/* =========================================================
   Arvind Tuli Classes — shared design system
   Display: Bricolage Grotesque · Body: Plus Jakarta Sans · Mono: Space Mono
   ========================================================= */

:root{
  --ink:#16140e;
  --ink-2:#201d15;
  --ink-3:#2b2719;
  --paper:#f6f1e6;
  --paper-2:#efe8d6;
  --paper-3:#e7ddc6;
  --cream-card:#fbf7ee;
  --muted:#605a4b;           /* AA on cream/paper (was #7c766a, ~4.2:1 — failed body) */
  --muted-2:#756f61;         /* AA on cream cards (was #9a9486, ~2.8:1 — strike prices were near-invisible) */
  --line:rgba(22,20,14,.12);
  --line-strong:rgba(22,20,14,.24);
  --accent:#c8f04a;          /* electric lime — for use ON DARK only */
  --accent-deep:#536d10;     /* olive-lime for TEXT on light bg — AA (was #a9d52f, 1.6:1 — text vanished into cream) */
  --accent-deep-bright:#a9d52f; /* original bright lime, for decorative fills on light bg */
  --accent-ink:#16140e;
  --on-dark:#f4efe2;
  --on-dark-muted:#a8a394;
  --danger:#e5573f;
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:30px;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-sm:0 1px 2px rgba(22,20,14,.06), 0 6px 18px rgba(22,20,14,.05);
  --shadow-md:0 4px 10px rgba(22,20,14,.08), 0 22px 50px rgba(22,20,14,.10);
  --shadow-pop:0 18px 50px rgba(22,20,14,.18);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Plus Jakarta Sans",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;line-height:.98;letter-spacing:-.02em;margin:0}
p{margin:0}
::selection{background:var(--accent);color:var(--accent-ink)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:"Space Mono",ui-monospace,monospace}
.eyebrow{
  font-family:"Space Mono",monospace;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);display:inline-flex;align-items:center;gap:9px;
}
.eyebrow::before{content:"";width:18px;height:1.5px;background:var(--accent-deep);display:inline-block}
.eyebrow.on-dark{color:var(--on-dark-muted)}
.accent-text{color:var(--accent-deep)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 24px;border-radius:999px;border:1.5px solid transparent;
  font-weight:700;font-size:15px;letter-spacing:-.01em;
  transition:transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), color .2s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 8px 22px rgba(169,213,47,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(169,213,47,.45)}
.btn-ink{background:var(--ink);color:var(--on-dark)}
.btn-ink:hover{transform:translateY(-2px);box-shadow:var(--shadow-pop)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.btn-ghost.on-dark{color:var(--on-dark);border-color:rgba(244,239,226,.28)}
.btn-ghost.on-dark:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.btn .arrow{transition:transform .25s var(--ease)}
.btn:hover .arrow{transform:translate(3px,-3px)}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(22,20,14,.86);backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid rgba(244,239,226,.1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:12px;color:var(--on-dark)}
.brand-mark{
  width:56px;height:56px;border-radius:50%;flex:none;
  background:#0b1733 center/cover no-repeat;
  background-image:url('/img/atc-logo.png');
  box-shadow:0 4px 14px rgba(0,0,0,.35), 0 0 0 1px rgba(244,239,226,.12);
  font-size:0;color:transparent;
}
/* Footer has more room — show the brand badge larger there. */
.footer-brand .brand-mark{width:76px;height:76px}
.brand-name{font-family:"Bricolage Grotesque";font-weight:800;font-size:18px;letter-spacing:-.02em;line-height:1}
.brand-name span{display:block;font-family:"Space Mono",monospace;font-weight:400;font-size:10.5px;letter-spacing:.22em;color:var(--on-dark-muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  color:var(--on-dark-muted);font-weight:600;font-size:14.5px;
  padding:9px 15px;border-radius:999px;transition:color .2s, background .2s;
}
.nav-links a:hover{color:var(--on-dark)}
.nav-links a.active{color:var(--on-dark);background:rgba(244,239,226,.1)}
.nav-links a.nav-login{color:var(--on-dark);border:1px solid rgba(244,239,226,.24)}
.nav-links a.nav-login:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:none;color:var(--on-dark);padding:8px}
@media(max-width:940px){
  .nav-links{
    position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--ink);padding:14px 18px 22px;border-bottom:1px solid rgba(244,239,226,.1);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 16px;font-size:16px}
  .nav-toggle{display:block}
  .nav-cta .btn:not(.nav-toggle){display:none}
}

/* ---------- section scaffolding ---------- */
section{position:relative}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{font-size:clamp(34px,5vw,58px);margin:18px 0 0}
.sec-head p{color:var(--muted);font-size:18px;margin-top:18px;max-width:600px}
.dark{background:var(--ink);color:var(--on-dark)}
.dark h1,.dark h2,.dark h3{color:var(--on-dark)}
.dark .sec-head p{color:var(--on-dark-muted)}

