/* =========================================================
   نبض الصحة — Design tokens
   Concept: "خلية النبض" (Pulse Cell) — hub-and-spoke topic wheel
   echoing a heartbeat pulse, tying "Topical Authority" (hub +
   spokes) to the health subject (pulse = vitality signal).
   ========================================================= */
:root{
  --bg:            #F5F7F3;   /* pale sage paper */
  --bg-panel:      #EAEFE7;   /* muted sage panel */
  --ink:           #12241F;   /* deep pine text */
  --ink-soft:      #4B5A54;   /* secondary text */
  --pine:          #1F6F5C;   /* primary / brand */
  --pine-deep:     #143F35;   /* primary hover / dark */
  --amber:         #F2A93B;   /* energy accent / CTA */
  --pulse:         #E4572E;   /* pulse-line accent, used sparingly */
  --line:          #D7DED6;   /* hairline */
  --card:          #FFFFFF;

  --font-display: "Cairo", "Tajawal", sans-serif;
  --font-body:    "IBM Plex Sans Arabic", "Cairo", sans-serif;

  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px -14px rgba(18,36,31,0.25);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.8;
  direction:rtl;
  text-align:right;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family:var(--font-display); margin:0 0 .5em; font-weight:800; color:var(--pine-deep); }
p{ margin:0 0 1em; color:var(--ink-soft); }
.container{ max-width:1120px; margin:0 auto; padding:0 24px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-display); font-weight:700; font-size:.85rem;
  color:var(--pine); letter-spacing:.02em;
  background:var(--bg-panel); border:1px solid var(--line);
  padding:6px 14px; border-radius:999px; margin-bottom:16px;
}
.eyebrow::before{ content:""; width:8px; height:8px; border-radius:50%; background:var(--pulse); }

/* ---------- Header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(245,247,243,.9); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; padding:16px 24px; max-width:1120px; margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:800; font-size:1.25rem; color:var(--pine-deep); }
.brand .dot{ width:12px; height:12px; border-radius:50%; background:var(--pulse); box-shadow:0 0 0 4px rgba(228,87,46,.15); }
.nav-links{ display:flex; gap:6px; flex-wrap:wrap; }
.nav-links a{
  font-size:.92rem; padding:8px 12px; border-radius:999px; color:var(--ink-soft); font-weight:600;
}
.nav-links a:hover, .nav-links a.active{ background:var(--pine); color:#fff; }
.nav-cta{
  background:var(--amber); color:var(--pine-deep); font-family:var(--font-display); font-weight:800;
  padding:10px 18px; border-radius:999px; border:none; cursor:pointer; font-size:.9rem;
}

/* ---------- Hero + pulse/topic wheel ---------- */
.hero{ padding:64px 0 40px; }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center; }
.hero h1{ font-size:clamp(2rem,4vw,2.9rem); line-height:1.25; }
.hero .lead{ font-size:1.05rem; max-width:46ch; }
.hero-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-top:20px; }
.btn{
  display:inline-flex; align-items:center; gap:8px; font-family:var(--font-display); font-weight:800;
  padding:13px 22px; border-radius:999px; border:none; cursor:pointer; font-size:.95rem;
}
.btn-primary{ background:var(--pine); color:#fff; }
.btn-primary:hover{ background:var(--pine-deep); }
.btn-ghost{ background:transparent; border:1.5px solid var(--line); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--pine); color:var(--pine); }

.wheel-wrap{ position:relative; }
.wheel-caption{ text-align:center; font-size:.8rem; color:var(--ink-soft); margin-top:10px; }
.wheel-node text{ font-family:var(--font-body); }
.wheel-node circle{ transition:transform .25s ease; transform-origin:center; }
.wheel-node:hover circle{ transform:scale(1.08); }
.wheel-node a{ cursor:pointer; }

