:root{--blue:#0b63ce;--blue2:#084f9f;--ink:#10213d;--muted:#5d6b7e;--line:#dce6f2;--soft:#f5f9fd;--green:#19a663;--shadow:0 10px 30px rgba(26,61,99,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:white;line-height:1.55}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;background:rgba(255,255,255,.96);border-bottom:1px solid #edf2f7;z-index:20;backdrop-filter:blur(10px)}.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;font-size:1.35rem;text-decoration:none;color:var(--ink);letter-spacing:-.02em}.brand span{color:var(--blue)}.nav{display:flex;gap:26px;align-items:center}.nav a{text-decoration:none;color:#243b5a;font-weight:650;font-size:.95rem}.nav a:hover{color:var(--blue)}.nav-toggle{display:none;border:0;background:transparent;font-size:1.5rem}.hero{background:linear-gradient(135deg,#f0f8ff 0%,#eefcf5 100%);border-bottom:1px solid #deebf4}.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:center;padding:64px 0}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:white;border:1px solid #dce9f4;border-radius:999px;padding:7px 12px;font-weight:700;color:#31557f;font-size:.82rem}.hero h1{font-size:clamp(2.4rem,5vw,4rem);line-height:1.03;margin:16px 0 18px;letter-spacing:-.045em}.hero p{font-size:1.12rem;color:#445b75;max-width:720px}.search-box{display:flex;margin-top:26px;max-width:720px;background:white;border:1px solid #bcd3e8;border-radius:12px;padding:5px;box-shadow:0 8px 30px rgba(24,73,123,.08)}.search-box input{flex:1;border:0;padding:14px 16px;font-size:1rem;outline:0;min-width:0}.search-box button{background:var(--blue);color:#fff;border:0;border-radius:9px;padding:0 24px;font-weight:800;cursor:pointer}.popular-searches{font-size:.9rem;margin-top:10px}.popular-searches a{color:var(--blue);text-decoration:none;margin-left:10px}.calc-illustration{background:#fff;border:1px solid #d9e6f2;border-radius:28px;box-shadow:var(--shadow);padding:26px;max-width:340px;margin-left:auto}.calc-screen{background:#dff4ff;border-radius:12px;padding:22px;font-weight:800;text-align:center;color:#1d4b6f}.keys{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}.keys i{display:block;background:#eaf1f7;border-radius:9px;height:42px}.keys i:nth-child(4n){background:#d8ecff}.trust-list{margin:18px 0 0;padding:0;list-style:none;color:#36526f}.trust-list li{margin:8px 0}.trust-list li:before{content:'✓';color:var(--green);font-weight:900;margin-right:8px}.section{padding:48px 0}.section.alt{background:var(--soft)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px}.section-head h2{font-size:1.7rem;margin:0;letter-spacing:-.025em}.section-head p{margin:4px 0 0;color:var(--muted)}.section-head a{color:var(--blue);text-decoration:none;font-weight:750;white-space:nowrap}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.category-card{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff;text-decoration:none;color:inherit;transition:.15s}.category-card:hover,.tool-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#bdd5e9}.cat-icon,.tool-icon{width:46px;height:46px;border-radius:12px;background:#edf6ff;display:grid;place-items:center;font-size:1.45rem;flex:0 0 auto}.category-card h3,.tool-card h3{margin:0 0 3px;font-size:1rem}.category-card p,.tool-card p{margin:0;color:var(--muted);font-size:.88rem}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.tool-card{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:17px;background:white;text-decoration:none;color:inherit;transition:.15s}.tool-card .arrow{font-size:1.6rem;color:#7590ad}.all-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.page-hero{padding:42px 0 28px;background:linear-gradient(180deg,#f5faff,#fff);border-bottom:1px solid #edf2f7}.breadcrumbs{font-size:.86rem;color:#667c94;margin-bottom:12px}.breadcrumbs a{color:var(--blue);text-decoration:none}.page-hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.08;margin:0 0 10px;letter-spacing:-.035em}.page-hero p{max-width:820px;color:var(--muted);font-size:1.06rem}.calculator-layout{display:grid;grid-template-columns:minmax(0,720px) 1fr;gap:36px;align-items:start}.calculator-box{background:#fff;border:1px solid #d6e4f0;border-radius:18px;padding:24px;box-shadow:var(--shadow)}.calculator-box h2{margin-top:0}.