/* ---------- generic cards ---------- */
.card{background:var(--cream-card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}

/* ---------- stat strip ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:30px 26px;border-left:1px solid rgba(244,239,226,.14)}
.stat:first-child{border-left:none;padding-left:0}
.stat .num{font-family:"Bricolage Grotesque";font-weight:800;font-size:clamp(38px,5vw,58px);letter-spacing:-.03em;line-height:1}
.stat .num .accent-text{color:var(--accent)}
.stat .lab{color:var(--on-dark-muted);font-size:13.5px;margin-top:8px;font-weight:500}
@media(max-width:760px){.stat-row{grid-template-columns:repeat(2,1fr)}.stat{border-left:none;padding:22px 0}.stat:nth-child(odd){padding-right:20px}}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:var(--on-dark);padding:72px 0 88px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px;border-bottom:1px solid rgba(244,239,226,.12)}
.footer h4{font-family:"Space Mono",monospace;font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--on-dark-muted);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--on-dark);opacity:.78;font-size:15px;font-weight:500;transition:opacity .2s,color .2s;width:fit-content}
.footer-links a:hover{opacity:1;color:var(--accent)}
.footer-brand p{color:var(--on-dark-muted);font-size:15px;margin-top:18px;max-width:300px;line-height:1.6}
.footer-mantra{font-family:"Bricolage Grotesque";font-weight:700;font-size:19px;color:var(--on-dark);margin-top:22px;letter-spacing:-.01em}
.footer-mantra b{color:var(--accent)}
.socials{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.soc{width:40px;height:40px;border-radius:11px;border:1px solid rgba(244,239,226,.18);display:grid;place-items:center;color:var(--on-dark);transition:.2s var(--ease)}
.soc:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);transform:translateY(-2px)}
.soc svg{width:18px;height:18px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;padding-top:26px;color:var(--on-dark-muted);font-size:13px}
.footer-bottom .mono{font-size:12px}
.footer-legal{display:flex;gap:20px;flex-wrap:wrap}
.footer-legal a{color:var(--on-dark-muted);transition:color .2s}
.footer-legal a:hover{color:var(--accent)}
.footer-phone{font-family:"Space Mono",monospace;color:var(--on-dark);font-size:13.5px}
/* Footer contact buttons — clickable Call + WhatsApp with icons + visible numbers */
.contact-actions{display:flex;flex-direction:column;gap:11px}
.contact-btn{display:inline-flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;border:1px solid rgba(244,239,226,.18);color:var(--on-dark);transition:.2s var(--ease);width:fit-content;max-width:100%}
.contact-btn svg{width:20px;height:20px;flex:none}
.contact-btn .cb-txt{display:flex;flex-direction:column;line-height:1.2}
.contact-btn .cb-l{font-size:11px;font-family:"Space Mono",monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-muted)}
.contact-btn .cb-n{font-size:14.5px;font-weight:700;color:var(--on-dark)}
.contact-btn.call:hover{background:var(--accent);border-color:var(--accent)}
.contact-btn.call:hover svg,.contact-btn.call:hover .cb-l,.contact-btn.call:hover .cb-n{color:var(--accent-ink)}
.contact-btn.wa{border-color:rgba(37,211,102,.45)}
.contact-btn.wa svg{color:#25d366}
.contact-btn.wa:hover{background:#25d366;border-color:#25d366}
.contact-btn.wa:hover svg,.contact-btn.wa:hover .cb-l,.contact-btn.wa:hover .cb-n{color:#0a2912}
@media(max-width:860px){.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:540px){.footer-top{grid-template-columns:1fr}}

/* ---------- pills / tags ---------- */
.tag{display:inline-flex;align-items:center;gap:7px;font-family:"Space Mono",monospace;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;padding:6px 12px;border-radius:999px;border:1px solid var(--line-strong);color:var(--muted);background:var(--paper)}
.tag.solid{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}
.tag.ink{background:var(--ink);border-color:var(--ink);color:var(--on-dark)}
.tag.danger{background:rgba(229,87,63,.12);border-color:rgba(229,87,63,.4);color:#a83018}/* AA on the light-red pill (was --danger #e5573f, 2.83:1) */

