/* T20 Exchange — t20xch.com.in
   Shared shell only: tokens, header, footer, repeated blocks.
   Look of this site: light "scorecard" paper canvas, dark ink chrome, serif headlines,
   square 6px corners, tabular numbers. Page-specific rules live in each page's <style>. */

:root{
  /* ink chrome */
  --ink:#0c1c17;
  --ink-2:#122a22;
  --ink-3:#1a3a2f;
  --ink-line:#24493c;
  /* paper canvas */
  --paper:#f6f5ef;
  --paper-2:#ffffff;
  --paper-3:#edeae0;
  --line:#dcd7c8;
  --line-2:#c6c0ad;
  /* brand */
  --grn:#0f7a4f;
  --grn-lit:#16a163;
  --grn-deep:#0a5638;
  --amber:#c07a00;
  --amber-lit:#f0a51f;
  --amber-soft:#fdf3dc;
  --blue:#1d5fbf;
  --red:#bf3b32;
  /* text */
  --txt:#16211d;
  --txt-dim:#4e5c56;
  --txt-faint:#83908a;
  --radius:6px;
  --radius-sm:3px;
  --wrap:1090px;
  --serif:Georgia,"Iowan Old Style","Times New Roman",Times,serif;
  --sans:"Segoe UI",Roboto,ui-sans-serif,system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--txt);font-family:var(--sans);
  font-size:16.5px;line-height:1.72;overflow-x:hidden}
img{max-width:100%;height:auto}
a{color:var(--grn);text-decoration:none}
a:hover{text-decoration:underline}
p{margin:0 0 15px}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin:0 0 7px}
strong,b{color:#0d1714}

h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.24;color:#0d1a16;
  margin:0 0 12px;letter-spacing:-.01em}
h1{font-size:clamp(1.95rem,4.6vw,2.85rem)}
h2{font-size:clamp(1.4rem,3vw,1.86rem);margin-top:38px;padding-bottom:9px;
  border-bottom:3px double var(--line-2)}
h3{font-size:clamp(1.08rem,2.2vw,1.25rem);margin-top:26px}
h4{font-size:1.02rem;margin-top:20px;font-family:var(--sans);font-weight:700}

.skip-link{position:absolute;left:-9999px;top:0;z-index:99;background:var(--amber-lit);
  color:#1a1405;padding:10px 16px;font-weight:700}
.skip-link:focus{left:0}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 18px}

/* ---------------- header ---------------- */
.site-head{background:var(--ink);border-bottom:3px solid var(--amber);position:sticky;top:0;z-index:40}
.head-row{max-width:var(--wrap);margin:0 auto;padding:9px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;row-gap:8px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{width:118px;height:65px;object-fit:contain;display:block}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:3px;flex-wrap:wrap;row-gap:6px}
.nav-links a{color:#cfe3d8;font-size:.86rem;font-weight:600;padding:8px 11px;
  border-radius:var(--radius-sm);white-space:nowrap}
.nav-links a:hover{color:#fff;background:var(--ink-3);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--amber-lit);box-shadow:inset 0 -2px 0 var(--amber-lit)}
.head-cta{background:var(--amber-lit);color:#1a1405 !important;font-weight:800 !important;
  padding:9px 16px !important;border-radius:var(--radius) !important;margin-left:8px;
  box-shadow:none !important}
.head-cta:hover{background:#ffbe3d;text-decoration:none !important}
.burger{display:none;margin-left:auto;background:var(--ink-3);color:#dff0e6;border:1px solid var(--ink-line);
  border-radius:var(--radius-sm);font-size:1.24rem;line-height:1;padding:8px 13px;cursor:pointer}

@media (max-width:940px){
  .burger{display:block}
  .nav-links{position:absolute;top:100%;left:0;right:0;background:var(--ink-2);
    border-bottom:3px solid var(--amber);flex-direction:column;align-items:stretch;gap:0;
    padding:6px 14px 14px;display:none;margin-left:0}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 6px;border-bottom:1px solid var(--ink-line);font-size:.95rem}
  .head-cta{margin:12px 0 2px;text-align:center;border-bottom:0 !important}
}

/* score strip under the header — this site's signature band */
.score-strip{background:var(--ink-2);border-bottom:1px solid var(--ink-line);color:#bcd6c8;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.4px}
.score-strip .wrap{display:flex;flex-wrap:wrap;gap:0 26px;padding-top:7px;padding-bottom:7px}
.score-strip span{white-space:nowrap}
.score-strip b{color:var(--amber-lit);font-weight:700}
.score-strip i{color:#6f8f7f;font-style:normal}

