:root{
  --bg:#08111f;
  --panel:#0f1a2e;
  --panel-soft:rgba(15,26,46,.78);
  --line:rgba(255,255,255,.09);
  --text:#e5eefc;
  --muted:#9fb0cf;
  --primary:#5eead4;
  --primary-dark:#14b8a6;
  --accent:#8b5cf6;
  --warm:#f59e0b;
  --danger:#fb7185;
  --shadow:0 20px 60px rgba(0,0,0,.28);
  --radius:24px;
  --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(94,234,212,.12), transparent 28%),
    radial-gradient(circle at top right, rgba(139,92,246,.12), transparent 24%),
    linear-gradient(180deg, #07101d 0%, #091425 100%);
  line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
.page-glow{
  position:fixed;
  inset:auto;
  width:480px;
  height:480px;
  filter:blur(80px);
  opacity:.25;
  pointer-events:none;
  z-index:-1;
}
.page-glow-left{top:90px;left:-120px;background:#0ea5e9}
.page-glow-right{top:320px;right:-160px;background:#8b5cf6}
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  backdrop-filter:blur(18px);
  background:rgba(7,16,29,.72);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:14px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
}
.brand span{display:flex;flex-direction:column;line-height:1.1}
.brand small{color:var(--muted);margin-top:4px}
.nav{
  display:flex;
  gap:18px;
  font-size:.98rem;
  color:var(--muted);
}
.nav a:hover{color:var(--text)}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  width:52px;
  height:52px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
}
.nav-toggle span{
  width:20px;
  height:2px;
  border-radius:999px;
  background:currentColor;
  transition:transform .22s ease, opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.hero{padding:56px 0 28px}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:32px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.85rem;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--primary);
  font-weight:700;
}
.hero h1{
  font-size:clamp(2em,5vw,4.3rem);
  line-height:1.03;
  margin:14px 0 18px;
  max-width:12ch;
}
.lead{
  font-size:1.1rem;
  color:var(--muted);
  max-width:62ch;
}
.hero-points,
.trust-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:0;
  margin:24px 0;
  list-style:none;
}
.hero-points span,
.trust-list li{
  padding:10px 14px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:999px;
  background:rgba(255,255,255,.04);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin:10px 0 24px;
}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:52px;
  padding:0 20px;
  border-radius:16px;
  font-weight:700;
  border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover{transform:translateY(-1px)}
.button.primary{
  background:linear-gradient(135deg,var(--primary),#67e8f9);
  color:#05222a;
}
.button.ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.08);
}
.button.full{width:100%;margin-top:10px}
.hero-art img{
  width:100%;
  filter:drop-shadow(0 20px 50px rgba(0,0,0,.25));
}
.section-heading{
  margin-bottom:24px;
}
.section-heading h2{
  margin:.4rem 0 .6rem;
  font-size:clamp(1.4rem,3.6vw,2rem);
  line-height:1.08;
}
.section-heading p,
.prose-card p,
.faq-card p,
.step-card p,
.notes-card p{
  color:var(--muted);
}
.section-heading.narrow{text-align:center;max-width:780px;margin:0 auto 28px}
.calculator-section{padding:36px 0 26px}