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-weight:750;font-size:.91rem}.field input,.field select{width:100%;padding:12px 13px;border:1px solid #bfcfe0;border-radius:9px;background:white;font:inherit;color:#18314c}.field input:focus,.field select:focus{outline:3px solid #d9ebff;border-color:var(--blue)}.calc-actions{display:flex;gap:10px;margin-top:20px}.primary-btn,.secondary-btn{border:0;border-radius:9px;padding:12px 18px;font-weight:800;cursor:pointer}.primary-btn{background:var(--blue);color:white}.secondary-btn{background:#eaf1f7;color:#224362}.result{margin-top:20px;border-radius:12px;padding:18px;background:#eff9f4;border:1px solid #c8ead8;display:none}.result.show{display:block}.result h3{margin:0 0 10px}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.result-item{background:#fff;border:1px solid #dcece4;border-radius:9px;padding:12px}.result-item strong{display:block;font-size:1.2rem}.note{font-size:.86rem;color:#65788d}.sidebar-card{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fbfdff}.sidebar-card h3{margin-top:0}.sidebar-card a{display:block;color:#285c93;text-decoration:none;padding:8px 0;border-bottom:1px solid #edf2f7}.content{max-width:850px}.content h2{margin-top:34px}.content h3{margin-top:24px}.formula{background:#f5f8fb;border-left:4px solid var(--blue);padding:16px 18px;border-radius:8px}.faq details{border-top:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:750}.health-note{background:#fff9e8;border:1px solid #f0dfaa;padding:13px 15px;border-radius:10px;margin:14px 0;color:#655317}.site-footer{background:#10213d;color:#d8e4ef;margin-top:50px;padding:42px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}.footer-brand{color:white}.site-footer h3{color:white;font-size:.95rem}.site-footer a{display:block;color:#d8e4ef;text-decoration:none;margin:8px 0}.site-footer p{max-width:480px}.copyright{border-top:1px solid #2b3d58;margin-top:26px;padding-top:18px;font-size:.83rem;color:#9fb0c3}.search-results{position:absolute;left:0;right:0;top:100%;z-index:30;background:white;border:1px solid #cfddeb;border-radius:12px;margin-top:7px;box-shadow:var(--shadow);max-height:360px;overflow:auto;display:none}.search-wrap{position:relative}.search-results.show{display:block}.search-results a{display:block;padding:12px 14px;border-bottom:1px solid #edf2f7;text-decoration:none;color:var(--ink)}.search-results a:hover{background:#f4f9fd}.pill{display:inline-block;border-radius:999px;background:#edf6ff;color:#245d96;padding:4px 9px;font-size:.78rem;font-weight:800}.alphabet{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:24px}.alphabet a{border:1px solid var(--line);border-radius:8px;padding:6px 9px;text-decoration:none;color:#2c5e90}.empty{color:var(--muted)}@media(max-width:900px){.hero-grid,.calculator-layout{grid-template-columns:1fr}.calc-illustration{margin:0}.category-grid{grid-template-columns:repeat(2,1fr)}.all-tools{grid-template-columns:repeat(2,1fr)}.nav-toggle{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:64px;background:white;border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.field-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:620px){.hero-grid{padding:40px 0}.category-grid,.tool-grid,.all-tools,.footer-grid{grid-template-columns:1fr}.search-box button{padding:0 14px}.section{padding:36px 0}.result-grid{grid-template-columns:1fr}}

