:root{--btm-bg:#03060d;--btm-bg2:#07101f;--btm-panel:#091426;--btm-line:rgba(59,130,246,.28);--btm-cyan:#14c8ff;--btm-blue:#1677ff;--btm-green:#38ff14;--btm-magenta:#e13cff;--btm-violet:#7c3cff;--btm-gold:#ffc52b;--btm-text:#f8fbff;--btm-muted:#a8b6cb;--btm-radius:24px;--btm-shadow:0 20px 80px rgba(0,0,0,.45)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.btm-hackathon-standalone{margin:0;background:#03060d;color:var(--btm-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.btm-page{min-height:100vh;background:radial-gradient(circle at 15% 10%,rgba(32,51,255,.15),transparent 32%),radial-gradient(circle at 85% 15%,rgba(56,255,20,.08),transparent 27%),linear-gradient(180deg,#03060d 0%,#050b16 45%,#02050b 100%);position:relative;overflow:hidden}.btm-grid-bg{position:absolute;inset:0;pointer-events:none;opacity:.25;background-image:linear-gradient(rgba(20,200,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(20,200,255,.07) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(to bottom,black,transparent 80%)}.btm-shell{width:min(1180px,calc(100% - 40px));margin:0 auto;position:relative;z-index:2}.btm-nav{min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:18px 0;border-bottom:1px solid rgba(20,200,255,.18)}.btm-logo-link{display:flex;align-items:center;flex:0 1 auto;min-width:0}.btm-logo-link img{display:block;width:min(var(--btm-logo-width),40vw);max-height:78px;object-fit:contain;object-position:left center}.btm-nav-actions{display:flex;align-items:center;justify-content:flex-end;gap:22px;flex-wrap:wrap}.btm-nav-actions a{color:#dcecff;text-decoration:none;font-size:12px;font-weight:900;letter-spacing:.15em}.btm-nav-actions a:hover{color:var(--btm-green)}
.btm-hero{padding:82px 0 72px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);align-items:center;gap:64px;min-height:690px}.btm-hero-copy{min-width:0}.btm-status{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(56,255,20,.35);background:rgba(56,255,20,.06);padding:9px 13px;border-radius:999px;font-size:11px;font-weight:900;letter-spacing:.14em}.btm-status span{width:8px;height:8px;border-radius:50%;background:var(--btm-green);box-shadow:0 0 16px var(--btm-green)}.btm-kicker,.btm-overline{margin:22px 0 10px;color:var(--btm-cyan);font-size:12px;font-weight:900;letter-spacing:.22em;text-transform:uppercase}.btm-hero h1{font-family:Impact,"Arial Black",sans-serif;font-size:clamp(54px,7vw,108px);line-height:.88;letter-spacing:-.03em;margin:18px 0 22px;max-width:770px;text-transform:uppercase;text-shadow:0 0 28px rgba(22,119,255,.22)}.btm-hero-sub{font-size:clamp(18px,2vw,23px);line-height:1.55;color:#c2cfe0;max-width:700px;margin:0 0 30px}.btm-hero-buttons{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.btm-btn{min-height:52px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;border-radius:10px;font-size:12px;font-weight:950;letter-spacing:.11em;border:1px solid transparent;transition:.2s ease}.btm-btn-primary{color:#04101a;background:linear-gradient(90deg,var(--btm-cyan),var(--btm-green));box-shadow:0 0 30px rgba(20,200,255,.16)}.btm-btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08)}.btm-btn-secondary{color:#eef8ff;border-color:rgba(20,200,255,.45);background:rgba(8,20,40,.75)}.btm-btn-secondary:hover{border-color:var(--btm-green);color:var(--btm-green)}.btm-hero-tertiary{display:flex;gap:24px;flex-wrap:wrap;margin-top:20px}.btm-hero-tertiary a{color:#a8b6cb;text-decoration:none;font-size:12px;font-weight:900;letter-spacing:.08em}.btm-hero-tertiary a:hover{color:var(--btm-magenta)}.btm-hero-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:36px;max-width:650px}.btm-hero-meta div{border:1px solid rgba(20,200,255,.16);background:rgba(3,9,19,.65);padding:14px 16px;border-radius:12px;min-width:0}.btm-hero-meta span{display:block;font-size:9px;color:#6f829c;font-weight:900;letter-spacing:.18em;margin-bottom:5px}.btm-hero-meta strong{display:block;font-size:12px;line-height:1.35;white-space:normal;overflow-wrap:anywhere}.btm-hero-system{min-width:0}.btm-system-frame{position:relative;min-height:470px;border:1px solid rgba(20,200,255,.3);border-radius:30px;padding:34px;overflow:hidden;background:linear-gradient(145deg,rgba(8,21,46,.94),rgba(4,9,18,.9));box-shadow:var(--btm-shadow),inset 0 0 70px rgba(20,200,255,.08)}.btm-system-frame:before,.btm-system-frame:after{content:"";position:absolute;width:220px;height:2px;background:linear-gradient(90deg,transparent,var(--btm-green),transparent);box-shadow:0 0 18px var(--btm-green)}.btm-system-frame:before{top:18px;right:-30px}.btm-system-frame:after{bottom:20px;left:-40px;background:linear-gradient(90deg,transparent,var(--btm-magenta),transparent);box-shadow:0 0 18px var(--btm-magenta)}.btm-system-tag{font-size:10px;font-weight:900;letter-spacing:.17em;color:var(--btm-green)}.btm-system-core{width:138px;height:138px;border-radius:50%;margin:34px auto 28px;display:grid;place-items:center;background:radial-gradient(circle,rgba(56,255,20,.22),rgba(22,119,255,.09) 52%,transparent 54%);border:2px solid var(--btm-cyan);box-shadow:0 0 45px rgba(20,200,255,.35),inset 0 0 30px rgba(56,255,20,.22)}.btm-system-core span{font-family:Impact,sans-serif;font-size:58px;color:white;text-shadow:0 0 24px var(--btm-cyan)}.btm-system-frame h2{font-family:Impact,"Arial Black",sans-serif;text-align:center;font-size:48px;line-height:.95;letter-spacing:.03em;margin:0 0 26px}.btm-system-frame h2 em{font-style:normal;color:var(--btm-green)}.btm-system-lines{display:grid;grid-template-columns:1fr;gap:8px}.btm-system-lines span{padding:11px 14px;background:rgba(20,200,255,.06);border-left:3px solid var(--btm-cyan);font:800 11px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;color:#b8d9f2;letter-spacing:.12em}
.btm-signal-strip{border-top:1px solid rgba(20,200,255,.22);border-bottom:1px solid rgba(20,200,255,.22);background:linear-gradient(90deg,rgba(124,60,255,.11),rgba(20,200,255,.08),rgba(56,255,20,.08));padding:16px 0}.btm-signal-strip .btm-shell{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:12px;font-weight:950;letter-spacing:.14em}.btm-signal-strip i{font-style:normal;color:var(--btm-magenta)}
.btm-section{padding:100px 0}.btm-section-head{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:end;margin-bottom:44px}.btm-section-head .btm-overline{margin-top:0}.btm-section-head h2,.btm-copy-block h2,.btm-challenge-banner h2,.btm-final-cta h2{font-family:Impact,"Arial Black",sans-serif;font-size:clamp(42px,5vw,74px);line-height:.92;letter-spacing:.01em;margin:0}.btm-section-head h2 span,.btm-copy-block h2 span,.btm-challenge-banner h2 span,.btm-final-cta h2 span{color:var(--btm-green)}.btm-section-head>p{color:var(--btm-muted);font-size:17px;line-height:1.7;margin:0;max-width:520px}.btm-events-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.btm-event-card{min-width:0;border:1px solid rgba(20,200,255,.24);border-radius:24px;background:linear-gradient(180deg,rgba(11,22,43,.9),rgba(5,11,22,.95));overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.35);transition:.25s ease}.btm-event-card:hover{transform:translateY(-5px);border-color:rgba(56,255,20,.55);box-shadow:0 24px 80px rgba(8,87,255,.15)}.btm-event-poster{position:relative;aspect-ratio:4/5;overflow:hidden;background:#07101f}.btm-event-poster img{width:100%;height:100%;object-fit:cover;display:block}.btm-poster-placeholder{height:100%;display:grid;place-items:center;text-align:center;font:64px/.85 Impact,sans-serif;background:radial-gradient(circle,var(--btm-blue),#081126 55%)}.btm-event-status{position:absolute;top:14px;right:14px;padding:8px 10px;background:rgba(2,7,15,.88);border:1px solid var(--btm-green);border-radius:999px;color:var(--btm-green);font-size:9px;font-weight:950;letter-spacing:.12em}.btm-event-content{padding:24px}.btm-event-number{font-size:9px;font-weight:900;letter-spacing:.17em;color:var(--btm-magenta)}.btm-event-content h3{font-family:Impact,"Arial Black",sans-serif;font-size:32px;margin:8px 0 4px;letter-spacing:.02em}.btm-event-date{color:var(--btm-cyan);font-size:11px;font-weight:900;letter-spacing:.1em;margin:0 0 20px}.btm-event-info{padding:15px 0;border-top:1px solid rgba(255,255,255,.08)}.btm-event-info strong{display:block;color:var(--btm-gold);font-size:10px;letter-spacing:.13em}.btm-event-info p{color:#c4d0df;font-size:14px;line-height:1.55;margin:6px 0 0}.btm-event-actions{margin-top:16px}.btm-event-actions .btm-btn{width:100%}
