/* ==========================================================================
   btetrade.in — public site
   Identity: a research house, not a fintech funnel. Warm paper ground, a
   deep maroon that reads institutional rather than promotional, a serif for
   anything that makes a claim and a plain sans for everything operational.
   ========================================================================== */

:root{
  --paper:#FAF9F7;
  --surface:#FFFFFF;
  --surface-2:#F2F0EC;
  --ink:#1A1D24;
  --ink-2:#4A4F5A;
  --ink-3:#767C88;
  --rule:#E4E0DA;
  --rule-2:#CFC9C0;
  --accent:#7A2233;
  --accent-2:#96712A;
  --accent-soft:#F6EAEC;
  --accent-line:#D9B9C0;
  --warn:#8A5A00;
  --warn-soft:#FBF2DE;
  --warn-line:#E2C689;
  --measure:68ch;
  --pad:clamp(20px, 5vw, 40px);
  --shadow:0 1px 2px rgba(26,29,36,.05), 0 10px 24px -16px rgba(26,29,36,.25);
}

@media (prefers-color-scheme: dark){
  :root{
    --paper:#14161A;
    --surface:#1B1E24;
    --surface-2:#22262D;
    --ink:#EDEBE7;
    --ink-2:#B2B0AB;
    --ink-3:#82858C;
    --rule:#2C3037;
    --rule-2:#3C424B;
    --accent:#DE97A6;
    --accent-2:#D0AC63;
    --accent-soft:#2A1A1E;
    --accent-line:#4C3037;
    --warn:#DFA854;
    --warn-soft:#2C2314;
    --warn-line:#57451F;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 24px -16px rgba(0,0,0,.7);
  }
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto}

.skip{
  position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;
  padding:10px 16px;z-index:100;border-radius:0 0 4px 0;
}
.skip:focus{left:0}

:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

/* --- typography ---------------------------------------------------------- */
h1,h2,h3{
  font-family:Newsreader,Georgia,"Times New Roman",serif;
  font-weight:500;
  letter-spacing:-.01em;
  color:var(--ink);
  text-wrap:balance;
  margin:0;
}
h1{font-size:clamp(31px,5.2vw,50px);line-height:1.12}
h2{font-size:clamp(24px,3.4vw,33px);line-height:1.2;margin:0 0 10px}
h3{font-size:19px;line-height:1.3;margin:0 0 8px}
h4{
  font-family:"IBM Plex Sans",sans-serif;font-size:11.5px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px;
}
p{margin:0 0 16px;max-width:var(--measure)}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
strong,b{font-weight:600}
code{
  font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.86em;
  background:var(--surface-2);padding:1px 5px;border-radius:3px;
  border:1px solid var(--rule);word-break:break-word;
}
ul,ol{max-width:var(--measure);padding-left:20px;margin:0 0 16px}
li{margin:0 0 8px}
li::marker{color:var(--accent)}
hr{border:0;border-top:1px solid var(--rule);margin:40px 0}

/* --- shell --------------------------------------------------------------- */
.site-head{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--rule);
}
@supports not (backdrop-filter: blur(1px)){ .site-head{background:var(--paper)} }

.bar{
  max-width:1120px;margin:0 auto;padding:0 var(--pad);
  display:flex;align-items:center;gap:16px;min-height:64px;flex-wrap:wrap;
}
.wordmark{
  display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);
  margin-right:auto;
}
.wordmark .mark{
  font-family:Newsreader,serif;font-weight:600;font-size:15px;letter-spacing:.02em;
  background:var(--accent);color:#fff;width:30px;height:30px;border-radius:3px;
  display:grid;place-items:center;
}
@media (prefers-color-scheme: dark){ .wordmark .mark{color:#1A1013} }
.wordmark .name{
  font-family:Newsreader,serif;font-size:19px;font-weight:500;letter-spacing:-.01em;
}