.schedule-table{width:100%;border-collapse:collapse;font-size:.92rem}.schedule-table th,.schedule-table td{padding:9px 10px;border-bottom:1px solid #dce5ef;text-align:right;white-space:nowrap}.schedule-table th:first-child,.schedule-table td:first-child{text-align:left}.schedule-table th{background:#f4f8fc;color:#18314f}


/* --- Professional homepage refresh and global polish --- */
.nav a{padding:8px 0;position:relative}
.nav a.active,.nav a[aria-current="page"]{color:var(--blue)}
.nav a.active::after,.nav a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-17px;height:3px;border-radius:999px;background:var(--blue)}
.hero.hero-pro{background:linear-gradient(180deg,#eef7ff 0%,#f7fbff 68%,#ffffff 100%);border-bottom:1px solid #e4edf6}
.pro-grid{grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:56px;padding:56px 0 50px}
.hero-copy h1 span{display:block;color:#1f6fec}
.hero-copy p{max-width:680px}
.search-wrap-home{max-width:640px}
.hero-search{margin-top:24px;border-color:#c9dbec;box-shadow:0 16px 40px rgba(24,73,123,.08)}
.hero-search button{min-width:132px}
.hero-trust-row{display:flex;flex-wrap:wrap;gap:22px 26px;margin-top:18px;color:#37526f;font-size:.95rem}
.hero-trust-row span{display:inline-flex;align-items:center;gap:8px;font-weight:650}
.hero-trust-row svg{width:16px;height:16px;fill:#1f6fec;stroke:#1f6fec;stroke-width:0}
.pro-popular-searches{margin-top:14px;color:#516980}
.pro-popular-searches strong{color:var(--ink)}
.pro-popular-searches a{margin-left:12px}
.hero-visual{position:relative}
.hero-device-wrap{position:relative;min-height:420px}
.hero-bubble{position:absolute;border-radius:999px;filter:blur(0.2px);opacity:.95}
.hero-bubble-a{width:260px;height:160px;background:radial-gradient(circle at 30% 30%, #d7e8ff 0, #cbe0ff 52%, rgba(203,224,255,.35) 100%);right:30px;top:32px}
.hero-bubble-b{width:220px;height:140px;background:radial-gradient(circle at 30% 30%, #eef7ff 0, #dfeeff 60%, rgba(223,238,255,.3) 100%);left:24px;bottom:48px}
.pro-calc-illustration{position:absolute;left:50%;top:56%;transform:translate(-32%,-50%) rotate(-3deg);padding:18px 18px 16px;max-width:270px;border-radius:28px;box-shadow:0 24px 70px rgba(31,79,146,.18);z-index:2}
.pro-calc-illustration .calc-screen{padding:18px 14px;border-radius:16px;background:linear-gradient(180deg,#eff6ff,#dcecff);font-size:1.05rem}
.number-keys i{display:grid;place-items:center;color:#1f3651;background:#ffffff;border:1px solid #e4ecf6;height:48px;font-style:normal;font-weight:800;box-shadow:0 6px 14px rgba(26,61,99,.06)}
.number-keys i:nth-child(4n){background:#eff5ff}
.number-keys i.accent{background:linear-gradient(180deg,#2a7cff,#0b63ce);color:#fff;border-color:#1f6fec}
.mini-card{position:absolute;display:flex;gap:12px;align-items:center;background:rgba(255,255,255,.95);border:1px solid #e3ebf6;border-radius:18px;padding:14px 16px;box-shadow:0 20px 40px rgba(31,79,146,.12);z-index:3;min-width:176px}
.mini-card strong{display:block;font-size:.95rem;line-height:1.25}
.mini-card span{display:block;font-size:.8rem;color:#67798d;margin-top:3px}
.mini-card-a{left:6px;top:28px}
.mini-card-b{left:-14px;top:150px}
.mini-card-c{right:8px;top:46px}
.mini-card-d{right:0;top:190px}
.mini-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-weight:800;color:#1f6fec;background:#eff6ff}
.money-svg{color:#0b8f5b;background:#eaf8f1}
.date-svg{color:#eb4b5b;background:#fff0f3}
.home-svg{color:#1f6fec;background:#edf4ff}
.math-svg{color:#6f3fe2;background:#f3edff}
