/* Calculator Sathi — shared styles */
:root{
  --ink:#0F2A2E; --ink-2:#3C5456; --teal:#0E6B63; --teal-2:#0A524C; --teal-soft:#E2F0EC;
  --marigold:#F2A007; --marigold-soft:#FDF1D6; --paper:#F6F8F5; --white:#FFFFFF;
  --line:#DDE3DD; --lcd:#D5E0B5; --lcd-ink:#24331A; --red:#B3261E;
  --radius-s:8px; --radius-m:14px; --radius-l:22px;
  --maxw:1160px;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ink:#E6EFEC; --ink-2:#A9BDB9; --teal:#39B3A5; --teal-2:#5CC7BA; --teal-soft:#15312E;
    --marigold:#F5B638; --marigold-soft:#3A2D10; --paper:#0F1A1B; --white:#162325;
    --line:#29393A; --lcd:#2E3B22; --lcd-ink:#DCEBB5;
  }
}
:root[data-theme="dark"]{
  --ink:#E6EFEC; --ink-2:#A9BDB9; --teal:#39B3A5; --teal-2:#5CC7BA; --teal-soft:#15312E;
  --marigold:#F5B638; --marigold-soft:#3A2D10; --paper:#0F1A1B; --white:#162325;
  --line:#29393A; --lcd:#2E3B22; --lcd-ink:#DCEBB5;
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 80px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Mukta",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.65}
h1,h2,h3,h4{font-family:"Bricolage Grotesque","Mukta",system-ui,sans-serif;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
a{color:var(--teal)}
a:hover{color:var(--teal-2)}
img,svg{max-width:100%}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--marigold);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.prose{max-width:74ch}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:8px 14px;z-index:100}
.skip:focus{left:10px;top:10px}

/* Header */
.site-head{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.25rem;white-space:nowrap}
.logo svg{width:36px;height:36px;flex:0 0 auto}
.nav{display:flex;align-items:center;gap:4px}
.nav a,.nav .dd-btn{display:block;padding:8px 12px;border-radius:var(--radius-s);text-decoration:none;color:var(--ink);font-weight:600;background:none;border:0;cursor:pointer}
.nav a:hover,.nav .dd-btn:hover,.nav a[aria-current="page"]{background:var(--teal-soft);color:var(--teal-2)}
.dd{position:relative}
.dd-btn::after{content:"";display:inline-block;margin-left:6px;border:5px solid transparent;border-top-color:currentColor;transform:translateY(3px)}
.mega{position:absolute;right:0;top:calc(100% + 8px);width:min(760px,92vw);background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:0 18px 40px rgba(15,42,46,.14);padding:18px;display:none;grid-template-columns:repeat(4,1fr);gap:14px}
.dd.open .mega{display:grid}
.mega h4{font-size:.95rem;color:var(--ink-2);margin-bottom:6px}
.mega ul{list-style:none;margin:0;padding:0}
.mega li a{padding:4px 6px;font-weight:500;font-size:.95rem}
.soon{color:var(--ink-2);font-size:.92rem;padding:4px 6px;display:block;opacity:.75}
.menu-btn{display:none;background:none;border:1.5px solid var(--line);border-radius:var(--radius-s);padding:7px 10px;cursor:pointer}
.menu-btn span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0}
@media (max-width:900px){
  .menu-btn{display:block}
  .nav{position:fixed;inset:calc(66px + env(safe-area-inset-top,0px)) 0 auto 0;background:var(--white);flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);display:none;max-height:calc(100vh - 66px);overflow-y:auto}
  .nav.open{display:flex}
  .mega{position:static;width:100%;box-shadow:none;border:0;padding:6px 0 0 10px;grid-template-columns:1fr 1fr}
}
@media (max-width:520px){.mega{grid-template-columns:1fr}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;background:var(--teal);color:#fff;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--teal-2);color:#fff}
.btn.alt{background:var(--marigold);color:#2A1D00}
.btn.alt:hover{background:#DA9006;color:#2A1D00}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}

