/* ============================================================
   CALCUTY — design system
   Concept: precision financial instruments. A ledger crossed
   with a drafting tool. Tick-mark rulers are the signature
   motif — they show up as dividers, slider tracks, and the
   gauge that reads out every result.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink:        #16233F;
  --ink-soft:   #2B3B5E;
  --ink-faint:  #5C6C8C;
  --paper:      #EEF1EC;
  --paper-dim:  #E2E7E0;
  --card:       #FFFFFF;
  --brass:      #C89A52;
  --brass-dim:  #8C6E39;
  --teal:       #2F7B6F;
  --teal-dim:   #1F5A51;
  --rust:       #B14B3A;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 3px;
  --max: 1080px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

a{color:inherit;}
h1,h2,h3,h4{font-family:var(--font-display); font-weight:600; margin:0 0 .4em; letter-spacing:-.01em;}
p{margin:0 0 1em;}
.eyebrow{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--brass-dim); font-weight:600; display:flex; align-items:center; gap:8px;
}
.eyebrow::before{content:""; width:16px; height:1px; background:var(--brass-dim); display:inline-block;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 28px;}
img,svg{display:block; max-width:100%;}
button{font-family:inherit;}

:focus-visible{outline:2px solid var(--brass); outline-offset:2px;}

/* ---------- ruler tick divider (signature element) ---------- */
.ruler{
  height:22px; width:100%;
  background-image: repeating-linear-gradient(
    to right,
    currentColor 0, currentColor 1px,
    transparent 1px, transparent 24px
  );
  background-position: bottom left;
  background-repeat: repeat-x;
  background-size: auto 10px;
  opacity:.35;
}
.ruler.big{
  background-size: auto 16px;
}
.ruler.on-ink{color:#B9C4DA;}
.ruler.on-paper{color:var(--ink-faint);}

/* ---------- top nav ---------- */
.site-header{
  background:var(--ink); color:#fff; padding:18px 0;
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .wrap{display:flex; align-items:center; justify-content:space-between; gap:24px;}
.wordmark{
  font-family:var(--font-display); font-weight:600; font-size:22px; letter-spacing:-.01em;
  text-decoration:none; color:#fff; display:flex; align-items:baseline; gap:2px;
}
.wordmark .dot{color:var(--brass);}
.site-nav{display:flex; gap:28px; list-style:none; margin:0; padding:0;}
.site-nav a{
  text-decoration:none; font-size:14px; font-weight:500; color:#C6CEE0;
  padding:6px 0; border-bottom:1px solid transparent; transition:color .15s, border-color .15s;
}
.site-nav a:hover, .site-nav a.active{color:#fff; border-color:var(--brass);}
.nav-toggle{display:none;}

@media (max-width:760px){
  .site-nav{
    position:fixed; inset:64px 0 auto 0; background:var(--ink); flex-direction:column; gap:0;
    padding:8px 28px 20px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .2s, transform .2s; border-bottom:1px solid rgba(255,255,255,.08);
  }
  .site-nav.open{opacity:1; transform:translateY(0); pointer-events:auto;}
  .site-nav a{padding:12px 0; border-bottom:1px solid rgba(255,255,255,.08); width:100%;}
  .nav-toggle{
    display:block; background:none; border:1px solid rgba(255,255,255,.3); color:#fff;
    border-radius:var(--radius); padding:8px 12px; font-size:13px; cursor:pointer;
  }
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink); color:#B9C4DA; padding:40px 0 28px;}
.site-footer .wrap{display:flex; flex-wrap:wrap; justify-content:space-between; gap:24px; align-items:flex-start;}
.site-footer a{color:#DDE3EF; text-decoration:none; font-size:14px;}
.site-footer a:hover{color:var(--brass);}
.footer-links{display:flex; gap:20px; list-style:none; padding:0; margin:0; flex-wrap:wrap;}
.footer-note{font-size:12.5px; color:#8493B5; max-width:520px; line-height:1.6; margin-top:14px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; font-weight:600; font-size:14.5px;
  padding:13px 22px; border-radius:var(--radius); text-decoration:none; cursor:pointer;
  border:1px solid transparent; transition:transform .12s ease, background .15s;
}
.btn:active{transform:translateY(1px);}
.btn-brass{background:var(--brass); color:var(--ink);}
.btn-brass:hover{background:#D8AC64;}
.btn-outline{border-color:rgba(255,255,255,.35); color:#fff;}
.btn-outline:hover{border-color:#fff;}
.btn-ink{background:var(--ink); color:#fff;}
.btn-ink:hover{background:var(--ink-soft);}