.hero-note{position:absolute;right:12px;bottom:18px;color:#2460d8;font-size:1.1rem;font-weight:700;line-height:1.1;font-family:"Comic Sans MS", "Marker Felt", cursive;transform:rotate(-4deg);z-index:4}
.section-tight{padding-top:26px}
.left-only{justify-content:flex-start}
.pro-category-grid{gap:16px}
.pro-category-card{position:relative;align-items:flex-start;padding:20px 18px 18px;gap:14px}
.pro-category-card small{display:block;margin-top:8px;color:#6a7f95;font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
.pro-category-card .card-arrow{margin-left:auto;align-self:center;font-size:1.5rem;color:#7f94aa}
.pro-icon{background:#f3f7fc;color:#234564}
.pro-icon svg,.trust-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pro-icon.money{background:#e9f8f0;color:#0b8f5b}
.pro-icon.business{background:#edf4ff;color:#1f6fec}
.pro-icon.math{background:#f3edff;color:#6f3fe2}
.pro-icon.dates{background:#fff0f3;color:#eb4b5b}
.pro-icon.home{background:#fff3e9;color:#f28a18}
.pro-icon.school{background:#f4edff;color:#6f3fe2}
.pro-icon.health{background:#fff0f2;color:#e54565}
.pro-icon.conversions{background:#eef7ff;color:#2770e7}
.why-strip{border-top:1px solid #eaf0f6;border-bottom:1px solid #eaf0f6}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.trust-card{display:flex;gap:16px;align-items:flex-start;background:rgba(255,255,255,.62);border:1px solid #e0eaf4;border-radius:18px;padding:22px 20px}
.trust-card h3{margin:0 0 5px;font-size:1.12rem}
.trust-card p{margin:0;color:#5f7186}
.trust-icon{width:56px;height:56px;flex:0 0 auto;border-radius:50%;display:grid;place-items:center;background:#edf4ff;color:#1f6fec}
.tool-grid-3{grid-template-columns:repeat(3,1fr)}
.pro-tool-card{padding:18px 16px}
.pro-tool-card .tool-icon{font-size:1.15rem;font-weight:800}
.topic-section{background:linear-gradient(180deg,#f7fbff 0%,#f4f9ff 100%)}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.topic-card{background:#fff;border:1px solid #dce7f2;border-radius:18px;padding:22px;box-shadow:0 10px 30px rgba(26,61,99,.05)}
.topic-card h3{margin:0 0 6px;font-size:1.2rem}
.topic-card p{margin:0 0 16px;color:#5d6b7e}
.topic-links{display:grid;gap:10px}
.topic-links a{display:flex;justify-content:space-between;align-items:center;text-decoration:none;color:#174982;font-weight:700;border:1px solid #e7eef6;border-radius:12px;padding:12px 14px;background:#fbfdff}
.topic-links a::after{content:"›";font-size:1.2rem;color:#7b92ac}
.home-content{max-width:900px}
.site-header.scrolled{box-shadow:0 10px 30px rgba(16,33,61,.06)}
@media(max-width:1100px){.pro-grid{grid-template-columns:1fr;gap:26px}.hero-device-wrap{min-height:370px;max-width:640px;margin:0 auto}.pro-calc-illustration{left:50%;transform:translate(-18%,-50%) rotate(-3deg)}.mini-card-a{left:18px}.mini-card-b{left:0}.mini-card-c{right:18px}.mini-card-d{right:10px}.tool-grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.hero-trust-row{gap:14px 18px}.trust-grid,.topic-grid{grid-template-columns:1fr}.pro-grid{padding:42px 0}.nav a.active::after,.nav a[aria-current="page"]::after{display:none}}
@media(max-width:700px){.hero-device-wrap{min-height:430px}.pro-calc-illustration{position:relative;left:auto;top:auto;transform:rotate(-2deg);margin:110px auto 0}.mini-card{min-width:auto;width:calc(50% - 10px);padding:12px}.mini-card strong{font-size:.88rem}.mini-card span{font-size:.75rem}.mini-card-a{left:0;top:0}.mini-card-b{left:0;top:120px}.mini-card-c{right:0;top:0}.mini-card-d{right:0;top:120px}.hero-note{right:8px;bottom:0;font-size:1rem}.tool-grid-3{grid-template-columns:1fr}.hero-search button{min-width:110px}}
@media(max-width:620px){.hero-search{padding:4px}.hero-trust-row span{font-size:.88rem}.search-box button{padding:0 16px}.pro-category-card .card-arrow{display:none}.section-tight{padding-top:16px}}