.btm-builder-section,.btm-purpose-section{background:linear-gradient(180deg,rgba(5,13,28,.92),rgba(3,7,15,.98));border-top:1px solid rgba(20,200,255,.15);border-bottom:1px solid rgba(20,200,255,.15)}.btm-two-col{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:60px;align-items:start}.btm-copy-block{position:sticky;top:26px;min-width:0}.btm-copy-block p:not(.btm-overline){color:var(--btm-muted);font-size:17px;line-height:1.7}.btm-callout{margin-top:28px;padding:18px;border:1px solid rgba(56,255,20,.25);border-left:4px solid var(--btm-green);background:rgba(56,255,20,.04);border-radius:12px}.btm-callout strong,.btm-callout span{display:block}.btm-callout strong{font-size:11px;letter-spacing:.12em;color:var(--btm-green);margin-bottom:7px}.btm-callout span{color:#c7d4e4;font-size:14px;line-height:1.55}.btm-form-card{border:1px solid rgba(20,200,255,.3);background:rgba(6,15,30,.94);border-radius:24px;padding:28px;box-shadow:var(--btm-shadow)}.btm-form-card-gold{border-color:rgba(255,197,43,.32)}.btm-form{display:grid;gap:16px}.btm-field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.btm-field{display:grid;gap:7px}.btm-field span,.btm-check-field legend{font-size:10px;font-weight:900;letter-spacing:.13em;color:#9fb3ca}.btm-field input,.btm-field select,.btm-field textarea{width:100%;min-width:0;border:1px solid rgba(20,200,255,.22);background:#050c18;color:white;border-radius:10px;padding:13px 14px;font:inherit;outline:none}.btm-field input:focus,.btm-field select:focus,.btm-field textarea:focus{border-color:var(--btm-green);box-shadow:0 0 0 3px rgba(56,255,20,.08)}.btm-field textarea{resize:vertical}.btm-submit{border:0;border-radius:10px;min-height:54px;padding:0 20px;background:linear-gradient(90deg,var(--btm-blue),var(--btm-cyan),var(--btm-green));color:#031018;font-weight:950;letter-spacing:.1em;cursor:pointer}.btm-submit-gold{background:linear-gradient(90deg,#b97800,var(--btm-gold),#fff3a0)}.btm-form-note{font-size:11px!important;color:#71839a!important;margin:0!important}.btm-honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.btm-alert{padding:14px 16px;border-radius:10px;margin-bottom:16px}.btm-alert strong,.btm-alert span{display:block}.btm-alert strong{font-size:12px;letter-spacing:.1em}.btm-alert span{font-size:13px;margin-top:5px}.btm-alert-success{border:1px solid rgba(56,255,20,.4);background:rgba(56,255,20,.06)}.btm-alert-error{border:1px solid rgba(255,88,88,.4);background:rgba(255,88,88,.06)}.btm-closed-state{text-align:center;padding:50px 20px}.btm-closed-state span{font-size:10px;color:var(--btm-cyan);letter-spacing:.15em;font-weight:900}.btm-closed-state h3{font:40px Impact,sans-serif;margin:10px 0}.btm-check-field{border:0;padding:0;margin:0}.btm-check-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:9px}.btm-check-grid label{display:flex;gap:8px;align-items:flex-start;background:#050c18;border:1px solid rgba(20,200,255,.15);border-radius:9px;padding:10px;font-size:12px;color:#cad5e4}.btm-check-grid input{margin-top:2px}
.btm-challenge-banner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;border:1px solid rgba(225,60,255,.28);background:radial-gradient(circle at 80% 20%,rgba(225,60,255,.12),transparent 35%),linear-gradient(135deg,rgba(12,21,43,.98),rgba(5,9,19,.98));border-radius:28px;padding:42px;overflow:hidden}.btm-challenge-banner>div:first-child>p:not(.btm-overline){color:var(--btm-muted);font-size:17px;line-height:1.65;max-width:650px}.btm-big-quote{border-left:1px solid rgba(225,60,255,.35);padding-left:34px;font-family:Impact,"Arial Black",sans-serif;font-size:clamp(32px,4vw,58px);line-height:.95}.btm-big-quote span,.btm-big-quote strong,.btm-big-quote em{display:block}.btm-big-quote strong{color:var(--btm-cyan)}.btm-big-quote em{font-style:normal;color:var(--btm-magenta)}.btm-lab-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:26px 0 60px}.btm-lab-steps article{padding:22px;border:1px solid rgba(20,200,255,.18);background:rgba(7,16,31,.7);border-radius:16px}.btm-lab-steps b{font:24px Impact,sans-serif;color:var(--btm-green)}.btm-lab-steps strong{display:block;margin:12px 0 8px;font-size:12px;letter-spacing:.09em}.btm-lab-steps p{color:var(--btm-muted);font-size:13px;line-height:1.55;margin:0}.btm-form-layout{padding-top:10px}.btm-purpose-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.btm-purpose-grid article{min-height:230px;padding:24px;border:1px solid rgba(20,200,255,.18);border-radius:18px;background:linear-gradient(180deg,rgba(9,20,38,.95),rgba(5,10,20,.95));position:relative;overflow:hidden}.btm-purpose-grid article:after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;right:-35px;bottom:-35px;background:radial-gradient(circle,rgba(56,255,20,.15),transparent 70%)}.btm-purpose-grid span{font:28px Impact,sans-serif;color:var(--btm-magenta)}.btm-purpose-grid h3{font:30px Impact,sans-serif;margin:18px 0 10px}.btm-purpose-grid p{color:var(--btm-muted);font-size:14px;line-height:1.55}.btm-gold{color:var(--btm-gold)}.btm-sponsor-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:70px}.btm-sponsor-card{text-decoration:none;color:white;padding:24px;border:1px solid rgba(255,197,43,.22);border-radius:18px;background:linear-gradient(145deg,rgba(27,18,5,.35),rgba(6,12,24,.95));min-height:220px;transition:.2s ease}.btm-sponsor-card:hover{transform:translateY(-4px);border-color:var(--btm-gold)}.btm-sponsor-card>span{font:28px Impact,sans-serif;color:var(--btm-gold)}.btm-sponsor-card h3{font:24px Impact,sans-serif;letter-spacing:.03em;margin:15px 0 10px}.btm-sponsor-card p{color:var(--btm-muted);font-size:14px;line-height:1.55}.btm-sponsor-card b{font-size:10px;letter-spacing:.12em;color:var(--btm-gold)}.btm-final-cta{text-align:center;padding:105px 0;background:radial-gradient(circle at 50% 20%,rgba(22,119,255,.18),transparent 45%),linear-gradient(180deg,#040915,#02050b);border-top:1px solid rgba(20,200,255,.18)}.btm-final-cta .btm-overline{margin-top:0}.btm-final-cta .btm-hero-buttons{justify-content:center;margin-top:30px}.btm-footer{padding:34px 0;border-top:1px solid rgba(20,200,255,.16);background:#02050b}.btm-footer .btm-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}.btm-footer img{width:180px;height:72px;object-fit:contain;object-position:left center}.btm-footer p{font-size:10px;letter-spacing:.16em;color:#8799b0}.btm-footer a{color:var(--btm-cyan);text-decoration:none;font-size:10px;font-weight:900;letter-spacing:.12em}
@media(max-width:1050px){.btm-nav{align-items:flex-start}.btm-nav-actions{gap:14px}.btm-hero{grid-template-columns:1fr;gap:38px;min-height:0;padding-top:58px}.btm-hero-copy{max-width:850px}.btm-hero-system{max-width:760px;width:100%;margin:0 auto}.btm-events-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.btm-purpose-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.btm-lab-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:780px){.btm-shell{width:min(100% - 28px,1180px)}.btm-nav{min-height:auto;flex-direction:column;gap:14px;padding:14px 0}.btm-logo-link img{width:min(var(--btm-logo-width),72vw);max-height:68px}.btm-nav-actions{width:100%;justify-content:flex-start;gap:10px 16px}.btm-nav-actions a{font-size:10px}.btm-hero{padding:46px 0 54px;gap:32px}.btm-hero h1{font-size:clamp(48px,15vw,76px);line-height:.9;max-width:100%;overflow-wrap:normal;word-break:normal}.btm-hero-sub{font-size:17px}.btm-hero-buttons{align-items:stretch}.btm-btn{width:100%}.btm-hero-tertiary{gap:12px 18px}.btm-hero-meta{grid-template-columns:1fr}.btm-system-frame{min-height:390px;padding:26px 20px}.btm-system-frame h2{font-size:42px}.btm-system-core{width:112px;height:112px}.btm-system-core span{font-size:48px}.btm-signal-strip .btm-shell{justify-content:center;font-size:10px}.btm-section{padding:72px 0}.btm-section-head,.btm-two-col,.btm-challenge-banner{grid-template-columns:1fr;gap:28px}.btm-section-head{margin-bottom:30px}.btm-section-head>p{font-size:15px}.btm-events-grid,.btm-purpose-grid,.btm-sponsor-grid,.btm-lab-steps{grid-template-columns:1fr}.btm-event-poster{aspect-ratio:5/6}.btm-copy-block{position:static}.btm-field-row,.btm-check-grid{grid-template-columns:1fr}.btm-form-card{padding:20px}.btm-challenge-banner{padding:28px 22px}.btm-big-quote{border-left:0;border-top:1px solid rgba(225,60,255,.3);padding:24px 0 0;font-size:42px}.btm-purpose-grid article{min-height:0}.btm-footer .btm-shell{flex-direction:column;align-items:flex-start}}
@media(max-width:440px){.btm-shell{width:min(100% - 22px,1180px)}.btm-nav-actions a{font-size:9px}.btm-hero h1{font-size:52px}.btm-hero-sub{font-size:16px}.btm-section-head h2,.btm-copy-block h2,.btm-challenge-banner h2,.btm-final-cta h2{font-size:46px}.btm-event-content{padding:20px}.btm-event-content h3{font-size:29px}.btm-system-frame{min-height:360px}.btm-system-frame h2{font-size:38px}.btm-form-card{border-radius:18px;padding:16px}.btm-field input,.btm-field select,.btm-field textarea{padding:12px}.btm-challenge-banner{border-radius:20px}.btm-purpose-grid article,.btm-sponsor-card{padding:20px}}