.menu-btn{
  display:none;background:var(--surface);border:1px solid var(--rule-2);
  color:var(--ink);font-family:inherit;font-size:13px;font-weight:500;
  padding:7px 13px;border-radius:4px;cursor:pointer;
}

#nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
#nav a{
  font-size:14.5px;font-weight:500;color:var(--ink-2);text-decoration:none;
  padding:7px 11px;border-radius:4px;
}
#nav a:hover{background:var(--surface-2);color:var(--ink)}
#nav a.here{color:var(--accent);background:var(--accent-soft)}

@media (max-width:760px){
  .menu-btn{display:block}
  #nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding:6px 0 14px;gap:2px}
  #nav.open{display:flex}
  #nav a{padding:10px 12px}
}

main{display:block}

/* --- layout primitives --------------------------------------------------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 var(--pad)}
.narrow{max-width:760px;margin:0 auto;padding:0 var(--pad)}
section{padding:clamp(44px,7vw,76px) 0}
section + section{border-top:1px solid var(--rule)}

.eyebrow{
  font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  margin:0 0 14px;
}
.lede{font-size:clamp(17px,2.2vw,20px);line-height:1.55;color:var(--ink-2);max-width:60ch}

/* --- hero ---------------------------------------------------------------- */
.hero{padding:clamp(52px,9vw,96px) 0 clamp(40px,6vw,64px)}
.hero h1{max-width:19ch}
.hero .lede{margin-top:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.btn{
  display:inline-block;background:var(--accent);color:#fff;text-decoration:none;
  font-size:15px;font-weight:500;padding:11px 22px;border-radius:4px;
  border:1px solid var(--accent);
}
.btn:hover{filter:brightness(1.08)}
@media (prefers-color-scheme: dark){ .btn{color:#1A1013} }
.btn.ghost{background:transparent;color:var(--accent);border-color:var(--accent-line)}
.btn.ghost:hover{background:var(--accent-soft);filter:none}

/* --- the registration-status banner -------------------------------------- */
.pending{
  border:1px solid var(--warn-line);background:var(--warn-soft);
  border-left:3px solid var(--warn);border-radius:0 6px 6px 0;
  padding:18px 20px;margin:0 0 24px;max-width:var(--measure);
}
.pending b{
  display:block;font-family:"IBM Plex Sans",sans-serif;font-size:11.5px;
  font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--warn);margin-bottom:8px;
}
.pending p{margin:0;font-size:15px;color:var(--ink-2)}

/* --- generic callout ----------------------------------------------------- */
.callout{
  border:1px solid var(--rule);border-left:3px solid var(--accent);
  background:var(--surface);padding:18px 20px;border-radius:0 6px 6px 0;
  margin:0 0 22px;max-width:var(--measure);
}
.callout p:last-child{margin:0}

/* --- tiers --------------------------------------------------------------- */
.tiers{display:grid;gap:18px;margin-top:8px}
@media(min-width:820px){ .tiers{grid-template-columns:repeat(3,1fr)} }
.tier{
  border:1px solid var(--rule);border-radius:8px;background:var(--surface);
  padding:26px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow);
}
.tier h3{font-size:22px;margin-bottom:6px}
.tier-sum{font-size:14.5px;color:var(--ink-3);margin:0 0 18px}
.price{
  font-family:Newsreader,serif;font-size:28px;font-weight:500;color:var(--ink);
  margin:0 0 20px;padding-bottom:20px;border-bottom:1px solid var(--rule);
}
.price .per{font-family:"IBM Plex Sans",sans-serif;font-size:13px;color:var(--ink-3);font-weight:400}
.feats{list-style:none;padding:0;margin:0 0 24px;flex:1}
.feats li{
  position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);margin-bottom:10px;
}
.feats li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--accent);
}
.tier .btn{text-align:center}

