/* ============================================================
   حاسبها — ملف الأنماط الموحد
   يدعم التصميم الجديد + الصفحات القديمة + الإنجليزية
   ============================================================ */

/* ============ متغيرات التصميم ============ */
:root{
  --bg:#ffffff;
  --surface:#ffffff;
  --surface-muted:#f6f7f8;
  --text:#0b0d10;
  --text-2:#4b5563;
  --text-3:#8b95a1;
  --border:#e6e8eb;
  --brand:#0b0d10;
  --on-brand:#ffffff;
  --c-fin:#2563eb;
  --c-fin-bg:#eaf1fe;
  --c-conv:#7c3aed;
  --c-conv-bg:#f2ecfd;
  --c-health:#059669;
  --c-health-bg:#e8f6f0;
  --c-gen:#475569;
  --c-gen-bg:#eef0f3;
  --radius:12px;
  --shadow:0 1px 2px rgba(11,13,16,.05);
  --maxw:1060px;
  --container:700px;
}

[data-theme="dark"]{
  --bg:#0e1116;
  --surface:#161a21;
  --surface-muted:#12151b;
  --text:#f3f4f6;
  --text-2:#aab3bf;
  --text-3:#6b7480;
  --border:#262c36;
  --brand:#f3f4f6;
  --on-brand:#0b0d10;
  --c-fin-bg:rgba(37,99,235,.16);
  --c-conv-bg:rgba(124,58,237,.16);
  --c-health-bg:rgba(5,150,105,.16);
  --c-gen-bg:rgba(148,163,184,.14);
  --shadow:none;
}

/* ============ أساسيات ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",Tahoma,"Noto Kufi Arabic","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
svg{display:block}
img{max-width:100%;height:auto}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--c-fin);outline-offset:2px;border-radius:4px}

/* ============ الهيدر ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-in{display:flex;align-items:center;gap:20px;height:60px}
.header-content{display:flex;justify-content:space-between;align-items:center;padding:16px 0}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:700;color:var(--text)}
.logo img{height:35px;vertical-align:middle;margin-inline-end:8px}
.logo-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:var(--brand);color:var(--on-brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
}
.main-nav{display:flex;gap:4px;margin-inline-start:8px}
.main-nav a{padding:6px 12px;border-radius:8px;font-size:14px;color:var(--text-2);transition:.15s}
.main-nav a:hover{background:var(--surface-muted);color:var(--text)}
.header-actions{margin-inline-start:auto;display:flex;align-items:center;gap:8px}
.lang-btn,.theme-btn{
  border:1px solid var(--border);border-radius:8px;padding:6px 12px;
  font-size:13px;color:var(--text);background:var(--surface);transition:.15s;
}
.lang-btn:hover,.theme-btn:hover{border-color:var(--text)}
.theme-btn{width:34px;height:34px;padding:0;display:flex;align-items:center;justify-content:center}

/* ============ Hero ============ */
.hero{padding:72px 0 48px;text-align:center;background:linear-gradient(135deg,#ecfdf5,#f0fdf4)}
[data-theme="dark"] .hero{background:linear-gradient(135deg,#0e1116,#12151b)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--border);border-radius:999px;
  padding:4px 14px;font-size:12.5px;color:var(--text-2);
  background:var(--surface);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-health)}
.hero h1,.hero-title{font-size:clamp(30px,5.4vw,48px);font-weight:800;line-height:1.25;margin:18px 0 10px;color:var(--text)}
.hero .lead,.hero-desc{color:var(--text-2);font-size:17px;max-width:560px;margin:0 auto 28px;line-height:1.8}
.hero-logo{height:80px;margin-bottom:20px}
.hero-sub{font-size:18px;color:var(--text-3);font-style:italic}