/* ==== Version 4 layout overrides ==== */
.btm-hero{grid-template-columns:minmax(170px,.7fr) minmax(0,1.55fr) minmax(170px,.7fr);gap:26px;align-items:center;min-height:calc(100vh - 94px);padding:58px 0 72px}
.btm-hero-copy-center{max-width:100%;text-align:center;display:flex;flex-direction:column;align-items:center;position:relative;z-index:2}
.btm-hero-copy-center .btm-kicker,.btm-hero-copy-center .btm-hero-sub{max-width:780px}
.btm-hero-copy-center h1{max-width:960px}
.btm-hero-copy-center .btm-hero-buttons,.btm-hero-copy-center .btm-hero-tertiary,.btm-hero-copy-center .btm-hero-meta{justify-content:center}
.btm-hero-route{margin-top:22px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px 14px;padding:14px 18px;border:1px solid rgba(20,200,255,.18);border-radius:999px;background:rgba(8,18,34,.72);box-shadow:0 20px 40px rgba(0,0,0,.24)}
.btm-hero-route span{font-size:11px;font-weight:900;letter-spacing:.16em;color:#d8e4f4}.btm-hero-route i{font-style:normal;color:var(--btm-green);font-weight:900}
.btm-hero-flank{display:flex;justify-content:center;position:relative;z-index:1;min-width:0}
.btm-bot-card{width:min(100%,260px);min-height:440px;border-radius:28px;border:1px solid rgba(20,200,255,.22);background:linear-gradient(180deg,rgba(10,20,40,.94),rgba(5,10,20,.94));box-shadow:0 30px 60px rgba(0,0,0,.35),inset 0 0 0 1px rgba(255,255,255,.03);position:relative;overflow:hidden;padding:26px 22px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.btm-bot-card:before{content:"";position:absolute;inset:14px;border-radius:22px;border:1px solid rgba(255,255,255,.05);pointer-events:none}
.btm-bot-card-left{box-shadow:-18px 30px 60px rgba(0,0,0,.35),0 0 50px rgba(226,58,255,.12),inset 0 0 0 1px rgba(255,255,255,.03)}
.btm-bot-card-right{box-shadow:18px 30px 60px rgba(0,0,0,.35),0 0 50px rgba(20,200,255,.12),inset 0 0 0 1px rgba(255,255,255,.03)}
.btm-bot-scan{position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent 15%,transparent 85%,rgba(255,255,255,.02));opacity:.7}
.btm-bot-head{width:138px;height:150px;border-radius:46% 46% 40% 40% / 38% 38% 52% 52%;position:relative;background:radial-gradient(circle at 40% 35%,rgba(255,255,255,.35),transparent 28%),linear-gradient(180deg,#101f40,#071122);border:1px solid rgba(20,200,255,.22);box-shadow:0 0 42px rgba(20,200,255,.16)}
.btm-bot-card-left .btm-bot-head{border-color:rgba(226,58,255,.24);box-shadow:0 0 42px rgba(226,58,255,.18)}
.btm-bot-head:before{content:"";position:absolute;left:24px;right:24px;top:52px;height:26px;border-radius:14px;background:linear-gradient(90deg,rgba(226,58,255,.9),rgba(20,200,255,.9));box-shadow:0 0 24px rgba(20,200,255,.35)}
.btm-bot-head span{position:absolute;left:50%;top:22px;transform:translateX(-50%);width:14px;height:14px;border-radius:50%;background:var(--btm-green);box-shadow:0 0 16px rgba(56,255,20,.45)}
.btm-bot-neck{width:48px;height:18px;border:1px solid rgba(20,200,255,.22);border-top:0;background:linear-gradient(180deg,rgba(20,200,255,.2),rgba(20,200,255,.04));margin-top:6px}
.btm-bot-body{width:178px;height:170px;border-radius:36px 36px 24px 24px;background:radial-gradient(circle at 50% 20%,rgba(255,255,255,.15),transparent 26%),linear-gradient(180deg,#0f2143,#071120);border:1px solid rgba(20,200,255,.16);position:relative;box-shadow:0 0 36px rgba(20,200,255,.12)}
.btm-bot-card-left .btm-bot-body{border-color:rgba(226,58,255,.18);box-shadow:0 0 36px rgba(226,58,255,.12)}
.btm-bot-body:before,.btm-bot-body:after{content:"";position:absolute;top:32px;width:30px;height:112px;border-radius:20px;background:linear-gradient(180deg,rgba(20,200,255,.26),rgba(20,200,255,.05));border:1px solid rgba(20,200,255,.14)}
.btm-bot-card-left .btm-bot-body:before,.btm-bot-card-left .btm-bot-body:after{background:linear-gradient(180deg,rgba(226,58,255,.26),rgba(226,58,255,.05));border-color:rgba(226,58,255,.16)}
.btm-bot-body:before{left:-18px}.btm-bot-body:after{right:-18px}
.btm-bot-caption{margin-top:18px;font-size:11px;font-weight:900;letter-spacing:.18em;color:var(--btm-cyan)}
.btm-bot-card-left .btm-bot-caption{color:var(--btm-magenta)}

