:root{
  --bg:#07111f;
  --bg-soft:#0b1728;
  --surface:rgba(255,255,255,.065);
  --surface-strong:rgba(255,255,255,.1);
  --line:rgba(255,255,255,.11);
  --text:#f7fbff;
  --muted:#a9b7c8;
  --accent:#79f2c0;
  --accent-2:#7aa7ff;
  --accent-3:#b887ff;
  --danger:#ff8f9c;
  --shadow:0 24px 70px rgba(0,0,0,.32);
  --radius:24px;
  --radius-sm:16px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 15%,rgba(122,167,255,.17),transparent 34rem),
    radial-gradient(circle at 88% 12%,rgba(184,135,255,.15),transparent 30rem),
    radial-gradient(circle at 52% 88%,rgba(121,242,192,.1),transparent 32rem),
    var(--bg);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.22;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,black,transparent 82%);
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 32px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid transparent;background:rgba(7,17,31,.66);backdrop-filter:blur(18px);transition:.25s ease}
.site-header.scrolled{border-color:var(--line);background:rgba(7,17,31,.9)}
.nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.03em}
.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,var(--accent),var(--accent-2) 54%,var(--accent-3));color:#07111f;font-size:18px;font-weight:950;box-shadow:0 12px 30px rgba(122,167,255,.22)}
.brand small{display:block;color:var(--muted);font-weight:650;font-size:10px;letter-spacing:.12em;text-transform:uppercase;margin-top:-4px}
.nav{display:flex;align-items:center;gap:6px}
.nav a{padding:10px 13px;border-radius:12px;color:var(--muted);font-weight:700;font-size:14px}
.nav a:hover,.nav a[aria-current="page"]{background:var(--surface);color:var(--text)}
.menu-btn{display:none;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;width:44px;height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 18px;border-radius:14px;border:1px solid var(--line);background:var(--surface);color:var(--text);font-weight:800;transition:.2s ease}
.btn:hover{transform:translateY(-1px);background:var(--surface-strong)}
.btn-primary{color:#06121c;border-color:transparent;background:linear-gradient(135deg,var(--accent),#9ff6d5 45%,var(--accent-2));box-shadow:0 14px 35px rgba(121,242,192,.15)}
.btn-primary:hover{background:linear-gradient(135deg,#91f6cd,#b1fae1 45%,#91b8ff)}
.hero{padding:88px 0 62px}
.hero-grid{display:grid;grid-template-columns:1.14fr .86fr;gap:58px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:#d9e6f3;font-weight:800;font-size:12px;letter-spacing:.04em;text-transform:uppercase}
.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 6px rgba(121,242,192,.1)}
h1,h2,h3{margin:0;line-height:1.08;letter-spacing:-.045em}
h1{font-size:clamp(42px,7vw,78px);max-width:850px;margin-top:18px}
h2{font-size:clamp(30px,4.5vw,50px)}
h3{font-size:21px}
.gradient-text{background:linear-gradient(100deg,#fff 15%,var(--accent) 42%,var(--accent-2) 72%,#fff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-copy{max-width:720px;color:var(--muted);font-size:18px;margin:22px 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;color:var(--muted);font-size:13px;font-weight:700}
.trust-row span::before{content:"✓";color:var(--accent);margin-right:7px}
.hero-orbit{position:relative;min-height:470px;border-radius:36px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.025));box-shadow:var(--shadow);overflow:hidden}
.hero-orbit::before,.hero-orbit::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.12)}
.hero-orbit::before{width:340px;height:340px;left:64px;top:64px}
.hero-orbit::after{width:230px;height:230px;left:118px;top:118px}
.core{position:absolute;inset:0;margin:auto;width:126px;height:126px;border-radius:34px;display:grid;place-items:center;text-align:center;font-weight:950;letter-spacing:-.04em;color:#06121c;background:linear-gradient(145deg,var(--accent),var(--accent-2) 60%,var(--accent-3));box-shadow:0 0 70px rgba(121,242,192,.22)}
.orbit-card{position:absolute;width:155px;padding:15px;border:1px solid var(--line);border-radius:18px;background:rgba(7,17,31,.78);backdrop-filter:blur(12px);box-shadow:0 16px 35px rgba(0,0,0,.25)}
.orbit-card b{display:block;font-size:15px}.orbit-card span{font-size:12px;color:var(--muted)}
.orbit-card:nth-of-type(1){top:34px;left:28px}.orbit-card:nth-of-type(2){top:74px;right:24px}.orbit-card:nth-of-type(3){bottom:46px;left:34px}.orbit-card:nth-of-type(4){bottom:34px;right:28px}
.section{padding:72px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head p{max-width:630px;margin:10px 0 0;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(155deg,rgba(255,255,255,.075),rgba(255,255,255,.025));box-shadow:0 16px 45px rgba(0,0,0,.14)}
.card:hover{border-color:rgba(255,255,255,.18)}
.icon-tile{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;margin-bottom:18px;background:linear-gradient(145deg,rgba(121,242,192,.16),rgba(122,167,255,.16));border:1px solid var(--line);font-size:20px}
.card p{margin:10px 0 0;color:var(--muted)}.card-link{display:inline-flex;margin-top:18px;color:var(--accent);font-weight:850;font-size:14px}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:26px;background:var(--surface);overflow:hidden}
.stat{padding:24px;text-align:center;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat strong{display:block;font-size:25px}.stat span{color:var(--muted);font-size:13px}
.feature-band{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.feature-panel{padding:30px;border:1px solid var(--line);border-radius:30px;background:linear-gradient(145deg,rgba(121,242,192,.07),rgba(122,167,255,.05))}
.feature-list{display:grid;gap:13px;margin-top:22px}.feature-item{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}
.feature-check{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:rgba(121,242,192,.12);color:var(--accent);font-weight:900}
.feature-item p{margin:3px 0 0;color:var(--muted);font-size:14px}
