:root{--navy:#071d49;--blue:#0867ed;--blue2:#044cc7;--orange:#ff650d;--text:#13203a;--muted:#63708a;--line:#dfe6f1;--soft:#f5f8fc;--green:#18864b;--shadow:0 14px 40px rgba(20,48,91,.09);--radius:16px;--background:#fff;--foreground:#13203a;--card:#fff;--card-foreground:#13203a;--popover:#fff;--popover-foreground:#13203a;--primary:#0867ed;--primary-foreground:#fff;--secondary:#f5f8fc;--secondary-foreground:#13203a;--muted-foreground:#63708a;--accent:#eef5ff;--accent-foreground:#0867ed;--destructive:#d73131;--border:#dfe6f1;--input:#dfe6f1;--ring:#0867ed}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.container{width:min(1480px,calc(100% - 64px));margin-inline:auto}.narrow{max-width:980px}.section{padding:88px 0}.section-soft{background:#f6f9fd}.section-kicker{display:block;color:var(--blue);font-size:.75rem;font-weight:850;text-transform:uppercase;letter-spacing:.14em;margin-bottom:10px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:34px}.section-heading h2,.center-heading h2,.reliability h2,.category-method h2{font-size:clamp(1.75rem,2.4vw,2.6rem);line-height:1.12;letter-spacing:-.035em;color:var(--navy);margin:0}.section-heading p,.center-heading p{color:var(--muted);margin:9px 0 0;font-size:1.02rem}.section-heading>a,.light>a{display:flex;align-items:center;gap:7px;color:var(--blue);font-size:.9rem;font-weight:800}.section-heading>a svg{width:16px}.center-heading{text-align:center;max-width:780px;margin:0 auto 48px}.center-heading p{font-size:1.08rem}.button-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.primary-link,.secondary-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:9px;font-weight:800;font-size:.92rem}.primary-link{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(8,103,237,.18)}.secondary-link{border:1px solid #cbd7e9;color:var(--navy);background:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid #e7ebf2;backdrop-filter:blur(14px)}.header-inner{height:76px;width:min(1480px,calc(100% - 50px));margin:auto;display:flex;align-items:center;gap:42px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;color:var(--navy);font-size:1.4rem;font-weight:850;letter-spacing:-.045em}.brand>span:last-child span{color:var(--orange)}.brand-mark{display:grid;grid-template-columns:repeat(2,14px);grid-template-rows:repeat(2,14px);gap:2px;padding:3px;background:linear-gradient(135deg,#0874f8,#0452cf);border-radius:7px;box-shadow:0 4px 10px rgba(8,103,237,.24)}.brand-mark i{height:14px;width:14px;border-radius:3px;background:#fff;color:var(--blue);display:grid;place-items:center;font-size:10px;font-weight:900;font-style:normal;line-height:1}.brand-mark i:nth-child(4){background:var(--orange);color:#fff}.main-nav{display:flex;align-items:center;gap:23px;margin:auto}.main-nav a{font-size:.82rem;font-weight:720;color:#273754;white-space:nowrap}.main-nav a:hover{color:var(--blue)}.header-actions{display:flex;align-items:center;gap:12px}.trust-link{display:flex;align-items:center;gap:6px;color:#43516a;font-size:.78rem;font-weight:750}.trust-link svg{color:var(--green)}.icon-link{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;border:1px solid var(--line)}.menu-button{display:none;border:0;background:transparent;color:var(--navy)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,#fbfdff 72%,#f7faff 100%);border-bottom:1px solid #e7edf6;padding:42px 0 68px}.hero-glow{position:absolute;width:760px;height:470px;right:-190px;top:-190px;background:radial-gradient(ellipse,rgba(8,103,237,.1),transparent 65%);pointer-events:none}.