:root{
 --bg:#07111b;--panel:#0f1f2d;--surface:#132737;--surface2:#193447;
 --white:#effaf7;--dim:#b6cbd0;--muted:#83a0a7;--line:#244353;
 --accent:#b4f17e;--accent2:#60debc;--accent3:#8abbff;--shadow:0 16px 60px rgba(1,8,14,.32)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--white);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;letter-spacing:-.015em}
body::before{content:"";position:absolute;top:0;left:0;right:0;height:850px;z-index:-1;background:radial-gradient(ellipse at 74% 7%,rgba(78,187,165,.12),transparent 47%),radial-gradient(ellipse at 12% 35%,rgba(89,130,210,.09),transparent 42%);pointer-events:none}
a{color:inherit;text-decoration:none}button,input,select{font:inherit}
button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}
img,svg{max-width:100%}input,select{min-width:0}
::selection{background:#a9f28b;color:#0b1b18}
.wrap{width:min(1160px,calc(100% - 44px));margin:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link{position:absolute;top:-100px;left:12px;background:var(--accent);color:#061510;padding:9px 15px;z-index:20}
.skip-link:focus{top:12px}
.site-header{position:relative;z-index:10;border-bottom:1px solid rgba(174,218,215,.09)}
.header-inner{display:flex;align-items:center;min-height:88px;gap:26px}
.logo{display:inline-flex;align-items:center;gap:11px;font-size:23px;font-weight:850;letter-spacing:-.065em;white-space:nowrap}
.logo .dot{color:var(--accent)}.logo-mark{display:grid;place-items:center;width:36px;height:36px;border:2px solid var(--accent);border-radius:12px;transform:rotate(-11deg);font-size:22px;line-height:1;color:var(--accent)}
.logo-mark span{display:block;transform:rotate(11deg)}
.nav-links{margin-left:auto;display:flex;gap:32px;align-items:center;color:var(--dim);font-size:14px;font-weight:650}
.nav-links a:hover,.footer-links a:hover{color:var(--accent)}.nav-cta{background:var(--accent);color:#10251f;padding:11px 18px;border-radius:12px;font-size:14px;font-weight:800;white-space:nowrap}
.nav-cta:hover,.btn-primary:hover{background:#d3ffaa;transform:translateY(-1px)}
.mobile-nav{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);color:var(--white);border-radius:10px;padding:8px}
.hero{display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:50px;min-height:540px;padding-top:55px;padding-bottom:65px}
.kicker{display:inline-flex;align-items:center;gap:9px;padding:8px 13px;border:1px solid rgba(176,234,193,.22);border-radius:50px;background:rgba(105,180,136,.07);color:#bceab9;font-weight:800;font-size:12px;letter-spacing:.10em;text-transform:uppercase}
.live-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 5px rgba(180,241,126,.11)}
h1,h2,h3{font-weight:820;line-height:1.12;letter-spacing:-.055em}
h1{font-size:clamp(44px,5.2vw,73px);margin:25px 0 22px}
h1 em,.gradient-title{font-style:normal;background:linear-gradient(100deg,var(--accent),#7fded0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{font-size:18px;color:var(--dim);max-width:535px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:800;border-radius:13px;padding:14px 21px;border:1px solid transparent;transition:background .2s,transform .2s;text-align:center}
.btn-primary{background:var(--accent);color:#0f2019}.btn-secondary{background:rgba(255,255,255,.035);color:var(--white);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--accent2);background:rgba(96,222,188,.07)}
.hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
.hero-meta span::before{content:"✓";color:var(--accent);margin-right:7px}
.showcase{position:relative;min-height:405px;display:flex;align-items:center}
.showcase::before{content:"";position:absolute;left:8%;right:0;top:0;bottom:0;border:1px solid rgba(100,199,178,.09);border-radius:40px;transform:rotate(4deg)}