/* Home hero + slider */
.hero{padding:40px 0 20px}
.hero .lede{font-size:1.15rem;color:var(--ink-2);max-width:60ch}
.slider{position:relative;margin-top:26px;border-radius:var(--radius-l);overflow:hidden;background:var(--ink);color:#EAF3F0}
.slides{display:flex;transition:transform .5s ease}
.slide{flex:0 0 100%;display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;padding:40px 48px 64px}
.slide h2{color:#fff;font-size:clamp(1.6rem,3.4vw,2.4rem)}
.slide p{color:#BFD3CE;max-width:46ch}
.lcd{background:var(--lcd);color:var(--lcd-ink);border-radius:var(--radius-m);padding:18px 20px;font-family:"Chivo Mono",ui-monospace,monospace;box-shadow:inset 0 2px 0 rgba(0,0,0,.12),0 0 0 6px #22474A}
.lcd .l-label{font-size:.85rem;opacity:.75}
.lcd .l-big{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:700;line-height:1.1;margin:4px 0}
.lcd .l-sub{font-size:.95rem}
.slider-ctl{position:absolute;left:48px;bottom:20px;display:flex;gap:8px;align-items:center}
.dot{width:12px;height:12px;border-radius:50%;border:2px solid #9FC2BC;background:transparent;cursor:pointer;padding:0}
.dot[aria-current="true"]{background:var(--marigold);border-color:var(--marigold)}
.pause{margin-left:8px;background:transparent;border:1.5px solid #4E7773;color:#CFE2DE;border-radius:999px;padding:2px 10px;font-size:.8rem;cursor:pointer}
@media (max-width:760px){.slide{grid-template-columns:1fr;padding:28px 22px 64px}.slider-ctl{left:22px}}

/* Tool directory */
.section{padding:48px 0}
.section.tint{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cat-block{margin-top:30px}
.cat-block h3{display:flex;align-items:center;gap:10px;font-size:1.35rem}
.cat-count{font-family:"Mukta",sans-serif;font-size:.85rem;font-weight:600;background:var(--teal-soft);color:var(--teal-2);padding:1px 10px;border-radius:999px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:12px}
.card{display:block;position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);padding:18px 18px 16px;text-decoration:none;color:var(--ink)}
a.card:hover{border-color:var(--teal)}
a.card:hover .card-title{color:var(--teal)}
.card-title{font-family:"Bricolage Grotesque",sans-serif;font-weight:700;font-size:1.12rem;margin-bottom:4px;display:flex;align-items:center;gap:10px}
.key{width:34px;height:34px;border-radius:9px;background:var(--marigold-soft);color:#7A4F00;display:inline-flex;align-items:center;justify-content:center;font-family:"Chivo Mono",monospace;font-weight:700;font-size:.9rem;flex:0 0 auto}
.card p{margin:6px 0 0;color:var(--ink-2);font-size:.97rem;line-height:1.5}
.card .tag-soon{position:absolute;top:14px;right:14px;font-size:.75rem;font-weight:700;background:var(--paper);border:1px solid var(--line);padding:1px 8px;border-radius:999px;color:var(--ink-2)}
div.card{opacity:.82}

/* Content blocks */
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:820px){.two{grid-template-columns:1fr}}
.note{background:var(--marigold-soft);border-left:5px solid var(--marigold);border-radius:0 var(--radius-s) var(--radius-s) 0;padding:14px 18px}
table{border-collapse:collapse;width:100%}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white)}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
th{background:var(--teal-soft);font-weight:700}
tr:last-child td{border-bottom:0}

/* FAQ */
.faq details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:12px;font-size:1.5rem;color:var(--teal)}
.faq details[open] summary::after{content:"−"}
.faq details>div{padding:0 18px 16px;color:var(--ink-2)}

/* Tool page */
.crumbs{font-size:.92rem;color:var(--ink-2);padding:18px 0 0}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"/";margin-right:6px;opacity:.6}
.tool-head{padding:14px 0 6px}
.answer{background:var(--white);border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:0 var(--radius-m) var(--radius-m) 0;padding:14px 18px;max-width:78ch}
.tool-box{display:grid;grid-template-columns:1fr 1.05fr;gap:22px;margin:26px 0 10px;align-items:start}
@media (max-width:860px){.tool-box{grid-template-columns:1fr}}
.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-l);padding:22px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;margin-bottom:6px}
.field .hint{font-size:.9rem;color:var(--ink-2);margin-top:4px}
.field input,.field select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--radius-s);background:var(--paper);font-size:1.05rem;min-height:48px}
.field input:focus,.field select:focus{border-color:var(--teal);outline:none;box-shadow:0 0 0 3px var(--teal-soft)}
.row-btns{display:flex;gap:10px;flex-wrap:wrap}
.err{color:var(--red);font-weight:600;margin-top:10px;min-height:1.4em}
.result .lcd{box-shadow:inset 0 2px 0 rgba(0,0,0,.12)}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-s);padding:10px 12px}
.stat b{display:block;font-family:"Chivo Mono",monospace;font-size:1.15rem}
.stat span{font-size:.88rem;color:var(--ink-2)}
.empty{color:var(--ink-2)}
.steps{padding-left:22px}
.steps li{margin-bottom:8px}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}

