/* ============================================================
   IndianCalculator — Design tokens
   Palette: ink navy + passbook ivory + rupee green + brass gold
   Type: Lora (display) / Inter (body) / IBM Plex Mono (figures)
   Signature: perforated "passbook" result stubs + dotted ledger rows
   ============================================================ */

:root{
  --navy:#0B2542;
  --navy-2:#123a63;
  --ivory:#FBF8F1;
  --paper:#F3EEE1;
  --gold:#B9812C;
  --gold-2:#DDA94A;
  --green:#0E7A53;
  --green-2:#0a5d3f;
  --rose:#A83A3A;
  --ink:#1B1F27;
  --ink-soft:#4B5566;
  --line:#E3DAC4;
  --radius:14px;
  --shadow:0 10px 30px -14px rgba(11,37,66,.28);
  --serif:"Lora",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--ivory);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--serif);margin:0 0 .5em;line-height:1.2;font-weight:600}
p{margin:0 0 1em}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}

:focus-visible{outline:3px solid var(--gold-2);outline-offset:2px}

/* ---------- Topbar ---------- */
.topbar{background:var(--navy);color:#EDEFF3;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:6px 20px;gap:12px;flex-wrap:wrap}
.topbar span{opacity:.85}
.topbar .topbar-links a{margin-left:16px;text-decoration:none;opacity:.9}
.topbar .topbar-links a:hover{opacity:1;text-decoration:underline}

/* ---------- Header / Nav ---------- */
header.site{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 14px rgba(0,0,0,.18)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:9px;
  background:linear-gradient(155deg,var(--gold-2),var(--gold));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-weight:700;color:var(--navy);font-size:19px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
}
.brand-name{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.2px}
.brand-name small{display:block;font-family:var(--sans);font-weight:400;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;opacity:.7}

nav.main{display:flex;align-items:center;gap:4px}
nav.main a{
  color:#DDE3ED;text-decoration:none;font-size:14.5px;font-weight:500;
  padding:10px 14px;border-radius:8px;transition:background .15s,color .15s;
}
nav.main a:hover,nav.main a.active{background:rgba(255,255,255,.1);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:8px;padding:8px 10px;font-size:18px;cursor:pointer}

@media (max-width:860px){
  nav.main{
    position:absolute;top:100%;left:0;right:0;background:var(--navy-2);
    flex-direction:column;align-items:stretch;padding:8px;gap:2px;
    display:none;box-shadow:0 12px 20px rgba(0,0,0,.25);
  }
  nav.main.open{display:flex}
  nav.main a{padding:12px 14px}
  .nav-toggle{display:block}
}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(221,169,74,.22), transparent 60%),
    linear-gradient(180deg,var(--navy) 0%, var(--navy-2) 100%);
  color:#fff;padding:64px 0 78px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:34px;
  background:
    radial-gradient(circle at 10px 0, transparent 9px, var(--ivory) 10px) 0 0/28px 20px repeat-x;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--gold-2);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"₹";display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;border-radius:50%;background:rgba(221,169,74,.18);font-size:12px}
.hero h1{font-size:clamp(30px,4.6vw,48px);max-width:16ch;margin-bottom:.35em}
.hero h1 em{font-style:normal;color:var(--gold-2)}
.hero p.lead{font-size:17px;color:#C9D3E2;max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;
  font-weight:600;font-size:14.5px;text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease;
}
.btn:active{transform:translateY(1px)}
.btn-gold{background:linear-gradient(155deg,var(--gold-2),var(--gold));color:var(--navy);box-shadow:0 8px 20px -8px rgba(185,129,44,.6)}
.btn-gold:hover{box-shadow:0 10px 24px -6px rgba(185,129,44,.7)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-outline{background:transparent;border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-block{width:100%;justify-content:center}

/* ---------- Sections ---------- */
section{padding:56px 0}
.section-head{max-width:640px;margin:0 auto 34px;text-align:center}
.section-head .kicker{color:var(--gold);font-weight:700;font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3vw,32px)}
.section-head p{color:var(--ink-soft)}
.section-alt{background:var(--paper)}

/* ---------- Calculator cards grid (home) ---------- */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:8px}
.tool-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow);transition:transform .15s ease, box-shadow .15s ease;
}
.tool-card:hover{transform:translateY(-4px);box-shadow:0 18px 34px -16px rgba(11,37,66,.35)}
.tool-icon{
  width:46px;height:46px;border-radius:10px;background:linear-gradient(155deg,#eef4f0,#e1efe6);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--green)
}
.tool-card h3{font-size:18px;margin-bottom:2px}
.tool-card p{color:var(--ink-soft);font-size:14px;margin-bottom:4px;flex:1}
.tool-card .go{font-family:var(--mono);font-size:13px;color:var(--green);font-weight:600}
.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  background:rgba(185,129,44,.12);color:var(--gold);padding:3px 8px;border-radius:6px;align-self:flex-start}

/* ---------- Why / trust strip ---------- */
.trust-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:22px;text-align:center}
.trust-strip div h4{font-family:var(--mono);font-size:26px;color:var(--navy);margin-bottom:2px}
.trust-strip div p{color:var(--ink-soft);font-size:13.5px;margin:0}

/* ---------- Calculator page layout ---------- */
.calc-hero{background:var(--navy);color:#fff;padding:38px 0}
.calc-hero .container{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.calc-hero .tool-icon{background:rgba(255,255,255,.1);color:var(--gold-2)}
.calc-hero h1{font-size:26px;margin-bottom:2px}
.calc-hero p{color:#C9D3E2;margin:0;font-size:14.5px}
.breadcrumb{font-size:13px;color:var(--ink-soft);margin-bottom:14px}
.breadcrumb a{color:var(--green);text-decoration:none}

