/* KhaleejCalc — design tokens
   ink: deep Gulf-water navy · sea: teal · gold: date-palm gold for money · mist: cool page background */
:root{
  --ink:#0d2b3e;--ink-2:#173f57;--sea:#0f7c78;--sea-dark:#0a5f5c;--sea-tint:#e3f2f0;
  --gold:#c08a1e;--gold-tint:#fbf3df;--mist:#eef3f5;--paper:#ffffff;
  --text:#14222c;--muted:#566874;--line:#d7e1e6;--danger:#b42318;
  --r-lg:18px;--r-md:12px;--r-sm:8px;
  --font:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --measure:72ch;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{font-family:var(--font);background:var(--mist);color:var(--text);font-size:17px;line-height:1.7}
a{color:var(--sea);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--sea-dark);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;letter-spacing:-.015em;color:var(--ink)}
h2{font-size:1.5rem;font-weight:800}
h3{font-size:1.12rem;font-weight:700}

/* ---------- Header ---------- */
header.site{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 1px 0 rgba(255,255,255,.06)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo:hover{color:#fff;text-decoration:none}
.logo .mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--gold);color:var(--ink);font-weight:800;font-size:1.1rem}
.logo span:not(.mark){color:#7fd3cd}
.logo b{color:#7fd3cd;font-weight:800}
header.site nav{display:flex;gap:4px;flex-wrap:wrap}
header.site nav a{color:#d6e4ea;text-decoration:none;font-weight:600;font-size:.94rem;padding:8px 12px;border-radius:8px}
header.site nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-btn{display:none;cursor:pointer;color:#fff;font-weight:700;font-size:.92rem;padding:8px 14px;border:1px solid rgba(255,255,255,.25);border-radius:8px;margin:0}
@media (max-width:860px){
  .nav-btn{display:inline-block}
  header.site nav{display:none;width:100%;flex-direction:column;padding:0 0 14px}
  .nav-toggle:checked ~ nav{display:flex}
  .nav-toggle:focus-visible + .nav-btn{outline:3px solid var(--gold)}
}

/* ---------- Home hero ---------- */
.hero{background:var(--ink);color:#fff;margin:0 -20px;padding:56px 20px 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:56px;background:
  radial-gradient(120% 56px at 50% 100%,var(--mist) 98%,transparent 100%)}
.hero-inner{max-width:760px;position:relative;z-index:1}
.hero h1{color:#fff;font-size:clamp(2rem,5.4vw,3.3rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}
.hero p{color:#c3d4dc;font-size:1.1rem;max-width:60ch}
.finder{margin-top:28px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.finder input{flex:1 1 320px;padding:16px 18px;font-size:1.05rem;border-radius:var(--r-md);border:2px solid transparent;background:#fff;color:var(--text)}
.finder input:focus{border-color:var(--gold);outline:none}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.chips a{color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px;font-size:.9rem;font-weight:600}
.chips a:hover{background:#fff;color:var(--ink)}
.facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px;color:#c3d4dc;font-size:.95rem}
.facts strong{display:block;color:var(--gold);font-size:1.6rem;font-weight:800;line-height:1.1}

/* ---------- Home sections & tool list ---------- */
.section{padding:40px 0 8px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-bottom:2px solid var(--ink);padding-bottom:10px;margin-bottom:6px}
.section-head h2{font-size:1.6rem}
.section-head p{color:var(--muted);font-size:.95rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:0 28px;margin:6px 0 24px}
.tool-card{display:grid;grid-template-columns:44px 1fr;gap:0 14px;align-items:start;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--text);text-decoration:none}
.tool-card:hover{text-decoration:none;color:var(--text)}
.tool-card:hover h3{color:var(--sea)}
.tool-card .ico{grid-row:span 2;width:44px;height:44px;border-radius:var(--r-sm);background:var(--paper);border:1px solid var(--line);display:grid;place-items:center;font-size:1.3rem}
.tool-card h3{font-size:1.05rem;margin:2px 0 2px;transition:color .15s}
.tool-card p{color:var(--muted);font-size:.92rem;line-height:1.5}
.tool-card[hidden]{display:none}
.no-match{display:none;color:var(--muted);padding:20px 0}

/* ---------- Breadcrumb & page head ---------- */
.crumbs{font-size:.88rem;color:var(--muted);padding:22px 0 0}
.crumbs a{color:var(--muted)}
.page-head{padding:12px 0 6px;max-width:var(--measure)}
.page-head h1{font-size:clamp(1.8rem,4.6vw,2.6rem);font-weight:800;letter-spacing:-.025em;line-height:1.15;margin-bottom:12px}
.page-head p{color:#33444f;font-size:1.06rem}
.page-head p+p{margin-top:8px}
.updated{display:inline-block;font-size:.85rem!important;color:var(--muted)!important;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:4px 12px;margin-top:12px!important}

