/* حاسبة أرابيا — RTL first، موبایل‌فرست (md/07). فقط ویژگی‌های logical؛ بدون letter-spacing و italic. */
:root{
  --bg:#FAFAF7;--card:#FFFFFF;--fg:#1F2937;--primary:#0F766E;--primary-ink:#0B4F4A;--accent:#C9A227;--accent-ink:#8A6D0B;
  --muted:#F1F1EB;--muted-fg:#5B6572;--border:#E2E2D8;--danger:#B42318;--ok:#067647;--on-primary:#FFFFFF;--ink:#0B3B37;--ink-fg:#F3F4EF;
  --radius:10px;--sans:"IBM Plex Sans Arabic","Segoe UI",Tahoma,system-ui,sans-serif;
  --shadow:0 1px 2px rgba(15,60,56,.06),0 14px 30px -18px rgba(15,60,56,.28);
  color-scheme:light;
}
@media(prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --bg:#0E1513;--card:#16201E;--fg:#E6ECEA;--primary:#2DB5A7;--primary-ink:#7FD8CD;--accent:#E3BC3F;--accent-ink:#E3BC3F;
    --muted:#1C2826;--muted-fg:#9DAAA6;--border:#2A3835;--danger:#F97066;--ok:#47CD89;--on-primary:#06201D;--ink:#0A100F;--ink-fg:#E6ECEA;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 14px 30px -18px rgba(0,0,0,.7);color-scheme:dark;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:400 17px/1.8 var(--sans);color:var(--fg);background:var(--bg);min-height:100vh;display:flex;flex-direction:column;overflow-wrap:break-word}
a{color:var(--primary)}a:hover{color:var(--accent-ink)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:1160px;margin-inline:auto;padding-inline:16px}
@media(min-width:700px){.wrap{padding-inline:24px}}
h1,h2,h3{font-family:var(--sans);color:var(--primary-ink);font-weight:700;line-height:1.4}
h1{font-size:clamp(1.55rem,5.5vw,2.4rem);margin:.4em 0 .35em}
h2{font-size:clamp(1.25rem,3.4vw,1.6rem);margin:1.6em 0 .5em}
h3{font-size:1.15rem;margin:0}
h2 a{color:inherit;text-decoration:none}
strong,b{font-weight:600}
.num{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate;display:inline-block}
.eyebrow{font-size:.85rem;color:var(--muted-fg);font-weight:600}

/* هدر */
.site-header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.bar{display:flex;justify-content:space-between;align-items:center;min-height:60px;gap:16px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--primary-ink);font-weight:700;font-size:1.35rem;line-height:1.1}
.brand img{display:block;height:40px;width:auto}
.brand small{display:block;font-size:.7rem;font-weight:400;color:var(--muted-fg);font-family:system-ui,sans-serif}
.nav{display:flex;gap:6px 24px;flex-wrap:wrap}
.nav a{color:var(--fg);text-decoration:none;font-size:.95rem;padding:8px 0;font-weight:500}.nav a:hover{color:var(--accent-ink)}
.burger{display:none;background:none;border:1px solid var(--border);border-radius:var(--radius);width:44px;height:44px;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s,opacity .2s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:860px){
  .burger{display:flex}
  .nav{display:none;position:absolute;top:100%;inset-inline:0;flex-direction:column;gap:0;background:var(--card);border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:0;z-index:20}
  .nav.open{display:flex}
  .nav a{padding:14px 20px;font-size:1.05rem;border-bottom:1px solid var(--border);min-height:48px}
  .nav a:last-child{border-bottom:0}
}
main.wrap{padding-block:20px 64px;flex:1 0 auto;width:100%}
.crumbs{font-size:.88rem;color:var(--muted-fg)}.crumbs a{color:var(--muted-fg);text-decoration:none}.crumbs a:hover{color:var(--accent-ink)}
.lead{font-size:1.08rem;color:var(--muted-fg);max-width:62ch;margin:0 0 .6em}
.meta{font-size:.88rem;color:var(--muted-fg);margin:0 0 18px}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin:-.1em 0 .7em}
.badge{display:inline-block;background:var(--muted);color:var(--primary-ink);font-size:.82rem;font-weight:600;padding:2px 12px;border-radius:999px;border:1px solid var(--border)}
.badge.gold{background:rgba(201,162,39,.14);color:var(--accent-ink);border-color:rgba(201,162,39,.4)}