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(330px,.7fr);gap:34px 60px}.hero-copy{max-width:790px}.eyebrow{display:inline-flex;align-items:center;gap:9px;border:1px solid #ffd8bf;color:#d84900;background:#fff8f3;border-radius:7px;padding:7px 11px;font-size:.72rem;font-weight:800}.eyebrow i{height:4px;width:4px;background:#f8a371;border-radius:50%}.hero h1{font-size:clamp(3.35rem,5.1vw,5.35rem);line-height:.98;letter-spacing:-.065em;color:var(--navy);margin:25px 0 18px;max-width:800px}.hero h1 span{color:var(--orange)}.hero-copy>p{color:var(--muted);font-size:1.18rem;line-height:1.6;max-width:710px;margin:0}.proof-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:22px}.proof-row span{display:flex;align-items:center;gap:7px;font-size:.79rem;font-weight:700;color:#51617b}.proof-row svg{width:17px;color:var(--blue);fill:#e5f1ff}.hero-trust{align-self:center;display:flex;gap:15px;padding:20px;border:1px solid #dce6f4;border-radius:14px;background:rgba(255,255,255,.78);box-shadow:0 10px 30px rgba(20,48,91,.06)}.trust-icon{display:grid;place-items:center;flex:0 0 42px;height:42px;border-radius:12px;background:#eaf7ef;color:var(--green)}.hero-trust strong{color:var(--navy);font-size:.93rem}.hero-trust p{font-size:.78rem;line-height:1.55;color:var(--muted);margin:5px 0 8px}.hero-trust a{display:flex;align-items:center;gap:5px;color:var(--blue);font-size:.75rem;font-weight:800}.hero-trust a svg{width:14px}.home-calculator{grid-column:1/-1;background:#fff;border:1px solid #dbe4f1;border-radius:14px;box-shadow:var(--shadow);overflow:hidden}.calculator-tabs{height:auto!important;width:100%!important;justify-content:flex-start!important;padding:0!important;border-radius:0!important;border-bottom:1px solid #dfe6f1;background:#fff!important;gap:0!important}.calculator-tabs button{min-height:58px;padding:0 25px!important;border-right:1px solid #e3e9f2!important;border-radius:0!important;font-size:.8rem!important;color:#43516a!important}.calculator-tabs button[data-state=active]{background:var(--blue)!important;color:#fff!important;box-shadow:none!important}.calculator-tabs button:after{display:none!important}

/* calculator */
.calculator-shell{display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid #dbe4f1;border-radius:15px;overflow:hidden;box-shadow:var(--shadow)}.home-calculator .calculator-shell{border:0;border-radius:0;box-shadow:none}.calculator-inputs,.result-panel{padding:30px 34px}.calculator-inputs{border-right:1px solid #dfe6f1}.panel-kicker{display:flex;justify-content:space-between;gap:15px;color:#65728a;font-size:.7rem;font-weight:750;margin-bottom:18px}.panel-kicker span:first-child{color:var(--blue)}.calculator-inputs h2{color:var(--navy);font-size:1.35rem;margin:0 0 20px}.fields-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fields-grid label{display:block}.fields-grid label>span{display:block;font-size:.75rem;font-weight:760;color:#3f4c64;margin-bottom:7px}.input-wrap{height:48px;display:flex;align-items:center;border:1px solid #ccd6e5;border-radius:8px;background:#fff;box-shadow:inset 0 1px 2px rgba(15,40,80,.03);overflow:hidden}.input-wrap:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,103,237,.12)}.input-wrap input{border:0;outline:0;width:100%;min-width:0;height:100%;padding:0 12px;color:var(--navy);font-size:1rem;font-weight:750}.input-wrap b{padding:0 12px;color:#778297;font-size:.8rem}.primary-button{width:100%;height:50px;margin-top:18px;border:0;border-radius:8px;color:#fff;background:linear-gradient(90deg,#ff660e,#ff7217);font-weight:850;box-shadow:0 8px 18px rgba(255,101,13,.18)}.primary-button span{margin-left:8px}.reset-button{display:flex;align-items:center;gap:6px;border:0;background:none;color:#6e7b91;font-size:.7rem;margin:10px auto -8px}.result-panel{position:relative;background:linear-gradient(135deg,#fff,#fbfdff)}.result-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.result-head>span{font-size:.84rem;font-weight:850;color:var(--blue)}.result-head em{display:flex;align-items:center;gap:4px;background:#eaf8ee;color:var(--green);font-style:normal;font-size:.64rem;font-weight:800;padding:5px 8px;border-radius:20px}.big-result{font-size:3.25rem;line-height:1;color:#0a62df;font-weight:850;letter-spacing:-.055em;margin:24px 0 15px}.big-result small{font-size:1.2rem;letter-spacing:-.02em}.big-result.error{font-size:1.6rem;color:#c83333}.result-actions{display:flex;gap:9px;position:absolute;right:34px;top:74px}.result-actions button{display:flex;align-items:center;gap:6px;height:38px;padding:0 13px;background:#fff;border:1px solid #aac6f2;border-radius:6px;color:var(--blue);font-size:.72rem;font-weight:800}.result-actions button:first-child{color:#fff;background:var(--blue);border-color:var(--blue)}.formula-box{background:#f1f6fd;border:1px