/* ---------- Calculator ---------- */
.calc{background:var(--paper);border:1px solid var(--line);border-top:6px solid var(--sea);border-radius:var(--r-lg);padding:28px;margin:22px 0;box-shadow:0 12px 32px -18px rgba(13,43,62,.35)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.field{margin-bottom:18px}
label{display:block;font-weight:700;margin-bottom:6px;font-size:.95rem;color:var(--ink)}
.hint{display:block;font-weight:500;color:var(--muted);font-size:.83rem;margin-top:4px}
label .hint{display:inline;margin:0}
input,select,textarea{width:100%;padding:13px 14px;font:inherit;font-size:1rem;border:1.5px solid var(--line);border-radius:var(--r-sm);background:#fbfcfd;color:var(--text)}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--sea);margin-right:6px}
input:hover,select:hover{border-color:#b8c8d0}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--sea);box-shadow:0 0 0 3px var(--sea-tint);background:#fff}
fieldset{border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;margin-bottom:18px}
legend{font-weight:700;padding:0 6px;color:var(--ink)}
.btn{display:inline-block;width:100%;padding:15px 18px;font:inherit;font-size:1.05rem;font-weight:800;background:var(--sea);color:#fff;border:0;border-radius:var(--r-sm);cursor:pointer;text-align:center;text-decoration:none}
.btn:hover{background:var(--sea-dark);color:#fff;text-decoration:none}
.btn-row{display:flex;gap:10px;margin-top:6px}
.btn-row .btn{flex:1}
.btn-row .btn.secondary{flex:0 0 auto;width:auto}
.btn.secondary{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn.secondary:hover{background:var(--mist);color:var(--ink)}
.error{color:var(--danger);font-size:.92rem;font-weight:600;margin-top:12px;display:none}

/* Result styled as a settlement slip */
.result{display:none;margin-top:26px}
.result .total{position:relative;background:var(--gold-tint);border:1.5px dashed #d9b766;border-radius:var(--r-md);padding:22px 18px;text-align:center}
.result .total::before,.result .total::after{content:"";position:absolute;top:50%;width:18px;height:18px;margin-top:-9px;border-radius:50%;background:var(--paper);border:1.5px dashed #d9b766}
.result .total::before{left:-10px;clip-path:inset(0 0 0 50%)}
.result .total::after{right:-10px;clip-path:inset(0 50% 0 0)}
.result .total small{display:block;color:#6b5a2e;font-size:.9rem;font-weight:600;margin-bottom:4px}
.result .total strong{display:block;font-size:clamp(1.9rem,6vw,2.6rem);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.15}
.breakdown{width:100%;border-collapse:collapse;margin-top:14px;font-size:.96rem}
.breakdown td,.breakdown th{padding:11px 4px;border-bottom:1px dotted #c3d0d6;text-align:left}
.breakdown td:last-child,.breakdown th:last-child{text-align:right;font-weight:700;white-space:nowrap}
.breakdown tr:last-child td{border-bottom:0}
.note{background:var(--sea-tint);border-left:4px solid var(--sea);padding:12px 16px;border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.93rem;margin-top:16px;color:#1d3a45}

/* ---------- Article ---------- */
article.content{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px clamp(20px,5vw,56px);margin:26px 0 40px}
article.content>*{max-width:var(--measure)}
article.content h2{font-size:1.55rem;margin:40px 0 12px;padding-top:4px}
article.content h2:first-of-type{margin-top:8px}
article.content h3{margin:24px 0 8px}
article.content p,article.content li{margin-bottom:12px;color:#26363f}
article.content ul,article.content ol{padding-left:24px;margin-bottom:12px}
article.content li::marker{color:var(--sea)}
article.content strong{color:var(--ink)}
.formula{background:var(--ink);color:#e7f2f5;border-radius:var(--r-sm);padding:14px 18px;font-family:ui-monospace,"SF Mono",Consolas,monospace;font-size:.92rem;margin:14px 0;overflow-x:auto;line-height:1.6}
table.simple{width:100%;border-collapse:collapse;margin:14px 0 18px;font-size:.94rem;display:block;overflow-x:auto}
table.simple th,table.simple td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.simple th{background:var(--mist);color:var(--ink);font-weight:700;border-bottom:2px solid var(--ink)}
.toc{background:var(--mist);border-radius:var(--r-md);padding:18px 22px;margin:0 0 28px}
.toc strong{display:block;margin-bottom:8px;color:var(--ink)}
.toc ol{padding-left:22px;columns:2 260px;column-gap:28px;margin:0}
.toc li{margin-bottom:6px;break-inside:avoid;font-size:.95rem}
details{border-bottom:1px solid var(--line);padding:14px 2px}
details:first-of-type{border-top:1px solid var(--line)}
details summary{font-weight:700;cursor:pointer;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--sea);flex:none}
details[open] summary::after{content:"–"}
details p{margin-top:10px}

