/* ==========================================================
   ConvertThisNow — stylesheet
   Aesthetic: drafting blueprint / precision instrument
   ========================================================== */
:root{
  --paper:#EDEAE1; --paper-raised:#F7F5EF; --chalk:#fff;
  --ink:#16213A; --navy:#0F2A43; --navy-deep:#0A1C2E;
  --brass:#B8823C; --brass-light:#D9A85C;
  --graphite:#5B6570; --line:#C9C3B4;
  --ok:#2F6B4F;
  --f-display:'Space Grotesk',system-ui,sans-serif;
  --f-body:'Inter',system-ui,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,monospace;
  --max:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--f-display);color:var(--navy);margin:0;line-height:1.15}
p{margin:0}
a{color:var(--navy)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--brass);color:var(--navy-deep);padding:8px 14px;z-index:99}

/* ---------- ruler tick band ---------- */
.tickband{height:6px;background-color:var(--navy);
  background-image:repeating-linear-gradient(90deg,var(--brass) 0,var(--brass) 1px,transparent 1px,transparent 12px)}

/* ---------- header ---------- */
.site-header{background:var(--navy);color:#fff}
.header-inner{display:flex;align-items:center;gap:20px;padding:14px 0;flex-wrap:wrap}
.wordmark{font-family:var(--f-display);font-weight:600;font-size:1.2rem;color:#fff;text-decoration:none;display:flex;align-items:center;gap:8px;flex-shrink:0}
.wordmark-mark{color:var(--brass-light);font-family:var(--f-mono)}
.gsearch{position:relative;flex:1 1 260px;display:flex;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}
.gsearch input{flex:1;background:transparent;border:0;padding:9px 13px;color:#fff;font-family:var(--f-body);font-size:.9rem;min-width:0}
.gsearch input::placeholder{color:rgba(255,255,255,.5)}
.gsearch button{background:var(--brass);color:var(--navy-deep);border:0;padding:0 16px;font-family:var(--f-display);font-weight:600;cursor:pointer}
.gsearch button:hover{background:var(--brass-light)}
.sresults{position:absolute;top:calc(100% + 4px);left:0;right:0;background:var(--paper-raised);color:var(--ink);border:1px solid var(--line);max-height:340px;overflow-y:auto;z-index:40;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.sresults a{display:block;text-decoration:none;color:inherit;border-bottom:1px solid var(--line);padding:9px 13px;font-size:.88rem}
.sresults a:hover,.sresults a:focus{background:var(--chalk)}
.sresults .sr-cat{color:var(--graphite);font-size:.78rem}
.hnav{display:flex;gap:18px;flex-shrink:0}
.hnav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:.9rem}
.hnav a:hover{color:var(--brass-light)}

/* ---------- breadcrumb ---------- */
.crumb{font-family:var(--f-mono);font-size:.76rem;color:var(--graphite);padding:14px 0 0}
.crumb a{color:var(--graphite);text-decoration:none}
.crumb a:hover{color:var(--brass)}

/* ---------- hero (home) ---------- */
.hero{background:var(--navy);color:#fff;padding:56px 0 76px}
.eyebrow{color:var(--brass-light);font-family:var(--f-mono);font-size:.82rem;margin-bottom:12px}
.hero h1{color:#fff;font-size:clamp(2rem,4.4vw,3.2rem);font-weight:600;letter-spacing:-.01em;max-width:16ch}
.hero-sub{margin-top:16px;max-width:58ch;color:rgba(255,255,255,.72);font-size:1.03rem}
.hero-grid{display:grid;gap:36px}

/* ---------- instrument (converter widget) ---------- */
.instrument{background:var(--paper-raised);color:var(--ink);border:1px solid var(--line);box-shadow:0 22px 56px rgba(0,0,0,.32);max-width:780px}
.page-instrument{box-shadow:0 8px 24px rgba(0,0,0,.10);margin-bottom:34px}
.inst-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:16px 24px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.inst-head h2,.inst-head h1{font-size:1.1rem}
.inst-head .cat-pick{font-family:var(--f-mono);font-size:.8rem;background:var(--chalk);border:1px solid var(--line);padding:6px 8px;color:var(--ink);max-width:100%}
.inst-body{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:16px;padding:24px}
.dial{display:flex;flex-direction:column;gap:7px;min-width:0}
.dial-label{font-family:var(--f-mono);font-size:.7rem;color:var(--graphite)}
.dial-input{font-family:var(--f-mono);font-size:clamp(1.35rem,3.6vw,1.95rem);font-weight:600;color:var(--navy);background:var(--paper);border:1px solid var(--line);border-bottom:3px solid var(--brass);padding:9px 11px;width:100%;min-width:0}
.dial-input:focus{background:var(--chalk)}
.dial-unit{font-family:var(--f-body);font-size:.9rem;background:var(--chalk);border:1px solid var(--line);padding:8px 9px;color:var(--ink);width:100%;min-width:0}
.swap{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--navy);color:var(--brass-light);display:flex;align-items:center;justify-content:center;cursor:pointer;margin-bottom:7px;transition:transform .15s}
.swap:hover{background:var(--navy-deep)}
.swap:active{transform:rotate(180deg)}
.inst-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:0 24px 18px;flex-wrap:wrap}
.formula{font-family:var(--f-mono);font-size:.79rem;color:var(--graphite)}
.copy-btn{font-family:var(--f-mono);font-size:.74rem;background:var(--chalk);border:1px solid var(--line);padding:6px 11px;cursor:pointer;color:var(--ink)}
.copy-btn:hover{border-color:var(--brass)}
.copy-btn.done{color:var(--ok);border-color:var(--ok)}
@media (max-width:640px){
  .inst-body{grid-template-columns:1fr}
  .swap{justify-self:center;transform:rotate(90deg);margin:2px 0}
  .swap:active{transform:rotate(270deg)}
}

