:root {
  --bg: #070b14;
  --bg-soft: #0b1220;
  --panel: #101a2d;
  --panel-2: #16233a;
  --text: #eef6ff;
  --muted: #91a4bd;
  --primary: #4dd7ff;
  --primary-2: #7c8cff;
  --accent: #43f0c0;
  --danger: #ff6b88;
  --border: rgba(255,255,255,.09);
  --shadow: 0 22px 60px rgba(0,0,0,.35);
  --radius: 18px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(77,215,255,.12), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(124,140,255,.13), transparent 30%),
    var(--bg);
}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}
header{
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(14px);
  background:rgba(7,11,20,.78);
  border-bottom:1px solid var(--border);
}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;flex-shrink:0;white-space:nowrap;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em}
.logo{width:34px;height:34px;flex-shrink:0;display:block;border-radius:10px;box-shadow:0 8px 24px rgba(77,215,255,.18)}
.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.nav-links>a,.nav-dropdown>summary{padding:9px 11px;border-radius:10px;color:var(--muted);font-size:.94rem}
.nav-links a:hover,.nav-links a.active,.nav-dropdown>summary:hover,.nav-dropdown.current-category>summary,.nav-dropdown[open]>summary{background:rgba(255,255,255,.06);color:var(--text)}
main{padding:56px 0 70px}
.hero{padding:34px 0 28px;text-align:center}
.eyebrow{display:inline-flex;padding:7px 11px;border:1px solid rgba(77,215,255,.22);background:rgba(77,215,255,.07);border-radius:999px;color:var(--primary);font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
h1{font-size:clamp(2.2rem,6vw,4.6rem);line-height:.98;letter-spacing:-.055em;margin:18px auto 16px;max-width:920px}
.hero p,.page-intro{color:var(--muted);font-size:1.05rem;line-height:1.75;max-width:760px;margin:0 auto}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.card{background:linear-gradient(180deg,rgba(22,35,58,.92),rgba(12,20,34,.95));border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.tool-card{transition:.2s ease;min-height:190px;display:flex;flex-direction:column}
.tool-card:hover{transform:translateY(-4px);border-color:rgba(77,215,255,.32)}
.tool-card .icon{height:36px;display:flex;align-items:center;font-size:1.65rem;margin-bottom:24px}
.field-hint{color:var(--muted);font-size:.82rem;line-height:1.5}
.mortgage-summary{margin:18px 0 0;padding-top:6px;border-top:1px solid var(--border)}
.mortgage-summary div{display:flex;justify-content:space-between;gap:16px;margin-top:12px;font-size:.9rem}
.mortgage-summary dt{color:var(--muted)}
.mortgage-summary dd{margin:0;min-width:0;text-align:right;font-weight:700;overflow-wrap:anywhere}
.payment-schedule{margin-top:20px;min-width:0}
.payment-schedule summary{cursor:pointer;font-weight:800;color:var(--primary);font-size:1.05rem}
.payment-schedule summary::marker{color:var(--primary)}
.payment-schedule summary:focus-visible,.schedule-scroll:focus-visible{outline:2px solid var(--primary);outline-offset:5px;border-radius:4px}
.payment-schedule .field-hint{margin:16px 0}
.schedule-scroll{max-height:480px;overflow:auto;border:1px solid var(--border);border-radius:12px}
.schedule-table{width:100%;border-spacing:0;font-size:.9rem;font-variant-numeric:tabular-nums}
.schedule-table caption{text-align:left;padding:14px;color:var(--muted)}
.schedule-table th,.schedule-table td{padding:12px 16px;text-align:right;white-space:nowrap;border-bottom:1px solid var(--border)}
.schedule-table thead th{position:sticky;top:0;background:var(--panel-2);color:var(--text);z-index:1}
.schedule-table th:first-child{text-align:left}
.schedule-table tbody th{color:var(--muted);font-weight:500}
.schedule-table td:nth-child(2){color:var(--primary);font-weight:700}
.schedule-table td:nth-child(3){color:#ffb88c}
.schedule-table td:nth-child(4){color:var(--accent)}
.schedule-table td:nth-child(5){color:#b9b3ff}
.schedule-table tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.schedule-table tbody tr:hover{background:rgba(77,215,255,.06)}
.tool-card h2,.tool-card h3{font-size:1.1rem;margin:0 0 8px}
.tool-card p{margin:0;color:var(--muted);line-height:1.6;font-size:.94rem}
.tool-card .go{margin-top:auto;padding-top:18px;color:var(--primary);font-weight:700;font-size:.9rem}
.page-head{margin-bottom:24px}
.page-head h1{font-size:clamp(2.2rem,5vw,3.7rem);margin:0 0 10px;max-width:none;text-align:left}
.page-head p{margin:0;color:var(--muted);line-height:1.7}
.calculator-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:20px;align-items:start}