.ad-slot{margin:22px 0;min-height:90px}
.ad-slot:empty,.ad-slot:not(:has(*)){min-height:0;margin:0}

/* ---------- Related ---------- */
.related{margin:0 0 44px}
.related h2{font-size:1.25rem;margin-bottom:12px}
.related ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.related li a{display:block;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:var(--r-sm);font-weight:700;color:var(--ink);text-decoration:none}
.related li a:hover{border-color:var(--sea);border-left-color:var(--sea);color:var(--sea)}

/* ---------- Simple pages ---------- */
.prose-page{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px clamp(20px,5vw,56px);margin:22px 0 44px}
.prose-page>*{max-width:var(--measure)}
.prose-page h2{font-size:1.3rem;margin:26px 0 8px}
.prose-page p,.prose-page li{margin-bottom:12px}
.prose-page ul{padding-left:22px}
.prose-page .btn{width:auto}

/* Home explainer */
.home-about{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px clamp(20px,5vw,48px);margin:30px 0 48px}
.home-about h2{margin-bottom:12px}
.home-about p{margin-bottom:12px;color:#26363f}
.home-about ul{list-style:none}
.home-about li{padding:12px 0;border-bottom:1px solid var(--line)}
.home-about li strong{display:block;color:var(--ink)}
@media (max-width:760px){.home-about{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
footer.site{background:var(--ink);color:#a9bec8;padding:48px 0 28px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:28px}
.foot-grid h3{color:#fff;font-size:.98rem;margin-bottom:10px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:7px}
footer.site a{color:#cfdee5;text-decoration:none}
footer.site a:hover{color:#fff;text-decoration:underline}
.foot-brand p{margin-top:12px;line-height:1.6}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot-bottom nav{display:flex;gap:16px;flex-wrap:wrap}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}

@media (max-width:600px){
  body{font-size:16px}
  .row{grid-template-columns:1fr}
  .calc{padding:20px 16px}
  article.content{padding:26px 18px}
  .hero{padding:40px 20px 56px}
  .btn-row{flex-direction:column}
  .btn-row .btn.secondary{width:100%}
}
@media print{header.site,footer.site,.ad-slot,.related,.btn-row{display:none}body{background:#fff}}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
body{overflow-x:clip}
.hero{margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);padding-left:max(20px,calc(50vw - 530px));padding-right:max(20px,calc(50vw - 530px))}
section[hidden]{display:none}
.result .total strong,.breakdown td:last-child,.facts strong,.slip td:last-child,.slip strong{font-variant-numeric:tabular-nums}
.logo .word b{color:#7fd3cd}
@media (min-width:960px){
  .hero-inner{max-width:none;display:grid;grid-template-columns:1.45fr 1fr;gap:56px;align-items:center}
}
.slip{display:none;background:var(--paper);color:var(--text);border-radius:var(--r-md);padding:24px 24px 18px;position:relative;box-shadow:0 30px 60px -30px rgba(0,0,0,.6);transform:rotate(1.2deg)}
@media (min-width:960px){.slip{display:block}}
.slip::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:10px;background:radial-gradient(circle at 6px 0,var(--paper) 6px,transparent 6.5px) 0 0/12px 10px repeat-x}
.slip h2{font-size:1rem;color:var(--muted);font-weight:600;margin-bottom:12px}
.slip table{width:100%;border-collapse:collapse;font-size:.92rem}
.slip td{padding:7px 0;border-bottom:1px dotted #c3d0d6}
.slip td:last-child{text-align:right;font-weight:700}
.slip .slip-total{display:flex;justify-content:space-between;align-items:baseline;margin-top:12px;padding-top:10px;border-top:2px solid var(--ink)}
.slip .slip-total strong{font-size:1.7rem;color:var(--ink);letter-spacing:-.02em}
.slip a{display:inline-block;margin-top:12px;font-weight:700;font-size:.92rem}
.logo .word{color:#fff}