/* شريط البحث */
.searchbox{
  display:flex;align-items:center;gap:8px;max-width:580px;margin:0 auto;
  background:var(--surface);border:1.5px solid var(--border);border-radius:14px;
  padding:6px 6px 6px 18px;box-shadow:var(--shadow);transition:border-color .15s;
}
.searchbox:focus-within{border-color:var(--text)}
.searchbox svg{flex:none;color:var(--text-3)}
.searchbox input{
  flex:1;border:0;outline:0;background:transparent;font-size:15.5px;
  color:var(--text);padding:10px 0;min-width:0;
}
.searchbox input::placeholder{color:var(--text-3)}
.search-go{
  background:var(--brand);color:var(--on-brand);border-radius:10px;
  padding:10px 24px;font-size:14.5px;font-weight:600;transition:.15s;
}
.search-go:hover{opacity:.85}
.kbd-hint{font-size:11.5px;color:var(--text-3);margin-top:8px}
.kbd{
  border:1px solid var(--border);border-bottom-width:2px;border-radius:5px;
  padding:0 6px;font-size:11px;background:var(--surface-muted);
}

/* الاقتراحات */
.quick-chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:16px}
.chip{
  border:1px solid var(--border);border-radius:999px;background:var(--surface);
  padding:6px 15px;font-size:13px;color:var(--text-2);transition:.15s;
}
.chip:hover{border-color:var(--text);color:var(--text)}

/* الإحصائيات */
.stats{display:flex;gap:0;justify-content:center;margin-top:40px;flex-wrap:wrap}
.stat{padding:0 32px;text-align:center}
.stat + .stat{border-inline-start:1px solid var(--border)}
.stat b{display:block;font-size:21px;font-weight:700;font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:var(--text-3)}

/* ============ أقسام الحاسبات ============ */
.calc-section{padding:36px 0 8px}
.main-content{padding:40px 0}
.category-section{margin-bottom:48px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px}
.section-head h2,.category-title{font-size:23px;font-weight:700;margin-bottom:18px}
.section-head span{font-size:13px;color:var(--text-3)}
.tabs{
  display:flex;gap:4px;flex-wrap:wrap;
  border-bottom:1px solid var(--border);margin-bottom:20px;
}
.tab{
  padding:10px 16px;font-size:14.5px;color:var(--text-2);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:.15s;
}
.tab:hover{color:var(--text)}
.tab.on{color:var(--text);border-bottom-color:var(--text);font-weight:600}

/* شبكة البطاقات */
.grid,.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(245px,1fr));gap:14px}
.card,.calc-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;transition:border-color .15s,transform .15s;
}
.card:hover,.calc-card:hover{border-color:var(--text);transform:translateY(-2px);box-shadow:0 8px 24px rgba(5,150,105,0.12)}
.card-top{display:flex;align-items:center;gap:12px}
.card-icon{
  width:42px;height:42px;border-radius:10px;flex:none;
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.card-icon svg{width:21px;height:21px}
.fin  .card-icon{background:var(--c-fin-bg);color:var(--c-fin)}
.conv .card-icon{background:var(--c-conv-bg);color:var(--c-conv)}
.health .card-icon{background:var(--c-health-bg);color:var(--c-health)}
.gen  .card-icon{background:var(--c-gen-bg);color:var(--c-gen)}
.card h3,.calc-card h3{font-size:15.5px;font-weight:600;color:var(--text)}
.card p,.calc-card p{font-size:13px;color:var(--text-3);line-height:1.6}
.card-cta{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--text-2);transition:gap .15s,color .15s;
}
.card:hover .card-cta{gap:10px;color:var(--text)}
.empty-msg{
  grid-column:1/-1;text-align:center;padding:44px 20px;
  border:1.5px dashed var(--border);border-radius:var(--radius);
  color:var(--text-3);font-size:14.5px;
}

/* ============ المميزات ============ */
.features{padding:56px 0 8px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:22px}
.feature{background:var(--surface-muted);border-radius:var(--radius);padding:20px}
.feature .f-ic{width:38px;height:38px;border-radius:9px;background:var(--surface);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feature .f-ic svg{width:19px;height:19px;color:var(--text-2)}
.feature b{display:block;font-size:14.5px;margin-bottom:4px}
.feature span{font-size:13px;color:var(--text-3);line-height:1.7}