.btm-sponsor-buckets{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:52px}
.btm-sponsor-bucket{cursor:default;min-height:0}
.btm-mini-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px}
.btm-mini-list li{color:#d1dbea;font-size:13px;line-height:1.4;padding-left:16px;position:relative}
.btm-mini-list li:before{content:"•";position:absolute;left:0;top:0;color:var(--btm-gold);font-size:16px;line-height:1}

.btm-final-copy{max-width:720px;margin:16px auto 0;color:var(--btm-muted);font-size:17px;line-height:1.7}

@media(max-width:1180px){.btm-hero{grid-template-columns:220px minmax(0,1fr) 220px}.btm-bot-card{min-height:400px}}
@media(max-width:1050px){.btm-hero{grid-template-columns:1fr;min-height:0}.btm-hero-flank{display:none}.btm-hero-copy-center{max-width:850px;margin:0 auto}.btm-sponsor-buckets{grid-template-columns:1fr}}
@media(max-width:780px){.btm-hero-route{border-radius:18px}.btm-final-cta .btm-hero-buttons{flex-direction:column}}


/* ==== Version 5 visual refresh: brighter / more futuristic / more 3D ==== */
:root{--btm-bg:#040713;--btm-bg2:#0b1030;--btm-panel:#101735;--btm-line:rgba(173,104,255,.35);--btm-shadow:0 28px 90px rgba(3,8,25,.52)}
body.btm-hackathon-standalone{background:radial-gradient(circle at 20% 0%,rgba(152,70,255,.22),transparent 28%),radial-gradient(circle at 80% 0%,rgba(20,200,255,.18),transparent 26%),#03060d}
.btm-page{background:
  radial-gradient(circle at 18% 10%,rgba(188,72,255,.22),transparent 26%),
  radial-gradient(circle at 82% 12%,rgba(20,200,255,.16),transparent 26%),
  radial-gradient(circle at 52% 40%,rgba(123,60,255,.12),transparent 30%),
  linear-gradient(180deg,#050816 0%,#081127 36%,#060a1b 100%)}
.btm-page:before,.btm-page:after{content:"";position:absolute;pointer-events:none;filter:blur(18px);opacity:.9;z-index:0}
.btm-page:before{width:540px;height:540px;left:-140px;top:220px;border-radius:50%;background:radial-gradient(circle,rgba(229,71,255,.18) 0%,rgba(229,71,255,.07) 38%,transparent 68%)}
.btm-page:after{width:520px;height:520px;right:-120px;top:520px;border-radius:50%;background:radial-gradient(circle,rgba(20,200,255,.14) 0%,rgba(20,200,255,.06) 38%,transparent 68%)}
.btm-grid-bg{opacity:.42;background-image:linear-gradient(rgba(20,200,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(225,60,255,.065) 1px,transparent 1px);background-size:46px 46px}
.btm-shell{z-index:2}

.btm-nav{border-bottom:1px solid rgba(225,60,255,.16);background:linear-gradient(180deg,rgba(9,16,38,.72),rgba(9,16,38,.08));backdrop-filter:blur(10px)}
.btm-nav-actions a{color:#eef5ff;text-shadow:0 0 18px rgba(124,60,255,.18)}
.btm-nav-actions a:hover{color:var(--btm-magenta)}

.btm-status{background:linear-gradient(90deg,rgba(56,255,20,.1),rgba(225,60,255,.08));box-shadow:0 0 0 1px rgba(255,255,255,.03),0 10px 30px rgba(56,255,20,.08)}
.btm-kicker,.btm-overline{text-shadow:0 0 18px rgba(20,200,255,.16)}
.btm-hero h1,.btm-section-head h2,.btm-copy-block h2,.btm-challenge-banner h2,.btm-final-cta h2{text-shadow:0 6px 0 rgba(0,0,0,.18),0 0 30px rgba(255,255,255,.05),0 0 46px rgba(20,200,255,.12)}
.btm-hero h1{background:linear-gradient(180deg,#ffffff 0%,#eef4ff 48%,#ccd7ea 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 10px 24px rgba(12,18,35,.36))}
.btm-section-head h2 span,.btm-copy-block h2 span,.btm-challenge-banner h2 span,.btm-final-cta h2 span{color:var(--btm-magenta);text-shadow:0 0 26px rgba(225,60,255,.18)}
.btm-hero-sub,.btm-section-head>p,.btm-copy-block p:not(.btm-overline),.btm-final-copy{color:#d4dcf0}