/* صفحه اصلی */
.hero{padding:28px 0 20px;text-align:center}
.hero h1{font-size:clamp(1.8rem,6vw,3rem);margin:.2em 0 .3em}
.hero p{color:var(--muted-fg);font-size:1.1rem;margin:0 auto 18px;max-width:52ch}
.search{max-width:560px;margin:0 auto;position:relative}
.search input{width:100%;height:56px;padding-inline:20px;font:400 1.05rem var(--sans);color:var(--fg);background:var(--card);border:2px solid var(--border);border-radius:999px;box-shadow:var(--shadow)}
.search input:focus{border-color:var(--primary);outline:0}
.search-empty{margin:14px 0 0;color:var(--muted-fg)}
.block{margin-top:36px}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.tiles{grid-template-columns:1fr}}
.tile{display:block;padding:18px 20px;text-decoration:none;color:var(--fg);background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:border-color .15s,transform .15s;min-height:44px}
.tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.tile h3{margin:0 0 6px;font-size:1.1rem}
.tile p{margin:0;color:var(--muted-fg);font-size:.92rem;line-height:1.7}
.tile .country{font-size:.78rem;color:var(--accent-ink);font-weight:600}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:22px}
.cat-card{display:block;padding:16px 18px;background:var(--primary);color:var(--on-primary);border-radius:var(--radius);text-decoration:none;font-weight:700}
.cat-card:hover{background:var(--primary-ink);color:var(--on-primary)}
.cat-card span{display:block;font-weight:400;font-size:.88rem;opacity:.9;margin-top:2px}

/* صفحه ابزار */
.tool-layout{display:grid;grid-template-columns:minmax(0,720px) minmax(0,1fr);gap:40px;margin-top:14px;align-items:start}
@media(max-width:980px){.tool-layout{grid-template-columns:minmax(0,1fr);gap:8px}}
.side{position:sticky;top:76px}
@media(max-width:980px){.side{position:static}}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.panel-body{padding:20px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 18px;border-bottom:1px solid var(--border);font-size:.9rem;color:var(--muted-fg);font-weight:600}
.field{margin-bottom:16px}
.field>label,.field>.lbl{display:block;font-size:.95rem;color:var(--fg);font-weight:600;margin-bottom:6px}
.field input[type=text],.field select{width:100%;height:48px;padding-inline:14px;font:400 1rem var(--sans);color:var(--fg);border:1px solid var(--border);border-radius:8px;background:var(--bg)}
.field input:focus,.field select:focus{outline:2px solid var(--primary);border-color:var(--primary)}
.field input[aria-invalid=true]{border-color:var(--danger)}
.field input[data-field][type=text]{direction:ltr;text-align:start}
html[dir=rtl] .field input[data-field][type=text]{text-align:right}
.check{display:flex!important;gap:10px;align-items:center;font-weight:400!important}
.check input{accent-color:var(--primary);width:22px;height:22px}
.field-error{color:var(--danger);font-size:.88rem;margin:5px 0 0}.field-error:empty{display:none}
.field-hint{margin:4px 0 0;font-size:.85rem;color:var(--muted-fg)}
.date-trio{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.5fr);gap:8px}.date-trio input{min-width:0}
.field,.panel,.main{min-width:0}
.date-trio input{text-align:center!important}
.cal-toggle{display:inline-flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;margin-bottom:8px}
.cal-toggle button{background:var(--bg);border:0;padding:6px 16px;font:600 .88rem var(--sans);color:var(--muted-fg);cursor:pointer;min-height:36px}
.cal-toggle button[aria-pressed=true]{background:var(--primary);color:var(--on-primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:var(--on-primary);border:0;border-radius:8px;padding:0 28px;min-height:48px;font:700 1.05rem var(--sans);cursor:pointer;text-decoration:none}
.btn:hover{background:var(--primary-ink);color:var(--on-primary)}
form .btn{width:100%}
@media(min-width:700px){form .btn{width:auto;min-width:180px}}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--border);border-radius:8px;padding:0 14px;min-height:44px;font:600 .9rem var(--sans);cursor:pointer}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-ink)}
.btn-link{background:none;border:0;color:var(--primary);font:600 .88rem var(--sans);cursor:pointer;padding:0;min-height:44px}
.btn-link:hover{color:var(--accent-ink)}
.result .placeholder{padding:28px 20px;margin:0;color:var(--muted-fg)}
.result-main{padding:22px 20px;text-align:center;background:var(--ink);color:var(--ink-fg);border-radius:0}
.result-main span{display:block;font-size:.95rem;opacity:.9;margin-bottom:4px}
.result-main strong{display:block;font-size:clamp(1.7rem,7vw,2.6rem);line-height:1.35;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}
.result-rows{margin:0}
.result-rows div{display:flex;justify-content:space-between;gap:16px;padding:12px 18px;border-bottom:1px solid var(--border);font-size:.95rem}
.result-rows dt{color:var(--muted-fg)}
.result-rows dd{margin:0;font-weight:600;text-align:end;font-variant-numeric:tabular-nums}
.result-sentence{margin:0;padding:14px 18px;font-weight:600;background:rgba(201,162,39,.12);border-bottom:1px solid var(--border)}
.result-foot{margin:0;padding:12px 18px;font-size:.88rem;color:var(--muted-fg)}
.result-foot.warn{background:rgba(201,162,39,.1);color:var(--fg)}
.result-error{margin:0;padding:20px;color:var(--danger);font-weight:600}
.actions{display:flex;gap:8px;flex-wrap:wrap;padding:12px 18px;border-top:1px solid var(--border)}
.report-box{padding:12px 18px;border-top:1px solid var(--border)}
.report-box textarea{width:100%;min-height:90px;padding:10px;font:400 1rem var(--sans);color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:8px;margin:8px 0}
.report-box[hidden]{display:none}
.ad-slot{min-height:280px;margin:0 0 18px;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--muted-fg);font-size:.8rem}

