/* ============================================================
   حاسبة العمر — Design System (light, RTL)
   Tokens: emerald #047857 / deep #065F46 · gold #D4A017 /
   gold-soft #FEF3C7 · ink #1C1917 · paper #FFF · cream #FFFBEB
   ============================================================ */
:root{
  --emerald:#047857;
  --emerald-deep:#065F46;
  --emerald-soft:#ECFDF5;
  --gold:#D4A017;
  --gold-deep:#B45309;
  --gold-soft:#FEF3C7;
  --ink:#1C1917;
  --muted:#57534E;
  --paper:#FFFFFF;
  --cream:#FFFBEB;
  --line:#E7E5E4;
  --radius:18px;
  --shadow:0 10px 30px rgba(6,95,70,.10);
  --font:'IBM Plex Sans Arabic','Tajawal',system-ui,'Segoe UI',Tahoma,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:
    radial-gradient(900px 420px at 85% -80px, var(--gold-soft) 0%, transparent 60%),
    radial-gradient(700px 380px at 8% 0px, var(--emerald-soft) 0%, transparent 55%),
    var(--paper);
  line-height:1.9;
  -webkit-text-size-adjust:100%;
}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px) saturate(1.4);
  -webkit-backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.35rem;color:var(--ink);text-decoration:none}
.logo span{color:var(--emerald)}
.site-nav{display:flex;gap:4px;flex-wrap:wrap}
.site-nav a{
  color:var(--muted);text-decoration:none;font-weight:600;font-size:.92rem;
  padding:8px 12px;border-radius:10px;transition:background .2s,color .2s;
}
.site-nav a:hover{background:var(--cream);color:var(--emerald-deep)}
.site-nav a.current{background:var(--emerald-soft);color:var(--emerald-deep)}

/* ---------- Hero ---------- */
.hero{padding:52px 0 30px;text-align:center}
.trust-badge{
  display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center;
  background:rgba(255,255,255,.7);border:1px solid var(--line);
  padding:8px 18px;border-radius:999px;font-size:.88rem;color:var(--muted);
  box-shadow:var(--shadow);margin-bottom:20px;
}
.trust-badge .sep{color:var(--gold)}
.hero h1{font-size:clamp(1.9rem,4.6vw,3rem);font-weight:800;line-height:1.5;margin-bottom:14px}
.hero h1 em{font-style:normal;color:var(--emerald);
  background:linear-gradient(120deg,var(--emerald),var(--emerald-deep));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.lede{font-size:1.08rem;color:var(--muted);max-width:720px;margin:0 auto 22px}

/* ---------- Tool card ---------- */
.tool-section{padding:10px 0 40px}
.tool-card{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;max-width:860px;margin:0 auto;
}
.tool-card h2{font-size:1.35rem;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.micro{font-size:.88rem;color:var(--muted)}
.cal-toggle{display:inline-flex;background:var(--cream);border:1px solid var(--line);
  border-radius:999px;padding:4px;margin:16px auto 4px}
.cal-toggle button{border:0;background:transparent;padding:9px 22px;border-radius:999px;
  font-family:inherit;font-weight:700;font-size:.95rem;color:var(--muted);cursor:pointer;transition:all .2s}
.cal-toggle button.active{background:var(--emerald);color:#fff;box-shadow:0 4px 12px rgba(4,120,87,.35)}
.field-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.field{display:flex;flex-direction:column;gap:6px;text-align:right}
.field span{font-weight:600;font-size:.92rem}
.field span b{color:#DC2626}
.field input{
  font-family:inherit;font-size:1.05rem;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:12px;background:#fff;color:var(--ink);width:100%;transition:border-color .2s,box-shadow .2s;
}
.field input:focus{outline:none;border-color:var(--emerald);box-shadow:0 0 0 3px rgba(4,120,87,.14)}
.btn-primary{
  font-family:inherit;font-size:1.08rem;font-weight:800;color:#fff;cursor:pointer;border:0;
  background:linear-gradient(135deg,var(--emerald),var(--emerald-deep));
  padding:14px 44px;border-radius:14px;width:100%;margin-top:6px;
  box-shadow:0 8px 20px rgba(4,120,87,.3);transition:transform .15s,box-shadow .2s;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(4,120,87,.38)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  box-shadow:0 8px 20px rgba(212,160,23,.3);
}
.error-box{
  background:#FEF2F2;border:1px solid #FECACA;color:#991B1B;
  padding:12px 16px;border-radius:12px;margin-bottom:16px;font-weight:600;
}
.warn{color:var(--gold-deep);font-weight:600;margin-top:10px}