.btm-btn{border-radius:14px;position:relative;overflow:hidden;box-shadow:0 10px 26px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.08)}
.btm-btn:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.18),transparent 46%);opacity:.55;pointer-events:none}
.btm-btn-primary{background:linear-gradient(90deg,#1680ff 0%,#24cbff 30%,#8d45ff 67%,#38ff14 100%);box-shadow:0 16px 38px rgba(20,200,255,.18),0 0 36px rgba(225,60,255,.1)}
.btm-btn-secondary{background:linear-gradient(180deg,rgba(22,32,68,.88),rgba(11,18,38,.88));border-color:rgba(225,60,255,.34);box-shadow:0 14px 32px rgba(0,0,0,.24),0 0 20px rgba(225,60,255,.08)}
.btm-btn-secondary:hover{border-color:var(--btm-magenta);color:#fff;box-shadow:0 16px 36px rgba(225,60,255,.14)}
.btm-hero-tertiary a{color:#d7e0ef}.btm-hero-tertiary a:hover{color:#ffd7ff}
.btm-hero-meta div,.btm-hero-route{background:linear-gradient(180deg,rgba(12,22,48,.88),rgba(8,13,28,.82));border-color:rgba(180,92,255,.18);box-shadow:0 16px 40px rgba(2,7,20,.22), inset 0 1px 0 rgba(255,255,255,.03)}
.btm-hero-route{background:linear-gradient(90deg,rgba(11,20,40,.92),rgba(16,14,46,.88),rgba(9,24,38,.9))}

.btm-bot-card{background:linear-gradient(180deg,rgba(16,25,58,.94),rgba(8,12,28,.94));border-color:rgba(180,92,255,.22);transform:perspective(1200px) rotateY(0deg) translateZ(0);box-shadow:0 34px 80px rgba(2,7,20,.38),0 0 44px rgba(225,60,255,.08), inset 0 0 0 1px rgba(255,255,255,.03)}
.btm-hero-flank-left .btm-bot-card{transform:perspective(1200px) rotateY(12deg)}
.btm-hero-flank-right .btm-bot-card{transform:perspective(1200px) rotateY(-12deg)}
.btm-bot-card:after{content:"";position:absolute;left:22px;right:22px;bottom:18px;height:12px;border-radius:999px;background:radial-gradient(circle,rgba(225,60,255,.42),transparent 68%);filter:blur(8px)}
.btm-bot-head{background:radial-gradient(circle at 45% 30%,rgba(255,255,255,.46),transparent 22%),linear-gradient(180deg,#182c67,#0b1330);box-shadow:0 0 42px rgba(20,200,255,.18), inset 0 10px 22px rgba(255,255,255,.05)}
.btm-bot-body{background:radial-gradient(circle at 50% 20%,rgba(255,255,255,.18),transparent 24%),linear-gradient(180deg,#16316b,#0a132f);box-shadow:0 0 38px rgba(20,200,255,.12), inset 0 16px 22px rgba(255,255,255,.04)}
.btm-bot-card-left .btm-bot-head,.btm-bot-card-left .btm-bot-body{box-shadow:0 0 42px rgba(225,60,255,.16), inset 0 10px 20px rgba(255,255,255,.04)}

.btm-signal-strip{background:linear-gradient(90deg,rgba(123,60,255,.22),rgba(225,60,255,.12) 28%,rgba(20,200,255,.12) 66%,rgba(56,255,20,.08));box-shadow:inset 0 1px 0 rgba(255,255,255,.03)}

.btm-section{position:relative}
.btm-section:before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(225,60,255,.28),rgba(20,200,255,.22),transparent);opacity:.65}
.btm-events-grid,.btm-sponsor-grid,.btm-lab-steps,.btm-two-col{position:relative;z-index:2}

.btm-event-card,.btm-form-card,.btm-challenge-banner,.btm-sponsor-card,.btm-lab-steps article,.btm-callout{backdrop-filter:blur(10px)}
.btm-event-card{border-color:rgba(180,92,255,.22);background:linear-gradient(180deg,rgba(15,25,56,.92),rgba(8,13,28,.96));box-shadow:0 24px 70px rgba(3,8,25,.36),0 0 30px rgba(123,60,255,.06)}
.btm-event-card:hover{border-color:rgba(225,60,255,.52);box-shadow:0 28px 85px rgba(3,8,25,.42),0 0 38px rgba(225,60,255,.12);transform:translateY(-8px) scale(1.01)}
.btm-event-content h3,.btm-sponsor-card h3{text-shadow:0 4px 18px rgba(255,255,255,.04)}
.btm-event-status{background:linear-gradient(180deg,rgba(12,10,34,.92),rgba(11,17,31,.92));border-color:var(--btm-magenta);color:#ffe2ff;box-shadow:0 0 18px rgba(225,60,255,.18)}
.btm-event-info strong{color:#ffd778}

.btm-builder-section{background:
  radial-gradient(circle at 18% 24%,rgba(225,60,255,.08),transparent 26%),
  radial-gradient(circle at 82% 16%,rgba(20,200,255,.08),transparent 24%),
  linear-gradient(180deg,rgba(8,15,34,.96),rgba(5,8,20,.98));border-top:1px solid rgba(180,92,255,.16);border-bottom:1px solid rgba(20,200,255,.16)}
.btm-form-card{background:linear-gradient(180deg,rgba(12,22,50,.92),rgba(7,12,28,.96));border-color:rgba(180,92,255,.28);box-shadow:0 26px 80px rgba(3,8,24,.42),0 0 30px rgba(225,60,255,.08), inset 0 1px 0 rgba(255,255,255,.03)}
.btm-form-card:before{content:"";position:absolute;inset:0;border-radius:24px;padding:1px;background:linear-gradient(145deg,rgba(225,60,255,.22),rgba(20,200,255,.1),transparent 45%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.btm-form-card{position:relative}
.btm-form-card-gold{border-color:rgba(255,197,43,.28);box-shadow:0 26px 80px rgba(3,8,24,.42),0 0 28px rgba(255,197,43,.07),0 0 22px rgba(225,60,255,.06)}
.btm-field input,.btm-field select,.btm-field textarea{background:linear-gradient(180deg,rgba(5,10,24,.96),rgba(8,14,28,.98));border-color:rgba(180,92,255,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.02)}
.btm-field input:focus,.btm-field select:focus,.btm-field textarea:focus{border-color:var(--btm-magenta);box-shadow:0 0 0 3px rgba(225,60,255,.1),0 0 18px rgba(20,200,255,.08)}
.btm-check-grid label{background:linear-gradient(180deg,rgba(8,14,28,.96),rgba(6,11,24,.96));border-color:rgba(180,92,255,.16)}
.btm-submit{background:linear-gradient(90deg,#1677ff 0%,#24cfff 32%,#b445ff 72%,#38ff14 100%);box-shadow:0 16px 36px rgba(20,200,255,.14),0 0 28px rgba(225,60,255,.12)}
.btm-submit-gold{background:linear-gradient(90deg,#d59010 0%,#ffc52b 22%,#d05eff 70%,#8ae7ff 100%)}
.btm-callout{background:linear-gradient(135deg,rgba(23,40,25,.5),rgba(25,12,42,.42));border-color:rgba(56,255,20,.3);box-shadow:0 18px 40px rgba(0,0,0,.18)}

.btm-sponsor-card{background:linear-gradient(145deg,rgba(36,22,10,.52),rgba(17,15,42,.9) 52%,rgba(8,13,28,.96));border-color:rgba(255,197,43,.26);box-shadow:0 20px 60px rgba(2,7,20,.3),0 0 22px rgba(225,60,255,.05)}
.btm-sponsor-card:hover{transform:translateY(-6px) scale(1.01);box-shadow:0 26px 70px rgba(2,7,20,.36),0 0 30px rgba(255,197,43,.12)}
.btm-mini-list li{color:#e0e7f4}