/* محتوا */
.prose{max-width:68ch}
.prose h2:first-child{margin-top:0}
.prose table,.table-wrap table{border-collapse:collapse;width:100%;margin:1em 0;font-size:.95rem}
.prose table{display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--border);padding:9px 12px;text-align:start}.prose th{background:var(--muted)}
.prose ol.steps,.steps-list{padding-inline-start:1.4em}.steps-list li,.prose ol.steps li{margin:.5em 0}
.summary{background:var(--muted);border-inline-start:4px solid var(--accent);border-radius:var(--radius);padding:12px 18px;margin:18px 0}
.summary strong{color:var(--accent-ink)}.summary p{margin:.3em 0 0}
.source-box{background:var(--card);border:1px solid var(--border);border-inline-start:4px solid var(--primary);border-radius:var(--radius);padding:12px 18px;margin:22px 0}
.source-box h3{font-size:1rem;margin-bottom:6px}.source-box p{margin:.3em 0;font-size:.95rem}.source-box ul{margin:.4em 0;padding-inline-start:1.2em}
.method{font-size:.95rem;color:var(--muted-fg);margin:.4em 0}
.faq-title{margin-top:1.4em}
.faq{border-bottom:1px solid var(--border);padding:12px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--primary-ink);min-height:44px;display:flex;align-items:center}
.faq p{margin:.4em 0 0;color:var(--muted-fg)}
.cards-mini{display:flex;flex-direction:column;gap:10px}
.cards-mini a{border:1px solid var(--border);background:var(--card);border-radius:var(--radius);padding:12px 16px;text-decoration:none;color:var(--primary);font-weight:600;min-height:44px}
.cards-mini a:hover{border-color:var(--accent)}
.cta{margin:18px 0}
.disclaimer{font-size:.9rem;color:var(--muted-fg);border-top:1px solid var(--border);padding-top:14px;margin-top:30px}
.byline{font-size:.9rem;color:var(--muted-fg)}.byline p{margin:2px 0}
.avatar{width:96px;height:96px;border-radius:50%;object-fit:cover;border:2px solid var(--border)}

/* فوتر */
.site-footer{background:var(--ink);color:#B9C6C2;padding:44px 0 0}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-bottom:36px}
.site-footer .brand{color:var(--ink-fg)}.site-footer .brand small{color:#9DB0AB}.site-footer .brand img{display:none}
.foot-about p{max-width:42ch;margin:12px 0 0;font-size:.95rem;line-height:1.8}
.foot-col{display:flex;flex-direction:column;gap:6px}
.foot-col h2{font:700 .95rem var(--sans);color:var(--ink-fg);margin:0 0 6px}
.foot-col a{color:#D8E2DF;text-decoration:none;font-size:.95rem;min-height:36px;display:flex;align-items:center}.foot-col a:hover{color:var(--accent)}
.foot-copy{margin:0;padding:20px 0;border-top:1px solid #1D4B46;text-align:center;font-size:.85rem}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr 1fr;gap:28px 16px}.foot-about{grid-column:1/-1}}
.cookie-banner{position:fixed;inset-inline:8px;bottom:8px;z-index:50;max-width:760px;margin-inline:auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 12px;display:flex;gap:10px;align-items:center}
.cookie-banner[hidden]{display:none}
.cookie-banner p{margin:0;flex:1 1 auto;font-size:.8rem;line-height:1.5;color:var(--muted-fg)}
.cookie-actions{display:flex;gap:8px}.cookie-actions .btn{min-height:44px;padding:0 22px;font-size:.95rem}
.err{text-align:center;padding:48px 0 24px}.err .code{font:700 clamp(4rem,14vw,8rem)/1 var(--sans);color:var(--accent)}
.err p{color:var(--muted-fg);max-width:46ch;margin:0 auto 22px}
@media print{.cookie-banner,.site-header,.site-footer,.actions,.report-box,#calc-form,.crumbs,.side,.ad-slot,.btn-link,.prose,.faq,.panel-head button{display:none!important}.tool-layout{display:block}.panel{box-shadow:none}.result-main{background:#fff;color:#000;border:1px solid #000}.result-main strong{color:#000}}