/* --- Calculator/category/popular professional page pass --- */
.page-hero-pro{padding:36px 0;background:linear-gradient(180deg,#f4f9ff 0%,#ffffff 100%);border-bottom:1px solid #e7eef6}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) 320px;gap:28px;align-items:start}
.page-hero-pro h1{font-size:clamp(2rem,4vw,3rem);line-height:1.05;margin:12px 0 10px;letter-spacing:-.035em}
.page-hero-pro p{font-size:1.06rem;max-width:820px;color:#5a6f85}
.hero-side-card{background:#fff;border:1px solid #d9e4ef;border-radius:18px;padding:20px;box-shadow:0 12px 34px rgba(26,61,99,.07)}
.hero-side-card h3{margin:0 0 14px;font-size:1.08rem}
.hero-stat-list{display:grid;gap:12px;margin-bottom:14px}
.hero-stat-list div{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;padding:10px 0;border-bottom:1px solid #edf2f7}
.hero-stat-list div:last-child{border-bottom:0}
.hero-stat-list strong{font-size:1rem;color:var(--ink)}
.hero-stat-list span{font-size:.9rem;color:#63768a;text-align:right}
.hero-side-link{display:inline-block;margin-top:4px;color:var(--blue);font-weight:800;text-decoration:none}
.hero-mini-links{display:grid;gap:9px;margin-top:12px}
.hero-mini-links a{display:flex;justify-content:space-between;align-items:center;text-decoration:none;color:#1d5188;font-weight:700;border:1px solid #e7eef6;border-radius:10px;padding:10px 12px;background:#fbfdff}
.hero-mini-links a::after{content:"›";color:#8093a8}
.hero-key-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-key-points span{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #dfe8f1;border-radius:999px;padding:8px 12px;font-weight:700;color:#385876;font-size:.84rem}
.hero-key-points span::before{content:"✓";color:var(--green);font-weight:900}
.calculator-section{padding-top:28px}
.pro-calculator-layout{grid-template-columns:minmax(0,1fr) 290px;gap:24px}
.calc-main{min-width:0}
#calculator-app .calculator-box{border-radius:22px;padding:28px;border-color:#d9e4ef;box-shadow:0 16px 38px rgba(16,33,61,.07)}
#calculator-app .calculator-box h2{font-size:1.5rem;margin-bottom:18px}
#calculator-app .field label{font-size:.92rem;color:#213950}
#calculator-app .field input,#calculator-app .field select{border-radius:11px;padding:13px 14px}
#calculator-app .field input:focus,#calculator-app .field select:focus{outline:3px solid #ddebff}
#calculator-app .calc-actions{margin-top:22px}
#calculator-app .primary-btn,#calculator-app .secondary-btn{min-height:46px}
#calculator-app .result{padding:20px;border-radius:16px;background:linear-gradient(180deg,#f1fbf6 0%,#eff9f4 100%)}
#calculator-app .result-grid{gap:12px}
#calculator-app .result-item{padding:14px;border-radius:12px}
#calculator-app .result-item span{display:block;color:#5c7086;font-size:.88rem;margin-bottom:4px}
#calculator-app .result-item strong{font-size:1.32rem;letter-spacing:-.02em}
.prose-card{padding:28px}
.content-card{background:#fff;border:1px solid #dde7f1;border-radius:18px;padding:22px;box-shadow:0 10px 28px rgba(16,33,61,.05)}
.content-card + .content-card{margin-top:18px}
.prose-card h2:first-child{margin-top:0}
.prose-card .faq{margin-top:10px}
.prose-card .faq h2{margin-top:26px}
.related-row-card .mini-link-grid,.two-col-info .mini-link-grid{display:grid;gap:12px}
.mini-link-grid a{display:flex;justify-content:space-between;align-items:center;text-decoration:none;color:#1f5389;font-weight:700;border:1px solid #e7eef6;border-radius:12px;padding:12px 14px;background:#fbfdff}
.mini-link-grid a::after{content:"›";color:#8093a8;font-size:1.1rem}
.sidebar-stack{display:flex;flex-direction:column;gap:16px}
.sidebar-pro{background:#fbfdff}
.sidebar-pro h3{margin-bottom:12px}
.sidebar-pro a:last-child{border-bottom:0}