.preview-card{position:relative;width:100%;background:linear-gradient(160deg,#193545,#0e1e2d 65%);border:1px solid #335564;border-radius:22px;padding:22px;box-shadow:var(--shadow);transform:rotate(-1.5deg)}
.preview-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:17px}
.preview-label{color:var(--accent);font-weight:750;font-size:12px}.tag{border:1px solid #355762;padding:6px 10px;border-radius:100px;font-size:11px;color:var(--dim)}
.preview-stage{height:235px;display:grid;place-items:center;position:relative;background:radial-gradient(ellipse at center,#21475a 0%,#122938 53%,#0b202d 80%);border:1px solid #284553;border-radius:16px;overflow:hidden}
.preview-stage::before{content:"";position:absolute;inset:10px;background-image:linear-gradient(#5277871d 1px,transparent 1px),linear-gradient(90deg,#5277871d 1px,transparent 1px);background-size:25px 25px;transform:perspective(500px) rotateX(45deg) scale(1.5);opacity:.6}
.preview-shape{width:145px;height:145px;filter:drop-shadow(0 14px 25px rgba(35,246,180,.19));animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-9px) rotate(3deg)}}
.preview-footer{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:16px}
.mini-stat{border:1px solid #2b4d5d;border-radius:10px;padding:10px 12px;background:#0f2835}
.mini-stat small{display:block;color:#91b3b9;font-size:10px}.mini-stat strong{font-size:16px}
.section{padding:65px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:26px}
.eyebrow{font-size:12px;font-weight:850;letter-spacing:.15em;text-transform:uppercase;color:var(--accent2)}
.section-title{font-size:clamp(28px,3.5vw,43px);margin:10px 0 6px}
.section-text{color:var(--dim);max-width:610px;margin:6px 0}
.tool-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:16px}
.tool-card{min-width:0;position:relative;padding:25px;min-height:260px;border-radius:20px;background:linear-gradient(150deg,#142a37,#0c1d29);border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.tool-card.featured{background:linear-gradient(140deg,#1e403a,#122a32 69%);border-color:#3b705f}
.tool-card.active:hover{transform:translateY(-3px);border-color:var(--accent2);transition:.2s}
.card-label{font-size:12px;font-weight:800;color:var(--accent2);text-transform:uppercase;letter-spacing:.1em}
.card-icon{font-size:38px;line-height:1;display:block;margin-bottom:18px}
.tool-card h3{font-size:23px;margin:0 0 12px}.tool-card p{color:var(--dim);margin:0;font-size:14px}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:24px;color:var(--accent);font-weight:750;font-size:13px}
.card-foot .soon{color:var(--muted);font-weight:650}
.finder{margin:30px 0 0;background:var(--panel);border:1px solid var(--line);padding:16px;border-radius:16px}
.searchbox{display:flex;align-items:center;gap:11px;border:1px solid #2b5360;background:#102635;border-radius:10px;padding:12px 14px}
.searchbox input{background:none;border:0;outline:0;color:var(--white);width:100%}
.searchbox input::placeholder{color:var(--muted)}
.filter-row{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:12px}
.filter{padding:6px 12px;background:#132f3b;color:var(--dim);border:1px solid #2a4c59;border-radius:30px;font-size:12px}
.filter[aria-pressed=true]{color:#082016;background:var(--accent);border-color:var(--accent);font-weight:800}
.no-matches{display:none;color:var(--muted);padding:22px 4px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.step{padding:24px;background:#102333;border:1px solid var(--line);border-radius:18px}
.step-number{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#25473f;color:var(--accent);font-weight:850;margin-bottom:16px}