.calculator-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  align-items:start;
}
.card{
  background:var(--panel-soft);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.form-card{padding:24px}
.field-grid{
  display:grid;
  gap:16px;
}
.field-grid.two{grid-template-columns:1fr 1fr}
.field-group{display:grid;gap:8px;margin-bottom:18px}
label{
  font-weight:700;
  font-size:.98rem;
}
input,select,summary{
  font:inherit;
}
input[type="number"],
select{
  width:100%;
  min-height:54px;
  padding:0 16px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.1);
  background:#0a1324;
  color:var(--text);
  outline:none;
}
input[type="number"]:focus,
select:focus,
input[type="range"]:focus{border-color:rgba(94,234,212,.6)}
small{color:var(--muted)}
.advanced-box{
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;
  padding:16px;
  margin-bottom:18px;
  background:rgba(255,255,255,.02);
}
.advanced-box summary{
  cursor:pointer;
  font-weight:700;
  margin-bottom:14px;
}
.inline-range output{
  display:inline-flex;
  justify-content:center;
  width:88px;
  padding:8px 12px;
  background:#0a1324;
  border:1px solid rgba(255,255,255,.1);
  border-radius:12px;
}
input[type="range"]{width:100%}
.results-column{display:grid;gap:18px}
.result-hero{padding:24px}
.result-hero h3{margin:.4rem 0 .35rem;font-size:1.4rem}
.result-cards{display:grid;grid-template-columns:1fr;gap:16px}
.metric-card{padding:22px;position:relative;overflow:hidden}
.metric-card::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-40px;
  width:130px;
  height:130px;
  border-radius:50%;
  opacity:.16;
}
.accent-one::after{background:var(--primary)}
.accent-two::after{background:var(--accent)}
.accent-three::after{background:var(--warm)}
.metric-label{
  display:block;
  color:var(--muted);
  margin-bottom:10px;
}
.metric-card strong{
  display:block;
  font-size:clamp(1.7rem,3vw,2.5rem);
  line-height:1.05;
  margin-bottom:6px;
}
.breakdown-card{padding:22px}
.breakdown-card h3{margin-top:0}
.breakdown-list{display:grid;gap:12px}
.breakdown-list div{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.breakdown-list .total-row{
  border-bottom:none;
  padding-top:18px;
  font-weight:700;
}
.notes-card{padding:22px}
.info-section{padding:26px 0}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.step-card{padding:22px}
.step-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:14px;
  background:rgba(94,234,212,.12);
  color:var(--primary);
  font-weight:800;
}
.step-card h3{margin:14px 0 8px;font-size:1.15rem}
.content-section{padding:26px 0}
.content-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.prose-card{padding:24px}
.prose-card h2{margin:.45rem 0 .8rem}
.bullet-list{margin:0;padding-left:18px}
.bullet-list li+li{margin-top:10px}
.faq-section{padding:26px 0 56px}
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.faq-card{padding:24px}
.faq-card h3{margin-top:0}
.site-footer{
  border-top:1px solid var(--line);
  padding:22px 0 42px;
  background:rgba(3,8,17,.38);
}
.footer-grid{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
}
.footer-grid p{color:var(--muted);max-width:48ch}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  color:var(--muted);
}
.footer-links a:hover{color:var(--text)}

