/* ============================================================
   Age Calculator — light body / dark footer (matched to reference)
   Body: off-white #f7f8fa · cards #fff · links #1453d6 · stars #f5a623
   Footer: near-black #0a0b0d · green status · flag grid
   ============================================================ */
:root{
  --bg:#f7f8fa; --surface:#ffffff; --surface-2:#fbfcfd;
  --ink:#11161f; --ink-2:#1a1f2e; --text:#44505f; --muted:#8a93a3; --faint:#aab2bf;
  --blue:#1453d6; --blue-2:#1a6dff; --blue-soft:rgba(20,83,214,.08);
  --amber:#f5a623; --green:#16a34a; --green-2:#22c55e;
  --line:#e6e8ec; --line-2:#eef0f3;
  --foot:#0a0b0d; --foot-2:#101216; --foot-txt:#9aa3b2; --foot-line:#23262d; --foot-h:#cfd5df;
  --maxw:1180px;
  --disp:"Bricolage Grotesque",ui-sans-serif,system-ui,Georgia,serif;
  --body:"Manrope",ui-sans-serif,system-ui,"Segoe UI",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --r:16px; --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.05);
  --shadow-hover:0 6px 14px rgba(16,24,40,.07),0 18px 44px rgba(20,83,214,.10);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);color:var(--text);line-height:1.65;background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}a{color:var(--blue)}
.wrap{width:min(100% - 40px,var(--maxw));margin-inline:auto}.narrow{max-width:760px}
h1,h2,h3{font-family:var(--disp);color:var(--ink);line-height:1.08;letter-spacing:-.02em;margin:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--blue);color:#fff;padding:10px 14px;border-radius:0 0 8px 0;z-index:100}.skip-link:focus{left:0}

/* ---------- ambient (subtle on light) ---------- */
.bg-ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bg-grid{position:absolute;inset:-2px;background-image:linear-gradient(rgba(20,83,214,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,83,214,.045) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(120% 80% at 75% -5%,#000 25%,transparent 72%);-webkit-mask-image:radial-gradient(120% 80% at 75% -5%,#000 25%,transparent 72%)}
.bg-glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;will-change:transform}
.bg-glow--a{width:520px;height:520px;right:-140px;top:-160px;background:radial-gradient(circle,rgba(26,109,255,.16),transparent 65%);animation:breathe 13s ease-in-out infinite}
.bg-glow--b{width:480px;height:480px;left:-160px;top:220px;background:radial-gradient(circle,rgba(245,166,35,.12),transparent 65%);animation:breathe 16s ease-in-out infinite reverse}
@keyframes breathe{0%,100%{transform:scale(1) translate(0,0)}50%{transform:scale(1.12) translate(18px,16px)}}

/* ---------- header (light, sticky) ---------- */
.site-head{position:sticky;top:0;z-index:40;backdrop-filter:saturate(140%) blur(10px);background:rgba(247,248,250,.82);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:18px;padding:13px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-family:var(--disp);color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;color:#fff;background:linear-gradient(160deg,var(--blue-2),var(--blue));box-shadow:0 6px 16px rgba(20,83,214,.3)}
.brand-name{font-size:16px;letter-spacing:-.01em}
.head-nav{margin-inline-start:auto;display:flex;gap:4px}
.head-nav a{padding:8px 12px;border-radius:9px;text-decoration:none;color:var(--text);font-size:14px;font-weight:600;transition:.18s}
.head-nav a:hover{color:var(--blue);background:var(--blue-soft)}
.lang-switch{position:relative}
.lang-cur{display:flex;align-items:center;gap:6px;cursor:pointer;font:inherit;font-weight:700;font-size:13px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 12px;transition:.18s;box-shadow:var(--shadow)}
.lang-cur:hover{border-color:var(--blue);color:var(--blue)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);list-style:none;margin:0;padding:6px;min-width:176px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 24px 60px rgba(16,24,40,.16);z-index:50}
.lang-menu[hidden]{display:none}
.lang-menu button{display:flex;width:100%;gap:10px;align-items:center;cursor:pointer;font:inherit;font-size:14px;color:var(--ink);background:transparent;border:0;border-radius:9px;padding:9px 10px;text-align:start}
.lang-menu button:hover{background:var(--blue-soft);color:var(--blue)}.lang-menu .flag{font-size:16px}

