:root{--b:#2563eb;--b2:#1d4ed8;--ink:#0f172a;--bg:#fff;--fg:#0f172a;--muted:#64748b;--line:#e2e8f0;--soft:#f8fafc;--soft-blue:#eff6ff;--card:#fff;--green:#16a34a;--shadow:0 18px 60px rgba(37,99,235,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--fg);line-height:1.58}.dark{--bg:#020617;--fg:#f8fafc;--muted:#94a3b8;--line:#1e293b;--soft:#0f172a;--soft-blue:#0b1635;--card:#0f172a}a{color:inherit;text-decoration:none}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.article{max-width:820px}.wide-article{max-width:1050px}.header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.navrow{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:21px;font-weight:900;letter-spacing:-.03em}.brand i{font-style:normal;color:var(--b)}.nav{display:flex;gap:23px;font-size:14px;font-weight:750;align-items:center}.nav a:hover{color:var(--b)}.nav-actions{display:flex;gap:8px}.iconbtn{border:1px solid var(--line);background:var(--card);color:var(--fg);width:42px;height:42px;border-radius:12px;cursor:pointer;font-size:17px}.mobile{display:none;padding:12px 0 18px;border-top:1px solid var(--line)}.mobile a{display:block;padding:9px 0;font-weight:750}.breadcrumbs{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:22px}.breadcrumbs a:hover{color:var(--b)}.hero{background:linear-gradient(180deg,#eff6ff 0%,var(--bg) 100%);padding:70px 0 90px;overflow:hidden}.dark .hero{background:linear-gradient(180deg,#0b1635 0%,var(--bg) 100%)}.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:48px;align-items:center}.pill{display:inline-flex;padding:7px 12px;border:1px solid #bfdbfe;border-radius:999px;font-size:14px;font-weight:750;color:#1d4ed8;background:#fff}.dark .pill{background:#0f172a;color:#93c5fd;border-color:#1e3a8a}h1{font-size:clamp(42px,6vw,66px);line-height:1.03;letter-spacing:-.045em;margin:20px 0}.article h1,.wide-article h1{font-size:clamp(38px,5vw,52px)}h2{letter-spacing:-.025em}.blue{color:var(--b)}.lead{font-size:19px;color:var(--muted);max-width:700px}.muted{color:var(--muted)}.trustline{font-size:14px;margin-top:20px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:13px;padding:13px 18px;font-weight:800;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer}.btn:hover{transform:translateY(-1px)}.btn.primary{background:var(--b);border-color:var(--b);color:#fff}.visual{min-height:370px;border:1px solid #dbeafe;border-radius:36px;background:linear-gradient(145deg,#fff,#dbeafe 56%,#93c5fd);position:relative;overflow:hidden;box-shadow:var(--shadow)}.dark .visual{background:linear-gradient(145deg,#172554,#0f172a 56%,#1e3a8a);border-color:#1e293b}.visual:before{content:"";position:absolute;width:330px;height:330px;border-radius:50%;background:rgba(37,99,235,.14);right:-70px;bottom:-80px}.visual-orb{position:absolute;width:180px;height:180px;border-radius:50%;background:linear-gradient(145deg,#60a5fa,#2563eb);right:62px;top:52px;box-shadow:0 30px 80px rgba(37,99,235,.32)}.visual-orb:after{content:"";position:absolute;width:110px;height:110px;border-radius:50%;background:#f8fafc;left:-85px;bottom:-100px;box-shadow:145px 35px 0 24px rgba(255,255,255,.8)}.dark .visual-orb:after{background:#cbd5e1;box-shadow:145px 35px 0 24px rgba(203,213,225,.65)}.visual-copy{position:absolute;left:34px;bottom:36px;display:flex;flex-direction:column;gap:4px}.visual-copy b{font-size:27px;letter-spacing:-.03em}.visual-copy span{color:#475569}.dark .visual-copy span{color:#cbd5e1}.calc-wrap{margin-top:-42px;position:relative;z-index:4}.compact+.calc-wrap{margin-top:0}.calc{border:1px solid #dbeafe;border-radius:28px;background:var(--card);box-shadow:var(--shadow);overflow:hidden}.dark .calc{border-color:#1e3a8a}.calc-head{background:linear-gradient(90deg,var(--b2),var(--b));color:#fff;padding:20px 26px;display:flex;justify-content:space-between;align-items:center;gap:20px}.calc-head h2{margin:2px 0;font-size:27px}.calc-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.13em;font-weight:850;opacity:.8}.verified{border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:7px 11px;font-size:12px;white-space:nowrap}.calc-grid{display:grid;grid-template-columns:1fr 1.25fr .82fr .82fr auto;gap:14px;padding:24px;align-items:end}.field label{display:block;font-size:13px;font-weight:800;margin-bottom:7px}.field input,.field select{width:100%;border:1px solid