/* Footer */
.site-foot{background:var(--ink);color:#C5D6D2;margin-top:40px;padding:48px 0 calc(24px + env(safe-area-inset-bottom,0px))}
:root[data-theme="dark"] .site-foot{background:#0A1314}
.foot-grid{display:grid;grid-template-columns:1.3fr repeat(5,1fr);gap:22px}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
.site-foot h4{color:#fff;font-size:1rem;margin-bottom:10px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:6px;font-size:.95rem}
.site-foot a{color:#C5D6D2;text-decoration:none}
.site-foot a:hover{color:var(--marigold)}
.site-foot .muted{opacity:.6}
.foot-logo{color:#fff}
.foot-bottom{border-top:1px solid #29484B;margin-top:30px;padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.9rem}

.ad-slot{margin:26px 0;min-height:0}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* Mode switch */
.seg{display:inline-flex;background:var(--paper);border:1.5px solid var(--line);border-radius:999px;padding:3px;margin-bottom:16px;flex-wrap:wrap}
.seg button{border:0;background:transparent;padding:7px 14px;border-radius:999px;font-weight:600;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--teal);color:#fff}
.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:10px}
.check{display:flex;gap:10px;align-items:center;font-weight:600;margin-bottom:14px}
.check input{width:20px;height:20px;accent-color:var(--teal)}
.linkbtn{background:none;border:0;color:var(--teal);font-weight:700;cursor:pointer;padding:4px 0;margin-bottom:12px}

/* Scientific calculator */
.sci{max-width:520px}
.sci-screen{background:var(--lcd);color:var(--lcd-ink);border-radius:var(--radius-m);padding:12px 14px;margin-bottom:12px;box-shadow:inset 0 2px 0 rgba(0,0,0,.12)}
.sci-screen input{width:100%;background:transparent;border:0;font-family:"Chivo Mono",monospace;font-size:1.1rem;color:inherit;text-align:right}
.sci-screen input:focus{outline:none}
#sciOut{font-family:"Chivo Mono",monospace;font-size:2rem;font-weight:700;text-align:right;overflow-x:auto;white-space:nowrap}
.sci-keys{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.sci-keys button{min-height:48px;border-radius:10px;border:1px solid var(--line);background:var(--paper);font-weight:700;cursor:pointer;font-size:1rem}
.sci-keys button.op{background:var(--teal-soft);color:var(--teal-2)}
.sci-keys button.eq{background:var(--marigold);color:#2A1D00;border-color:transparent}
.sci-keys button:active{transform:translateY(1px)}
#hist{font-family:"Chivo Mono",monospace;font-size:.9rem;color:var(--ink-2);padding-left:18px}

/* Calendar */
.cal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.cal-m{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);padding:14px}
.cal-m h3{font-size:1.05rem}
table.cal{width:100%;table-layout:fixed}
table.cal th,table.cal td{text-align:center;padding:6px 0;border:0;font-size:.95rem;white-space:normal}
table.cal th{background:none;color:var(--ink-2);font-size:.8rem}
table.cal td.sun{color:var(--red)}
table.cal td.hol{background:var(--marigold-soft);font-weight:700;border-radius:6px}
table.cal td.today{outline:2px solid var(--teal);border-radius:6px}

/* Kundli chart */
.kchart{width:100%;height:auto;background:var(--marigold-soft);border-radius:var(--radius-m)}
.kchart rect,.kchart path{stroke:var(--ink);stroke-width:1.5}
.kchart .cs-n{font-size:11px;fill:var(--ink-2);text-anchor:middle;font-family:"Chivo Mono",monospace}
.kchart .cs-p{font-size:13px;font-weight:700;fill:var(--teal-2);text-anchor:middle;dominant-baseline:middle;font-family:"Mukta",sans-serif}
.kchart .cs-l{font-size:9px;fill:var(--ink-2);text-anchor:middle}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}