/* ---------- shared type ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;letter-spacing:.16em;text-transform:uppercase;font-size:12px;color:var(--blue);margin:0 0 14px;font-weight:700}
.eyebrow .dot-i{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 3px rgba(245,166,35,.18)}
.sec-h{font-weight:800;font-size:clamp(25px,3.6vw,40px);margin-bottom:18px;color:var(--ink)}
.prose{color:var(--text);font-size:clamp(15px,1.2vw,17px);max-width:64ch}.prose + h3{margin-top:30px}
h3{font-size:clamp(18px,1.8vw,22px);color:var(--ink);margin-bottom:8px}
code{font-family:var(--mono);background:var(--line-2);color:var(--ink-2);padding:2px 7px;border-radius:6px;font-size:.92em}

/* ---------- hero / calculator ---------- */
.hero{padding:clamp(42px,7vw,86px) 0 clamp(30px,5vw,58px);position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(26px,4vw,56px);align-items:center}
.hero-h1{font-weight:800;font-size:clamp(40px,6.6vw,76px);margin:0 0 18px;color:var(--ink)}
.hero-lead{color:var(--text);font-size:clamp(15px,1.4vw,19px);max-width:48ch;margin:0 0 22px}
.hero-trust{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0}
.hero-trust li{font-size:12.5px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 13px;font-weight:600;box-shadow:var(--shadow)}
.hero-trust li::before{content:"✓ ";color:var(--green)}

.calc-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(18px,2.4vw,26px);display:grid;gap:14px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:box-shadow .25s,border-color .25s}
.calc-card:hover{box-shadow:var(--shadow-hover)}
.calc-card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--blue),var(--amber))}
.calc-card-h{display:flex;align-items:center;gap:7px;margin:-2px 0 2px}
.cc-dot{width:11px;height:11px;border-radius:50%;background:#e3e6ea}.cc-dot.a{background:#f5a623}.cc-dot.b{background:#22c55e}
.cc-title{margin-inline-start:8px;font-size:12px;color:var(--muted);font-weight:700;letter-spacing:.04em}
.field{display:grid;gap:7px;font-size:13px;color:var(--text);font-weight:600}
.field input{font:inherit;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);border-radius:11px;padding:13px 14px;transition:.18s}
.field input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft);background:#fff}
.btn-primary{font:inherit;font-weight:800;cursor:pointer;border:0;border-radius:12px;padding:15px;color:#fff;background:linear-gradient(180deg,var(--blue-2),var(--blue));box-shadow:0 10px 24px rgba(20,83,214,.28);transition:transform .12s,box-shadow .2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,83,214,.36)}.btn-primary:active{transform:translateY(0)}
.btn-ghost{font:inherit;cursor:pointer;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 18px;font-weight:600;transition:.18s}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.form-msg{margin:0;min-height:18px;font-size:13px;color:#dc2626}

/* result */
.result{margin-top:clamp(26px,4vw,42px);animation:rise .5s ease both}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.asof{margin:0 0 18px;color:var(--muted);font-size:13px}.asof b{color:var(--ink)}
.primary{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.secondary{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.unit{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:center;box-shadow:var(--shadow);transition:transform .18s,border-color .2s,box-shadow .2s}
.unit:hover{transform:translateY(-4px);border-color:rgba(20,83,214,.4);box-shadow:var(--shadow-hover)}
.unit .val{display:block;font-weight:800;font-size:clamp(26px,4vw,40px);line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.unit.big .val{font-size:clamp(44px,8.5vw,80px);color:var(--ink)}
.unit.big:nth-child(1) .val{color:var(--blue)}
.unit .label{display:block;margin-top:9px;text-transform:uppercase;letter-spacing:.14em;font-size:11px;color:var(--muted);font-weight:700}
.mono{font-family:var(--mono)}
.alive{margin-top:18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--shadow)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--green-2);box-shadow:0 0 0 0 rgba(34,197,94,.5);animation:pulse 1.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.45)}70%{box-shadow:0 0 0 11px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
.alive-num{font-size:clamp(20px,3vw,30px);font-weight:700;color:var(--ink)}.alive-lbl{color:var(--muted);font-size:13px}
.countdown{margin-top:14px;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);padding:14px 18px}
.cd-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:700}
.cd-clock{font-size:clamp(18px,2.4vw,26px);color:var(--blue);font-weight:700}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.chip{display:flex;flex-direction:column;gap:3px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 15px;min-width:128px;box-shadow:var(--shadow);transition:.18s}
.chip:hover{border-color:rgba(245,166,35,.5);transform:translateY(-3px)}
.chip i{font-style:normal;font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:700}.chip b{font-size:18px;font-variant-numeric:tabular-nums;color:var(--ink)}
.copy-btn{margin-top:18px}