/* ---------- hero ---------- */
.hero{background:var(--ink); color:#fff; padding:64px 0 0;}
.hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center; padding-bottom:56px;}
.hero h1{font-size:clamp(34px,4.6vw,54px); line-height:1.05; color:#fff; max-width:12ch;}
.hero .lede{font-size:17.5px; color:#C6CEE0; max-width:46ch;}
.hero-actions{display:flex; gap:14px; margin-top:26px; flex-wrap:wrap;}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;} }

/* mini live widget in hero */
.gauge-card{
  background:#101B32; border:1px solid rgba(255,255,255,.08); border-radius:6px;
  padding:26px 26px 20px;
}
.gauge-card .eyebrow{color:#8FA1C7;}
.gauge-card .eyebrow::before{background:#8FA1C7;}
.mini-row{display:flex; justify-content:space-between; align-items:center; gap:12px; margin:14px 0;}
.mini-row label{font-size:13px; color:#B9C4DA;}
.mini-row input[type=range]{flex:1; margin:0 12px;}
.mini-row .val{font-family:var(--font-mono); font-size:13.5px; color:#fff; min-width:74px; text-align:right;}
.gauge-result{
  margin-top:18px; padding-top:18px; border-top:1px dashed rgba(255,255,255,.18);
  display:flex; justify-content:space-between; align-items:baseline;
}
.gauge-result .num{font-family:var(--font-display); font-size:36px; color:var(--brass); font-weight:600;}
.gauge-result .label{font-size:12.5px; color:#8FA1C7; text-transform:uppercase; letter-spacing:.08em; font-family:var(--font-mono);}

/* ---------- instrument cards (landing) ---------- */
.section{padding:64px 0;}
.section-head{max-width:640px; margin-bottom:36px;}
.instrument-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:22px;}
@media (max-width:860px){.instrument-grid{grid-template-columns:1fr;}}
.instrument{
  background:var(--card); border:1px solid var(--paper-dim); border-radius:6px; padding:28px;
  text-decoration:none; color:var(--ink); display:flex; flex-direction:column; gap:14px;
  transition:border-color .15s, transform .15s;
}
.instrument:hover{border-color:var(--brass); transform:translateY(-2px);}
.instrument .dial{width:52px; height:52px;}
.instrument h3{font-size:21px; margin-bottom:2px;}
.instrument p{font-size:14.5px; color:var(--ink-faint); margin-bottom:0;}
.instrument .go{font-family:var(--font-mono); font-size:12.5px; color:var(--teal-dim); font-weight:600;}

/* ---------- trust bar ---------- */
.trust-bar{background:var(--card); border-top:1px solid var(--paper-dim); border-bottom:1px solid var(--paper-dim);}
.trust-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; padding:36px 0;}
@media (max-width:760px){.trust-grid{grid-template-columns:1fr;}}
.trust-item{display:flex; gap:14px;}
.trust-item .num{font-family:var(--font-mono); color:var(--brass-dim); font-weight:600;}
.trust-item h4{font-size:15.5px; margin-bottom:4px;}
.trust-item p{font-size:13.5px; color:var(--ink-faint); margin:0;}

/* ============================================================
   CALCULATOR PAGE LAYOUT
   ============================================================ */
.calc-hero{background:var(--ink); color:#fff; padding:38px 0 30px;}
.breadcrumb{font-family:var(--font-mono); font-size:12.5px; color:#8FA1C7; margin-bottom:10px;}
.breadcrumb a{color:#8FA1C7; text-decoration:none;}
.breadcrumb a:hover{color:#fff;}
.calc-hero h1{color:#fff; font-size:clamp(28px,3.6vw,38px); max-width:20ch;}
.calc-hero .lede{color:#C6CEE0; max-width:56ch; font-size:16px;}

