/* Saudi Home Energy — Arabic-first, dependency-free */
:root{
  --bg:#07161d;--bg2:#0b2029;--card:#0f2b35;--card2:#133642;--text:#f5fbfc;--muted:#b9ccd1;
  --line:rgba(255,255,255,.12);--accent:#55d6be;--accent2:#f3c969;--danger:#ff8a84;--shadow:0 18px 55px rgba(0,0,0,.28);
  --radius:22px;--max:1160px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 0,#123947 0,transparent 35%),linear-gradient(180deg,var(--bg),#081b22 52%,#06141a);color:var(--text);font-family:Tahoma,Arial,"Segoe UI",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img,svg{max-width:100%}button,input,select{font:inherit}.wrap{width:min(calc(100% - 32px),var(--max));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(7,22,29,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{min-height:72px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;white-space:nowrap}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#2ba8ca);color:#032026;font-weight:900;box-shadow:0 8px 25px rgba(85,214,190,.22)}.brand small{display:block;color:var(--muted);font-weight:500;font-size:11px;line-height:1.2}.nav-links{display:flex;align-items:center;gap:5px;margin-inline-start:auto}.nav-links a{padding:10px 12px;border-radius:11px;color:var(--muted);font-size:14px}.nav-links a:hover,.nav-links a:focus-visible{background:rgba(255,255,255,.07);color:var(--text)}.lang{border:1px solid var(--line)!important;color:var(--text)!important}.menu-btn{display:none;margin-inline-start:auto;background:transparent;border:1px solid var(--line);color:var(--text);padding:9px 12px;border-radius:10px}.hero{padding:72px 0 36px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#cdebe6;background:rgba(85,214,190,.11);border:1px solid rgba(85,214,190,.25);padding:7px 11px;border-radius:999px;font-size:13px}.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.08;margin:18px 0 16px;letter-spacing:-1.6px}.hero h1 span{color:var(--accent)}.hero p{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:14px;padding:13px 18px;font-weight:800;border:1px solid transparent;cursor:pointer}.btn-primary{background:var(--accent);color:#032025}.btn-primary:hover{filter:brightness(1.05)}.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.04)}.btn-ghost:hover{background:rgba(255,255,255,.08)}.hero-card{background:linear-gradient(160deg,rgba(19,54,66,.96),rgba(8,28,36,.94));border:1px solid var(--line);border-radius:28px;padding:25px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;width:190px;height:190px;border-radius:50%;background:rgba(85,214,190,.12);inset:-60px auto auto -60px;filter:blur(2px)}.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative}.metric{padding:18px;background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:16px}.metric strong{font-size:25px;display:block}.metric small{color:var(--muted)}.source-note{font-size:12px;color:var(--muted);margin-top:15px;position:relative}.section{padding:54px 0}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section-head h2,.content h1{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:0}.section-head p{color:var(--muted);max-width:620px;margin:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:linear-gradient(180deg,rgba(16,47,58,.92),rgba(10,31,39,.94));border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 9px 30px rgba(0,0,0,.12)}.card:hover{border-color:rgba(85,214,190,.3)}.card .icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:rgba(85,214,190,.12);color:var(--accent);font-size:21px}.card h3{font-size:20px;margin:15px 0 8px}.card p{color:var(--muted);margin:0}.card .go{display:inline-block;color:var(--accent);font-weight:800;margin-top:12px}.calc-shell{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:start}.panel{background:linear-gradient(180deg,rgba(16,47,58,.95),rgba(8,29,37,.95));border:1px solid var(--line);border-radius:22px;padding:24px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:700;font-size:14px}.field small{color:var(--muted);font-size:12px}.field input,.field select{width:100%;background:#071c24;color:var(--text);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:12px 13px;outline:none}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(85,214,190,.12)}.checkrow{display:flex;align-items:center;gap:9px;padding:10px 0}.checkrow