/* ---------- Results ---------- */
.result-card{
  margin-top:24px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,#fff, var(--cream));
  padding:24px;box-shadow:var(--shadow);
}
.result-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.result-head h3{font-size:1.2rem}
.badge{font-size:.78rem;font-weight:700;padding:4px 14px;border-radius:999px}
.badge.exact{background:var(--emerald-soft);color:var(--emerald-deep);border:1px solid #A7F3D0}
.age-display{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.age-unit{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 8px;text-align:center;
  box-shadow:0 4px 14px rgba(28,25,23,.05);
}
.age-unit .num{font-size:2rem;font-weight:800;color:var(--emerald-deep);line-height:1.3}
.age-unit .lbl{color:var(--muted);font-size:.9rem}
.result-details{display:grid;gap:8px}
.result-details>div{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:10px 14px;background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:10px;
  font-size:.95rem;flex-wrap:wrap;
}
.result-details span{color:var(--muted)}
.result-details strong{color:var(--ink)}
.privacy-note{margin-top:14px;font-size:.85rem;color:var(--muted);text-align:center}

/* ---------- Answer box (AEO) ---------- */
.answer-box{
  border:1px solid #FCD34D;border-radius:var(--radius);padding:24px;margin:34px auto;
  background:linear-gradient(160deg,#FFFBEB,#FEF3C7);max-width:860px;box-shadow:var(--shadow);
}
.answer-box h2{font-size:1.2rem;margin-bottom:8px;color:var(--gold-deep)}
.answer-box p{margin:0}

/* ---------- Article content ---------- */
.article{padding:10px 0 40px}
.article .wrap{max-width:820px}
.article h2{font-size:1.45rem;margin:38px 0 12px;color:var(--emerald-deep);
  padding-bottom:8px;border-bottom:2px solid var(--gold-soft)}
.article h3{font-size:1.15rem;margin:24px 0 8px}
.article p{margin:0 0 14px;color:#292524}
.article ul,.article ol{margin:0 0 16px;padding-right:24px}
.article li{margin-bottom:8px;color:#292524}
.article strong{color:var(--ink)}
.callout{
  background:var(--emerald-soft);border-right:4px solid var(--emerald);
  border-radius:12px;padding:16px 20px;margin:20px 0;
}
.callout.gold{background:var(--gold-soft);border-right-color:var(--gold)}
.example{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin:20px 0;
  box-shadow:0 4px 14px rgba(28,25,23,.05);
}
.example h4{margin-bottom:8px;color:var(--emerald-deep)}
table.data{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 14px rgba(28,25,23,.05)}
table.data th{background:var(--emerald-deep);color:#fff;padding:10px 12px;text-align:right;font-weight:700}
table.data td{padding:10px 12px;border-bottom:1px solid var(--line)}
table.data tr:nth-child(even) td{background:var(--cream)}

/* ---------- Related links ---------- */
.related{padding:20px 0 40px}
.related .wrap{max-width:1100px}
.related h2{font-size:1.3rem;margin-bottom:16px;text-align:center}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.related-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;
  text-decoration:none;color:var(--ink);box-shadow:0 4px 12px rgba(28,25,23,.04);transition:transform .15s,box-shadow .2s;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.related-card .ic{font-size:1.5rem}
.related-card h3{font-size:1.02rem;margin:8px 0 4px;color:var(--emerald-deep)}
.related-card p{font-size:.88rem;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq{padding:10px 0 50px}
.faq .wrap{max-width:820px}
.faq h2{font-size:1.45rem;margin-bottom:18px;text-align:center;color:var(--emerald-deep)}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq-q{
  width:100%;text-align:right;font-family:inherit;font-size:1.02rem;font-weight:700;color:var(--ink);
  background:none;border:0;padding:16px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-q::after{content:'+';font-size:1.4rem;color:var(--emerald);flex-shrink:0;transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:600px}
.faq-a p{padding:0 20px 18px;color:#44403C}

/* ---------- Cards grid (blog hub) ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:24px 0}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  box-shadow:0 4px 12px rgba(28,25,23,.04);transition:transform .15s,box-shadow .2s;
}
a.card{text-decoration:none;color:inherit;display:block}
a.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ic{font-size:2rem}
.card h3{margin:10px 0 6px;font-size:1.1rem;color:var(--emerald-deep)}
.card p{font-size:.92rem;color:var(--muted);margin:0 0 10px}
.card .more{color:var(--emerald);font-weight:700;font-size:.92rem}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--cream);padding:34px 0;margin-top:20px}
.site-footer .wrap{display:grid;gap:10px}
.site-footer p{margin:0;color:var(--muted);font-size:.92rem}
.footer-links{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.footer-links a{color:var(--emerald-deep);text-decoration:none;font-size:.88rem;padding:4px 10px;border-radius:8px}
.footer-links a:hover{background:#fff}

/* ---------- Misc ---------- */
.divider{border:0;border-top:1px dashed var(--line);margin:30px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.person-block{background:var(--cream);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}
.person-block h3{margin-bottom:10px;color:var(--emerald-deep)}
.note-box{background:#FFF7ED;border:1px solid #FDBA74;border-radius:12px;padding:14px 18px;margin:18px 0;font-size:.94rem}

@media (max-width:640px){
  .field-row{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .field input{padding:10px 8px;font-size:.95rem}
  .tool-card{padding:20px}
  .age-unit .num{font-size:1.5rem}
  .two-col{grid-template-columns:1fr}
  .hero{padding:36px 0 22px}
}