/* Finance Calculator Hub — shared styles. One stylesheet for every calculator page. */
:root{
  --green:#4F46E5; --green-d:#3730A3; --ink:#1E1B4B; --grey:#6B7280;
  --line:#E0E7FF; --bg:#F5F7FF; --card:#ffffff; --gold:#C77D00;
  --interest:#4F46E5; --contrib:#A5B4FC; --principal:#0EA5E9;
  --radius:14px; --shadow:0 1px 3px rgba(30,27,75,.08),0 6px 24px rgba(30,27,75,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1060px;margin:0 auto;padding:0 18px}

/* header */
.site-head{background:var(--green);color:#fff}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{font-weight:800;color:#fff;font-size:18px;letter-spacing:-.2px}
.brand span{opacity:.7;font-weight:600}
.nav a{color:#eef2ff;margin-left:18px;font-size:14px;font-weight:600}

.breadcrumb{font-size:12.5px;color:var(--grey);padding:14px 0 0}
.breadcrumb a{color:var(--grey)}

h1{font-size:30px;line-height:1.15;margin:8px 0 6px;letter-spacing:-.5px}
.intro{color:var(--grey);max-width:760px;margin:0 0 18px;font-size:15px}

/* ad slots */
.ad{background:repeating-linear-gradient(45deg,#eef1fa,#eef1fa 10px,#e5e9f6 10px,#e5e9f6 20px);
  border:1px dashed #c5cbe8;border-radius:10px;color:#9aa3c0;font-size:11px;text-align:center;
  padding:10px;margin:14px 0;letter-spacing:.5px}
.ad.lb{min-height:90px;display:flex;align-items:center;justify-content:center}
.ad.rail{min-height:250px;display:flex;align-items:center;justify-content:center}

/* layout */
.calc-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:18px;align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.panel h2{font-size:15px;margin:0 0 14px;text-transform:uppercase;letter-spacing:.6px;color:var(--green-d)}

/* inputs */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:5px}
.field .help{font-weight:500;color:var(--grey);font-size:11.5px;margin-left:4px}
.control{position:relative;display:flex;align-items:center}
.control .pre,.control .suf{position:absolute;color:var(--grey);font-size:14px;pointer-events:none}
.control .pre{left:12px}.control .suf{right:12px}
input[type=number],select{width:100%;padding:11px 12px;font-size:15px;border:1.5px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);transition:border .15s;font-family:inherit}
.control.has-pre input{padding-left:26px}
.control.has-suf input{padding-right:30px}
input:focus,select:focus{outline:none;border-color:var(--green)}
input[type=range]{width:100%;accent-color:var(--green);margin-top:6px}

/* results */
.results-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:8px}
.rcard{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.rcard .v{font-size:21px;font-weight:800;color:var(--green-d);letter-spacing:-.5px}
.rcard .l{font-size:11px;color:var(--grey);margin-top:2px}
.rcard.hero{background:var(--green);border-color:var(--green)}
.rcard.hero .v{color:#fff;font-size:24px}.rcard.hero .l{color:#e0e7ff}

canvas#chart{width:100%;height:240px;margin-top:14px;display:block}
.legend{display:flex;gap:16px;justify-content:center;font-size:12px;color:var(--grey);margin-top:6px}
.legend i{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:5px;vertical-align:-1px}

.btnrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.btn{border:1.5px solid var(--green);color:var(--green);background:#fff;padding:8px 14px;border-radius:9px;
  font-size:13px;font-weight:700;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--green);color:#fff}
.btn.primary{background:var(--green);color:#fff}
.copied{color:var(--green);font-size:12px;font-weight:700;align-self:center}

/* schedule table */
details.sched{margin-top:14px}
details.sched summary{cursor:pointer;font-weight:700;color:var(--green-d);font-size:14px;padding:6px 0}
table.sched{width:100%;border-collapse:collapse;font-size:12.5px;margin-top:8px}
table.sched th,table.sched td{padding:7px 8px;text-align:right;border-bottom:1px solid var(--line)}
table.sched th:first-child,table.sched td:first-child{text-align:left}
table.sched thead th{color:var(--grey);font-size:11px;text-transform:uppercase;letter-spacing:.4px}

/* content blocks */
.section{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:18px 0}
.section h2{font-size:19px;margin:0 0 10px}
.formula{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:ui-monospace,Menlo,monospace;font-size:15px}
.faq{border-top:1px solid var(--line);padding:12px 0}
.faq:last-child{padding-bottom:0}
.faq summary{cursor:pointer;font-weight:700;font-size:15px}
.faq p{color:var(--grey);margin:8px 0 0}
.related{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.related a{background:var(--bg);border:1px solid var(--line);border-radius:9px;padding:9px 13px;font-weight:600;font-size:14px}
.related a:hover{border-color:var(--green);text-decoration:none}

footer{color:var(--grey);font-size:12.5px;text-align:center;padding:26px 0 34px}

@media(max-width:760px){
  .calc-grid{grid-template-columns:1fr}
  h1{font-size:24px}
  .results-cards{grid-template-columns:1fr 1fr}
}