/* ============ FAQ ============ */
.faq{padding:56px 0}
.faq details{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:10px;overflow:hidden;
}
.faq summary{
  list-style:none;cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;color:var(--text-3);flex:none;transition:transform .2s;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 20px 16px;color:var(--text-2);font-size:14px;line-height:1.8}

/* ============ الفوتر ============ */
.site-footer{border-top:1px solid var(--border);padding:32px 0;margin-top:24px;background:var(--surface)}
.footer-in{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-in nav,.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-in nav a,.footer-in p,.footer-links a{font-size:13px;color:var(--text-3)}
.footer-in nav a:hover,.footer-links a:hover{color:var(--text)}

/* ============ صفحات الحاسبات ============ */
.breadcrumb{background:var(--surface);padding:12px 0;font-size:13px;color:var(--text-3);border-bottom:1px solid var(--border)}
.breadcrumb a{color:var(--c-health);text-decoration:none}
.breadcrumb span{margin:0 4px}
.calc-wrapper{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:28px 24px;margin:30px auto;max-width:700px}
.calc-wrapper h1{text-align:center;color:var(--c-health);font-size:22px;margin-bottom:4px}
.subtitle{text-align:center;color:var(--text-2);font-size:14px;margin-bottom:28px}
label{display:block;font-weight:600;margin-bottom:6px;font-size:15px;color:var(--text)}
.hint{font-size:12px;color:var(--text-3);margin-bottom:10px}
.input-row{display:flex;gap:10px;margin-bottom:20px;align-items:center}
.input-row input{padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:16px;text-align:right;flex:1;background:var(--surface);color:var(--text)}
.input-row input:focus{outline:none;border-color:var(--c-health)}
.unit-select{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:15px;background:var(--surface);color:var(--text);cursor:pointer;margin-bottom:16px}
.full-width{margin-bottom:20px}
.full-width select{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:15px;background:var(--surface);color:var(--text);cursor:pointer}
.calc-btn{width:100%;background:var(--c-health);color:#fff;border:none;padding:16px;border-radius:12px;font-size:18px;font-weight:700;cursor:pointer;margin-top:8px;transition:.15s}
.calc-btn:hover{opacity:.9}
.result-card{background:var(--c-health-bg);border:2px solid var(--c-health);border-radius:16px;padding:28px;text-align:center;margin-top:24px;display:none}
.result-card.show{display:block}
.result-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}
.result-row:last-child{border-bottom:none;margin-top:8px;padding-top:16px;border-top:2px solid var(--c-health)}
.result-label{color:var(--text-2);font-size:14px}
.result-value{font-weight:700;font-size:18px;color:var(--text)}
.result-value.big{font-size:24px;color:var(--c-health)}
.slider-group{margin-bottom:24px}
.slider-value{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.slider-value span{font-size:20px;font-weight:700;color:var(--c-health)}
input[type=range]{width:100%;height:6px;background:var(--border);border-radius:3px;outline:none;-webkit-appearance:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;background:var(--c-health);border-radius:50%;cursor:pointer;border:3px solid var(--surface);box-shadow:0 2px 6px rgba(0,0,0,0.2)}
.labels{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3);margin-top:4px}
.percent-input{display:flex;align-items:center;gap:8px;margin-bottom:20px}
.percent-input input{flex:1;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:16px;text-align:right;background:var(--surface);color:var(--text)}
.percent-input input:focus{outline:none;border-color:var(--c-health)}
.percent-input span{font-size:24px;font-weight:700;color:var(--text-2)}
.radio-group{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.radio-option{flex:1;min-width:100px}
.radio-option input{display:none}
.radio-option label{display:block;text-align:center;padding:14px;border:2px solid var(--border);border-radius:12px;cursor:pointer;font-weight:600;font-size:14px;transition:.2s;background:var(--surface);color:var(--text-2)}
.radio-option input:checked+label{border-color:var(--c-health);background:var(--c-health-bg);color:var(--c-health)}
.vat-badge{text-align:center;margin-bottom:24px}
.vat-badge span{background:var(--c-health-bg);color:var(--c-health);font-weight:700;font-size:24px;padding:8px 20px;border-radius:12px;border:2px solid var(--c-health);display:inline-block}