/* --- tables -------------------------------------------------------------- */
.scroll{overflow-x:auto;border:1px solid var(--rule);border-radius:6px;background:var(--surface);margin:0 0 22px}
table{border-collapse:collapse;width:100%;font-size:14.5px;min-width:460px}
caption{
  text-align:left;padding:13px 16px;font-size:11.5px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);
  border-bottom:1px solid var(--rule);
}
th{
  text-align:left;font-size:11.5px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-3);padding:12px 16px;
  background:var(--surface-2);border-bottom:1px solid var(--rule-2);white-space:nowrap;
}
td{padding:12px 16px;border-bottom:1px solid var(--rule);color:var(--ink-2);vertical-align:top}
tr:last-child td{border-bottom:0}
td code{background:transparent;border:0;padding:0;color:var(--ink)}

/* --- definition-style disclosure rows ------------------------------------ */
.facts{
  border-top:1px solid var(--rule);margin:0 0 24px;max-width:var(--measure);
}
.facts > div{
  display:grid;grid-template-columns:1fr;gap:2px;
  padding:14px 0;border-bottom:1px solid var(--rule);
}
@media(min-width:620px){
  .facts > div{grid-template-columns:220px 1fr;gap:20px;align-items:baseline}
}
.facts dt{
  font-size:12.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  color:var(--ink-3);margin:0;
}
.facts dd{margin:0;color:var(--ink-2)}
.facts dd code{font-size:14px}

/* --- escalation ladder --------------------------------------------------- */
.ladder{list-style:none;padding:0;margin:0 0 24px;max-width:var(--measure);counter-reset:l}
.ladder li{
  position:relative;padding:0 0 22px 40px;margin:0;border-left:1px solid var(--rule);
}
.ladder li:last-child{border-left-color:transparent;padding-bottom:0}
.ladder li::before{
  counter-increment:l;content:counter(l);
  position:absolute;left:-14px;top:-2px;width:27px;height:27px;border-radius:50%;
  background:var(--surface);border:1px solid var(--rule-2);color:var(--accent);
  font-family:"IBM Plex Mono",monospace;font-size:12px;font-weight:500;
  display:grid;place-items:center;
}
.ladder b{display:block;font-size:15px;margin-bottom:3px;color:var(--ink)}
.ladder span{display:block;font-size:14.5px;color:var(--ink-2)}

/* --- footer -------------------------------------------------------------- */
.site-foot{
  border-top:1px solid var(--rule);background:var(--surface-2);margin-top:24px;
}
.foot-inner{max-width:1120px;margin:0 auto;padding:44px var(--pad) 40px}

.foot-risk{
  border:1px solid var(--rule-2);background:var(--surface);border-radius:6px;
  padding:18px 20px;margin-bottom:36px;
}
.risk-lead{font-weight:600;color:var(--ink);margin:0 0 8px;font-size:14.5px;max-width:none}
.risk-sub{margin:0;font-size:13.5px;color:var(--ink-2);max-width:none}

.foot-grid{display:grid;gap:32px;margin-bottom:32px}
@media(min-width:680px){ .foot-grid{grid-template-columns:repeat(2,1fr)} }
@media(min-width:980px){ .foot-grid{grid-template-columns:repeat(4,1fr)} }
.foot-col h4{margin-bottom:12px}
.foot-col p,.foot-col address{font-size:14px;color:var(--ink-2);margin:0 0 10px;font-style:normal;max-width:none}
.foot-col a{color:var(--ink-2);text-decoration:none}
.foot-col a:hover{color:var(--accent);text-decoration:underline}
.foot-meta{display:flex;flex-direction:column;gap:3px;font-size:13px;color:var(--ink-3)}
.foot-meta code{font-size:12.5px}
.foot-links{display:flex;flex-direction:column;gap:7px}
.foot-links a{font-size:14px}

.foot-note{
  font-size:13.5px;color:var(--ink-2);border-top:1px solid var(--rule);
  padding-top:22px;margin:0 0 14px;max-width:none;
}
.copyright{font-size:13px;color:var(--ink-3);margin:0;max-width:none}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}