solid #d6e3f5;border-radius:9px;padding:14px 16px}.formula-box span{display:block;color:#718098;font-size:.65rem;margin-bottom:4px}.formula-box strong{display:block;color:#2f405e;font-size:.77rem}.formula-box p{color:#5f6c82;font-size:.68rem;margin:7px 0 0;line-height:1.5}.calculation-steps{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:8px}.calculation-steps li{display:flex;align-items:flex-start;gap:9px;color:#4b5970;font-size:.69rem}.calculation-steps b{display:grid;place-items:center;flex:0 0 20px;height:20px;border-radius:50%;background:#eaf2ff;color:var(--blue);font-size:.62rem}

/* Home sections */
.quick-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:12px}.quick-card{position:relative;min-height:165px;border:1px solid var(--line);border-radius:11px;padding:17px 15px;background:#fff;transition:.2s}.quick-card:hover{transform:translateY(-3px);border-color:#b8cdf0;box-shadow:0 12px 26px rgba(20,48,91,.09)}.quick-card>svg{position:absolute;right:11px;bottom:11px;width:15px;color:#9aabc3}.quick-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:#eaf3ff;color:var(--blue);font-size:1rem;font-weight:900;margin-bottom:14px}.tone-1{background:#fff1e7;color:#ff610b}.tone-2{background:#eef0ff;color:#565dde}.tone-3{background:#eff9ef;color:#219250}.tone-4{background:#fff1f4;color:#e74366}.tone-5{background:#f2edff;color:#7a3ee0}.quick-card strong{display:block;color:var(--navy);font-size:.82rem;margin-bottom:6px}.quick-card small{display:-webkit-box;color:#6b7890;font-size:.67rem;line-height:1.45;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.count-label{font-size:.72rem;font-weight:750;color:#708098;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:20px}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.category-card{position:relative;display:flex;align-items:flex-start;gap:13px;min-height:150px;padding:20px;border:1px solid #dfe6f1;border-radius:12px;background:#fff;transition:.2s}.category-card:hover{border-color:#b6c9e7;box-shadow:0 10px 28px rgba(20,48,91,.08);transform:translateY(-2px)}.category-card>span{display:grid;place-items:center;width:42px;height:42px;flex:0 0 42px;border-radius:11px;background:#eaf3ff;color:#146ee7}.category-card>span svg{width:22px}.category-card>svg{position:absolute;right:16px;top:20px;width:16px;color:#9baac0}.category-card strong{display:block;color:var(--navy);font-size:.91rem;padding-right:16px}.category-card small{display:block;color:var(--blue);font-size:.65rem;font-weight:780;margin-top:3px}.category-card p{color:#68758b;font-size:.69rem;line-height:1.5;margin:10px 0 0}.category-card.orange>span{background:#fff0e6;color:#ff650d}.category-card.green>span{background:#eaf8ee;color:#228b4e}.category-card.violet>span,.category-card.purple>span{background:#f3ebff;color:#873ce4}.category-card.indigo>span{background:#edf0ff;color:#5262df}.category-card.yellow>span{background:#fff8d9;color:#b98000}.category-card.rose>span{background:#fff0f4;color:#e24871}.category-card.red>span{background:#ffedf0;color:#e03d58}.category-card.cyan>span{background:#e9f9fb;color:#178a99}.process-section{padding-top:100px}.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.process-grid article{position:relative;min-height:230px;padding:30px;border:1px solid var(--line);border-radius:15px;background:#fff}.process-grid article>span{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:#eaf3ff;color:var(--blue)}.process-grid article>em{position:absolute;top:27px;right:28px;color:#d8e1ee;font-size:1.4rem;font-weight:900;font-style:normal}.process-grid h3{font-size:1.15rem;color:var(--navy);margin:22px 0 8px}.process-grid p{color:#69768b;font-size:.84rem;line-height:1.65;margin:0}.examples-band{background:linear-gradient(135deg,#0756da,#0876f6);color:#fff}.section-heading.light h2,.section-heading.light .section-kicker{color:#fff}.section-heading.light .section-kicker{opacity:.72}.section-heading.light>a{color:#fff}.example-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.example-grid article{background:#fff;color:var(--text);border-radius:12px;padding:24px;box-shadow:0 10px 26px