:root{--ink:#0b1220;--muted:#64748b;--paper:#f7f8fb;--card:#fff;--line:#e5e7eb;--navy:#07111f;--navy2:#10233f;--gold:#c9a227;--gold2:#f0d77a;--blue:#2563eb;--green:#0f9f6e;--danger:#b42318;--shadow:0 20px 50px rgba(2,8,23,.08);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img,svg{max-width:100%}.container{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(7,17,31,.94);backdrop-filter:blur(14px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}.nav{height:72px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em;font-size:20px}.brand-mark{width:38px;height:38px}.nav-links{display:flex;gap:18px;margin-left:auto;font-size:14px;color:#dbe4f2}.nav-links a:hover{color:var(--gold2)}.nav-search{position:relative}.nav-search input{width:250px;border:1px solid rgba(255,255,255,.16);border-radius:999px;background:rgba(255,255,255,.08);color:#fff;padding:10px 14px}.nav-search input::placeholder{color:#a7b3c8}.search-results{position:absolute;right:0;top:48px;width:min(420px,90vw);background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:8px;display:none;max-height:420px;overflow:auto}.search-results.active{display:block}.search-results a{display:block;padding:10px;border-radius:10px}.search-results a:hover{background:#f1f5f9}.hero{background:radial-gradient(circle at 80% 20%,rgba(201,162,39,.22),transparent 26%),linear-gradient(145deg,var(--navy),var(--navy2));color:#fff;padding:92px 0 76px;overflow:hidden}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(240,215,122,.35);background:rgba(240,215,122,.08);color:var(--gold2);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.hero h1{font-size:clamp(42px,7vw,76px);line-height:1.02;letter-spacing:-.055em;max-width:900px;margin:20px 0}.hero p{font-size:clamp(18px,2vw,22px);color:#c7d2e2;max-width:760px}.hero-search{margin-top:28px;display:flex;max-width:720px;background:#fff;padding:7px;border-radius:18px;box-shadow:0 18px 60px rgba(0,0,0,.2)}.hero-search input{border:0;outline:0;flex:1;font-size:16px;padding:13px 15px}.hero-search button{border:0;background:linear-gradient(135deg,var(--gold2),var(--gold));color:#241d06;font-weight:800;border-radius:12px;padding:0 20px}.stats{display:flex;gap:26px;flex-wrap:wrap;margin-top:30px;color:#aebdd0;font-size:14px}.stats strong{display:block;color:#fff;font-size:22px}.section{padding:64px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section h2{font-size:clamp(28px,4vw,42px);letter-spacing:-.04em;margin:0}.section-lead{color:var(--muted);max-width:700px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.category-card,.tool-card,.content-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(15,23,42,.035)}.category-card{padding:24px;transition:.2s}.category-card:hover,.tool-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#d2d8e3}.cat-icon{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#eef2ff,#fff7d6);display:grid;place-items:center;font-weight:900;color:#8a6d0c;margin-bottom:16px}.category-card h3,.tool-card h3{margin:0 0 7px;letter-spacing:-.02em}.category-card p,.tool-card p{margin:0;color:var(--muted);font-size:14px}.count{display:inline-block;margin-top:14px;color:#8a6d0c;font-weight:700;font-size:13px}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tool-card{padding:18px}.tool-card .category{font-size:12px;color:#8a6d0c;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.tool-card h3{font-size:17px;margin-top:7px}.cta{background:linear-gradient(135deg,#0d1b30,#172c4c);color:#fff;border-radius:30px;padding:44px;display:grid;grid-template-columns:1.4fr .6fr;align-items:center;gap:25px}.cta p{color:#c9d5e5}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:12px 18px;font-weight:800;border:1px solid transparent;cursor:pointer}.btn-gold{background:linear-gradient(135deg,var(--gold2),var(--gold));color:#261f09}.btn-soft{background:#f3f4f6;border-color:#e5e7eb}.breadcrumbs{font-size:13px;color:var(--muted);padding-top:26px}.page-hero{padding:34px 0 26px}.page-hero h1{font-size:clamp(34px,5vw,54px);line-height:1.08;letter-spacing:-.045em;margin:10px 0}.page-hero p{font-size:18px;color:var(--muted);max-width:760px}.calc-layout{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:26px;align-items:start}.calculator{background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px;box-shadow:var(--shadow)}.calculator h2{font-size:20px;margin:0 0 18px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-size:13px;font-weight:800;color:#334155}.input-wrap{display:flex;align-items:center;border:1px solid #cfd6e2;border-radius:13px;background:#fff;overflow:hidden}.input-wrap:focus-within{border-color:#b5901a;box-shadow:0 0 0 3px rgba(201,162,39,.13)}.input-wrap input,.input-wrap select{border:0;outline:0;padding:13px 12px;font:inherit;width:100%;background:transparent;color:var(--ink)}.unit{padding:0 12px;color:var(--muted);font-size:13px;white-space:nowrap}.calc-actions{display:flex;gap:10px;margin-top:18px}.result{margin-top:20px;padding:20px;border-radius:18px;background:linear-gradient(135deg,#07111f,#132746);color:#fff}.result small{display:block;color:#b7c5d9;text-transform:uppercase;letter-spacing:.08em;font-weight:800;font-size:11px}.result-value{font-size:clamp(28px,4vw,40px);font-weight:900;letter-spacing:-.03em;color:var(--gold2);overflow-wrap:anywhere}.result-unit{font-size:15px;color:#c8d4e4}.side-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.side-card h3{margin-top:0}.side-card