/* ---------- how / explain / method ---------- */
.how{padding:clamp(42px,6vw,80px) 0;border-top:1px solid var(--line)}
.how-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(24px,4vw,52px);align-items:center}
.ticks{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:10px}
.ticks li{position:relative;padding-inline-start:28px;color:var(--ink);font-weight:500}
.ticks li::before{content:"";position:absolute;inset-inline-start:0;top:.35em;width:16px;height:16px;border-radius:5px;background:var(--blue-soft);border:1px solid rgba(20,83,214,.3)}
.ticks li::after{content:"✓";position:absolute;inset-inline-start:3px;top:.12em;color:var(--blue);font-size:12px;font-weight:800}
.how figure{margin:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.ph{display:grid;place-items:center;min-height:240px;color:var(--muted)}
.explain{padding:clamp(42px,6vw,80px) 0;border-top:1px solid var(--line)}
.method{padding:clamp(42px,6vw,80px) 0;border-top:1px solid var(--line);background:linear-gradient(180deg,transparent,rgba(20,83,214,.03))}
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,52px);align-items:center}
.sources{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.sources li{display:flex;flex-direction:column;gap:2px;border:1px solid var(--line);border-radius:14px;padding:16px 18px;background:#fff;box-shadow:var(--shadow);transition:.2s}
.sources li:hover{border-color:rgba(20,83,214,.4);transform:translateX(4px);box-shadow:var(--shadow-hover)}
.sources b{font-family:var(--disp);font-size:18px;color:var(--ink)}.sources span{color:var(--muted);font-size:13px}

/* ---------- reviews (matched) ---------- */
.reviews{padding:clamp(42px,6vw,80px) 0;border-top:1px solid var(--line)}
.reviews-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:24px}.reviews-head .sec-h{margin:0}
.reviews-badge{font-size:13px;color:var(--text);background:var(--blue-soft);border:1px solid rgba(20,83,214,.18);border-radius:999px;padding:7px 14px;font-weight:600}
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.review{border:1px solid var(--line);border-radius:var(--r);padding:22px;background:#fff;box-shadow:var(--shadow);transition:.2s}
.review:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.review-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.review-name{font-weight:800;color:var(--ink)}.stars{color:var(--amber);letter-spacing:2px;font-size:15px}
.review-text{color:var(--text);margin:14px 0 10px;font-style:italic}.review-meta{color:var(--muted);font-size:12px;margin:0}

/* ---------- faq (matched: blue questions, hairline rules) ---------- */
.faq{padding:clamp(42px,6vw,80px) 0;border-top:1px solid var(--line)}.faq-list{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--blue-2);padding:20px 0;list-style:none;font-size:clamp(16px,1.5vw,19px);display:flex;justify-content:space-between;gap:16px;transition:color .18s}
.faq-item summary:hover{color:var(--blue)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--blue-2);font-weight:400;font-size:24px;line-height:1;transition:transform .2s}
.faq-item[open] summary::after{content:"–"}.faq-item p{color:var(--text);margin:0 0 20px}