rgba(0,27,94,.15)}.example-grid span{display:block;color:#65728a;font-size:.72rem;font-weight:750}.example-grid strong{display:block;color:var(--navy);font-size:1.7rem;letter-spacing:-.04em;margin:15px 0 8px}.example-grid small{color:#748197;font-size:.7rem}.example-grid small b{color:#15914b}.reliability{display:grid;grid-template-columns:1.2fr .8fr;gap:90px;align-items:center}.reliability-copy>p{font-size:1.03rem;line-height:1.75;color:var(--muted);max-width:760px}.reliability-list{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin:28px 0}.reliability-list span{display:flex;align-items:center;gap:9px;font-size:.8rem;font-weight:700;color:#34445e}.reliability-list svg{width:18px;color:var(--green)}.quality-card{background:linear-gradient(155deg,#071d49,#0a377a);border-radius:20px;color:#fff;padding:30px;box-shadow:0 20px 50px rgba(7,29,73,.2)}.quality-score{display:grid;grid-template-columns:1fr auto;align-items:end;border-bottom:1px solid rgba(255,255,255,.15);padding-bottom:22px;margin-bottom:20px}.quality-score>span{font-size:.75rem;color:#a8c3ee;text-transform:uppercase;letter-spacing:.1em}.quality-score strong{grid-row:1/3;grid-column:2;font-size:3.7rem;line-height:.9;letter-spacing:-.06em;color:#fff}.quality-score strong small{font-size:1.1rem;color:#89baff}.quality-score p{font-size:.7rem;color:#8fa9cc;margin:5px 0 0}.quality-checks{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.quality-checks span{display:flex;align-items:center;gap:6px;color:#d4e3f9;font-size:.72rem}.quality-checks svg{width:15px;color:#5fe297}.quality-card>a{display:flex;align-items:center;gap:6px;color:#fff;font-size:.75rem;font-weight:800;margin-top:23px}.quality-card>a svg{width:15px}.cta-section{padding:56px 0;background:#f4f8ff}.cta-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;background:linear-gradient(125deg,#071d49,#0759df);color:#fff;border-radius:18px;padding:34px 40px;box-shadow:0 18px 40px rgba(7,48,119,.16)}.cta-icon{display:grid;place-items:center;width:58px;height:58px;border-radius:16px;background:rgba(255,255,255,.12)}.cta-inner h2{font-size:1.7rem;margin:0 0 7px;letter-spacing:-.03em}.cta-inner p{color:#c8d9f3;max-width:800px;margin:0;font-size:.85rem;line-height:1.55}.cta-inner>a{display:flex;align-items:center;gap:8px;background:var(--orange);border-radius:8px;padding:14px 20px;font-size:.82rem;font-weight:850;white-space:nowrap}

/* Internal pages */
.page-hero,.editorial-hero{padding:75px 0;background:linear-gradient(180deg,#f8fbff,#fff);border-bottom:1px solid #e4eaf3}.page-hero h1,.editorial-hero h1,.category-hero h1,.tool-hero h1{color:var(--navy);font-size:clamp(2.5rem,4vw,4.2rem);letter-spacing:-.055em;line-height:1.02;margin:12px 0 18px}.page-hero>.container>p,.editorial-hero p{color:var(--muted);font-size:1.08rem;line-height:1.7;max-width:820px}.engine-hero{padding-bottom:88px}.universal-engine{margin-top:36px}.universal-engine form,.verifier-box form{padding:24px;background:#fff;border:1px solid #d7e1ef;border-radius:14px;box-shadow:var(--shadow)}.universal-engine form label,.verifier-box form label{display:block;color:var(--navy);font-size:.8rem;font-weight:800;margin-bottom:9px}.universal-engine form>div,.verifier-box form>div{height:62px;display:flex;align-items:center;border:1px solid #bfcce0;border-radius:9px;overflow:hidden}.universal-engine form svg,.verifier-box form svg{margin-left:18px;color:#8a98ad}.universal-engine input,.verifier-box input{flex:1;min-width:0;height:100%;border:0;outline:0;padding:0 15px;font-size:1.05rem;color:var(--navy)}.universal-engine form button,.verifier-box form button{align-self:stretch;border:0;background:var(--orange);color:#fff;padding:0 27px;font-weight:850;display:flex;align-items:center;gap:8px}.query-examples{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:13px 24px}.query-examples span{font-size:.72rem;color:#77849a}.query-examples button{border:1px solid #dbe4f0;background:#fff;color:#54627a;border-radius:18px;padding:6px 10px;font-size:.69rem}.engine-result{display:grid;grid-template-columns:1fr 1fr;gap:24px;background:#fff;border:1px solid #cfe0f5;border-left:5px solid