/* ---------------- breadcrumb ---------------- */
.crumb{font-size:.79rem;color:var(--txt-faint);padding:14px 0 0}
.crumb a{color:var(--txt-dim)}
.crumb span{margin:0 6px;color:var(--line-2)}

/* ---------------- shared blocks ---------------- */
main{display:block;padding-bottom:10px}
.lede{font-size:1.09rem;color:var(--txt-dim);line-height:1.7}
.sec{padding:2px 0}

.btn{display:inline-block;padding:13px 25px;border-radius:var(--radius);font-weight:800;
  font-size:.96rem;text-align:center;border:2px solid transparent}
.btn:hover{text-decoration:none}
.btn-gold{background:var(--amber-lit);color:#1a1405;box-shadow:0 3px 0 #b57c07}
.btn-gold:hover{background:#ffbe3d}
.btn-ink{background:var(--ink);color:#eaf5ef}
.btn-ink:hover{background:var(--ink-3)}
.btn-ghost{border-color:var(--line-2);color:var(--txt-dim);background:var(--paper-2)}
.btn-ghost:hover{border-color:var(--grn);color:var(--grn)}

.card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:19px 21px}
.card h3{margin-top:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}
@media (max-width:820px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* answer block for featured-snippet style passages */
.answer{background:var(--amber-soft);border-left:5px solid var(--amber-lit);
  border-radius:0 var(--radius) var(--radius) 0;padding:15px 19px;margin:18px 0;
  font-size:1.01rem;color:#3a3222}
.answer p:last-child{margin-bottom:0}

.note{border:1px dashed var(--line-2);background:var(--paper-3);border-radius:var(--radius);
  padding:14px 18px;margin:20px 0;font-size:.94rem;color:var(--txt-dim)}
.warn{border:1px solid #e6c4c0;background:#fdf1f0;border-radius:var(--radius);
  padding:14px 18px;margin:20px 0;font-size:.94rem;color:#6b332e}

/* tables — scoreboard styling */
.tbl{width:100%;border-collapse:collapse;margin:20px 0;font-size:.93rem;
  background:var(--paper-2);border:1px solid var(--line)}
.tbl caption{caption-side:top;text-align:left;font-size:.78rem;letter-spacing:1px;
  text-transform:uppercase;color:var(--txt-faint);padding:0 0 8px;font-weight:700}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:10px 13px;text-align:left;
  vertical-align:top}
.tbl thead th{background:var(--ink-2);color:#dcefe4;font-family:var(--sans);font-size:.78rem;
  letter-spacing:.7px;text-transform:uppercase;border-bottom:0}
.tbl tbody tr:nth-child(even){background:#faf9f4}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl td b,.tbl td strong{font-family:var(--mono);font-size:.9rem}
.tbl-scroll{overflow-x:auto;margin:20px 0}
.tbl-scroll .tbl{margin:0;min-width:520px}

/* numbered walkthrough */
.steps{list-style:none;counter-reset:s;padding:0;margin:22px 0}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 52px;margin:0;
  border-left:1px solid var(--line);margin-left:15px}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:-16px;top:-2px;
  width:32px;height:32px;border-radius:var(--radius-sm);background:var(--ink);color:var(--amber-lit);
  font-family:var(--mono);font-size:.82rem;font-weight:700;display:flex;align-items:center;
  justify-content:center}
.steps li b{display:block;font-family:var(--serif);font-size:1.06rem;margin-bottom:2px}

/* key-value rows */
.kv{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:20px 0;
  background:var(--paper-2)}
.kv div{display:grid;grid-template-columns:210px 1fr;border-bottom:1px solid var(--line);
  font-size:.93rem}
.kv div:last-child{border-bottom:0}
.kv dt,.kv span:first-child{padding:11px 14px;background:#f3f1e8;font-weight:700;
  color:#2a3a34;border-right:1px solid var(--line)}
.kv dd,.kv span:last-child{padding:11px 14px;margin:0;color:var(--txt-dim)}
@media (max-width:620px){.kv div{grid-template-columns:1fr}
  .kv dt,.kv span:first-child{border-right:0;border-bottom:1px solid var(--line)}}