/* ---------- footer (dark, matched) ---------- */
.site-foot{background:var(--foot);color:var(--foot-txt);margin-top:24px;padding-top:26px}
.foot-quick{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-bottom:22px;border-bottom:1px solid var(--foot-line)}
.fq-label{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#6b7280;font-weight:700}
.fq-pills{display:flex;flex-wrap:wrap;gap:8px}
.fq-pills a{text-decoration:none;color:var(--foot-txt);font-size:13px;border:1px solid var(--foot-line);border-radius:999px;padding:7px 14px;transition:.18s}
.fq-pills a:hover{color:#fff;border-color:#3a3f49;background:var(--foot-2)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:34px;padding:40px 0}
.foot-brand{font-family:var(--disp);font-weight:800;font-size:15px;letter-spacing:.04em;color:var(--foot-h);margin:0 0 14px;text-transform:uppercase}
.foot-desc{color:var(--foot-txt);font-size:13.5px;max-width:34ch;line-height:1.7}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.badges span{font-size:11px;color:var(--foot-txt);border:1px solid var(--foot-line);border-radius:7px;padding:5px 9px;font-weight:600}
.mt{margin-top:24px}
.method-box{margin-top:18px;border:1px solid var(--foot-line);border-radius:14px;padding:18px;background:var(--foot-2)}
.mb-h{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-2);margin:0 0 12px;font-weight:700}
.mb-name{color:#fff;font-weight:800;font-size:16px;margin:0}.mb-role{color:var(--foot-txt);font-size:13px;margin:2px 0 14px}
.mb-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--foot-line);display:grid;gap:12px;padding-top:14px}
.mb-list li{display:flex;flex-direction:column;gap:1px}
.mb-list b{color:var(--foot-h);font-size:13.5px}.mb-list span{color:#6b7280;font-size:12px}
.foot-col h3{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#6b7280;margin-bottom:16px;font-family:var(--body);font-weight:700}
.foot-col ul{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.foot-col a{text-decoration:none;color:var(--foot-txt);font-size:14px;transition:.18s}.foot-col a:hover{color:#fff}
.foot-col a.accent{color:var(--blue-2);font-weight:700}
.flags{grid-template-columns:1fr 1fr;gap:8px}
.flags button{display:flex;gap:9px;align-items:center;cursor:pointer;font:inherit;font-size:13px;color:var(--foot-txt);background:var(--foot-2);border:1px solid var(--foot-line);border-radius:10px;padding:9px 11px;transition:.18s}
.flags button:hover{border-color:#3a3f49;color:#fff}
.status{display:flex;align-items:center;gap:11px;background:rgba(34,197,94,.07);border:1px solid rgba(34,197,94,.22);border-radius:12px;padding:13px 15px}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green-2);box-shadow:0 0 0 0 rgba(34,197,94,.5);animation:pulse 1.6s infinite;flex:none}
.st-txt{display:flex;flex-direction:column;gap:2px}.st-txt b{color:var(--green-2);font-size:13px}.st-txt small{color:var(--foot-txt);font-size:12px}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 30px;border-top:1px solid var(--foot-line);color:#6b7280;font-size:13px}
.foot-legal{display:flex;gap:20px}.foot-legal a{color:var(--foot-txt);text-decoration:none}.foot-legal a:hover{color:#fff}

/* ---------- to top + reveal ---------- */
.to-top{position:fixed;right:22px;bottom:22px;z-index:45;width:46px;height:46px;border-radius:50%;cursor:pointer;display:grid;place-items:center;color:#fff;background:linear-gradient(180deg,var(--blue-2),var(--blue));border:0;box-shadow:0 12px 30px rgba(20,83,214,.4);transition:transform .2s,opacity .2s}
.to-top:hover{transform:translateY(-3px)}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:980px){.hero-grid,.how-grid,.method-grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr 1fr}.reviews-grid{grid-template-columns:1fr}.head-nav{display:none}}
@media (max-width:560px){.primary,.secondary{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{animation:none !important;scroll-behavior:auto !important}.reveal{opacity:1;transform:none}}

/* ---------- RTL (Arabic / Urdu) ---------- */
html[dir="rtl"] body{font-family:"Noto Kufi Arabic",var(--body)}
html[dir="rtl"] .head-nav{margin-inline-start:0;margin-inline-end:auto}
html[dir="rtl"] .lang-menu{right:auto;left:0}