.calc-card{padding:24px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
label{font-size:.88rem;font-weight:700;color:#c7d6e8}
input,select{
  width:100%;border:1px solid var(--border);background:#09111f;color:var(--text);padding:13px 14px;border-radius:12px;outline:none;
}
input:focus,select:focus{border-color:rgba(77,215,255,.55);box-shadow:0 0 0 3px rgba(77,215,255,.08)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{border:0;border-radius:12px;padding:12px 16px;cursor:pointer;font-weight:800}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#06101b}
.btn-secondary{background:#17243a;color:var(--text);border:1px solid var(--border)}
.result{margin-top:20px;padding:18px;border-radius:14px;background:rgba(67,240,192,.07);border:1px solid rgba(67,240,192,.22)}
.result .label{color:var(--muted);font-size:.86rem;margin-bottom:6px}
.result .value{font-size:clamp(1.5rem,4vw,2.35rem);font-weight:900;letter-spacing:-.03em;word-break:break-word}
.result .sub{margin-top:7px;color:#b6c7d9;font-size:.9rem;line-height:1.5}
.info h2{margin-top:0;font-size:1.05rem}.info p,.info li{color:var(--muted);line-height:1.65;font-size:.92rem}.info ul{padding-left:18px}
.calc-display{width:100%;font-size:2rem;text-align:right;padding:20px 16px;margin-bottom:14px;font-variant-numeric:tabular-nums}
.keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.key{padding:18px 10px;border-radius:12px;border:1px solid var(--border);background:#101a2c;color:var(--text);font-weight:800;cursor:pointer;font-size:1rem}
.key:hover{background:#17253d}.key.op{color:var(--primary)}.key.equals{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#05101a}.key.danger{color:var(--danger)}
footer{border-top:1px solid var(--border);padding:26px 0 38px;color:var(--muted);font-size:.88rem}
.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.small-links{display:flex;gap:14px;flex-wrap:wrap}
.content-page{max-width:820px}.content-page h1{font-size:2.5rem;text-align:left;margin-left:0}.content-page h2{margin-top:32px}.content-page p,.content-page li{color:var(--muted);line-height:1.75}
@media(max-width:860px){.grid{grid-template-columns:repeat(2,1fr)}.calculator-layout{grid-template-columns:1fr}.nav{flex-wrap:wrap;gap:12px;padding-block:14px}.nav-links{width:100%;flex-wrap:wrap;gap:4px}.nav-links>a,.nav-dropdown{flex-shrink:0}}
@media(max-width:560px){main{padding-top:34px}.grid,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.card,.calc-card{padding:18px}.key{padding:16px 8px}.hero{text-align:left}.hero p{margin-left:0}.eyebrow{margin-left:0}.hero h1{margin-left:0}.container{width:min(100% - 22px,1120px)}}

/* Shared category navigation: native details work with keyboard and touch. */
.nav-dropdown{position:relative}
.nav-dropdown>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;white-space:nowrap}
.nav-dropdown>summary::-webkit-details-marker{display:none}
.nav-chevron{width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-top:-3px}
.nav-dropdown[open] .nav-chevron{transform:rotate(225deg);margin-top:3px}
.nav-menu{position:absolute;top:100%;left:0;width:220px;max-height:min(70vh,480px);overflow-y:auto;display:grid;gap:3px;padding:10px;border:1px solid var(--border);border-radius:14px;background:var(--bg-soft);box-shadow:var(--shadow);z-index:30}
.nav-menu a{display:block;padding:10px 12px;border-radius:8px;color:var(--muted);font-size:.94rem}
.nav-links a:focus-visible,.nav-dropdown>summary:focus-visible,.text-link:focus-visible,.tool-card:focus-visible,.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.page-head>.eyebrow{margin-bottom:18px}
.converter-icon{width:44px;height:44px;display:grid;place-items:center;color:var(--primary);background:rgba(77,215,255,.09);border:1px solid rgba(77,215,255,.16);border-radius:12px}
.tool-card .converter-icon{height:44px;justify-content:center;margin-bottom:22px}
.info .converter-icon{margin-bottom:20px}
.text-link,.source-note a{color:var(--primary);font-weight:700}
.text-link:hover,.source-note a:hover{text-decoration:underline}
.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:28px}
.tool-count{display:inline-grid;place-items:center;min-width:24px;height:24px;margin-left:8px;border-radius:6px;background:rgba(0,0,0,.14);font-size:.8rem}
.tool-search{max-width:640px;margin:24px auto 0}
.tool-search label{display:block;margin-bottom:10px}
.tool-search input{padding:16px 18px}
.tool-search .field-hint{margin:8px 0 0}
.tool-section{margin-top:64px;scroll-margin-top:155px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px}