/* ---------- special modes ---------- */
.mode-panel{padding:24px}
.mode-panel textarea{width:100%;min-height:120px;font-family:var(--f-mono);font-size:.9rem;padding:11px;border:1px solid var(--line);background:var(--paper);resize:vertical}
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin-top:14px}
.case-btn{font-family:var(--f-mono);font-size:.76rem;background:var(--chalk);border:1px solid var(--line);border-left:3px solid var(--brass);padding:9px 11px;cursor:pointer;text-align:left;color:var(--ink)}
.case-btn:hover{background:var(--paper)}
.rate-note{font-size:.8rem;color:var(--graphite);padding:0 24px 18px;font-family:var(--f-mono)}
.rate-note.warn{color:#8A5A1E}

/* ---------- chips ---------- */
.section{padding:52px 0}
.section h2{font-size:1.45rem;margin-bottom:6px}
.section .sub{color:var(--graphite);font-size:.93rem;margin-bottom:20px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{font-family:var(--f-mono);font-size:.8rem;background:var(--paper-raised);border:1px solid var(--line);border-left:3px solid var(--brass);padding:8px 13px;color:var(--ink);text-decoration:none;display:inline-block}
.chip:hover{background:var(--chalk);border-color:var(--brass)}

/* ---------- group directory ---------- */
.group{margin-bottom:38px}
.group-head{display:flex;align-items:center;gap:10px;border-bottom:2px solid var(--navy);padding-bottom:8px;margin-bottom:16px}
.group-head h3{font-size:1.12rem}
.group-head .gi{font-family:var(--f-mono);color:var(--brass);font-size:1.05rem}
.group-head .gc{margin-left:auto;font-family:var(--f-mono);font-size:.74rem;color:var(--graphite)}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.cat-card{background:var(--paper-raised);padding:16px 17px;display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit}
.cat-card:hover{background:var(--chalk)}
.cat-card .ci{font-family:var(--f-mono);color:var(--brass);font-size:1.1rem}
.cat-card h4{font-family:var(--f-display);font-size:.97rem;color:var(--navy);margin:0}
.cat-card p{font-size:.81rem;color:var(--graphite)}

/* ---------- conversion table (SEO content) ---------- */
.conv-table{width:100%;border-collapse:collapse;background:var(--paper-raised);border:1px solid var(--line);font-family:var(--f-mono);font-size:.84rem}
.conv-table th,.conv-table td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--line)}
.conv-table th{background:var(--navy);color:#fff;font-family:var(--f-display);font-size:.8rem;letter-spacing:.02em}
.conv-table tr:last-child td{border-bottom:0}
.conv-table tbody tr:hover{background:var(--chalk)}
.table-scroll{overflow-x:auto}

/* ---------- prose ---------- */
.prose{max-width:66ch}
.prose h2{font-size:1.25rem;margin:30px 0 10px}
.prose h3{font-size:1.02rem;margin:22px 0 8px}
.prose p{margin-bottom:12px;color:#2A3447}
.prose code{font-family:var(--f-mono);background:var(--paper-raised);border:1px solid var(--line);padding:1px 5px;font-size:.87em}
.callout{background:var(--paper-raised);border-left:3px solid var(--brass);padding:14px 18px;margin:18px 0;font-size:.92rem}

/* ---------- related links ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px}
.rel-grid a{font-family:var(--f-mono);font-size:.8rem;text-decoration:none;color:var(--ink);background:var(--paper-raised);border:1px solid var(--line);padding:9px 12px}
.rel-grid a:hover{background:var(--chalk);border-color:var(--brass)}

/* ---------- trust strip ---------- */
.trust{background:var(--navy);color:#fff;padding:46px 0}
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:26px}
.trust-item{border-left:2px solid var(--brass);padding-left:15px}
.trust-fig{display:block;font-family:var(--f-mono);font-size:1.9rem;color:var(--brass-light);margin-bottom:4px}
.trust-item p{color:rgba(255,255,255,.75);font-size:.9rem}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:32px 0;margin-top:20px}
.foot{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.foot p{color:var(--graphite);font-size:.84rem;margin-top:4px}
.foot-links{display:flex;gap:16px;flex-wrap:wrap}
.foot-links a{color:var(--graphite);text-decoration:none;font-size:.85rem}
.foot-links a:hover{color:var(--ink)}