.step h3{font-size:19px;margin:0 0 8px}.step p{color:var(--dim);margin:0;font-size:14px}
.learn-strip{margin-top:25px;border:1px solid #365c4d;border-radius:20px;padding:29px;background:linear-gradient(115deg,#16372f,#102333);display:flex;align-items:center;justify-content:space-between;gap:25px}
.learn-strip h3{font-size:24px;margin:0 0 8px}.learn-strip p{color:var(--dim);margin:0}
.site-footer{margin-top:60px;border-top:1px solid var(--line);padding:30px 0 38px;color:var(--muted)}
.footer-inner{display:flex;align-items:center;gap:25px;justify-content:space-between}
.footer-links{display:flex;gap:22px;font-size:13px}
.footer-note{font-size:12px}
.breadcrumb{font-size:13px;color:var(--muted);margin:28px 0}.breadcrumb a:hover{color:var(--accent)}
.tool-hero{padding:22px 0 34px}.tool-hero h1{font-size:clamp(34px,4.2vw,58px);max-width:900px;margin:13px 0}
.tool-hero p{color:var(--dim);font-size:17px;max-width:790px}
.calculator{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:20px;align-items:start}
.calc-panel{background:linear-gradient(155deg,#142c38,#0d202c);border:1px solid var(--line);border-radius:20px;padding:25px;min-width:0}
.panel-title{font-size:20px;margin:0 0 18px}.upload{border:1.5px dashed #58816e;background:rgba(130,225,166,.055);padding:34px 22px;text-align:center;border-radius:16px;transition:.2s;display:block;cursor:pointer}
.upload.dragover{background:rgba(165,231,124,.12);border-color:var(--accent)}
.upload-graphic{width:61px;height:61px;border-radius:18px;background:#284e40;color:var(--accent);display:grid;place-items:center;margin:0 auto 13px}
.upload h3{margin:0;font-size:20px}.upload p{font-size:13px;color:var(--dim);margin:5px 0 13px}
.upload strong{color:var(--accent);font-size:14px}
.upload-note{font-size:12px;color:var(--muted);margin-top:12px}
.file-state{margin-top:14px;display:none;border:1px solid #376457;background:#17362f;border-radius:12px;padding:12px;font-size:13px;overflow-wrap:anywhere}
.file-state.visible{display:block}.file-state.error{border-color:#975b61;background:#34242e;color:#ffc4c4}
.settings-title{font-size:14px;font-weight:850;color:var(--dim);margin:24px 0 11px}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.field{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:750;color:var(--dim)}
.field input,.field select{width:100%;background:#0c1d2a;color:var(--white);border:1px solid #355564;border-radius:10px;padding:11px 12px;outline:none;min-height:44px}
.field input:focus,.field select:focus{border-color:var(--accent)}
.field.wide{grid-column:1/-1}.hint{font-size:11px;font-weight:400;color:var(--muted)}
.inline-unit{display:flex;align-items:center;gap:8px}
.calc-results{position:sticky;top:18px}
.result-highlight{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:15px 0 20px}
.result-main{border:1px solid #416952;border-radius:15px;background:#1e4039;padding:15px}
.result-main.alt{background:#1a3241;border-color:#355b70}
.result-main small{display:block;color:#b6d5ca;font-size:12px}
.result-main strong{display:block;font-size:clamp(23px,2.8vw,35px);color:var(--accent);letter-spacing:-.04em;line-height:1.25;margin-top:8px}
.result-main.alt strong{color:#9bc8ff}
.metric-list{display:grid;gap:0;margin:3px 0 0}
.metric{border-bottom:1px solid var(--line);padding:11px 0;display:flex;align-items:baseline;justify-content:space-between;gap:15px}
.metric:last-child{border-bottom:0}.metric dt{color:var(--dim);font-size:13px}.metric dd{margin:0;font-size:15px;font-weight:750;text-align:right}
.callout{background:rgba(111,177,209,.08);border-left:3px solid #67b4d1;padding:13px 16px;border-radius:8px;color:var(--dim);font-size:13px;margin-top:17px}