var(--line);background:var(--bg);color:var(--fg);border-radius:12px;padding:13px;font:inherit}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.metric{padding:20px;border-right:1px solid var(--line)}.metric:last-child{border-right:0}.metric small{display:block;color:var(--muted);font-weight:800;text-transform:uppercase;font-size:11px;letter-spacing:.05em}.metric strong{display:block;font-size:22px;margin-top:7px;letter-spacing:-.03em}.note{padding:16px 24px;background:var(--soft);color:var(--muted);font-size:14px}.section{padding:68px 0}.section.compact{padding-bottom:26px}.section.alt{background:var(--soft)}.eyebrow{color:var(--b);text-transform:uppercase;letter-spacing:.16em;font-weight:900;font-size:13px}.section h2{font-size:34px;line-height:1.15;margin:8px 0 12px}.article h2,.wide-article h2{font-size:28px;margin-top:36px}.article p,.article li,.wide-article p,.wide-article li{font-size:17px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}.cards-4{grid-template-columns:repeat(4,1fr)}.card{border:1px solid var(--line);border-radius:18px;background:var(--card);padding:22px}.card[href]:hover{border-color:#93c5fd;box-shadow:0 12px 34px rgba(37,99,235,.08);transform:translateY(-2px)}.card h3{margin:8px 0}.card p{color:var(--muted);font-size:15px;margin-bottom:0}.card-icon{width:42px;height:42px;border-radius:12px;background:var(--soft-blue);display:grid;place-items:center;color:var(--b);font-weight:900}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px}.section-head>a{color:var(--b);font-weight:750;font-size:14px}.snapshot{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}.snapshot>div{background:var(--card);border:1px solid var(--line);padding:20px;border-radius:17px}.snapshot small,.snapshot span{display:block;color:var(--muted)}.snapshot strong{display:block;font-size:29px;margin:6px 0;letter-spacing:-.04em}.snapshot span{font-size:13px}.year-links{display:grid;grid-template-columns:repeat(12,1fr);gap:8px;margin-top:25px}.year-links a{border:1px solid var(--line);border-radius:10px;padding:11px 4px;text-align:center;font-weight:800;background:var(--card)}.year-links a:hover{background:var(--soft-blue);color:var(--b)}.table-scroll{overflow:auto;border-radius:16px;margin-top:24px}.table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}.table th,.table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.table th{background:var(--soft);font-size:13px}.table tr:last-child td{border-bottom:0}.table a{color:var(--b)}.callout{border-left:4px solid var(--b);background:var(--soft-blue);padding:18px 20px;border-radius:10px;margin:24px 0}.source-box{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid var(--line);border-radius:16px;padding:17px 18px;margin-top:30px;background:var(--soft)}.source-box small{color:var(--muted)}.source-link{font-size:13px;color:var(--b);font-weight:850;white-space:nowrap}.related{display:grid;gap:9px;margin:24px 0}.related a{border:1px solid var(--line);padding:13px 15px;border-radius:12px;font-weight:750}.related a:hover{color:var(--b);border-color:#93c5fd}.stat-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.big-stat{border:1px solid var(--line);border-radius:19px;padding:23px;background:var(--card)}.big-stat span,.big-stat small{display:block;color:var(--muted)}.big-stat strong{display:block;font-size:34px;letter-spacing:-.04em;margin:4px 0}.fact-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0}.fact-row>div{border:1px solid var(--line);border-radius:18px;padding:20px}.fact-row small,.fact-row span{display:block;color:var(--muted)}.fact-row strong{display:block;font-size:25px;margin:5px 0}.tool-card{margin-top:22px}.form-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;align-items:end}.full{grid-column:1/-1}.inline-result{background:var(--soft);border:1px solid var(--line);border-radius:13px;padding:14px 16px;font-weight:700;min-height:52px}.period-row{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;margin-bottom:13px}.remove-period{width:42px;height:47px;border:1px solid var(--line);border-radius:11px;background:var(--card);color:var(--fg);font-size:21px;cursor:pointer}.tool-actions{display:flex;gap:10px;margin-top:16px}.tool-result{margin:20px 0 0}.buy-grid{display:grid;grid-template-columns:1fr auto 1.4fr;gap:14px;align-items:end}.amount-hero{border:1px solid #bfdbfe;background:linear-gradient(135deg,#eff6ff,#fff);border-radius:22px;padding:26px;margin:26px 0}.dark .amount-hero{background:linear-gradient(135deg,#0b1635,#0f172a);border-color:#1e3a8a}.amount-hero span,.amount-hero small{display:block;color:var(--muted)}.amount-hero strong{display:block;color:var(--b);font-size:46px;letter-spacing:-.05em;margin:4px 0}.source-list{list-style:none;padding:0}.source-list li{border-bottom:1px solid var(--line);padding:12px 0}.source-list a{color:var(--b);font-weight:700}.footer{background:#020617;color:#cbd5e1;padding:52px 0 28px;margin-top:25px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}.footer h3{color:white}.footer a{display:block;margin:8px 0;color:#cbd5e1}.footer a:hover{color:#fff}.legal{margin-top:30px;padding-top:20px;border-top:1px solid #1e293b;color:#64748b;font-size:13px}.hamb{display:none}@media(max-width:1000px){.nav{display:none}.hamb{display:inline-block}.hero-grid{grid-template-columns:1fr}.visual{min-height:300px}.calc-grid{grid-template-columns:1fr 1fr}.calc-grid .btn{grid-column:1/-1}.result-grid{grid-template-columns:1fr 1fr}.cards-4{grid-template-columns:1fr 1fr}.snapshot{grid-template-columns:1fr 1fr}.year-links{grid-template-columns:repeat(6,1fr)}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/-1}.mobile.open{display:block}}@media(max-width:720px){.wrap{width:min(100% - 22px,1180px)}.hero{padding-top:42px}.calc-head{align-items:flex-start;flex-direction:column}.verified{white-space:normal}.calc-grid,.result-grid,.cards,.cards-4,.snapshot,.stat-pair,.fact-row,.form-grid-3,.buy-grid{grid-template-columns:1fr}.metric{border-right:0;border-bottom:1px solid var(--line)}.metric:last-child{border-bottom:0}.full{grid-column:auto}.section{padding:48px 0}.article h1,.wide-article h1{font-size:36px}.section-head{align-items:flex-start;flex-direction:column}.year-links{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}.source-box{align-items:flex-start;flex-direction:column}.period-row{grid-template-columns:1fr}.remove-period{width:100%;height:40px}.tool-actions{flex-direction:column}.visual{min-height:250px}.visual-orb{width:130px;height:130px;right:35px;top:35px}.visual-copy{left:24px;bottom:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.card{transition:none}}
.guide-list{padding-left:1.35rem}.guide-list li{margin:.55rem 0}.faq-list{display:grid;gap:12px;margin:22px 0 30px}.faq-item{border:1px solid var(--line);background:var(--card);border-radius:15px;padding:17px 18px}.faq-item h3{font-size:17px;margin:0 0 6px}.faq-item p{margin:0;color:var(--muted)}.guide-source-stack{display:grid;gap:10px;margin-top:30px}.guide-source-stack .source-box{margin-top:0}.seo-hub{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:24px 0}.seo-hub a{border:1px solid var(--line);background:var(--card);border-radius:15px;padding:17px;font-weight:800}.seo-hub a span{display:block;color:var(--muted);font-weight:500;font-size:14px;margin-top:4px}@media(max-width:720px){.seo-hub{grid-template-columns:1fr}}

/* v14 editorial depth */
.editorial-depth{margin-top:2.25rem}
.editorial-depth>.callout:first-child{margin-bottom:1.5rem}
.editorial-depth .cards{margin:1rem 0 1.5rem}
.editorial-depth .related{margin-top:1.25rem}

/* Keep the long mobile navigation usable within the visible viewport. */
@media(max-width:1000px){
  .mobile.open{
    max-height:calc(100vh - 68px);
    max-height:calc(100dvh - 68px);
    overflow-y:auto;
    overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch;
    scrollbar-gutter:stable;
    padding-bottom:max(18px,env(safe-area-inset-bottom));
  }
}

/* Prevent long Bulgarian compounds from widening article pages on phones. */
@media(max-width:720px){
  .article h1,.wide-article h1{
    overflow-wrap:anywhere;
  }
}

/* Form controls: consistent select/input sizing across browsers (Safari ignores padding on native selects) */
.field input,.field select{box-sizing:border-box;height:50px;line-height:1.2}
.field select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;padding-right:42px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:12px 8px}
.field select::-ms-expand{display:none}
.field select:focus,.field input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.25)}
.field select option{background:var(--bg);color:var(--fg)}
.dark .field input,.dark .field select{color-scheme:dark}