/* TakeHomeSum - brand: navy #16253d, green #1fa67f (from the logo). Outfit for display, Inter for text. */
:root{
  --bg:#f6f7f8;--surface:#fff;--ink:#16253d;--muted:#5d6878;--line:#e3e6ea;--line-strong:#cfd4db;
  --brand:#1fa67f;--brand-text:#0f7d5d;--brand-ink:#fff;--brand-soft:#e7f5f0;--navy:#16253d;--warn:#b3402a;
  --radius:14px;--radius-sm:10px;
  --shadow:0 1px 0 rgba(22,37,61,.04),0 1px 3px rgba(22,37,61,.06);
  --shadow-lg:0 1px 2px rgba(22,37,61,.05),0 12px 32px -12px rgba(22,37,61,.18);
  --display:"Outfit",ui-sans-serif,system-ui,sans-serif;
  --text:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0c131f;--surface:#131c2b;--ink:#e8edf4;--muted:#97a3b4;--line:#223046;--line-strong:#2f3f58;
  --brand:#2bbf93;--brand-text:#4fd3a9;--brand-ink:#06140f;--brand-soft:#132a2a;--navy:#0a111c;--warn:#ff8e74;
  --shadow:0 1px 0 rgba(0,0,0,.2);--shadow-lg:0 12px 32px -12px rgba(0,0,0,.6);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--text);-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}
a{color:var(--brand-text);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}

/* ---- header ---- */
.site-header{background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:66px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.logo-mark{width:34px;height:35px;flex:none}
.wordmark{font:700 1.38rem/1 var(--display);letter-spacing:-.025em;color:var(--ink)}
.wordmark b{font-weight:700;color:var(--brand)}
@media (prefers-color-scheme:dark){.logo-mark rect[fill="#16253d"]{fill:#2a3c5a}}
.nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{position:relative;padding:8px 12px;text-decoration:none;color:var(--muted);font-weight:500;font-size:.92rem;border-radius:8px;transition:color .15s,background-color .15s}
.nav a:hover{color:var(--ink);background:var(--bg)}
.nav a[aria-current]{color:var(--ink)}
.nav a[aria-current]::after{content:"";position:absolute;left:12px;right:12px;bottom:-12px;height:2px;border-radius:2px;background:var(--brand)}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;background:none;border:1px solid var(--line);border-radius:10px;cursor:pointer;position:relative}
.nav-toggle span,.nav-toggle span::before{position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s}
.nav-toggle span{top:16px}
.nav-toggle span::before{content:"";left:0;right:0;top:7px}
.nav-toggle[aria-expanded=true] span{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded=true] span::before{transform:translateY(-7px) rotate(-90deg)}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{display:none;width:100%;flex-direction:column;padding:4px 0 14px;gap:0}
  .nav.open{display:flex}
  .nav a{padding:12px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:1rem}
  .nav a:hover{background:none}
  .nav a[aria-current]{color:var(--brand-text)}
  .nav a[aria-current]::after{display:none}
}