.btm-challenge-banner{background:
  radial-gradient(circle at 15% 20%,rgba(225,60,255,.13),transparent 32%),
  radial-gradient(circle at 82% 20%,rgba(20,200,255,.12),transparent 28%),
  linear-gradient(135deg,rgba(16,24,54,.98),rgba(9,11,30,.98));border-color:rgba(225,60,255,.26);box-shadow:0 24px 70px rgba(2,7,20,.32),0 0 32px rgba(225,60,255,.08)}
.btm-big-quote{color:#f7fbff;text-shadow:0 10px 28px rgba(5,8,20,.28)}
.btm-big-quote strong{color:var(--btm-cyan)}
.btm-big-quote em{color:var(--btm-magenta)}
.btm-lab-steps article{background:linear-gradient(180deg,rgba(14,23,48,.78),rgba(8,12,24,.82));border-color:rgba(180,92,255,.18);box-shadow:0 18px 40px rgba(2,7,20,.22)}
.btm-lab-steps article b{color:var(--btm-magenta);text-shadow:0 0 18px rgba(225,60,255,.16)}

.btm-final-cta{background:radial-gradient(circle at 20% 15%,rgba(225,60,255,.16),transparent 24%),radial-gradient(circle at 80% 20%,rgba(20,200,255,.14),transparent 24%),linear-gradient(180deg,#070d20,#03060d)}
.btm-footer{background:linear-gradient(180deg,#060915,#03050a)}

@media(max-width:1050px){
  .btm-page:before{top:120px;left:-180px}.btm-page:after{top:760px;right:-180px}
  .btm-hero h1{filter:none}
}
@media(max-width:780px){
  .btm-page:before,.btm-page:after{width:360px;height:360px;filter:blur(12px)}
  .btm-btn{border-radius:12px}
  .btm-form-card,.btm-event-card,.btm-challenge-banner,.btm-sponsor-card{backdrop-filter:none}
}

/* ==== Version 6 hero: abstract 3D holographic flank systems ==== */
.btm-hero{grid-template-columns:minmax(190px,.72fr) minmax(0,1.55fr) minmax(190px,.72fr);gap:30px}
.btm-holo{width:min(100%,275px);min-height:470px;position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;isolation:isolate;transform-style:preserve-3d;perspective:1200px}
.btm-holo:before{content:"";position:absolute;inset:18px 4px 40px;border-radius:30px;background:linear-gradient(180deg,rgba(18,28,60,.68),rgba(8,12,28,.5));border:1px solid rgba(255,255,255,.06);box-shadow:0 28px 80px rgba(0,0,0,.28),inset 0 0 70px rgba(255,255,255,.02);z-index:-3}
.btm-holo-build:before{border-color:rgba(225,60,255,.28);box-shadow:0 30px 80px rgba(0,0,0,.32),0 0 55px rgba(225,60,255,.13),inset 0 0 70px rgba(225,60,255,.05)}
.btm-holo-market:before{border-color:rgba(20,200,255,.28);box-shadow:0 30px 80px rgba(0,0,0,.32),0 0 55px rgba(20,200,255,.13),inset 0 0 70px rgba(20,200,255,.05)}
.btm-holo-core{width:128px;height:128px;border-radius:24px;display:grid;place-items:center;position:relative;transform:rotate(45deg) translateZ(28px);background:linear-gradient(145deg,rgba(56,20,88,.9),rgba(10,20,52,.96));border:2px solid rgba(225,60,255,.72);box-shadow:0 0 22px rgba(225,60,255,.4),0 0 64px rgba(124,60,255,.24),inset 0 0 30px rgba(225,60,255,.15)}
.btm-holo-core:before,.btm-holo-core:after{content:"";position:absolute;inset:14px;border:1px solid rgba(20,200,255,.42);border-radius:18px}
.btm-holo-core:after{inset:28px;border-color:rgba(56,255,20,.38)}
.btm-holo-core span{transform:rotate(-45deg);font:72px/1 Impact,"Arial Black",sans-serif;color:#fff;text-shadow:0 0 20px var(--btm-magenta),0 0 30px var(--btm-cyan)}
.btm-holo-orbit{position:absolute;border-radius:50%;border:1px solid rgba(225,60,255,.42);box-shadow:0 0 22px rgba(225,60,255,.18);transform:rotateX(68deg) rotateZ(18deg)}
.btm-orbit-one{width:210px;height:210px;top:96px}.btm-orbit-two{width:252px;height:252px;top:76px;border-color:rgba(20,200,255,.32);transform:rotateX(70deg) rotateZ(-22deg)}
.btm-holo-float{position:absolute;padding:8px 12px;border-radius:9px;background:linear-gradient(180deg,rgba(18,25,56,.96),rgba(9,12,28,.96));font:900 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em;color:#eef8ff;border:1px solid rgba(255,255,255,.08);box-shadow:0 12px 28px rgba(0,0,0,.2)}
.btm-holo-build .btm-float-a{left:4px;top:140px;border-color:rgba(225,60,255,.36);color:#ffb7ff}.btm-holo-build .btm-float-b{right:-4px;top:252px;border-color:rgba(20,200,255,.32);color:#aeefff}
.btm-holo-market .btm-float-a{right:0;top:122px;border-color:rgba(20,200,255,.34);color:#aeefff}.btm-holo-market .btm-float-b{left:0;top:274px;border-color:rgba(56,255,20,.28);color:#c8ffbd}
.btm-holo-base{position:absolute;bottom:44px;width:190px;height:32px;border-radius:50%;background:radial-gradient(ellipse at center,rgba(225,60,255,.42),rgba(20,200,255,.15) 40%,transparent 72%);filter:blur(2px);box-shadow:0 0 30px rgba(225,60,255,.2)}
.btm-holo-market .btm-holo-base{background:radial-gradient(ellipse at center,rgba(20,200,255,.4),rgba(56,255,20,.12) 42%,transparent 72%)}
.btm-holo-caption{position:absolute;bottom:16px;font-size:10px;font-weight:900;letter-spacing:.18em;color:var(--btm-magenta);text-shadow:0 0 14px rgba(225,60,255,.28)}
.btm-holo-market .btm-holo-caption{color:var(--btm-cyan);text-shadow:0 0 14px rgba(20,200,255,.28)}
.btm-market-spine{width:12px;height:210px;border-radius:999px;background:linear-gradient(180deg,var(--btm-cyan),var(--btm-violet),var(--btm-green));box-shadow:0 0 28px rgba(20,200,255,.28);position:absolute;top:92px;left:62px}
.btm-market-node{position:absolute;width:46px;height:46px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff 0 8%,var(--btm-cyan) 10%,#0d3263 48%,#071326 72%);border:1px solid rgba(20,200,255,.6);box-shadow:0 0 25px rgba(20,200,255,.32)}
.btm-node-one{top:86px;left:45px}.btm-node-two{top:176px;left:45px;background:radial-gradient(circle at 35% 35%,#fff 0 8%,var(--btm-magenta) 10%,#54206d 48%,#140d2b 72%);border-color:rgba(225,60,255,.58);box-shadow:0 0 25px rgba(225,60,255,.26)}.btm-node-three{top:272px;left:45px;background:radial-gradient(circle at 35% 35%,#fff 0 8%,var(--btm-green) 10%,#174a22 48%,#081a12 72%);border-color:rgba(56,255,20,.52);box-shadow:0 0 25px rgba(56,255,20,.2)}
.btm-market-panel{width:155px;min-height:154px;margin-left:70px;margin-top:-10px;padding:24px 16px;border-radius:20px;background:linear-gradient(145deg,rgba(13,28,60,.96),rgba(10,12,34,.96));border:1px solid rgba(20,200,255,.42);box-shadow:0 24px 50px rgba(0,0,0,.3),0 0 30px rgba(20,200,255,.14);display:flex;flex-direction:column;justify-content:center;transform:perspective(800px) rotateY(-12deg)}
.btm-market-panel span{font:18px Impact,"Arial Black",sans-serif;color:#fff;letter-spacing:.05em}.btm-market-panel b{display:block;margin-top:12px;font:24px/.95 Impact,"Arial Black",sans-serif;color:var(--btm-cyan);text-shadow:0 0 18px rgba(20,200,255,.24)}