/* BMI + عناصر مشتركة */
.bmi-value,.calorie-value,.water-value{font-size:48px;font-weight:900;color:var(--c-health)}
.bmi-category{font-size:20px;font-weight:700;margin-top:8px}
.bmi-detail{color:var(--text-2);font-size:15px;margin-top:12px;line-height:2}
.weight-info,.ideal-range,.cups-info{background:var(--surface);border-radius:12px;padding:16px;margin-top:16px}
.weight-info p,.ideal-range p,.cups-info p{color:var(--text-2);font-size:14px;margin-bottom:8px}
.weight-info strong,.ideal-range strong,.cups-info strong{color:var(--c-health)}
.ideal-range strong{font-size:18px}
.calorie-label,.water-label{color:var(--text-2);font-size:14px}
.goals{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-top:20px}
.goal-box{background:var(--surface);border-radius:10px;padding:16px 8px}
.goal-box .val{font-weight:700;font-size:20px;color:var(--text)}
.goal-box .lbl{font-size:11px;color:var(--text-3);margin-top:4px}
.goal-box.lose .val{color:#ef4444}
.goal-box.maintain .val{color:var(--c-health)}
.goal-box.gain .val{color:#eab308}
.result-box{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;margin-top:24px;display:none;line-height:2}
.result-box.show{display:block}
.section-title{font-size:18px;font-weight:700;color:var(--c-health);margin-bottom:12px;border-bottom:2px solid var(--c-health);padding-bottom:8px}
.highlight{color:var(--c-health);font-weight:700;font-size:16px}
.divider{margin:20px 0;border-top:1px dashed var(--border)}
.zodiac-btn{display:inline-block;margin-top:12px;background:var(--c-health);color:#fff;padding:10px 20px;border-radius:10px;text-decoration:none;font-weight:600;font-size:14px;cursor:pointer;border:none}
.age-main{font-size:40px;font-weight:900;color:var(--c-health)}
.age-details{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}
.age-item,.diff-item{background:var(--surface);border-radius:10px;padding:16px 8px;text-align:center}
.age-item .val,.diff-item .val{font-weight:700;font-size:22px;color:var(--text)}
.age-item .lbl,.diff-item .lbl{font-size:11px;color:var(--text-3);margin-top:4px}
.main-diff{font-size:36px;font-weight:900;color:var(--c-health)}
.details-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.live-badge{text-align:center;margin-bottom:20px}
.live-badge span{background:var(--c-health-bg);color:var(--c-health);font-size:12px;padding:4px 12px;border-radius:20px;font-weight:600;display:inline-block}
.search-box{position:relative;margin-bottom:16px}
.search-box input{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:15px;text-align:right;background:var(--surface);color:var(--text)}
.search-box input:focus{outline:none;border-color:var(--c-health)}
.currency-select{width:100%;padding:14px 16px;border:2px solid var(--border);border-radius:12px;font-size:15px;background:var(--surface);color:var(--text);cursor:pointer;margin-bottom:16px;max-height:200px}
.swap-btn{text-align:center;margin:12px 0}
.swap-btn button{background:var(--surface-muted);border:2px solid var(--border);border-radius:50%;width:40px;height:40px;font-size:18px;cursor:pointer;color:var(--text)}
.converted-amount{font-size:36px;font-weight:900;color:var(--c-health);word-break:break-all}
.rate-info{color:var(--text-2);font-size:13px;margin-top:8px}
.loading{text-align:center;color:var(--text-3);font-size:14px;padding:12px}