/* ---- page head ---- */
main{padding:28px 20px 72px}
.page-head{margin-bottom:8px}
h1,h2,h3{font-family:var(--display);color:var(--ink);letter-spacing:-.02em}
h1{font-size:clamp(1.85rem,4.4vw,2.7rem);line-height:1.1;font-weight:700;margin:.35em 0 .35em;max-width:22ch;text-wrap:balance}
h1 em{font-style:normal;color:var(--brand)}
h2{font-size:clamp(1.3rem,2.4vw,1.55rem);font-weight:650;margin:2em 0 .6em;line-height:1.25}
h3{font-size:1.1rem;font-weight:600}
.lead{font-size:1.1rem;color:var(--muted);max-width:60ch;margin:0}
.crumbs{font-size:.85rem;color:var(--muted)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.crumbs span{margin:0 4px;opacity:.5}
.hero{padding:40px 0 24px}
.hero h1{font-size:clamp(2.3rem,6.4vw,4rem);line-height:1.02;letter-spacing:-.035em;font-weight:700;max-width:15ch;margin:.25em 0 .4em}
.hero .lead{font-size:clamp(1.05rem,1.8vw,1.2rem)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0;padding:5px 12px 5px 10px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:.82rem;font-weight:500;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* ---- calculator ---- */
.tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:8px;margin:28px 0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:8px}
@media (max-width:780px){.tool{grid-template-columns:1fr}}
.tool-form{display:grid;gap:16px;align-content:start;padding:20px}
@media (max-width:780px){.tool-form{padding:14px}}
.field{display:grid;gap:6px}
.field>span{font-weight:600;font-size:.88rem}
.field small{color:var(--muted);font-size:.8rem}
input[type=number],select{width:100%;font:500 1rem var(--text);font-variant-numeric:tabular-nums;padding:11px 13px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);transition:border-color .15s,box-shadow .15s;appearance:none;-webkit-appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='m1 1.5 5 5 5-5' stroke='%235d6878' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;cursor:pointer}
input[type=number]{-moz-appearance:textfield}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
input[type=number]:hover,select:hover{border-color:var(--muted)}
input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 18%,transparent)}
.prefix,.suffix{display:flex;align-items:stretch;position:relative}
.prefix i,.suffix i{font-style:normal;display:grid;place-items:center;position:absolute;top:0;bottom:0;color:var(--muted);font-weight:500;pointer-events:none}
.prefix i{left:13px}.prefix input{padding-left:30px}
.suffix i{right:13px;white-space:nowrap}.suffix input{padding-right:52px}
.check{display:flex;gap:10px;align-items:center;font-size:.92rem;cursor:pointer}
.check input{width:18px;height:18px;margin:0;accent-color:var(--brand)}
.tool-note{grid-column:1/-1;margin:0;padding:4px 20px 12px;font-size:.82rem;color:var(--muted)}

/* result panel is always navy, like the logo's payslip */
.tool-result{--ink:#fff;--muted:#a9b6c8;--line:rgba(255,255,255,.1);--brand-text:#5ee0b5;--warn:#ffa48f;
  background:var(--navy);color:var(--ink);border-radius:calc(var(--radius) - 4px);padding:28px;align-self:stretch;position:relative;overflow:hidden}
.tool-result::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--brand)}
@media (max-width:780px){.tool-result{padding:22px}}
.headline{font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0}
.big-num{font:700 clamp(2.4rem,6.5vw,3.3rem)/1.05 var(--display);color:#fff;margin:8px 0 6px;letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.big-num small{font-size:.4em;font-weight:500;color:var(--muted);letter-spacing:0;margin-left:4px}
.sub{margin:0 0 18px;color:var(--muted);font-size:.95rem}
.kv{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:.92rem}
.kv td{padding:8px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.kv td:last-child{text-align:right;font-weight:600;color:var(--ink)}
.kv tr.total td{border-bottom:0;font-weight:700;padding-top:12px;color:var(--ink);font-size:1rem}
.kv tr.total td:last-child{color:var(--brand-text)}
.bar{display:flex;gap:2px;height:10px;border-radius:5px;overflow:hidden;margin:4px 0 10px;background:var(--line)}
.bar span{display:block;min-width:0}
.legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.78rem;color:var(--muted);margin-bottom:14px}
.legend i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:1px}
.tool-result .small{color:var(--muted)}
.tool-result p:last-child{margin-bottom:0}
.warn{color:var(--warn);font-size:.9rem}
.good{color:var(--brand-text);font-weight:600}
.yr-table{max-height:260px;overflow:auto;margin-top:14px;scrollbar-width:thin}

/* ---- content ---- */
.prose{max-width:70ch}
.prose:has(.tool-index){max-width:none}
.prose:has(.tool-index)>:not(.tool-index):not(h2){max-width:70ch}
.prose li{margin:.35em 0}
.prose ol,.prose ul{padding-left:1.3em}
.prose li::marker{color:var(--brand);font-weight:600}
table.data{width:100%;border-collapse:separate;border-spacing:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;font-variant-numeric:tabular-nums;margin:14px 0;font-size:.93rem}
table.data th,table.data td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
table.data tr:last-child>*{border-bottom:0}
table.data thead th{background:var(--bg);font-size:.76rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
table.data tbody th{font-weight:500;width:50%;color:var(--muted)}
table.data tbody td{font-weight:500}
table.data tbody tr:hover{background:color-mix(in srgb,var(--brand-soft) 50%,transparent)}
table.data tr.total td{font-weight:700}
@media (max-width:600px){.prose table.data{display:block;overflow-x:auto}}