.section-heading h2{font-size:2rem;letter-spacing:-.04em;margin:12px 0 0}
.section-heading p{color:var(--muted);margin:0 0 4px;line-height:1.6}
.tool-section .grid{margin-top:22px}
.upcoming-tools{margin-top:56px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.upcoming-tools h2{margin:16px 0 8px;font-size:1.5rem}
.upcoming-tools p{color:var(--muted);line-height:1.6;margin:0}
.upcoming-tools .text-link{white-space:nowrap}
#no-tools{margin-top:32px;color:var(--muted)}
.field{min-width:0}
@media(max-width:560px){
  .nav-links{justify-content:space-between;gap:0}
  .nav-links>a,.nav-dropdown>summary{padding:10px 6px;font-size:.82rem}
  .nav-dropdown>summary{gap:6px}
  .nav-menu{width:200px}
  .nav-dropdown:nth-of-type(2) .nav-menu{left:auto;right:0}
  .hero-actions{justify-content:flex-start}
  .section-heading,.upcoming-tools{align-items:flex-start;flex-direction:column;gap:14px}
  .tool-section{margin-top:44px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.tool-card{transition:none}.tool-card:hover{transform:none}}

/* Generators share the existing form and result styling. */
textarea{font:inherit;width:100%;border:1px solid var(--border);background:#09111f;color:var(--text);padding:13px 14px;border-radius:12px;resize:vertical;min-height:90px}
textarea:focus{outline:2px solid var(--primary);outline-offset:2px}
.generator-card{min-width:0}
.calculator-icon{color:#b9b3ff;background:rgba(124,140,255,.09);border-color:rgba(124,140,255,.2)}
.generator-icon{color:var(--accent);background:rgba(67,240,192,.07);border-color:rgba(67,240,192,.18)}
.generator-results{margin-top:24px}
.generator-results>label{display:block;margin-bottom:10px}
.generator-results textarea{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;line-height:1.7;overflow-wrap:anywhere;white-space:pre-wrap}
.choice-fieldset{margin:0;padding:0;border:0}
.choice-fieldset legend{font-size:.88rem;font-weight:700;color:#c7d6e8;margin-bottom:12px}
.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.check-choice{display:flex;align-items:center;gap:10px;line-height:1.5;cursor:pointer}
.check-choice input{width:18px;height:18px;flex-shrink:0;margin:0;accent-color:var(--primary)}
.fixed-option{margin:0;padding:13px 0;color:var(--muted)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.code-preview{margin-top:20px;padding:12px;background:#fff;border-radius:12px;overflow:auto;max-width:100%}
.code-preview svg{display:block}
.qr-preview svg{width:min(100%,360px);height:auto;margin:auto}
.barcode-preview svg{max-width:none}
.nav-dropdown:last-child .nav-menu{left:auto;right:0;width:245px}
@media(max-width:560px){.nav-dropdown:last-child .nav-menu{width:235px}.choice-grid{grid-template-columns:1fr}}

/* Generated conversion pages and expandable unit directories. */
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px 12px;margin-bottom:24px;color:var(--muted);font-size:.86rem;line-height:1.6}
.breadcrumbs a,.conversion-links a{color:var(--primary)}
.breadcrumbs a:hover,.conversion-links a:hover{text-decoration:underline}
.breadcrumbs a:focus-visible,.conversion-links a:focus-visible,.conversion-group summary:focus-visible{outline:2px solid var(--primary);outline-offset:4px;border-radius:4px}
.conversion-section{margin-top:32px;scroll-margin-top:160px;min-width:0}
.conversion-section h2{font-size:1.25rem;line-height:1.4;overflow-wrap:anywhere}
.conversion-section>h2:first-child{margin-top:0}
.conversion-formula{padding:14px;background:var(--bg-soft);border-radius:10px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.conversion-directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}
.conversion-group{border:1px solid var(--border);border-radius:12px;background:var(--bg-soft);padding:16px;min-width:0}
.conversion-group summary{cursor:pointer;font-weight:700;line-height:1.5}
.conversion-group[open] summary{color:var(--primary)}
.conversion-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;padding:0;list-style:none;line-height:1.6;font-size:.94rem}
.conversion-links a{display:inline-block;padding:4px 0;overflow-wrap:anywhere}
.conversion-group .conversion-links{grid-template-columns:1fr;margin-bottom:0}
.conversion-shortcuts{padding:20px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-soft)}
.conversion-table th,.conversion-table td{white-space:normal;min-width:130px}
.conversion-table{table-layout:fixed}
.conversion-table td{overflow-wrap:anywhere}
@media(max-width:560px){.conversion-directory,.conversion-links{grid-template-columns:1fr}.breadcrumbs{font-size:.8rem}.page-head h1{overflow-wrap:anywhere}}