.callout.warn{border-color:#d5a366;background:rgba(220,165,78,.09)}.calc-error{color:#ffbec5;font-weight:700}
.calc-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:16px}.calc-actions button{flex:1}
.disclosure{margin:25px 0 0}.disclosure summary{cursor:pointer;font-weight:750;color:var(--accent)}
.article{max-width:850px;margin:auto;padding:15px 0 30px}
.article h1{font-size:clamp(32px,4.5vw,55px)}.article h2{font-size:28px;margin:39px 0 14px}.article h3{font-size:20px;margin:26px 0 9px}
.article p,.article li{color:var(--dim)}.article a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article ul{padding-left:22px}.article .lead{font-size:19px}.article .formula{background:#122b36;padding:18px;border-left:3px solid var(--accent);border-radius:8px;overflow-wrap:anywhere}
.faq{margin-top:34px}.faq details{padding:16px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:800}
.faq details p{color:var(--dim);font-size:14px}
.notice{margin:15px 0;background:#152e3c;border:1px solid #32616e;border-radius:12px;padding:13px 17px;color:var(--dim);font-size:13px}
@media(max-width:1000px){.hero{gap:25px}.tool-grid{grid-template-columns:1fr 1fr}.tool-card.featured{grid-column:1/-1;min-height:220px}}
@media(max-width:780px){
 .header-inner{min-height:74px}.nav-links{display:none}.nav-cta{margin-left:auto}.mobile-nav{display:none}
 .hero{grid-template-columns:1fr;padding-top:37px;gap:15px}.showcase{min-height:300px;max-width:550px}.preview-stage{height:180px}
 .tool-grid,.steps,.calculator{grid-template-columns:1fr}.tool-card.featured{grid-column:auto}
 .section{padding:43px 0}.calc-results{position:static}
 .footer-inner{flex-wrap:wrap}
}
@media(max-width:530px){
 .wrap{width:min(100% - 28px,1160px)}.logo{font-size:21px}.nav-cta{padding:9px 12px;font-size:12px}
 .hero{min-height:0}.hero h1{font-size:43px}.hero-desc{font-size:16px}.hero-meta{gap:9px 15px}
 .preview-card{padding:14px;transform:none}.showcase{min-height:330px}.mini-stat{padding:7px}.mini-stat strong{font-size:13px}
 .section-head{display:block}.tool-card{min-height:220px}
 .learn-strip{align-items:start;flex-direction:column}.step{padding:19px}.calc-panel{padding:16px}
 .result-highlight{grid-template-columns:1fr 1fr}.result-main strong{font-size:22px}.field-grid{gap:10px}.field{font-size:12px}
 .footer-links{gap:13px;flex-wrap:wrap}.site-footer{margin-top:40px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;scroll-behavior:auto!important}}

/* Explicitly hide filtered cards; author-level display:flex otherwise overrides [hidden]. */
.tool-card[hidden]{display:none!important}


/* WCAG-readable controls; in articles an anchor selector previously overrode buttons. */
.article a.btn-primary,.article .btn-primary,.btn-primary,.nav-cta{
  background:#b4f17e!important;color:#10251f!important;text-decoration:none!important;
  border-color:#b4f17e!important;font-weight:800!important
}
.article a.btn-primary:hover,.btn-primary:hover,.nav-cta:hover{background:#d6ffb6!important;color:#0e2319!important}
.article a.btn-secondary{color:#effaf7!important;text-decoration:none!important}
.lang-switch{display:flex;align-items:center;gap:7px;margin-left:4px;white-space:nowrap;color:var(--dim);font-size:12px}
.lang-switch select{background:#152e39;color:#f0fbf4;border:1px solid #638077;border-radius:10px;padding:9px 7px;max-width:120px;cursor:pointer}
.lang-switch select:focus-visible{outline:2px solid #b4f17e;outline-offset:2px}
.lang-switch select option{background:#152e39;color:#f0fbf4}
@media(max-width:780px){.lang-switch{margin-left:auto}.nav-cta{display:none}}
@media(max-width:390px){.header-inner{gap:8px}.logo{font-size:18px}.logo-mark{width:30px;height:30px}.lang-switch select{max-width:92px;font-size:12px}}