.calc-body{padding:44px 0 20px;}
.calc-grid{display:grid; grid-template-columns:1fr 400px; gap:30px; align-items:flex-start;}
@media (max-width:960px){.calc-grid{grid-template-columns:1fr;}}

.panel{
  background:var(--card); border:1px solid var(--paper-dim); border-radius:6px; padding:30px;
}
.panel + .panel{margin-top:22px;}
.panel h2{font-size:19px; margin-bottom:18px; display:flex; align-items:center; gap:10px;}
.panel h2 .n{
  font-family:var(--font-mono); font-size:12px; color:var(--brass-dim); border:1px solid var(--brass);
  border-radius:50%; width:22px; height:22px; display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}

.field{margin-bottom:22px;}
.field:last-child{margin-bottom:0;}
.field-top{display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-bottom:8px;}
.field label{font-size:14px; font-weight:600; display:flex; align-items:center; gap:6px;}
.field .field-val{
  font-family:var(--font-mono); font-size:14.5px; font-weight:600; color:var(--teal-dim);
  background:var(--paper); border:1px solid var(--paper-dim); border-radius:var(--radius);
  padding:4px 9px; min-width:64px; text-align:right;
}
.field .field-val input{
  border:none; background:none; font-family:var(--font-mono); font-size:14.5px; font-weight:600;
  color:var(--teal-dim); width:100%; text-align:right; outline:none;
}

/* tick-mark slider, matches the ruler motif */
input[type=range]{
  -webkit-appearance:none; appearance:none; width:100%; height:26px; background:transparent; cursor:pointer;
}
input[type=range]::-webkit-slider-runnable-track{
  height:6px; border-radius:3px; background:
    repeating-linear-gradient(to right, var(--ink-faint) 0 1px, transparent 1px 12px),
    var(--paper-dim);
  background-position: center;
  background-repeat: no-repeat, repeat;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; margin-top:-8px; width:20px; height:20px; border-radius:50%;
  background:var(--brass); border:3px solid var(--ink); cursor:pointer;
}
input[type=range]::-moz-range-track{height:6px; border-radius:3px; background:var(--paper-dim);}
input[type=range]::-moz-range-thumb{width:20px; height:20px; border-radius:50%; background:var(--brass); border:3px solid var(--ink); cursor:pointer;}

.select-row{display:flex; gap:10px;}
select, .text-input{
  font-family:var(--font-body); font-size:14.5px; padding:10px 12px; border-radius:var(--radius);
  border:1px solid var(--paper-dim); background:var(--paper); color:var(--ink); width:100%;
}

.field-help{font-size:12.5px; color:var(--ink-faint); margin-top:6px;}
.tip{
  position:relative; display:inline-flex; align-items:center; justify-content:center;
  width:15px; height:15px; border-radius:50%; border:1px solid var(--ink-faint); color:var(--ink-faint);
  font-family:var(--font-mono); font-size:10px; cursor:help;
}
.tip .tip-bubble{
  display:none; position:absolute; bottom:130%; left:50%; transform:translateX(-50%);
  background:var(--ink); color:#fff; font-family:var(--font-body); font-weight:400; font-size:12.5px;
  padding:10px 12px; border-radius:4px; width:220px; line-height:1.45; z-index:10; text-align:left;
}
.tip:hover .tip-bubble, .tip:focus .tip-bubble{display:block;}
.tip:hover, .tip:focus{background:var(--ink); color:#fff;}

.check-row{display:flex; align-items:center; gap:8px; font-size:14px; font-weight:500;}