ul{padding-left:18px;margin-bottom:0}.side-card li{margin:8px 0;color:#475569}.article{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:26px;padding:clamp(24px,4vw,44px)}.article h2{font-size:30px;letter-spacing:-.03em;margin-top:42px}.article h2:first-child{margin-top:0}.article h3{font-size:21px;margin-top:28px}.article p,.article li{color:#3f4d60}.formula{background:#f8fafc;border-left:4px solid var(--gold);padding:18px 20px;border-radius:0 14px 14px 0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:700;overflow:auto}.notice{background:#fffbeb;border:1px solid #f6e2a4;padding:16px 18px;border-radius:14px;color:#6b5208}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq summary{font-weight:800;cursor:pointer}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.related a{display:block;padding:14px;border-radius:14px;border:1px solid var(--line);background:#fff}.site-footer{margin-top:70px;background:#07111f;color:#c4d1e2;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}.site-footer h4{color:#fff}.site-footer a{display:block;color:#c4d1e2;margin:8px 0;font-size:14px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:20px;font-size:13px;color:#8798ae;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.category-tools{columns:3;column-gap:24px}.category-tools a{display:block;break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 15px;margin:0 0 10px}.static-page{max-width:860px}.static-page h1{font-size:48px;letter-spacing:-.04em}.static-page h2{margin-top:36px}.mobile-menu{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:24px}@media(max-width:900px){.nav-links{display:none}.nav-search{margin-left:auto}.grid{grid-template-columns:1fr 1fr}.tool-grid{grid-template-columns:1fr 1fr}.calc-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta{grid-template-columns:1fr}.category-tools{columns:2}}@media(max-width:620px){.nav{height:64px}.nav-search{display:none}.grid,.tool-grid,.fields,.related{grid-template-columns:1fr}.hero{padding:62px 0 52px}.hero-search{display:block;padding:8px}.hero-search button{width:100%;height:46px}.section{padding:44px 0}.calculator{padding:20px}.footer-grid{grid-template-columns:1fr}.category-tools{columns:1}.static-page h1{font-size:38px}}

/* Ultimate international edition */
:root{--lux:#d8b84c;--lux2:#ffe59a;--surface:#ffffff;--deep:#050b15}.global-strip{background:linear-gradient(90deg,#07111f,#122e54,#07111f);color:#dce9ff;font-size:13px}.global-strip .container{display:flex;justify-content:space-between;gap:14px;padding:8px 0}.lang-select{display:flex;gap:8px;flex-wrap:wrap}.lang-select a{opacity:.8}.lang-select a:hover,.lang-select a[aria-current=true]{opacity:1;color:#ffe59a}.mega-hero{background:radial-gradient(circle at 15% 20%,rgba(216,184,76,.18),transparent 34%),radial-gradient(circle at 85% 15%,rgba(37,99,235,.22),transparent 30%),linear-gradient(135deg,#040913,#071427 48%,#0d2442);color:white;padding:78px 0 64px;overflow:hidden}.mega-hero h1{font-size:clamp(42px,7vw,82px);line-height:.98;letter-spacing:-.055em;max-width:950px;margin:16px 0}.mega-hero p{font-size:clamp(17px,2.2vw,22px);max-width:820px;color:#c7d5e7}.lux-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,229,154,.35);background:rgba(216,184,76,.1);color:#ffe59a;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.metric{padding:16px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);border-radius:18px}.metric strong{display:block;font-size:24px;color:#ffe59a}.domain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.domain-card{background:#fff;border:1px solid #e5e7eb;border-radius:20px;padding:20px;box-shadow:0 16px 35px rgba(2,8,23,.06);transition:.2s transform,.2s box-shadow}.domain-card:hover{transform:translateY(-3px);box-shadow:0 20px 45px rgba(2,8,23,.1)}.domain-card .number{font-size:12px;font-weight:800;color:#8a6a0a;text-transform:uppercase}.converter-box{background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid #dfe5ee;border-radius:26px;padding:28px;box-shadow:0 24px 55px rgba(2,8,23,.09)}.converter-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.converter-box input{width:100%;font-size:22px;font-weight:700;padding:17px 18px;border:1px solid #cfd8e6;border-radius:14px}.converter-result{margin-top:18px;padding:20px;border-radius:18px;background:#071427;color:#fff}.converter-result strong{font-size:clamp(26px,5vw,44px);color:#ffe59a;word-break:break-word}.conversion-table{width:100%;border-collapse:collapse;margin:18px 0}.conversion-table th,.conversion-table td{text-align:left;padding:11px;border-bottom:1px solid #e6e9ef}.source-hubs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.source-hubs a,.link-chip{display:block;background:#fff;border:1px solid #e5e7eb;padding:12px 14px;border-radius:14px}.seo-note{border-left:4px solid #d8b84c;background:#fff9df;padding:16px 18px;border-radius:10px}.language-hero{padding:42px 0 24px;background:linear-gradient(180deg,#edf4ff,#f7f8fb)}html[dir=rtl] body{text-align:right}html[dir=rtl] .conversion-table th,html[dir=rtl] .conversion-table td{text-align:right}@media(max-width:900px){.domain-grid{grid-template-columns:repeat(2,1fr)}.metric-row{grid-template-columns:repeat(2,1fr)}.source-hubs{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.domain-grid,.converter-grid,.source-hubs{grid-template-columns:1fr}.mega-hero{padding:54px 0 44px}.metric-row{grid-template-columns:1fr 1fr}.global-strip .container{display:block}}