.calc-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:start;margin-top:34px}
@media (max-width:900px){.calc-wrap{grid-template-columns:1fr}}

.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.panel h2{font-size:18px;margin-bottom:18px}
.field{margin-bottom:18px}
.field label{display:flex;justify-content:space-between;align-items:baseline;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field label .hint{font-weight:400;color:var(--ink-soft);font-size:12px}
.field input[type=number],.field input[type=text],.field select{
  width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:9px;font-size:15px;
  font-family:var(--mono);background:var(--ivory);color:var(--ink);
}
.field input:focus,.field select:focus{border-color:var(--green);background:#fff}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.radio-row{display:flex;gap:8px;flex-wrap:wrap}
.radio-row label{
  display:flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;color:var(--ink);
  border:1.5px solid var(--line);padding:8px 12px;border-radius:9px;cursor:pointer;background:var(--ivory);
}
.radio-row input{accent-color:var(--green)}
.radio-row label:has(input:checked){border-color:var(--green);background:#eaf5ef;color:var(--green-2);font-weight:700}

/* Passbook / result stub — signature element */
.stub{
  background:var(--navy);color:#fff;border-radius:var(--radius);padding:0;position:relative;overflow:hidden;
  box-shadow:var(--shadow);
}
.stub-top{padding:22px 26px 18px;border-bottom:1px dashed rgba(255,255,255,.25)}
.stub-top .kicker{font-size:11.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--gold-2);font-weight:700}
.stub-amount{font-family:var(--mono);font-size:clamp(30px,4vw,42px);font-weight:700;margin:6px 0 0}
.stub-amount span{font-size:.5em;color:#C9D3E2;font-weight:500}
.stub-rows{padding:18px 26px 6px}
.stub-row{display:flex;justify-content:space-between;gap:10px;padding:9px 0;font-size:13.5px;
  border-bottom:1px dotted rgba(255,255,255,.18)}
.stub-row:last-child{border-bottom:none}
.stub-row .k{color:#B8C3D6}
.stub-row .v{font-family:var(--mono);font-weight:600}
.stub-foot{padding:16px 26px 22px;font-size:12px;color:#93A3BC}
.stub::before{ /* perforation dots along the fold */
  content:"";position:absolute;left:0;right:0;top:0;height:0;
}
.perf{
  height:16px;background:var(--ivory);
  background-image:radial-gradient(circle at 10px 8px, var(--navy) 6px, transparent 6.5px);
  background-size:24px 16px;background-repeat:repeat-x;background-position:left center;
  margin-top:-1px;
}

.note-box{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:13px;color:var(--ink-soft);margin-top:16px}
.note-box strong{color:var(--ink)}

/* ---------- Table ---------- */
table.data{width:100%;border-collapse:collapse;font-size:14px;margin:18px 0}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
table.data th{background:var(--paper);font-family:var(--sans);font-size:12.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft)}
table.data td.num{font-family:var(--mono)}

/* ---------- Explainer / content pages ---------- */
.content h2{font-size:22px;margin-top:34px}
.content h3{font-size:17px;margin-top:22px}
.content ul,.content ol{padding-left:22px}
.content li{margin-bottom:6px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:18px;color:var(--gold)}
.faq details[open] summary::after{content:"–"}
.faq p{margin-top:10px;color:var(--ink-soft)}

.callout{border-left:4px solid var(--gold);background:var(--paper);padding:14px 18px;border-radius:0 10px 10px 0;margin:20px 0;font-size:14.5px}
.callout.rose{border-color:var(--rose)}
.callout.green{border-color:var(--green)}

/* ---------- Card list (about/contact) ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:24px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.info-card h4{font-size:15px;margin-bottom:6px;color:var(--navy)}
.info-card p{font-size:13.5px;color:var(--ink-soft);margin:0}

/* ---------- Forms ---------- */
form.contact-form .field{margin-bottom:16px}
textarea{width:100%;padding:11px 12px;border:1.5px solid var(--line);border-radius:9px;font-family:var(--sans);font-size:14.5px;min-height:120px;background:var(--ivory)}
textarea:focus{border-color:var(--green);background:#fff}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(155deg,var(--navy),var(--navy-2));color:#fff;border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h3{margin-bottom:4px;font-size:22px}
.cta-band p{color:#C9D3E2;margin:0}

/* ---------- Footer ---------- */
footer.site{background:var(--navy);color:#B8C3D6;padding:48px 0 20px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h4{color:#fff;font-size:13.5px;text-transform:uppercase;letter-spacing:.8px;margin-bottom:14px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:9px;font-size:13.5px}
.footer-grid a{color:#B8C3D6;text-decoration:none}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-brand p{font-size:13.5px;max-width:32ch;color:#93A3BC}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7C8BA6}
.footer-bottom a{color:#93A3BC;text-decoration:underline}

/* ---------- Disclaimer banner (site-wide, dismissible) ---------- */
.disclaimer-bar{background:var(--gold-2);color:var(--navy);font-size:13px;text-align:center;padding:9px 16px;position:relative}
.disclaimer-bar strong{font-weight:700}
.disclaimer-bar .close{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:none;
  font-size:16px;cursor:pointer;color:var(--navy);font-weight:700}

/* ---------- Utility ---------- */
.center{text-align:center}
.mt-0{margin-top:0}
.small{font-size:12.5px;color:var(--ink-soft)}
@media print{header,footer,.disclaimer-bar{display:none}}