/* Six competition cards keep poster emphasis without becoming cramped */
.btm-events-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.btm-event-card{transform-style:preserve-3d}.btm-event-poster{aspect-ratio:2/3}.btm-event-poster img{transition:transform .35s ease,filter .35s ease}.btm-event-card:hover .btm-event-poster img{transform:scale(1.025);filter:saturate(1.08) contrast(1.03)}

@media(max-width:1180px){.btm-hero{grid-template-columns:205px minmax(0,1fr) 205px}.btm-holo{min-height:430px}.btm-holo:before{inset:20px 0 40px}.btm-holo-core{width:112px;height:112px}.btm-holo-core span{font-size:62px}.btm-market-panel{width:140px;margin-left:58px}}
@media(max-width:1050px){.btm-hero{grid-template-columns:1fr}.btm-hero-flank{display:none}.btm-events-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:780px){.btm-events-grid{grid-template-columns:1fr}.btm-event-poster{aspect-ratio:4/5}}


/* ==== Version 7: coming-soon launch strip + poster-first event grid ==== */
.btm-coming-soon-band{position:relative;z-index:3;border-top:1px solid rgba(225,60,255,.22);border-bottom:1px solid rgba(20,200,255,.26);background:linear-gradient(90deg,rgba(225,60,255,.18),rgba(20,200,255,.12) 46%,rgba(255,197,43,.10));box-shadow:0 16px 44px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.04)}
.btm-coming-soon-inner{min-height:72px;display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center}
.btm-coming-chip{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:12px;background:linear-gradient(90deg,#e13cff,#7c3cff);color:#fff;font-weight:950;letter-spacing:.16em;font-size:12px;box-shadow:0 0 30px rgba(225,60,255,.24),inset 0 1px 0 rgba(255,255,255,.18)}
.btm-coming-copy{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}.btm-coming-copy strong{font:32px Impact,"Arial Black",sans-serif;letter-spacing:.03em;color:#fff;text-shadow:0 0 22px rgba(20,200,255,.15)}.btm-coming-copy span{font-size:11px;font-weight:900;letter-spacing:.15em;color:#ffc52b}
.btm-coming-link{color:#eaf8ff;text-decoration:none;font-size:11px;font-weight:950;letter-spacing:.12em;padding:12px 14px;border:1px solid rgba(20,200,255,.28);border-radius:10px;background:rgba(7,14,30,.48)}.btm-coming-link:hover{border-color:var(--btm-magenta);color:#fff}

.btm-events-grid-featured{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;align-items:start}
.btm-event-card-featured{border-color:rgba(225,60,255,.24);background:linear-gradient(180deg,rgba(13,20,44,.94),rgba(7,11,24,.98));border-radius:26px;overflow:hidden;box-shadow:0 28px 78px rgba(1,4,15,.42),0 0 34px rgba(225,60,255,.08)}
.btm-event-card-featured:hover{transform:translateY(-5px);border-color:rgba(20,200,255,.45);box-shadow:0 34px 90px rgba(1,4,15,.48),0 0 42px rgba(20,200,255,.10)}
.btm-event-poster-featured{aspect-ratio:auto;background:#040815;overflow:hidden}.btm-event-poster-featured img{width:100%;height:auto;display:block;object-fit:contain;background:#040815}
.btm-event-actionbar{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;padding:18px 20px;background:linear-gradient(90deg,rgba(18,14,44,.96),rgba(7,20,37,.96));border-top:1px solid rgba(225,60,255,.22);box-shadow:inset 0 1px 0 rgba(255,255,255,.03)}
.btm-event-actionmeta{min-width:0;display:grid;gap:4px}.btm-event-actionmeta span{font-size:9px;font-weight:900;letter-spacing:.15em;color:var(--btm-magenta)}.btm-event-actionmeta strong{font:25px Impact,"Arial Black",sans-serif;letter-spacing:.02em;color:#fff;line-height:1}.btm-event-actionmeta em{font-style:normal;font-size:10px;font-weight:900;letter-spacing:.11em;color:var(--btm-cyan)}
.btm-event-actionbuttons{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.btm-event-actionbuttons .btm-btn{min-height:44px;padding:0 16px}.btm-event-details-toggle{min-height:44px;padding:0 15px;border-radius:10px;border:1px solid rgba(225,60,255,.35);background:rgba(10,15,34,.78);color:#f6edff;font:900 10px/1 Inter,system-ui,sans-serif;letter-spacing:.1em;cursor:pointer}.btm-event-details-toggle:hover{border-color:var(--btm-cyan)}
.btm-event-details{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:20px;background:linear-gradient(180deg,rgba(8,14,30,.98),rgba(5,9,20,.98));border-top:1px solid rgba(20,200,255,.14)}.btm-event-details[hidden]{display:none}.btm-event-details strong{display:block;font-size:10px;letter-spacing:.13em;color:#ffc52b;margin-bottom:7px}.btm-event-details p{margin:0;color:#cfd8e8;font-size:13px;line-height:1.55}

@media(max-width:900px){.btm-coming-soon-inner{grid-template-columns:1fr;text-align:center;justify-items:center;padding:16px 0}.btm-coming-copy{justify-content:center}.btm-events-grid-featured{grid-template-columns:1fr}.btm-event-actionbar{grid-template-columns:1fr}.btm-event-actionbuttons{justify-content:flex-start}}
@media(max-width:560px){.btm-coming-copy strong{font-size:28px}.btm-event-actionbar{padding:15px}.btm-event-actionbuttons{display:grid;grid-template-columns:1fr 1fr;width:100%}.btm-event-actionbuttons .btm-btn,.btm-event-details-toggle{width:100%}.btm-event-details{grid-template-columns:1fr}.btm-event-actionmeta strong{font-size:22px}}