/* ---------- results (sticky) ---------- */
.results{position:sticky; top:96px;}
.result-card{background:var(--ink); color:#fff; border-radius:6px; padding:28px; overflow:hidden;}
.result-card .eyebrow{color:#8FA1C7;}
.result-card .eyebrow::before{background:#8FA1C7;}
.result-hero{display:flex; align-items:flex-end; gap:14px; margin:14px 0 6px;}
.result-hero .num{font-family:var(--font-display); font-size:40px; font-weight:600; color:var(--brass);}
.result-hero .per{font-family:var(--font-mono); font-size:13px; color:#8FA1C7; padding-bottom:8px;}

.gauge-wrap{display:flex; justify-content:center; margin:14px 0 4px;}

.breakdown{margin-top:18px; display:flex; flex-direction:column; gap:10px;}
.breakdown-row{display:flex; align-items:center; gap:10px; font-size:13px;}
.breakdown-row .swatch{width:10px; height:10px; border-radius:2px; flex-shrink:0;}
.breakdown-row .name{flex:1; color:#C6CEE0;}
.breakdown-row .amt{font-family:var(--font-mono); color:#fff;}
.breakdown-bar{height:8px; border-radius:4px; background:#243559; overflow:hidden; display:flex; margin-top:4px;}
.breakdown-bar span{height:100%;}

.result-foot{margin-top:20px; padding-top:16px; border-top:1px dashed rgba(255,255,255,.18); font-size:12.5px; color:#8FA1C7; line-height:1.6;}

.chart-panel{margin-top:22px;}
.chart-panel canvas{max-height:260px;}
.chart-legend{display:flex; gap:18px; margin-top:10px; flex-wrap:wrap; font-size:12.5px; color:var(--ink-faint);}
.chart-legend span{display:inline-flex; align-items:center; gap:6px;}
.chart-legend i{width:10px; height:10px; border-radius:2px; display:inline-block;}

/* schedule table */
.table-toggle{display:flex; gap:10px; margin-bottom:14px;}
.table-toggle button{
  font-family:var(--font-mono); font-size:12.5px; padding:8px 14px; border-radius:var(--radius);
  border:1px solid var(--paper-dim); background:var(--paper); cursor:pointer; color:var(--ink);
}
.table-toggle button.active{background:var(--ink); color:#fff; border-color:var(--ink);}
.sched-table{width:100%; border-collapse:collapse; font-size:13.5px;}
.sched-table th{
  text-align:right; font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em;
  color:var(--ink-faint); padding:8px 10px; border-bottom:1px solid var(--paper-dim);
}
.sched-table th:first-child, .sched-table td:first-child{text-align:left;}
.sched-table td{text-align:right; padding:8px 10px; border-bottom:1px solid var(--paper-dim); font-family:var(--font-mono); font-size:13px;}
.sched-scroll{max-height:420px; overflow-y:auto; border:1px solid var(--paper-dim); border-radius:4px;}
.sched-scroll thead th{position:sticky; top:0; background:var(--card);}

/* ---------- article / education content ---------- */
.article{max-width:760px;}
.article h2{font-size:24px; margin-top:40px;}
.article h3{font-size:18px; margin-top:26px;}
.article p{color:var(--ink-soft); font-size:15.5px;}
.article ul{color:var(--ink-soft); font-size:15.5px; padding-left:20px;}
.article li{margin-bottom:6px;}

.faq{border-top:1px solid var(--paper-dim);}
.faq-item{border-bottom:1px solid var(--paper-dim);}
.faq-item summary{
  padding:18px 4px; cursor:pointer; font-weight:600; font-size:15.5px; list-style:none;
  display:flex; justify-content:space-between; align-items:center; gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+"; font-family:var(--font-mono); color:var(--brass-dim); font-size:18px;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{padding:0 4px 18px; color:var(--ink-soft); font-size:14.5px;}

.related{display:flex; gap:14px; flex-wrap:wrap;}
.related a{
  border:1px solid var(--paper-dim); border-radius:var(--radius); padding:10px 16px; text-decoration:none;
  font-size:13.5px; font-weight:600; color:var(--ink); background:var(--card);
}
.related a:hover{border-color:var(--brass);}

.disclaimer{
  font-size:12.5px; color:var(--ink-faint); background:var(--paper-dim); border-radius:4px; padding:14px 16px;
  line-height:1.6; margin-top:26px;
}