/* ---------- image placeholder ---------- */
.ph{
  background:
    repeating-linear-gradient(135deg, rgba(22,20,14,.05) 0 11px, rgba(22,20,14,.02) 11px 22px),
    var(--paper-2);
  display:grid;place-items:center;color:var(--muted);font-family:"Space Mono",monospace;font-size:12px;letter-spacing:.05em;text-align:center;padding:18px;
}
/* Placeholder label (injected for image-less cards). On the striped cream backdrop the
   old #605a4b text measured 2.68:1 — failed AA ("merged into the background"). A solid ink
   chip with --on-dark text reads ~14:1 over its own opaque fill, legible on ANY .ph backdrop. */
.ph-l{
  position:absolute;z-index:1;max-width:84%;
  font-family:"Space Mono",monospace;font-size:11.5px;letter-spacing:.04em;line-height:1.45;
  text-align:center;color:var(--on-dark);background:rgba(22,20,14,.82);
  padding:7px 11px;border-radius:9px;
}

/* ---------- branded course panel (CA Final classes have no cover photo) ----------
   Shared by home (.pcard) and store (.prod). Navy + gold to read as an
   intentional course banner, not an empty box. Fills the 4/5 image area. */
.classart{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:20px 18px;
  background:linear-gradient(158deg,#1c3160 0%,#101f40 78%);overflow:hidden}
.classart::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 84% 8%, rgba(231,169,59,.32), transparent 46%)}
.classart .ca-top{display:flex;align-items:center;justify-content:space-between;gap:10px;position:relative;z-index:2}
.classart .ca-mark{display:inline-flex;align-items:center;gap:8px;font-family:"Space Mono",monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#f4cd83}
.classart .ca-mark .dot{width:22px;height:22px;border-radius:50%;flex:none;background:#0a1426 center/cover no-repeat;background-image:url('/img/atc-logo.png');box-shadow:0 0 0 1px rgba(231,169,59,.4)}
.classart .ca-kicker{font-family:"Space Mono",monospace;font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:#e6a23c;border:1px solid rgba(230,162,60,.45);border-radius:999px;padding:4px 9px;white-space:nowrap}
.classart .ca-bot{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:flex-end;gap:12px}
.classart .pl{width:50px;height:50px;border-radius:50%;background:var(--accent);display:grid;place-items:center;color:var(--accent-ink);flex:none;box-shadow:0 8px 20px rgba(169,213,47,.35)}
.classart .pl svg{width:22px;height:22px}
.classart .ttl{font-family:"Bricolage Grotesque";font-weight:800;color:#f7f3ea;font-size:30px;letter-spacing:-.02em;line-height:.96}
.classart .sub{font-family:"Space Mono",monospace;font-size:11px;color:rgba(247,243,234,.82);letter-spacing:.06em;margin-top:8px}
.classart .ca-detail{font-family:"Space Mono",monospace;font-size:10px;color:#f4cd83;letter-spacing:.04em;margin-top:6px}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- TSF.ai floating launcher ---------- */
.tsf-fab{
  position:fixed;right:22px;bottom:22px;z-index:70;
  display:inline-flex;align-items:center;gap:12px;
  padding:8px 20px 8px 8px;border-radius:999px;
  background:#0d1426;color:#eef1fa;text-decoration:none;
  box-shadow:0 18px 44px rgba(8,12,26,.4);
  border:1px solid rgba(231,169,59,.32);
  transition:transform .26s var(--ease), box-shadow .26s var(--ease);
  animation:fabIn .6s var(--ease) both .4s;
}
.tsf-fab:hover{transform:translateY(-3px);box-shadow:0 22px 54px rgba(8,12,26,.5)}
@keyframes fabIn{from{opacity:0;transform:translateY(20px) scale(.9)}}
.tsf-fab .av{
  position:relative;width:48px;height:48px;border-radius:50%;flex:none;
  background:#0a1426 center/cover no-repeat;background-image:url('/img/face-final.png');
  box-shadow:inset 0 0 0 2px rgba(232,99,31,.5);
}
.tsf-fab .av::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid rgba(231,169,59,.55);animation:fabPulse 2.6s var(--ease) infinite}
@keyframes fabPulse{0%{transform:scale(.85);opacity:.8}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
.tsf-fab .txt{display:flex;flex-direction:column;line-height:1.05}
.tsf-fab .txt .t{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:15px;letter-spacing:-.01em}
.tsf-fab .txt .t b{color:#e7a93b}
.tsf-fab .txt .s{font-family:"Space Mono",monospace;font-size:10px;letter-spacing:.08em;color:#8a93b4;margin-top:3px;text-transform:uppercase;display:flex;align-items:center;gap:6px}
.tsf-fab .txt .s i{width:6px;height:6px;border-radius:50%;background:#36e0c8;display:inline-block;box-shadow:0 0 6px #36e0c8}
@media(max-width:560px){
  .tsf-fab{right:14px;bottom:14px;padding:7px 16px 7px 7px;gap:9px}
  .tsf-fab .av{width:42px;height:42px}
  .tsf-fab .txt .t{font-size:13.5px}
}