var(--blue);border-radius:12px;padding:25px 28px;margin-top:16px;box-shadow:var(--shadow)}.engine-result>div>span{display:flex;align-items:center;gap:6px;color:var(--green);font-size:.7rem;font-weight:800}.engine-result h2{font-size:1rem;margin:10px 0;color:var(--navy)}.engine-result>div>strong{font-size:2.6rem;color:var(--blue)}.engine-formula{border-left:1px solid var(--line);padding-left:25px}.engine-formula>span{display:block;color:#78859a;font-size:.7rem}.engine-formula b{display:block;margin:9px 0 15px;color:#35455f}.engine-formula a{display:flex;align-items:center;gap:6px;color:var(--blue);font-size:.74rem;font-weight:800}.engine-formula a svg{width:15px}.engine-fallback{display:flex;gap:15px;background:#fff8ed;border:1px solid #ffd7a7;border-radius:12px;padding:22px;margin-top:16px}.engine-fallback svg{color:#d98618;flex:0 0 24px}.engine-fallback h2{font-size:1rem;color:#633f08;margin:0 0 6px}.engine-fallback p{font-size:.8rem;color:#795b2b;line-height:1.6;margin:0}.compact-categories .category-card{min-height:92px}.verifier-box{margin-top:36px}.verify-result{display:flex;gap:18px;background:#fff;border:1px solid #dce5f1;border-radius:12px;padding:25px;margin-top:16px;box-shadow:var(--shadow)}.verify-result>svg{width:30px;height:30px}.verify-result.correct>svg{color:var(--green)}.verify-result.incorrect>svg{color:#d63838}.verify-result span{display:block;font-weight:850;color:var(--navy);font-size:1rem}.verify-result strong{display:block;font-size:1.7rem;margin:12px 0 5px;color:var(--blue)}.verify-result p{color:var(--muted);font-size:.8rem;margin:0}.editorial-note{border-left:3px solid #87aee3;padding:10px 18px;margin-top:25px}.editorial-note strong{font-size:.8rem;color:var(--navy)}.editorial-note p{font-size:.78rem;color:var(--muted);line-height:1.6;margin:5px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;color:#7a879b;font-size:.72rem;margin-bottom:30px}.breadcrumb a{color:var(--blue)}.category-hero{padding:55px 0 62px;background:linear-gradient(135deg,#f6faff,#fff);border-bottom:1px solid #e2e9f2}.category-title{display:flex;align-items:flex-start;gap:22px}.category-title>span{display:grid;place-items:center;width:66px;height:66px;flex:0 0 66px;border-radius:18px;background:#eaf3ff;color:var(--blue)}.category-title>span svg{width:31px;height:31px}.category-title em{font-size:.72rem;color:var(--blue);font-style:normal;font-weight:800;text-transform:uppercase;letter-spacing:.1em}.category-title h1{font-size:clamp(2.5rem,4vw,3.8rem);margin:7px 0 12px}.category-title p{max-width:790px;color:var(--muted);line-height:1.65;margin:0}.category-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(400px,.75fr);gap:70px;align-items:start}.category-main h2{font-size:2rem;color:var(--navy);letter-spacing:-.035em;margin:0 0 22px}.tool-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.tool-list>a{display:flex;align-items:flex-start;gap:13px;position:relative;padding:19px;border:1px solid var(--line);border-radius:11px;background:#fff}.tool-list>a:hover{border-color:#aac3e9;box-shadow:0 8px 18px rgba(20,48,91,.07)}.tool-list>a>span{color:#adc0d9;font-size:.72rem;font-weight:900}.tool-list strong{color:var(--navy);font-size:.84rem}.tool-list p{color:#6c7890;font-size:.68rem;line-height:1.5;margin:5px 22px 0 0}.tool-list svg{position:absolute;right:13px;top:17px;width:15px;color:#9cafc7}.category-aside{position:sticky;top:100px}.category-aside .calculator-shell{display:block}.category-aside .calculator-inputs{border:0;padding:23px}.category-aside .result-panel{padding:23px;border-top:1px solid var(--line)}.category-aside .result-actions,.category-aside .calculation-steps{display:none}.category-aside .big-result{font-size:2.4rem}.aside-title{display:flex;gap:10px;align-items:center;margin-bottom:12px}.aside-title svg{color:var(--green)}.aside-title strong{display:block;color:var(--navy);font-size:.88rem}.aside-title p{font-size:.7rem;color:var(--muted);margin:2px 0}.category-method{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.category-method>div p{color:var(--muted);line-height:1.7}.category-method ol{list-style:none;padding:0;margin:0;display:grid;gap:13px}.category-method li{display:flex;gap:14px;background:#fff;border:1px solid var(--line);padding:16px;border-radius:11px}.category-method li>b{display:grid;place-items:center;width:32px;height:32px;flex:0 0 32px;background:#eaf3ff;color:var(--blue);border-radius:9px}.category-method li span{color:#6a778d;font-size:.75rem}.category-method li strong{display:block;color:var(--navy);font-size:.82rem;margin-bottom:3px}
