/* Hasebha | حاسبها — mobile-first, RTL-ready, no frameworks */
:root{
  --green:#0b6b3a; --green-dark:#074d29; --green-soft:#e6f2eb;
  --gold:#b98a1d; --gold-soft:#faf3e0;
  --bg:#f4f7f5; --card:#ffffff; --text:#17211c; --muted:#5c6f66;
  --border:#dde7e1; --red:#b3261e; --red-soft:#fbecea;
  --radius:14px; --shadow:0 2px 10px rgba(10,40,25,.07);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Segoe UI",Tahoma,Arial,"Noto Kufi Arabic",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px}
.container{max-width:760px;margin-inline:auto;padding:0 16px}
a{color:var(--green)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* header */
.site-header{background:var(--green-dark);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 16px;max-width:960px;margin-inline:auto}
.brand{color:#fff;text-decoration:none;font-weight:800;font-size:1.15rem;display:flex;align-items:center;gap:8px}
.brand .logo{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:#fff;color:var(--green-dark);border-radius:10px;font-weight:900}
.lang-switch{display:flex;background:rgba(255,255,255,.15);border-radius:999px;padding:3px}
.lang-switch a{text-decoration:none}
.lang-btn{border:0;background:transparent;color:#fff;font-weight:700;font-size:.85rem;padding:8px 14px;border-radius:999px;cursor:pointer;min-height:40px;display:inline-flex;align-items:center}
.lang-btn.active{background:#fff;color:var(--green-dark)}
.main-nav{background:#fff;border-bottom:1px solid var(--border);overflow-x:auto}
.nav-inner{display:flex;gap:2px;max-width:960px;margin-inline:auto;padding:0 8px;overflow-x:auto}
.nav-inner a{white-space:nowrap;text-decoration:none;color:var(--text);font-weight:600;font-size:.92rem;padding:12px 12px;border-bottom:3px solid transparent}
.nav-inner a.active{color:var(--green-dark);border-bottom-color:var(--green)}
.nav-inner a:hover{background:var(--green-soft)}

/* hero + cards */
.hero{background:linear-gradient(135deg,var(--green-dark),var(--green));color:#fff;padding:34px 0 30px;text-align:center}
.hero h1{margin:0 0 8px;font-size:1.5rem;line-height:1.4}
.hero p{margin:0 auto;max-width:560px;opacity:.95;font-size:1rem}
.badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:14px}
.badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:.8rem;font-weight:700;padding:6px 12px;border-radius:999px}
.section{padding:26px 0}
.section h2{font-size:1.25rem;margin:0 0 4px;color:var(--green-dark)}
.section .sub{color:var(--muted);margin:0 0 16px;font-size:.95rem}
.tool-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:640px){.tool-grid{grid-template-columns:1fr 1fr}}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--text);transition:transform .12s ease}
.tool-card:hover{transform:translateY(-2px);border-color:var(--green)}
.tool-card .icon{font-size:1.8rem}
.tool-card h3{margin:0;font-size:1.05rem;color:var(--green-dark)}
.tool-card p{margin:0;color:var(--muted);font-size:.92rem;flex:1}
.tool-card .go{font-weight:800;color:var(--green);font-size:.95rem}

/* forms */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.field{margin-bottom:14px}
label{display:block;font-weight:700;margin-bottom:6px;font-size:.95rem}
.hint{font-weight:400;color:var(--muted);font-size:.83rem;display:block;margin-top:2px}
input[type=number],input[type=date],select{width:100%;font-size:16px;padding:12px;border:2px solid var(--border);border-radius:10px;background:#fff;color:var(--text);font-family:inherit;min-height:52px}
input:focus,select:focus{border-color:var(--green);outline:none}
.radio-row{display:flex;flex-wrap:wrap;gap:8px}
.radio-pill{flex:1 1 45%;min-width:140px}
.radio-pill input{position:absolute;opacity:0;pointer-events:none}
.radio-pill span{display:block;text-align:center;border:2px solid var(--border);border-radius:10px;padding:10px 8px;font-weight:700;font-size:.9rem;cursor:pointer;background:#fff;min-height:52px;display:flex;align-items:center;justify-content:center}
.radio-pill input:checked+span{border-color:var(--green);background:var(--green-soft);color:var(--green-dark)}
.btn{display:block;width:100%;border:0;border-radius:12px;background:var(--green);color:#fff;font-weight:800;font-size:1.05rem;padding:14px;cursor:pointer;min-height:56px;font-family:inherit}
.btn:hover{background:var(--green-dark)}
.btn.secondary{background:#fff;color:var(--green-dark);border:2px solid var(--green)}
.field-err{display:none;color:var(--red);font-size:.85rem;font-weight:600;margin-top:6px}

/* results */
.result{display:none;background:var(--green-soft);border:2px solid var(--green);border-radius:var(--radius);padding:18px;margin-bottom:16px}
.result.show{display:block}
.result .big{font-size:2rem;font-weight:900;color:var(--green-dark);margin:4px 0}
.result .lbl{font-weight:700;color:var(--muted);font-size:.9rem}
table{width:100%;border-collapse:collapse;font-size:.88rem;margin-top:10px;background:#fff;border-radius:10px;overflow:hidden}
th,td{padding:10px 8px;border-bottom:1px solid var(--border);text-align:start}
th{background:var(--green-dark);color:#fff;font-size:.82rem}
tr:last-child td{border-bottom:0}
.num{direction:ltr;unicode-bidi:embed;font-variant-numeric:tabular-nums}
.note{background:var(--gold-soft);border-inline-start:4px solid var(--gold);border-radius:8px;padding:12px 14px;font-size:.9rem;margin:14px 0}
.warn{background:var(--red-soft);border-inline-start:4px solid var(--red);border-radius:8px;padding:12px 14px;font-size:.9rem;margin:14px 0}

/* faq */
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px;overflow:hidden}
.faq-item summary{padding:14px 16px;font-weight:700;cursor:pointer;list-style:none;font-size:.95rem;min-height:52px;display:flex;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--green-soft)}
.faq-item .a{padding:0 16px 16px;color:var(--text);font-size:.93rem;border-top:1px dashed var(--border)}

/* footer */
.site-footer{background:var(--green-dark);color:#e8f0ec;margin-top:30px;padding:26px 0 20px;font-size:.85rem}
.site-footer a{color:#fff}
.site-footer .disclaimer{background:rgba(255,255,255,.08);border-radius:10px;padding:12px 14px;margin-bottom:14px}
.foot-links{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:12px}
.copy{opacity:.7;font-size:.8rem}

/* print */
@media print{
  .site-header,.main-nav,.site-footer,.no-print{display:none!important}
  body{background:#fff}
  .card,.result{box-shadow:none}
  #print-area{display:block!important}
}
#print-area{display:none}

/* trust strip */
.trust{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:560px){.trust{grid-template-columns:repeat(3,1fr)}}
.trust .t{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px;text-align:center;font-size:.88rem}
.trust .t b{display:block;color:var(--green-dark);font-size:1rem}