/* ---------- Sections ---------- */
section{ padding:56px 0; }
.section-head{ max-width:60ch; margin-bottom:32px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px; box-shadow:var(--shadow);
}
.card h3{ font-size:1.05rem; }
.card .tag{
  display:inline-block; font-size:.75rem; font-weight:700; color:var(--pine);
  background:var(--bg-panel); padding:4px 10px; border-radius:999px; margin-bottom:10px;
}
.card a.more{ color:var(--pulse); font-weight:700; font-size:.9rem; }

.pulse-divider{ display:flex; align-items:center; gap:10px; margin:8px 0 36px; color:var(--pine); }
.pulse-divider svg{ flex:1; height:20px; }

/* ---------- Tool / calculator (self-contained service) ---------- */
.tool-panel{
  background:var(--pine-deep); color:#fff; border-radius:24px; padding:40px; position:relative; overflow:hidden;
}
.tool-panel::after{
  content:""; position:absolute; inset:0; opacity:.08;
  background-image:radial-gradient(circle at 20% 20%, #fff 0, transparent 40%);
}
.tool-panel h2{ color:#fff; }
.tool-panel .lead{ color:#DCE9E3; }
.tool-grid{ display:grid; grid-template-columns:1fr 1fr; gap:28px; margin-top:24px; position:relative; z-index:1; }
.field{ margin-bottom:14px; }
.field label{ display:block; font-size:.85rem; margin-bottom:6px; color:#DCE9E3; font-weight:700; }
.field input, .field select{
  width:100%; padding:12px 14px; border-radius:12px; border:none; font-family:var(--font-body); font-size:1rem;
}
.result-box{
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.2); border-radius:16px; padding:22px;
}
.result-box .big{ font-family:var(--font-display); font-size:2.4rem; font-weight:800; color:var(--amber); }
.result-box .row{ display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px dashed rgba(255,255,255,.15); font-size:.9rem; }
.note-privacy{ font-size:.78rem; color:#B9CFC6; margin-top:14px; display:flex; gap:8px; align-items:flex-start; }

/* ---------- Content pages (article-style) ---------- */
.article{ max-width:72ch; margin:0 auto; }
.article h2{ margin-top:1.4em; font-size:1.4rem; }
.article ul{ color:var(--ink-soft); padding-inline-start:1.4em; }
.article li{ margin-bottom:.4em; }
.kw-cloud{ display:flex; flex-wrap:wrap; gap:8px; margin:18px 0; }
.kw-cloud span{ font-size:.78rem; background:var(--bg-panel); color:var(--ink-soft); padding:5px 12px; border-radius:999px; }
.breadcrumb{ font-size:.85rem; color:var(--ink-soft); margin-bottom:18px; }
.breadcrumb a{ color:var(--pine); font-weight:700; }
.related{ margin-top:48px; padding-top:32px; border-top:1px solid var(--line); }

.gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.gallery figure{ margin:0; background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm); overflow:hidden; }
.gallery figcaption{ padding:10px 14px; font-size:.85rem; color:var(--ink-soft); }

/* ---------- Footer ---------- */
footer{ background:var(--pine-deep); color:#DCE9E3; padding:48px 0 24px; margin-top:40px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:24px; }
footer h4{ color:#fff; font-family:var(--font-display); margin-bottom:12px; font-size:.95rem; }
footer a{ display:block; color:#B9CFC6; font-size:.88rem; padding:4px 0; }
footer a:hover{ color:#fff; }
.footer-bottom{ margin-top:32px; padding-top:20px; border-top:1px solid rgba(255,255,255,.15); font-size:.8rem; color:#9BB4AB; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

@media (max-width:860px){
  .hero-grid, .tool-grid, .grid-3, .grid-2, .footer-grid{ grid-template-columns:1fr; }
  .gallery{ grid-template-columns:1fr 1fr; }
  .nav-links{ display:none; }
}
:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; }
@media (prefers-reduced-motion:reduce){ *{ animation:none !important; transition:none !important; } }