.tool-hero{padding:38px 0 62px;background:linear-gradient(180deg,#f9fbff,#fff);border-bottom:1px solid #e3eaf4}.tool-intro{display:grid;grid-template-columns:1fr 330px;gap:60px;align-items:center;margin-bottom:30px}.tool-intro h1{font-size:clamp(2.4rem,4.2vw,4rem);margin:10px 0 13px}.direct-answer{font-size:1.08rem;line-height:1.65;color:#53627a;max-width:850px;margin:0}.tool-intro aside{display:flex;gap:12px;padding:18px;border:1px solid #cfe0f0;border-radius:12px;background:#fff}.tool-intro aside>svg{color:var(--green);flex:0 0 26px}.tool-intro aside span{font-size:.71rem;color:#6b7990;line-height:1.5}.tool-intro aside strong{display:block;color:var(--navy);font-size:.8rem;margin-bottom:3px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:85px;align-items:start}.calculation-article{max-width:900px}.calculation-article>section{padding:0 0 52px;margin-bottom:52px;border-bottom:1px solid #e2e8f1}.calculation-article h2{font-size:1.85rem;color:var(--navy);letter-spacing:-.03em;margin:0 0 18px}.calculation-article p{color:#59677f;line-height:1.78;font-size:.96rem}.formula-display{position:relative;border-left:4px solid var(--blue);background:#f2f7fe;border-radius:0 12px 12px 0;padding:23px 28px;margin:20px 0}.formula-display svg{position:absolute;right:20px;top:18px;color:#c4d6ed}.formula-display strong{font-size:1.2rem;color:#173b72}.worked-example{border:1px solid #dbe4f0;border-radius:13px;overflow:hidden}.worked-example>div{display:grid;grid-template-columns:125px 1fr;gap:18px;padding:16px 20px;border-bottom:1px solid #e5ebf3}.worked-example>div:last-child{border:0}.worked-example span{color:#748198;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800}.worked-example p{margin:0;color:#33435e;font-size:.82rem}.worked-example .example-result{background:#eef6ff;align-items:center}.example-result strong{color:var(--blue);font-size:1.45rem}.tip-box,.warning-box{display:flex;gap:13px;padding:19px;border-radius:11px;margin:22px 0}.tip-box{background:#f0f7ff;border:1px solid #d8e8fb}.tip-box svg{color:var(--blue);flex:0 0 23px}.tip-box strong{color:var(--navy);font-size:.8rem}.tip-box p,.warning-box p{font-size:.78rem;line-height:1.6;margin:3px 0 0}.warning-box{background:#fff8eb;border:1px solid #f6dcad}.warning-box svg{color:#c47a08;flex:0 0 23px}.warning-box p{color:#72541f;margin:0}.verify-steps{list-style:none;padding:0;display:grid;gap:10px}.verify-steps li{display:flex;gap:12px;align-items:flex-start;color:#59677e}.verify-steps b{display:grid;place-items:center;width:29px;height:29px;flex:0 0 29px;border-radius:50%;background:#eaf3ff;color:var(--blue);font-size:.72rem}.verify-steps span{font-size:.85rem;line-height:1.6}.verify-steps a{color:var(--blue);text-decoration:underline}.article-aside{position:sticky;top:100px;display:grid;gap:14px}.aside-card{border:1px solid #dbe4f0;border-radius:13px;padding:22px;background:#fff}.aside-card>strong{color:var(--navy);font-size:.9rem}.aside-card dl{margin:16px 0 0}.aside-card dl div{padding:11px 0;border-top:1px solid #e9edf3}.aside-card dt{color:#8793a6;font-size:.63rem;text-transform:uppercase;letter-spacing:.07em}.aside-card dd{color:#34435c;font-size:.73rem;margin:4px 0 0;line-height:1.45}.method-card{background:#f5f9ff}.method-card>svg{color:var(--green);margin-bottom:10px}.method-card p{font-size:.73rem;color:var(--muted);line-height:1.6}.method-card a{display:flex;align-items:center;gap:5px;color:var(--blue);font-size:.7rem;font-weight:800}.method-card a svg{width:14px}.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.related-grid a{position:relative;background:#fff;border:1px solid var(--line);border-radius:11px;padding:20px}.related-grid strong{color:var(--navy);font-size:.84rem}.related-grid p{font-size:.68rem;line-height:1.5;color:#6c7990;margin:7px 20px 0 0}.related-grid>a>svg{position:absolute;right:14px;top:18px;width:15px;color:#97abc6}