.cta{padding:38px;border-radius:32px;border:1px solid var(--line);background:linear-gradient(130deg,rgba(121,242,192,.12),rgba(122,167,255,.11),rgba(184,135,255,.09));display:flex;align-items:center;justify-content:space-between;gap:26px}
.cta p{margin:8px 0 0;color:var(--muted);max-width:650px}
.site-footer{padding:38px 0 28px;border-top:1px solid var(--line);margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px}.footer-copy{max-width:460px;color:var(--muted);font-size:14px}
.footer-title{font-weight:850;margin-bottom:10px}.footer-links{display:grid;gap:8px}.footer-links a{color:var(--muted);font-size:14px}.footer-links a:hover{color:var(--text)}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.page-hero{padding:64px 0 34px}.page-hero p{color:var(--muted);max-width:760px;font-size:17px}
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.tool-card{padding:24px;border:1px solid var(--line);border-radius:24px;background:var(--surface)}
.tool-card h3{margin-bottom:6px}.tool-card>p{margin:0 0 18px;color:var(--muted);font-size:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:7px;margin-bottom:12px}.field label{color:#cfdae6;font-size:13px;font-weight:750}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:13px;background:rgba(0,0,0,.18);color:var(--text);padding:12px 13px;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(121,242,192,.55);box-shadow:0 0 0 3px rgba(121,242,192,.08)}
.field textarea{min-height:108px;resize:vertical}
.result{min-height:48px;margin-top:12px;padding:12px 14px;border:1px dashed rgba(121,242,192,.36);border-radius:13px;background:rgba(121,242,192,.06);color:#eafff6;font-weight:800;word-break:break-word}
.calc-display{font-size:30px;text-align:right;font-weight:900;letter-spacing:-.03em}.calc-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.calc-keys button{min-height:48px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.06);color:var(--text);font-weight:850}.calc-keys button:hover{background:rgba(255,255,255,.11)}.calc-keys .op{color:var(--accent)}.calc-keys .equal{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#06121c;border:0}
.mini-note{margin-top:12px;color:var(--muted);font-size:12px}
.article{max-width:860px}.article h2{font-size:30px;margin:38px 0 12px}.article h3{margin:26px 0 8px}.article p,.article li{color:#c0ccda}.article ul{padding-left:22px}.article a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.notice{padding:18px 20px;border-radius:18px;border:1px solid var(--line);background:rgba(122,167,255,.07);color:#dce8f6}
.kicker{color:var(--accent);font-weight:850;text-transform:uppercase;letter-spacing:.08em;font-size:12px}
.search-tools{margin:0 0 20px;display:flex;gap:12px}.search-tools input{flex:1;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--text);padding:13px 15px;outline:none}
.hidden{display:none!important}.no-results{display:none;padding:24px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:18px}.no-results.show{display:block}
:focus-visible{outline:3px solid rgba(121,242,192,.78);outline-offset:3px}
.tool-actions{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 12px}.tool-actions .btn{min-height:40px;padding-inline:13px;font-size:13px}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(155deg,rgba(255,255,255,.075),rgba(255,255,255,.025));box-shadow:0 16px 45px rgba(0,0,0,.14)}
.guide-card h2{font-size:29px;margin:10px 0 12px}.guide-card p,.body-muted{color:var(--muted)}
.guide-tag,.status-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:7px 11px;color:#dbe7f3;font-size:12px;font-weight:800}
.status-pill{margin-top:18px}.status-pill span{width:9px;height:9px;border-radius:50%;background:#ffd166;box-shadow:0 0 0 5px rgba(255,209,102,.1)}
.app-showcase{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
.breadcrumb{display:block;color:var(--muted);font-size:13px;font-weight:800;margin-bottom:16px}.breadcrumb::before{content:'← ';color:var(--accent)}
.article-meta{margin-top:18px;color:var(--muted);font-size:13px}.guide-article a{color:var(--accent);font-weight:750;text-decoration:underline;text-decoration-color:rgba(121,242,192,.35);text-underline-offset:3px}
.formula{margin:18px 0;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:rgba(0,0,0,.2);color:#eafff6;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow-wrap:anywhere}.guide-article .notice a{color:var(--accent)}
@media (max-width:920px){.hero-grid,.feature-band{grid-template-columns:1fr}.hero-orbit{min-height:410px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.guide-grid{grid-template-columns:1fr 1fr}.app-showcase{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media (max-width:720px){.container{width:min(100% - 22px,var(--max))}.menu-btn{display:grid;place-items:center}.nav{display:none;position:absolute;left:11px;right:11px;top:68px;padding:10px;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:18px;background:rgba(7,17,31,.98);box-shadow:var(--shadow)}.nav.open{display:flex}.nav a{padding:12px 13px}.hero{padding:58px 0 38px}.hero-grid{gap:34px}.hero-orbit{min-height:360px}.hero-orbit::before{width:280px;height:280px;left:50%;top:40px;transform:translateX(-50%)}.hero-orbit::after{width:190px;height:190px;left:50%;top:85px;transform:translateX(-50%)}.orbit-card{width:136px;padding:12px}.orbit-card:nth-of-type(1){top:18px;left:12px}.orbit-card:nth-of-type(2){top:45px;right:10px}.orbit-card:nth-of-type(3){bottom:28px;left:12px}.orbit-card:nth-of-type(4){bottom:20px;right:12px}.section{padding:52px 0}.section-head{align-items:start;flex-direction:column}.grid-3,.grid-4,.tool-grid,.stat-strip,.guide-grid{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid var(--line)}.stat:last-child{border-bottom:0}.form-row{grid-template-columns:1fr}.cta{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}