/* ==== Version 8: premium robot hero flank assets ==== */
.btm-hero{grid-template-columns:280px minmax(0,1fr) 280px;gap:42px;align-items:center}
.btm-hero-copy-center{text-align:center;max-width:760px;margin:0 auto}.btm-hero-buttons,.btm-hero-tertiary,.btm-hero-route{justify-content:center}.btm-hero-meta{margin-left:auto;margin-right:auto}
.btm-hero-flank{display:flex;align-items:center;justify-content:center;min-height:620px;position:relative}
.btm-hero-robot-card{position:relative;width:100%;max-width:280px;min-height:560px;display:flex;align-items:flex-end;justify-content:center;padding:18px 8px 44px;border-radius:30px;background:linear-gradient(180deg,rgba(16,24,55,.88),rgba(5,10,24,.68));border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 90px rgba(0,0,0,.38),inset 0 0 70px rgba(255,255,255,.02);overflow:hidden;isolation:isolate}
.btm-hero-robot-card:before{content:"";position:absolute;inset:16px;border-radius:24px;border:1px solid rgba(255,255,255,.06);pointer-events:none}
.btm-hero-robot-card-left{border-color:rgba(225,60,255,.34);box-shadow:0 30px 90px rgba(0,0,0,.38),0 0 54px rgba(225,60,255,.12),inset 0 0 70px rgba(225,60,255,.04)}
.btm-hero-robot-card-right{border-color:rgba(20,200,255,.34);box-shadow:0 30px 90px rgba(0,0,0,.38),0 0 54px rgba(20,200,255,.14),inset 0 0 70px rgba(20,200,255,.04)}
.btm-hero-robot-glow{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);width:180px;height:34px;border-radius:50%;filter:blur(2px)}
.btm-hero-robot-card-left .btm-hero-robot-glow{background:radial-gradient(ellipse at center,rgba(225,60,255,.42),rgba(124,60,255,.14) 45%,transparent 75%)}
.btm-hero-robot-card-right .btm-hero-robot-glow{background:radial-gradient(ellipse at center,rgba(20,200,255,.42),rgba(56,255,20,.14) 45%,transparent 75%)}
.btm-hero-robot-image{position:relative;z-index:2;display:block;width:min(122%,340px);height:auto;object-fit:contain;filter:drop-shadow(0 22px 38px rgba(0,0,0,.45))}
.btm-hero-robot-card-left .btm-hero-robot-image{transform:translateX(18px)}
.btm-hero-robot-card-right .btm-hero-robot-image{transform:translateX(-18px)}
.btm-hero-robot-tags{position:absolute;left:14px;right:14px;top:18px;z-index:3;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}.btm-hero-robot-tags span{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:0 10px;border-radius:999px;background:rgba(8,14,30,.78);border:1px solid rgba(255,255,255,.08);font:900 9px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;color:#eef8ff;box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btm-hero-robot-card-left .btm-hero-robot-tags span:nth-child(1){border-color:rgba(225,60,255,.34);color:#ffb7ff}.btm-hero-robot-card-left .btm-hero-robot-tags span:nth-child(2){border-color:rgba(20,200,255,.34);color:#9fe8ff}.btm-hero-robot-card-left .btm-hero-robot-tags span:nth-child(3){border-color:rgba(56,255,20,.28);color:#ccffb9}
.btm-hero-robot-card-right .btm-hero-robot-tags span:nth-child(1){border-color:rgba(225,60,255,.34);color:#ffd2ff}.btm-hero-robot-card-right .btm-hero-robot-tags span:nth-child(2){border-color:rgba(20,200,255,.34);color:#9fe8ff}.btm-hero-robot-card-right .btm-hero-robot-tags span:nth-child(3){border-color:rgba(56,255,20,.28);color:#ccffb9}
.btm-hero-robot-caption{position:absolute;left:0;right:0;bottom:10px;text-align:center;font-size:10px;font-weight:900;letter-spacing:.18em;text-transform:uppercase;z-index:3}.btm-hero-robot-card-left .btm-hero-robot-caption{color:var(--btm-magenta);text-shadow:0 0 14px rgba(225,60,255,.28)}.btm-hero-robot-card-right .btm-hero-robot-caption{color:var(--btm-cyan);text-shadow:0 0 14px rgba(20,200,255,.28)}
@media(max-width:1320px){.btm-hero{grid-template-columns:240px minmax(0,1fr) 240px;gap:24px}.btm-hero-robot-card{max-width:240px;min-height:520px}.btm-hero-robot-image{width:min(128%,310px)}}
@media(max-width:1180px){.btm-hero{grid-template-columns:220px minmax(0,1fr) 220px}.btm-hero-robot-card{max-width:220px;min-height:500px}.btm-hero-robot-image{width:min(132%,295px)}}
@media(max-width:1050px){.btm-hero{grid-template-columns:1fr}.btm-hero-flank{display:none}.btm-hero-copy-center{text-align:left;margin:0;max-width:850px}.btm-hero-buttons,.btm-hero-tertiary,.btm-hero-route{justify-content:flex-start}.btm-hero-meta{margin-left:0;margin-right:0}}


/* ==== Version 9: larger, more dramatic hero robots ==== */
.btm-hero{grid-template-columns:330px minmax(0,1fr) 330px;gap:28px;min-height:740px;position:relative}
.btm-hero:before{content:"";position:absolute;left:50%;top:8%;transform:translateX(-50%);width:min(90%,1200px);height:78%;border-radius:42px;background:radial-gradient(circle at 20% 30%,rgba(225,60,255,.16),transparent 28%),radial-gradient(circle at 80% 25%,rgba(20,200,255,.16),transparent 28%),radial-gradient(circle at 50% 70%,rgba(124,60,255,.10),transparent 38%);pointer-events:none;z-index:-1;filter:blur(2px)}
.btm-hero-flank{min-height:660px}
.btm-hero-robot-card{max-width:330px;min-height:620px;padding:10px 0 48px;border-radius:36px;background:linear-gradient(180deg,rgba(14,22,52,.72),rgba(4,8,22,.42));backdrop-filter:blur(10px);overflow:visible}
.btm-hero-robot-card:before{inset:12px;border-radius:30px}
.btm-hero-robot-card:after{content:"";position:absolute;inset:-8px;border-radius:40px;pointer-events:none;z-index:-1}
.btm-hero-robot-card-left:after{background:radial-gradient(circle at 40% 42%,rgba(225,60,255,.22),transparent 46%),radial-gradient(circle at 55% 82%,rgba(124,60,255,.16),transparent 30%)}
.btm-hero-robot-card-right:after{background:radial-gradient(circle at 60% 42%,rgba(20,200,255,.22),transparent 46%),radial-gradient(circle at 45% 82%,rgba(56,255,20,.14),transparent 30%)}
.btm-hero-robot-image{width:min(146%,420px);max-width:none;filter:drop-shadow(0 26px 44px rgba(0,0,0,.48)) drop-shadow(0 0 30px rgba(225,60,255,.14));margin-bottom:-6px}
.btm-hero-robot-card-right .btm-hero-robot-image{filter:drop-shadow(0 26px 44px rgba(0,0,0,.48)) drop-shadow(0 0 30px rgba(20,200,255,.16))}
.btm-hero-robot-card-left .btm-hero-robot-image{transform:translateX(42px) scale(1.06)}
.btm-hero-robot-card-right .btm-hero-robot-image{transform:translateX(-42px) scale(1.06)}
.btm-hero-robot-glow{bottom:28px;width:220px;height:42px;filter:blur(5px)}
.btm-hero-robot-tags{top:16px;left:10px;right:10px}.btm-hero-robot-tags span{min-height:32px;padding:0 12px;font-size:9px;letter-spacing:.17em;background:rgba(5,11,26,.82)}
.btm-hero-copy-center h1{text-shadow:0 0 34px rgba(22,119,255,.18),0 0 60px rgba(225,60,255,.08)}
@media(max-width:1420px){.btm-hero{grid-template-columns:300px minmax(0,1fr) 300px}.btm-hero-robot-card{max-width:300px;min-height:590px}.btm-hero-robot-image{width:min(144%,390px)}}
@media(max-width:1280px){.btm-hero{grid-template-columns:250px minmax(0,1fr) 250px;gap:20px}.btm-hero-flank{min-height:580px}.btm-hero-robot-card{max-width:250px;min-height:540px}.btm-hero-robot-image{width:min(148%,340px)}.btm-hero-robot-card-left .btm-hero-robot-image{transform:translateX(30px) scale(1.04)}.btm-hero-robot-card-right .btm-hero-robot-image{transform:translateX(-30px) scale(1.04)}}
@media(max-width:1050px){.btm-hero:before{display:none}}