/* المقالات */
.article-box,.seo-text{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;margin-top:32px;text-align:right;line-height:2.3}
.article-box h2,.seo-text h2{font-size:22px;color:var(--c-health);margin-bottom:24px;border-bottom:3px solid var(--c-health);padding-bottom:12px}
.article-box h3{font-size:18px;color:var(--text);margin:24px 0 12px}
.article-box p,.seo-text p{color:var(--text-2);font-size:15px;margin-bottom:14px}
.article-box ul,.article-box ol{color:var(--text-2);font-size:14px;padding-right:20px;margin-bottom:14px}
.article-box .tip{background:var(--c-health-bg);border-right:4px solid var(--c-health);padding:16px;margin:16px 0;border-radius:8px}
.article-box .warning{background:#fef3c7;border-right:4px solid #eab308;padding:16px;margin:16px 0;border-radius:8px;color:#92400e}
.article-box .example{background:var(--surface-muted);border:1px solid var(--border);border-radius:12px;padding:16px;margin:16px 0}
.article-box .ref{color:var(--text-3);font-size:13px;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}
.back-link{display:inline-block;margin-top:20px;color:var(--c-health);text-decoration:underline;font-size:14px}

/* ============ تجاوب ============ */
@media (max-width:720px){
  .main-nav{display:none}
  .stats{gap:16px}
  .stat{padding:0 16px}
  .hero{padding:48px 0 32px}
  .search-go{padding:10px 16px}
}

@media (max-width:600px){
  .hero-title,.hero h1{font-size:30px}
  .grid,.cards-grid{grid-template-columns:1fr 1fr;gap:10px}
  .card,.calc-card{padding:14px 12px}
  .card h3,.calc-card h3{font-size:14px}
  .card p,.calc-card p{font-size:12px}
  .calc-wrapper{padding:20px 16px}
  .article-box,.seo-text{padding:20px 16px}
  .bmi-value,.calorie-value,.water-value{font-size:36px}
  .age-main{font-size:32px}
  .main-diff{font-size:28px}
  .goals{grid-template-columns:1fr}
  .age-details{grid-template-columns:1fr 1fr}
  .details-grid{grid-template-columns:1fr}
  .result-box{padding:16px}
}

/* ============ دعم الصفحات الإنجليزية (LTR) ============ */
html[dir="ltr"],
html[lang="en"]{
  direction:ltr;
}

html[dir="ltr"] body,
html[lang="en"] body{
  direction:ltr;
  text-align:left;
}

/* الحقول */
html[dir="ltr"] .input-row input,
html[lang="en"] .input-row input,
html[dir="ltr"] .percent-input input,
html[lang="en"] .percent-input input{
  text-align:left;
}

/* المقالات */
html[dir="ltr"] .article-box,
html[lang="en"] .article-box,
html[dir="ltr"] .seo-text,
html[lang="en"] .seo-text{
  text-align:left;
  direction:ltr;
}

html[dir="ltr"] .article-box ul,
html[lang="en"] .article-box ul,
html[dir="ltr"] .article-box ol,
html[lang="en"] .article-box ol{
  padding-right:0;
  padding-left:20px;
}

html[dir="ltr"] .article-box .tip,
html[lang="en"] .article-box .tip{
  border-right:none;
  border-left:4px solid var(--c-health);
}

html[dir="ltr"] .article-box .warning,
html[lang="en"] .article-box .warning{
  border-right:none;
  border-left:4px solid #eab308;
}

/* الفوتر */
html[dir="ltr"] .footer-in nav,
html[lang="en"] .footer-in nav{
  direction:ltr;
}

/* أزرار الإذاعة */
html[dir="ltr"] .radio-option label,
html[lang="en"] .radio-option label{
  direction:ltr;
}

/* الموقع الرئيسي */
html[dir="ltr"] .hero,
html[lang="en"] .hero,
html[dir="ltr"] .section-head,
html[lang="en"] .section-head,
html[dir="ltr"] .category-title,
html[lang="en"] .category-title{
  text-align:left;
}

html[dir="ltr"] .hero,
html[lang="en"] .hero{
  text-align:center;
}