/* FAQ */
.faq{margin:22px 0}
.faq details{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:9px;padding:0 18px}
.faq details[open]{border-color:var(--grn);background:#fbfdfb}
.faq summary{cursor:pointer;padding:14px 0;font-weight:700;font-size:1rem;color:#132018;
  list-style:none;position:relative;padding-right:30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:2px;top:12px;font-family:var(--mono);
  font-size:1.28rem;color:var(--grn);line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{padding-bottom:15px;margin:0;color:var(--txt-dim);font-size:.96rem}

/* content figure */
.shot{margin:26px auto;max-width:820px;width:100%}
.shot img{display:block;width:100%;height:auto;border-radius:var(--radius);
  border:1px solid var(--line-2)}
.shot figcaption{margin-top:9px;font-size:.85rem;color:var(--txt-faint);text-align:center}

/* CTA band */
.cta-band{background:var(--ink);border-radius:var(--radius);padding:26px 24px;margin:32px 0;
  text-align:center;border-top:3px solid var(--amber)}
.cta-band h2{color:#f4fbf7;border-bottom:0;margin:0 0 8px;padding:0}
.cta-band p{color:#a9c6b8;max-width:620px;margin:0 auto 18px;font-size:.97rem}

/* SEO box + tag cloud */
.seo-box{background:var(--paper-3);border:1px solid var(--line);border-radius:var(--radius);
  padding:19px 22px;margin:36px 0 18px;max-height:330px;overflow-y:auto;
  font-size:.92rem;color:var(--txt-dim)}
.seo-box h2{font-size:1.15rem;margin:0 0 10px;border-bottom:1px solid var(--line-2);padding-bottom:7px}
.seo-box h3{font-size:.99rem;margin:15px 0 6px}
.seo-box::-webkit-scrollbar{width:8px}
.seo-box::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:8px}

.also-search{margin:20px 0 34px}
.also-search h2{font-size:1.08rem;margin-bottom:11px;border-bottom:0;padding:0}
.also-search ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.also-search li{margin:0;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:6px 13px;font-size:.82rem;color:var(--txt-dim)}

/* ---------------- footer ---------------- */
.site-foot{background:var(--ink);color:#a9c6b8;margin-top:40px;padding:32px 0 24px;font-size:.9rem;
  border-top:3px solid var(--amber)}
.foot-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:26px;max-width:var(--wrap);
  margin:0 auto;padding:0 18px}
.foot-grid img{width:126px;height:70px;object-fit:contain;margin-bottom:6px}
.foot-grid p{color:#8fb0a1;font-size:.87rem}
.site-foot h3{font-size:.83rem;letter-spacing:1.1px;text-transform:uppercase;color:var(--amber-lit);
  font-family:var(--sans);margin-bottom:10px}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:7px}
.site-foot a{color:#c4dcd0}
.site-foot a:hover{color:#fff}
.socials{display:flex;gap:9px;margin-top:12px}
.socials a{width:34px;height:34px;border:1px solid var(--ink-line);border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center}
.socials svg{width:17px;height:17px;fill:#bcd6c8}
.socials a:hover{border-color:var(--amber-lit)}
.socials a:hover svg{fill:var(--amber-lit)}
.foot-base{max-width:var(--wrap);margin:24px auto 0;padding:16px 18px 0;
  border-top:1px solid var(--ink-line);display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:.82rem;color:#7fa192}
.age-tag{background:var(--red);color:#fff;font-weight:800;border-radius:var(--radius-sm);
  padding:1px 7px;font-size:.75rem;margin-right:5px}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr}}

/* ---------------- WhatsApp float ---------------- */
.wa-float{position:fixed;right:17px;bottom:17px;width:60px;height:60px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;z-index:60;
  box-shadow:0 6px 18px rgba(0,0,0,.28)}
.wa-float svg{width:33px;height:33px;fill:#fff}
.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;
  border:2px solid #25D366;animation:wa-pulse 2.1s ease-out infinite}
@keyframes wa-pulse{0%{transform:scale(1);opacity:.75}100%{transform:scale(1.55);opacity:0}}
@media (prefers-reduced-motion:reduce){.wa-float::after{animation:none}}
.seo-box ul,.seo-box ol{margin:6px 0 12px}
.seo-box li{margin-bottom:5px}
.seo-box dl{margin:8px 0 12px}
.seo-box dt{font-weight:700;margin-top:8px}
.seo-box dd{margin:2px 0 8px}
.seo-box .tbl{margin:10px 0 12px;font-size:.88rem}