.compact-head{margin-bottom:16px}
.two-col-info{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:980px){.page-hero-grid,.pro-calculator-layout,.two-col-info{grid-template-columns:1fr}.hero-side-card{order:2}}

.category-pill-grid{grid-template-columns:repeat(4,1fr)}
.category-pill-grid a span{display:block;font-size:.78rem;color:#6a7f95;font-weight:600}
@media(max-width:900px){.category-pill-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.category-pill-grid{grid-template-columns:1fr}}


/* --- SEO/content pass: guides, internal-link blocks and HTML sitemap --- */
.footer-grid-4{grid-template-columns:2fr 1fr 1fr 1fr}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.guide-card{display:block;background:#fff;border:1px solid #dce7f1;border-radius:18px;padding:24px;text-decoration:none;color:inherit;box-shadow:0 10px 28px rgba(16,33,61,.045);transition:.16s}
.guide-card:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(16,33,61,.08);border-color:#bcd3e9}
.guide-card h3{font-size:1.25rem;margin:9px 0 8px;letter-spacing:-.015em}
.guide-card p{margin:0;color:#607286}
.guide-tag{display:inline-block;font-size:.75rem;font-weight:850;letter-spacing:.06em;text-transform:uppercase;color:#1f6fec}
.guide-link{display:inline-block;margin-top:16px;color:#0b63ce;font-weight:800}
.guide-hero{background:linear-gradient(180deg,#f2f8ff 0%,#fff 100%);border-bottom:1px solid #e4edf6;padding:42px 0 34px}
.guide-hero-inner{max-width:900px}
.guide-hero h1{font-size:clamp(2.2rem,4.5vw,3.5rem);line-height:1.04;margin:12px 0 14px;letter-spacing:-.04em}
.guide-hero p{font-size:1.12rem;color:#586d82;max-width:820px}
.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:26px;align-items:start}
.guide-article{padding:30px}
.guide-article h2{font-size:1.55rem;margin:34px 0 10px;letter-spacing:-.02em}
.guide-article h2:first-of-type{margin-top:0}
.guide-article p,.guide-article li{color:#465c72;font-size:1.02rem}
.guide-article ul{padding-left:22px}
.guide-article li{margin:7px 0}
.guide-article .formula{font-size:1.03rem;line-height:1.7}
.guide-cta{display:flex;justify-content:space-between;gap:20px;align-items:center;background:linear-gradient(135deg,#eef6ff,#f6fbff);border:1px solid #cfe1f3;border-radius:16px;padding:20px;margin-bottom:28px}
.guide-cta h2{margin:4px 0!important;font-size:1.3rem}
.guide-cta p{margin:0;font-size:.94rem}
.primary-link-btn{display:inline-flex;align-items:center;justify-content:center;background:#0b63ce;color:white!important;text-decoration:none;border-radius:10px;padding:12px 17px;font-weight:850;white-space:nowrap}
.guide-related-grid{grid-template-columns:repeat(4,1fr)}
.seo-link-block{margin-top:18px;background:linear-gradient(135deg,#f5f9ff,#fbfdff);border:1px solid #dce8f3;border-radius:16px;padding:18px}
.seo-link-block .guide-tag{margin-bottom:4px}
.seo-link-block h3{margin:3px 0 6px;font-size:1.08rem}
.seo-link-block p{margin:0 0 10px;color:#607286;font-size:.9rem}
.seo-link-block a{color:#0b63ce;font-weight:800;text-decoration:none}
.category-guide-strip{margin-top:24px}
.category-guide-strip .guide-grid{grid-template-columns:repeat(2,1fr)}
.sitemap-top{display:grid;grid-template-columns:1fr 2fr;gap:18px;margin-bottom:26px}
.sitemap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sitemap-group{background:#fff;border:1px solid #dce7f1;border-radius:18px;padding:22px}
.sitemap-group h2{margin:0 0 14px;font-size:1.2rem}
.sitemap-group h2 a{text-decoration:none;color:var(--ink)}
.sitemap-group h2 span{font-size:.75rem;color:#6b8095;font-weight:750;margin-left:6px}
.sitemap-group ul,.plain-link-list{columns:2;column-gap:26px;margin:0;padding-left:18px}
.sitemap-group li,.plain-link-list li{break-inside:avoid;margin:6px 0}