@media (max-width: 1080px){
  .hero-grid,
  .calculator-grid,
  .content-grid,
  .steps-grid,
  .faq-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .header-inner{position:relative}
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;
    top:calc(100% + 10px);
    right:0;
    left:0;
    display:none;
    flex-direction:column;
    gap:0;
    padding:10px;
    border:1px solid var(--line);
    border-radius:20px;
    background:rgba(7,16,29,.96);
    box-shadow:var(--shadow);
  }
  .nav.is-open{display:flex}
  .nav a{
    padding:14px 16px;
    border-radius:14px;
    color:var(--text);
  }
  .nav a + a{margin-top:4px}
  .nav a:hover{background:rgba(255,255,255,.05)}
  .field-grid.two{grid-template-columns:1fr}
  .hero{padding-top:34px}
  .hero h1{max-width:none}
  .container{width:min(var(--container),calc(100% - 22px))}
  .form-card,
  .breakdown-card,
  .notes-card,
  .result-hero,
  .prose-card,
  .faq-card,
  .step-card{padding:18px}
  .footer-grid{flex-direction:column}
}



/* Navigation with submenu */
.nav{
  display:flex;
  align-items:center;
  gap:18px;
  font-size:.98rem;
  color:var(--muted);
}
.nav a,
.submenu-toggle{
  color:inherit;
}
.nav-item{
  position:relative;
}
.submenu-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0;
  font:inherit;
  font-weight:500;
  border:0;
  background:transparent;
  cursor:pointer;
}
.submenu-toggle::after{
  content:"";
  width:8px;
  height:8px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
  opacity:.8;
}
.submenu{
  position:absolute;
  top:calc(100% + 12px);
  left:0;
  min-width:290px;
  padding:10px;
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(7,16,29,.96);
  box-shadow:var(--shadow);
  display:none;
}
.nav-item:hover .submenu,
.nav-item:focus-within .submenu,
.nav-item.is-open .submenu{
  display:grid;
  gap:6px;
}
.submenu a{
  display:block;
  padding:12px 14px;
  border-radius:14px;
  color:var(--text);
}
.submenu a small{
  display:block;
  margin-top:2px;
  color:var(--muted);
  font-size:.84rem;
}
.submenu a:hover{
  background:rgba(255,255,255,.05);
}
.nav a:hover,
.submenu-toggle:hover{
  color:var(--text);
}

/* Article pages */
.article-hero{
  padding:44px 0 10px;
}
.article-hero .lead{
  max-width:74ch;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0, 1fr) 320px;
  gap:24px;
  align-items:start;
}
.article-main,
.article-sidebar{
  padding:24px;
}
.article-main h2{
  margin:0 0 12px;
  font-size:clamp(1.5rem, 3vw, 2.2rem);
  line-height:1.12;
}
.article-main h3{
  margin:20px 0 8px;
  font-size:1.12rem;
}
.article-main p + p{
  margin-top:12px;
}
.article-main ul,
.article-main ol,
.prose-card ul,
.prose-card ol{
  margin:12px 0 0 0;
  padding-left:20px;
}
.article-main li + li,
.prose-card li + li{
  margin-top:8px;
}
.article-section + .article-section{
  margin-top:24px;
}
.sidebar-box + .sidebar-box{
  margin-top:16px;
}
.link-list{
  list-style:none;
  padding:0;
  margin:0;
}
.link-list li + li{
  margin-top:8px;
}
.link-list a{
  display:block;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.06);
}
.link-list a:hover{
  border-color:rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
}
.small-note{
  color:var(--muted);
  font-size:.94rem;
}

/* Better footer */
.site-footer{
  border-top:1px solid var(--line);
  padding:18px 0 28px;
  background:rgba(3,8,17,.42);
}
.footer-simple{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 24px;
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.footer-brand strong{
  font-size:1rem;
}
.footer-brand span,
.footer-meta{
  color:var(--muted);
  font-size:.95rem;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:14px 18px;
  color:var(--muted);
}
.footer-links a:hover{
  color:var(--text);
}

@media (max-width: 980px){
  .article-layout{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .nav{
    position:absolute;
    top:calc(100% + 10px);
    right:0;
    left:0;
    display:none;
    flex-direction:column;
    gap:0;
    padding:10px;
    border:1px solid var(--line);
    border-radius:20px;
    background:rgba(7,16,29,.96);
    box-shadow:var(--shadow);
  }
  .nav.is-open{display:flex}
  .nav > a,
  .nav > .nav-item > .submenu-toggle{
    width:100%;
    justify-content:space-between;
    padding:14px 16px;
    border-radius:14px;
    color:var(--text);
  }
  .nav > a:hover,
  .nav > .nav-item > .submenu-toggle:hover{
    background:rgba(255,255,255,.05);
  }
  .nav-item{
    width:100%;
  }
  .submenu{
    position:static;
    min-width:0;
    margin-top:6px;
    padding:6px;
    border-radius:16px;
    background:rgba(255,255,255,.03);
    box-shadow:none;
  }
  .nav-item:hover .submenu{
    display:none;
  }
  .nav-item.is-open .submenu{
    display:grid;
  }
  .submenu a{
    padding:12px 12px;
  }
  .footer-simple{
    flex-direction:column;
    align-items:flex-start;
  }
}