input{width:18px;height:18px;accent-color:var(--accent)}.result{position:sticky;top:94px}.result-kicker{color:var(--muted);font-size:13px}.result-number{font-size:clamp(42px,7vw,68px);font-weight:900;line-height:1.05;margin:7px 0;color:var(--accent)}.result-sub{font-size:20px;font-weight:800}.result-list{display:grid;gap:9px;margin:18px 0}.result-row{display:flex;justify-content:space-between;gap:15px;padding:10px 0;border-bottom:1px dashed var(--line)}.result-row span:first-child{color:var(--muted)}.notice{border:1px solid rgba(243,201,105,.28);background:rgba(243,201,105,.08);border-radius:14px;padding:13px 15px;color:#f9e9bd;font-size:13px}.good{border-color:rgba(85,214,190,.28);background:rgba(85,214,190,.08);color:#d8f6ef}.breadcrumb{display:flex;gap:7px;flex-wrap:wrap;color:var(--muted);font-size:13px;padding-top:22px}.breadcrumb a:hover{color:var(--accent)}.content{padding:28px 0 62px}.content .lead{font-size:20px;color:var(--muted);max-width:850px}.prose{max-width:860px}.prose h2{font-size:29px;line-height:1.25;margin-top:38px}.prose h3{font-size:21px;margin-top:25px}.prose p,.prose li{color:#d7e5e8}.prose ul{padding-inline-start:22px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;margin:20px 0}.data-table{width:100%;border-collapse:collapse;min-width:600px;background:rgba(255,255,255,.025)}.data-table th,.data-table td{text-align:start;padding:13px 15px;border-bottom:1px solid var(--line)}.data-table th{background:rgba(85,214,190,.08);color:#dff9f4}.data-table tr:last-child td{border-bottom:0}.faq{display:grid;gap:10px}.faq details{background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.faq summary{cursor:pointer;font-weight:800}.faq p{color:var(--muted)}.pill-list{display:flex;flex-wrap:wrap;gap:8px}.pill{border:1px solid var(--line);border-radius:999px;padding:7px 11px;color:var(--muted);font-size:13px}.ad-slot{min-height:120px;border:1px dashed rgba(255,255,255,.14);display:grid;place-items:center;color:#79939a;border-radius:16px;margin:28px 0;font-size:12px}.footer{border-top:1px solid var(--line);padding:35px 0 26px;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:24px}.footer h4{color:var(--text);margin:0 0 10px}.footer a{display:block;margin:6px 0}.footer a:hover{color:var(--accent)}.copyright{margin-top:25px;padding-top:18px;border-top:1px solid var(--line);font-size:12px}.source-list{display:grid;gap:12px}.source-item{padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03)}.source-item strong{display:block}.source-item a{color:var(--accent);word-break:break-all}.callout{padding:18px 20px;border-inline-start:4px solid var(--accent);background:rgba(85,214,190,.07);border-radius:12px;margin:24px 0}.updated{color:var(--muted);font-size:13px}.skip{position:absolute;top:-80px;inset-inline-start:12px;background:#fff;color:#000;padding:8px 12px;z-index:1000}.skip:focus{top:12px}

/* Production UX refinements */
.ad-slot{display:none;min-height:0;border:0;margin:0;font-size:0}.ad-slot.is-active{display:block;min-height:120px;margin:28px 0;border-radius:16px}
.calc-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}.action-btn{appearance:none;border:1px solid var(--line);background:rgba(255,255,255,.045);color:var(--text);border-radius:11px;padding:9px 13px;cursor:pointer;font-weight:700;font-size:13px}.action-btn:hover{background:rgba(255,255,255,.09);border-color:rgba(85,214,190,.35)}.result.is-worse .result-number{color:var(--danger)}.result.is-neutral .result-number{color:var(--accent2)}
.btn:focus-visible,.menu-btn:focus-visible,.action-btn:focus-visible,.pill:focus-visible,.card:focus-visible{outline:3px solid rgba(85,214,190,.4);outline-offset:3px}
@media(max-width:900px){.hero-grid,.calc-shell{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.result{position:static}.nav-links{display:none;position:absolute;top:72px;inset-inline:16px;background:#0a212a;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.menu-btn{display:block}.nav-links a{padding:12px}.footer-grid{grid-template-columns:1fr 1fr}.hero{padding-top:48px}}
@media(max-width:620px){.wrap{width:min(calc(100% - 22px),var(--max))}.hero h1{letter-spacing:-.6px}.cards,.field-grid,.metric-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.panel,.hero-card,.card{padding:18px}.section{padding:38px 0}.footer-grid{grid-template-columns:1fr}.hero-actions .btn{width:100%}.calc-actions{display:grid;grid-template-columns:1fr 1fr}.action-btn{width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}