.editorial-hero h1{max-width:900px}.editorial-layout{display:grid;grid-template-columns:minmax(0,850px) 320px;gap:110px;align-items:start}.editorial-layout article section{position:relative;padding-left:65px;margin-bottom:58px}.section-number{position:absolute;left:0;top:0;color:#b7c9df;font-size:1rem;font-weight:900}.editorial-layout article h2{font-size:1.65rem;color:var(--navy);margin:0 0 16px;letter-spacing:-.025em}.editorial-layout article p{color:#5c6a80;font-size:.94rem;line-height:1.8}.editorial-layout ul{list-style:none;padding:0;display:grid;gap:10px}.editorial-layout li{display:flex;align-items:flex-start;gap:8px;color:#40506a;font-size:.82rem}.editorial-layout li svg{width:17px;color:var(--green);flex:0 0 17px}.editorial-layout aside{position:sticky;top:100px;background:linear-gradient(145deg,#071d49,#0b3f91);color:#fff;border-radius:17px;padding:27px}.editorial-layout aside>strong{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:#91b7ec}.editorial-layout blockquote{font-size:1.5rem;font-weight:800;line-height:1.45;margin:20px 0;color:#fff}.editorial-layout aside a{display:flex;align-items:center;gap:7px;color:#fff;font-size:.75rem;font-weight:800}.editorial-layout aside a svg{width:15px}.formula-index{display:grid;gap:50px}.formula-index section h2{color:var(--navy);font-size:1.6rem}.formula-index section>div{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.formula-index a{display:grid;gap:8px;border:1px solid var(--line);border-radius:10px;padding:16px}.formula-index strong{font-size:.8rem;color:var(--navy)}.formula-index code{font-family:inherit;color:#64738b;font-size:.68rem}.example-library{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.example-library a{border:1px solid var(--line);border-radius:11px;padding:20px;background:#fff}.example-library span{display:block;color:#61708a;font-size:.72rem}.example-library strong{display:block;color:var(--blue);font-size:1.5rem;margin:15px 0 8px}.example-library code{font-family:inherit;color:#7a879b;font-size:.66rem}.not-found{min-height:70vh;display:grid;place-items:center;text-align:center;padding:80px 20px}.not-found>div{max-width:700px}.not-found>div>svg{width:52px;height:52px;color:var(--blue)}.not-found span{display:block;color:var(--orange);font-size:.75rem;font-weight:850;text-transform:uppercase;letter-spacing:.12em;margin:16px}.not-found h1{color:var(--navy);font-size:3rem;letter-spacing:-.05em;margin:0}.not-found p{color:var(--muted);line-height:1.7}.not-found .button-row{justify-content:center;margin-top:25px}

.source-box{display:flex;gap:14px;padding:20px;border:1px solid #cfe4d7;border-radius:11px;background:#f2fbf5}.source-box>svg{color:var(--green);flex:0 0 23px}.source-box a{display:block;color:#126b3b;font-size:.84rem;font-weight:800;text-decoration:underline}.source-box span{display:block;color:#567263;font-size:.72rem;line-height:1.55;margin-top:5px}

/* Fiches de référence */
.answer-highlight{font-size:1.08rem!important;color:#263c60!important;font-weight:720;border-left:4px solid var(--orange);padding:4px 0 4px 18px;margin:0 0 22px!important}.method-steps{list-style:none;padding:0;margin:0;display:grid;gap:12px}.method-steps li{display:flex;gap:15px;padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}.method-steps li>b{display:grid;place-items:center;flex:0 0 34px;height:34px;border-radius:10px;background:#eaf3ff;color:var(--blue);font-size:.78rem}.method-steps strong{display:block;color:var(--navy);font-size:.87rem}.method-steps p{margin:4px 0 0!important;font-size:.78rem!important;line-height:1.6!important}.worked-examples{display:grid;grid-template-columns:1fr 1fr;gap:14px}.worked-examples article{display:flex;flex-direction:column;min-height:215px;padding:20px;border:1px solid #d9e3f0;border-radius:13px;background:#fff}.worked-examples article>span{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;font-weight:850;color:var(--blue)}.worked-examples