.sitemap-group a,.plain-link-list a{color:#245b91;text-decoration:none}
.sitemap-group a:hover,.plain-link-list a:hover{text-decoration:underline}
.home-guide-section{background:linear-gradient(180deg,#fff,#f7fbff)}
@media(max-width:980px){.footer-grid-4{grid-template-columns:1fr 1fr}.guide-layout{grid-template-columns:1fr}.guide-related-grid{grid-template-columns:repeat(2,1fr)}.sitemap-top,.sitemap-grid{grid-template-columns:1fr}}
@media(max-width:700px){.guide-grid,.category-guide-strip .guide-grid{grid-template-columns:1fr}.guide-cta{align-items:flex-start;flex-direction:column}.guide-related-grid{grid-template-columns:1fr}.sitemap-group ul,.plain-link-list{columns:1}.footer-grid-4{grid-template-columns:1fr}}

/* --- 20-topic cluster / long-tail content pass --- */
.topic-hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.topic-hub-card{display:flex;flex-direction:column;min-height:220px;background:#fff;border:1px solid #dce7f2;border-radius:18px;padding:21px;text-decoration:none;color:inherit;box-shadow:0 10px 28px rgba(16,33,61,.045);transition:.15s}
.topic-hub-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#bdd5e9}
.topic-category{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:#2d69a8;font-weight:850;margin-bottom:8px}
.topic-hub-card h3{font-size:1.13rem;line-height:1.25;margin:0 0 8px}
.topic-hub-card p{color:var(--muted);font-size:.9rem;margin:0 0 15px}
.topic-meta{display:flex;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid #edf2f7;color:#6c8095;font-size:.78rem;font-weight:700}
.topic-hub-card .guide-link{margin-top:12px;color:var(--blue);font-weight:800;font-size:.88rem}
.related-topic-grid{grid-template-columns:repeat(4,1fr)}
.related-topic-grid .topic-hub-card{min-height:205px}
.home-topic-grid{grid-template-columns:repeat(3,1fr)}
.topic-intro-copy{max-width:900px;margin:auto}
.topic-tool-icon{background:#edf4ff;color:#1f6fec;font-weight:900}
.guide-cluster-library{display:grid;gap:44px}
.guide-cluster-block{padding-bottom:40px;border-bottom:1px solid #e5edf5}
.guide-cluster-block:last-child{border-bottom:0}
.guide-cluster-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:17px}
.guide-cluster-head h2{margin:5px 0 5px;font-size:1.65rem}.guide-cluster-head h2 a{color:var(--ink);text-decoration:none}
.guide-cluster-head p{margin:0;color:var(--muted);max-width:760px}
.guide-cluster-topic{white-space:nowrap;color:var(--blue);text-decoration:none;font-weight:800}
.compact-guide-grid{grid-template-columns:repeat(3,1fr)}
.topic-learning-card{margin-top:18px;background:linear-gradient(180deg,#f8fbff,#fff)}
.topic-learning-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:15px}
.topic-learning-head h2{margin:5px 0 5px;font-size:1.35rem}.topic-learning-head p{margin:0;color:var(--muted)}
.secondary-link-btn{display:inline-block;text-decoration:none;border-radius:10px;padding:10px 14px;font-weight:800;background:#eef5ff;color:#145db8;border:1px solid #d1e2f5;white-space:nowrap}
.topic-cluster-section{border-top:1px solid #edf2f7}
.guide-steps{padding-left:1.25rem}.guide-steps li{margin:10px 0}
.sitemap-sections{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.sitemap-sections section{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.sitemap-sections h2{margin-top:0}
.sitemap-wide{grid-column:1/-1}
.sitemap-list{columns:2;column-gap:32px;margin:0;padding-left:20px}
.sitemap-list li{break-inside:avoid;margin:7px 0}
.sitemap-list a{color:#245b91;text-decoration:none}
.sitemap-wide .sitemap-list{columns:3}
.home-topic-section .topic-hub-card,.popular-topic-section .topic-hub-card{min-height:205px}
.footer-grid-4{grid-template-columns:2fr 1fr 1fr 1fr}
@media(max-width:1000px){
