd9; --acc-rgb:183,143,217; }
body.cat-gains{ --gold:#e58aa0; --acc-rgb:229,138,160; }
body.cat-planning{ --gold:#8fbf6a; --acc-rgb:143,191,106; }

/* ================= Page banner (title area of each calculator) ================= */
.wrap > header{
  position:relative; overflow:hidden;
  margin-bottom:22px; padding:26px 24px;
  border:1px solid var(--line); border-radius:14px;
  background:
    radial-gradient(520px 220px at 100% 0%, rgba(var(--acc-rgb),0.16), rgba(var(--acc-rgb),0) 70%),
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0)),
    var(--bg-raised);
}
.wrap > header > *:not(.banner-art){ position:relative; z-index:1; }
.wrap > header h1{ font-size:clamp(25px, 4.2vw, 33px); line-height:1.15; max-width:22ch; }
.wrap > header p{ max-width:52ch; margin-bottom:0; }
.banner-art{
  position:absolute; top:0; right:0; bottom:0; width:min(52%, 360px);
  color:var(--gold); opacity:0.9; pointer-events:none; z-index:0;
  -webkit-mask-image:linear-gradient(to right, transparent, #000 45%);
  mask-image:linear-gradient(to right, transparent, #000 45%);
}
.banner-art svg{ width:100%; height:100%; display:block; }
@media (max-width: 640px){
  .banner-art{ width:70%; opacity:0.45; }
  .wrap > header{ padding:22px 18px; }
}
.banner-art .draw{ stroke-dasharray:520; stroke-dashoffset:520; animation:tm-draw 1.8s 0.15s ease forwards; }
@keyframes tm-draw{ to{ stroke-dashoffset:0; } }

/* ================= Richer cards, hero results, form controls ================= */
.card{
  border-radius:12px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.028), rgba(255,255,255,0) 60%),
    var(--bg-raised);
  box-shadow:0 1px 0 rgba(255,255,255,0.04) inset, 0 10px 28px rgba(0,0,0,0.22);
  animation:tm-rise 0.55s ease both;
}
.wrap > .card:nth-of-type(2){ animation-delay:0.05s; }
.wrap > .card:nth-of-type(3){ animation-delay:0.1s; }
.wrap > .card:nth-of-type(4){ animation-delay:0.15s; }
@keyframes tm-rise{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:none; } }

.ledger-title::before{
  content:''; display:inline-block; width:7px; height:7px; border-radius:2px;
  background:var(--gold); margin-right:9px; vertical-align:1px;
  box-shadow:0 0 10px rgba(var(--acc-rgb),0.6);
}
.section-title{ position:relative; padding-bottom:10px; }
.section-title::after{
  content:''; position:absolute; left:0; bottom:0; width:38px; height:2px; border-radius:2px;
  background:linear-gradient(90deg, var(--gold), rgba(var(--acc-rgb),0));
}

.card .hero{
  border-radius:12px;
  background:
    radial-gradient(360px 140px at 50% 0%, rgba(var(--acc-rgb),0.16), rgba(var(--acc-rgb),0) 75%),
    var(--bg);
  border-color:rgba(var(--acc-rgb),0.55);
  box-shadow:0 0 0 1px rgba(var(--acc-rgb),0.08), 0 12px 34px rgba(var(--acc-rgb),0.08);
}
.card .hero .value{ text-shadow:0 0 28px rgba(var(--acc-rgb),0.35); letter-spacing:-0.01em; }

input[type="number"], input[type="date"], input[type="text"], select, textarea{ border-radius:8px; transition:border-color .15s, box-shadow .15s; }
input:focus, select:focus, textarea:focus{ box-shadow:0 0 0 3px rgba(var(--acc-rgb),0.18); }
.segbtn{ border-radius:8px; transition:border-color .15s, color .15s, background .15s; }
.segbtn.active{ background:rgba(var(--acc-rgb),0.1); }
.segbtn:hover{ border-color:rgba(var(--acc-rgb),0.6); }
.note-box{ border-radius:0 8px 8px 0; }
details.faq summary{ transition:color .15s; }
details.faq summary:hover{ color:var(--gold); }
.dir-item{ border-radius:8px; transition:background .15s; }
.dir-item:hover{ background:rgba(255,255,255,0.03); }
.related-tools .dir-title::before{ content:''; display:inline-block; width:6px; height:6px; margin-right:9px; border-radius:50%; background:var(--gold); vertical-align:1px; }

/* ================= Live charts (drawn by site.js) ================= */
.viz{ margin:16px 0 4px; }
.viz svg{ width:100%; height:auto; display:block; overflow:visible; }
.viz text{ font-family:'IBM Plex Mono', monospace; font-size:11px; fill:var(--ink-dim); }
.viz .lbl-strong{ fill:var(--ink); }
.viz .legend{ display:flex; flex-wrap:wrap; gap:6px 16px; font-size:12px; color:var(--ink-dim); margin-top:8px; }
.viz .legend i{ display:inline-block; width:10px; height:10px; border-radius:3px; margin-right:6px; vertical-align:-1px; }
.viz-title{ font-family:'IBM Plex Mono', monospace; font-size:11.5px; text-transform:uppercase; letter-spacing:0.06em; color:var(--ink-dim); margin:0 0 8px; }

@media (prefers-reduced-motion: reduce){
  .card, .banner-art .draw{ animation:none !important; }
  .banner-art .draw{ stroke-dashoffset:0; }
}
@media print{ .banner-art{ display:none !important; } }

input[type="checkbox"]{ accent-color:var(--gold); color-scheme:dark; width:16px; height:16px; }

@media (min-width: 1101px) and (max-width: 1240px){ .nav-cta{ display:none; } }