p{font-size:.76rem!important;line-height:1.55!important;margin:13px 0!important}.worked-examples code{display:block;color:#566982;font-family:inherit;font-size:.72rem;line-height:1.55;padding:11px;background:#f4f7fb;border-radius:8px}.worked-equation{margin-top:9px;padding:10px 11px;border:1px solid #d7e7fb;border-radius:8px;background:#eef6ff}.worked-equation small{display:block;margin-bottom:5px;color:#60748f;font-size:.6rem;font-weight:850;text-transform:uppercase;letter-spacing:.07em}.worked-examples .worked-equation code{padding:0;background:transparent;color:#173b72;font-weight:800}.worked-examples strong{display:block;color:var(--blue);font-size:1.35rem;margin-top:auto;padding-top:16px}.mistake-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.mistake-list li{display:flex;align-items:flex-start;gap:12px;padding:15px 17px;border:1px solid #f0d7d7;background:#fff9f9;border-radius:10px}.mistake-list li>span{display:grid;place-items:center;flex:0 0 25px;height:25px;border-radius:50%;background:#ffe8e8;color:#b42f2f;font-size:.72rem;font-weight:900}.mistake-list p{margin:1px 0 0!important;font-size:.79rem!important;line-height:1.55!important;color:#685454!important}.faq-list{display:grid;gap:10px}.faq-list details{border:1px solid var(--line);border-radius:11px;background:#fff;padding:0 18px}.faq-list summary{cursor:pointer;list-style:none;color:var(--navy);font-size:.84rem;font-weight:800;padding:17px 32px 17px 0;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:2px;top:13px;color:var(--blue);font-size:1.25rem}.faq-list details[open] summary:after{content:'−'}.faq-list details p{font-size:.79rem!important;line-height:1.65!important;margin:0 0 17px!important}.aside-card a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}.editorial-actions{display:flex;gap:10px;flex-wrap:wrap;margin:15px 0 55px}.editorial-actions a{font-size:.75rem}.calculation-article .external-resources{padding:0}

/* Ressources éditoriales externes */
.external-resources>h2{font-size:1.85rem;color:var(--navy);letter-spacing:-.03em;margin:0 0 10px}.external-resources>p{max-width:820px;color:var(--muted);font-size:.9rem;line-height:1.7;margin:0 0 20px}.external-resource-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.external-resource-grid>a{position:relative;display:block;min-height:118px;padding:20px 42px 18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:border-color .2s,box-shadow .2s,transform .2s}.external-resource-grid>a:hover{border-color:#a9c4eb;box-shadow:0 10px 24px rgba(20,48,91,.08);transform:translateY(-2px)}.external-resource-grid strong{display:block;color:var(--navy);font-size:.86rem;margin-bottom:7px}.external-resource-grid span{display:block;color:#68768c;font-size:.73rem;line-height:1.55}.external-resource-grid b{position:absolute;right:18px;top:18px;color:var(--blue);font-size:.9rem}.calculation-article .external-resources>h2{font-size:1.85rem}.calculation-article .external-resources>p{font-size:.9rem}.complementary-resources{padding-top:0}

/* Footer */
.site-footer{background:#fff;padding:65px 0 25px;border-top:1px solid #e1e7f0}.footer-grid{width:min(1480px,calc(100% - 64px));margin:auto;display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:70px}.footer-grid>div:first-child p{max-width:330px;color:#6d7a90;font-size:.76rem;line-height:1.65;margin:17px 0}.network-note{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.7rem;line-height:1.5;color:#8995a8}.network-note a{color:inherit;font-size:inherit;font-weight:750}.footer-separator{color:#c0c9d6}.footer-grid h2{font-size:.77rem;color:var(--navy);margin:3px 0 15px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:9px}.footer-grid>div:not(:first-child) a{font-size:.72rem;color:#66748a}.footer-grid a:hover{color:var(--blue)}.footer-bottom{width:min(1480px,calc(100% - 64px));margin:48px auto 0;padding-top:20px;border-top:1px solid #e7ebf2;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#8a95a7;font-size:.65rem}.footer-bottom div{display:flex;gap:18px}

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/* Registres et preuves de la version 1.5 */
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