  .topic-hub-grid,.home-topic-grid,.compact-guide-grid{grid-template-columns:repeat(2,1fr)}
  .related-topic-grid{grid-template-columns:repeat(2,1fr)}
  .sitemap-wide .sitemap-list{columns:2}
}
@media(max-width:900px){.footer-grid-4{grid-template-columns:1fr 1fr}}
@media(max-width:700px){
  .topic-hub-grid,.home-topic-grid,.compact-guide-grid,.related-topic-grid,.sitemap-sections{grid-template-columns:1fr}
  .guide-cluster-head,.topic-learning-head{align-items:flex-start;flex-direction:column}
  .sitemap-wide{grid-column:auto}
  .sitemap-list,.sitemap-wide .sitemap-list{columns:1}
  .footer-grid-4{grid-template-columns:1fr}
}


/* rendering safeguards */
svg{max-width:100%;}
.hero-trust-row svg{width:16px!important;height:16px!important;min-width:16px!important;max-width:16px!important;flex:0 0 16px!important;display:block;}
.pro-icon svg{width:24px!important;height:24px!important;min-width:24px!important;max-width:24px!important;display:block;}
.trust-icon svg{width:24px!important;height:24px!important;min-width:24px!important;max-width:24px!important;display:block;}
.hero-visual,.hero-device-wrap{min-width:0;}
@media (min-width:1101px){.hero.hero-pro .pro-grid{grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr)!important;}}


/* Safe text-icon rendering: avoids inline SVG sizing failures */
.safe-inline-icon{display:inline-grid;place-items:center;line-height:1;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-style:normal;font-weight:800;overflow:hidden}
.trust-mark{width:18px;height:18px;min-width:18px;max-width:18px;border-radius:50%;background:#eaf3ff;color:#1768d5;font-size:12px;flex:0 0 18px}
.category-symbol{width:24px;height:24px;min-width:24px;max-width:24px;font-size:18px}
.trust-symbol{width:24px;height:24px;min-width:24px;max-width:24px;font-size:19px;color:#1f6fec}
.cat-icon .category-symbol{width:24px;height:24px}
.trust-icon .trust-symbol{width:24px;height:24px}
.hero-trust-row .trust-mark{display:inline-grid!important}


/* Quality and trust pass */
.reviewed-line{color:#6a7f95;font-size:.88rem;font-weight:700;margin-top:-8px}
.methodology-content{display:grid;gap:18px;max-width:900px}
.methodology-content .content-card h2{margin-top:0}
.source-list{display:grid;gap:10px;margin-top:14px}
.source-list a,.source-link a{color:#174f88;font-weight:700;text-decoration:none}
.source-list a:hover,.source-link a:hover{text-decoration:underline}
.source-assumption-box{border-left:4px solid #2b74da;background:linear-gradient(180deg,#fbfdff,#f7fbff)}
.source-assumption-box h2{margin:6px 0 8px;font-size:1.18rem}
.source-assumption-box p{margin:7px 0}
.trust-label{display:inline-block;font-size:.75rem;font-weight:850;letter-spacing:.055em;text-transform:uppercase;color:#245e9c;background:#eaf4ff;border-radius:999px;padding:5px 9px}
.calculator-trust-box{display:flex;justify-content:space-between;gap:20px;align-items:center;background:#fbfdff}
.calculator-trust-box h2{margin:6px 0 5px;font-size:1.15rem}
.calculator-trust-box p{margin:0;color:#60748a}
.trust-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.trust-actions a{display:inline-flex;align-items:center;justify-content:center;border:1px solid #cfe0ef;border-radius:10px;padding:10px 12px;text-decoration:none;color:#174f88;font-weight:800;background:#fff;white-space:nowrap}
.trust-actions a:hover{border-color:#9fc1df;background:#f4f9ff}
.content ul{padding-left:22px}
.content li{margin:8px 0}
@media(max-width:700px){.calculator-trust-box{display:block}.trust-actions{justify-content:flex-start;margin-top:14px}}

.trust-method-link{margin-top:18px;text-align:right}.trust-method-link a{color:#174f88;font-weight:800;text-decoration:none}.trust-method-link a:hover{text-decoration:underline}