/* home: calculator index */
ol.tool-index{list-style:none;margin:8px 0 0;padding:0;border-top:1px solid var(--line-strong)}
.tool-index a{display:grid;grid-template-columns:3rem minmax(0,1fr) minmax(0,1.2fr) 2rem;align-items:baseline;gap:16px;padding:22px 4px;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none;transition:background-color .2s,padding .2s}
.tool-index a:hover{background:var(--surface);padding-left:14px;padding-right:14px}
.ti-n{font:600 .8rem var(--display);color:var(--muted);font-variant-numeric:tabular-nums}
.tool-index strong{font:600 clamp(1.1rem,2.2vw,1.3rem)/1.25 var(--display);letter-spacing:-.015em}
.ti-b{color:var(--muted);font-size:.95rem}
.ti-a{justify-self:end;color:var(--muted);transition:transform .2s,color .2s}
.tool-index a:hover .ti-a{transform:translateX(4px);color:var(--brand)}
@media (max-width:700px){
  .tool-index a{grid-template-columns:2.2rem minmax(0,1fr) 1.2rem;gap:4px 10px;padding:18px 2px}
  .ti-b{grid-column:2;grid-row:2}
  .ti-a{grid-column:3;grid-row:1}
}

/* related calculators */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin:14px 0}
.card{position:relative;display:grid;gap:4px;padding:18px 44px 18px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.card::after{content:"→";position:absolute;right:18px;top:17px;color:var(--muted);transition:transform .2s,color .2s}
.card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.card:hover::after{transform:translateX(3px);color:var(--brand)}
.card strong{font:600 1.02rem var(--display);letter-spacing:-.01em}
.card span{color:var(--muted);font-size:.9rem;line-height:1.5}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{padding:8px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--ink);text-decoration:none;font-weight:500;font-size:.92rem;font-variant-numeric:tabular-nums;transition:border-color .15s,color .15s}
.chips a:hover{border-color:var(--brand);color:var(--brand-text)}
.chips a:last-child{border-color:transparent;background:none;color:var(--brand-text);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--surface);padding:12px 20px;border-radius:var(--radius-sm);text-decoration:none;font-weight:600;transition:background-color .15s,transform .15s}
.btn:hover{background:var(--brand);color:#fff}
.btn:active{transform:translateY(1px)}
.pager{display:flex;justify-content:space-between;gap:12px;margin:28px 0;padding-top:20px;border-top:1px solid var(--line)}
.pager a{font-weight:600;text-decoration:none}
.pager a:hover{text-decoration:underline}

.faqs{max-width:70ch}
.faqs details{border-bottom:1px solid var(--line)}
.faqs details:first-of-type{border-top:1px solid var(--line)}
.faqs summary{display:flex;justify-content:space-between;gap:16px;padding:16px 0;font-weight:600;cursor:pointer;list-style:none}
.faqs summary::-webkit-details-marker{display:none}
.faqs summary::after{content:"+";font:400 1.4rem/1 var(--display);color:var(--muted);transition:transform .2s}
.faqs details[open] summary::after{transform:rotate(45deg);color:var(--brand)}
.faqs details div{padding:0 0 16px;color:var(--muted)}

.ad{margin:24px 0;min-height:100px;text-align:center}
.small{font-size:.85rem;color:var(--muted)}

/* ---- footer ---- */
.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:40px 0 32px;font-size:.88rem;color:var(--muted)}
.site-footer .logo{margin-bottom:12px}
.site-footer .logo-mark{width:28px;height:29px}
.site-footer .wordmark{font-size:1.15rem}
.site-footer p{max-width:72ch}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 22px;margin:18px 0;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.foot-nav a{color:var(--ink);text-decoration:none;font-weight:500}
.foot-nav a:hover{color:var(--brand-text)}