/* ==========================================================
   Articles, policy pages, contact form, expanded footer
   ========================================================== */

/* ---------- article cards ---------- */
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.art-card{background:var(--paper-raised);padding:20px;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:8px}
.art-card:hover{background:var(--chalk)}
.art-card-meta{font-family:var(--f-mono);font-size:.71rem;color:var(--brass);letter-spacing:.02em}
.art-card h3{font-family:var(--f-display);font-size:1.02rem;line-height:1.25;color:var(--navy)}
.art-card p{font-size:.85rem;color:var(--graphite);line-height:1.5}

/* ---------- article page ---------- */
.article{max-width:none}
.art-meta{font-family:var(--f-mono);font-size:.76rem;color:var(--graphite);margin-bottom:12px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.art-cat{background:var(--navy);color:var(--brass-light);padding:3px 9px}
.article h1{font-size:clamp(1.65rem,3.4vw,2.35rem);line-height:1.14;max-width:22ch;margin-bottom:14px}
.art-standfirst{font-size:1.08rem;color:var(--graphite);max-width:60ch;line-height:1.55;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px}
.art-body{max-width:68ch}
.art-body p{margin-bottom:14px}
.art-body h2{font-size:1.32rem;margin:34px 0 12px;padding-top:4px;border-top:2px solid var(--navy);padding-top:14px}
.art-body h3{font-size:1.04rem;margin:24px 0 8px;color:var(--navy)}
.art-body ul,.art-body ol{margin:0 0 16px;padding-left:22px}
.art-body li{margin-bottom:7px;color:#2A3447}
.art-body table{margin:18px 0}
.art-body sup{font-size:.7em}
.art-body a{color:var(--navy);text-decoration:underline;text-decoration-color:var(--brass);text-underline-offset:2px}
.art-body a:hover{color:var(--brass)}

/* ---------- prev / next ---------- */
.prevnext{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:40px}
.pn{background:var(--paper-raised);padding:16px 18px;text-decoration:none;color:var(--navy);font-family:var(--f-display);font-size:.93rem;line-height:1.3}
.pn:hover{background:var(--chalk)}
.pn span{display:block;font-family:var(--f-mono);font-size:.7rem;color:var(--brass);margin-bottom:5px}
.pn.next{text-align:right}

/* ---------- policy / prose pages ---------- */
.crumb-note{font-family:var(--f-mono);font-size:.76rem;color:var(--graphite);border-left:3px solid var(--brass);padding-left:10px;margin-bottom:20px}
.prose ul,.prose ol{margin:0 0 14px;padding-left:22px}
.prose li{margin-bottom:6px;color:#2A3447}
.prose table{margin:16px 0}
.prose a{color:var(--navy);text-decoration:underline;text-decoration-color:var(--brass);text-underline-offset:2px}

/* ---------- contact form ---------- */
.field{margin-bottom:16px}
.field .dial-unit,.field input[type=text],.field input[type=email],.field select{width:100%}
.field textarea{width:100%;min-height:150px;font-family:var(--f-body);font-size:.92rem;padding:10px 11px;border:1px solid var(--line);background:var(--chalk);resize:vertical;color:var(--ink)}
.field textarea:focus,.field input:focus,.field select:focus{background:#fff}
.field-hint{font-size:.78rem;color:var(--graphite);margin-top:5px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.submit-btn{font-family:var(--f-display);font-weight:600;font-size:.95rem;background:var(--navy);color:#fff;border:0;border-bottom:3px solid var(--brass);padding:12px 26px;cursor:pointer}
.submit-btn:hover{background:var(--navy-deep)}
.form-msg{padding:13px 16px;margin-bottom:20px;font-size:.92rem;border-left:3px solid}
.form-msg.ok{background:#EAF3ED;border-color:var(--ok);color:#1E4A35}
.form-msg.bad{background:#F6ECE4;border-color:#A8541E;color:#7A3D14}

/* ---------- expanded footer ---------- */
.foot-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;padding-bottom:26px}
.foot-cols h4{font-family:var(--f-display);font-size:.88rem;color:var(--navy);margin-bottom:10px}
.foot-cols a{display:block;color:var(--graphite);text-decoration:none;font-size:.84rem;margin-bottom:6px}
.foot-cols a:hover{color:var(--brass)}
.foot-brand strong{font-family:var(--f-display);font-size:1.05rem;color:var(--navy)}
.foot-brand p{color:var(--graphite);font-size:.84rem;margin-top:6px;max-width:34ch}
.foot-addr{font-family:var(--f-mono);font-size:.76rem;line-height:1.6}
.foot-base{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.foot-base p{color:var(--graphite);font-size:.8rem}
.foot-base a{color:var(--graphite)}
@media (max-width:820px){.foot-cols{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot-cols{grid-template-columns:1fr}}