/* ASR Quant Challenge · public convergence 2026-09-30 */
:root{--qc-bg:#050506;--qc-panel:#0b0b0e;--qc-panel-2:#101015;--qc-line:#25232b;--qc-line-soft:#19181e;--qc-text:#f7f7f8;--qc-muted:#aaa6b0;--qc-dim:#77727e;--qc-violet:#9b7cf6;--qc-violet-2:#7453db;--qc-green:#78d6a6;--qc-warn:#e9c579;--qc-danger:#ef9b9b;--qc-max:1240px}
html{background:var(--qc-bg);color-scheme:dark;scroll-behavior:smooth}
body.challenge-current-v20260930{margin:0;background:var(--qc-bg);color:var(--qc-text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.challenge-current-v20260930 *{box-sizing:border-box}
body.challenge-current-v20260930 a{color:inherit}
.qc-shell{width:min(var(--qc-max),calc(100% - 48px));margin-inline:auto}

/* Public ASR chrome */
.qc-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);border-bottom:1px solid #e5e5e8;color:#111115;backdrop-filter:blur(18px)}
.qc-header-inner{min-height:72px;display:flex;align-items:center;gap:22px}
.qc-brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}.qc-brand img{width:34px;height:34px;border-radius:9px;background:#050506}.qc-brand-copy{display:grid;gap:1px;line-height:1}.qc-brand-copy strong{font-size:13px;letter-spacing:.15em}.qc-brand-copy span{font-size:8.5px;letter-spacing:.18em;color:#737078}.qc-context{display:inline-flex;align-items:center;gap:7px;padding:6px 9px;border:1px solid #dedbe7;border-radius:999px;color:#5e4a98;font-size:9px;font-weight:800;letter-spacing:.11em;text-transform:uppercase;white-space:nowrap}.qc-context:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--qc-violet)}
.qc-nav{display:flex;align-items:center;gap:2px;margin-left:auto}.qc-nav a{padding:9px 8px;border-radius:8px;text-decoration:none;color:#58565e;font-size:12px;font-weight:650}.qc-nav a:hover{background:#f2f1f4;color:#111115}.qc-header-actions{display:flex;align-items:center;gap:8px}.qc-header-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 13px;border-radius:9px;text-decoration:none;font-size:11px;font-weight:750}.qc-login{border:1px solid #dedde2}.qc-apply{background:#111115;color:#fff!important}

/* Hero */
.qc-main{min-height:72vh;background:radial-gradient(900px 520px at 82% -8%,rgba(116,83,219,.18),transparent 68%),linear-gradient(180deg,#08080b 0,#050506 620px)}
.qc-status-toast{position:fixed;right:22px;bottom:22px;z-index:1200;max-width:min(420px,calc(100vw - 44px));margin:0;padding:10px 13px;border:1px solid #312d3b;border-radius:10px;background:#0d0c11;color:#cbc6d1;box-shadow:0 20px 70px rgba(0,0,0,.45);font-size:11px}.qc-status-toast:empty{display:none}
.qc-hero{position:relative;padding:84px 0 44px;border-bottom:1px solid rgba(255,255,255,.07);overflow:hidden}.qc-hero:after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}.qc-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:52px;align-items:end}.qc-kicker{display:inline-flex;align-items:center;gap:9px;color:#b59eff;font-size:10px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.qc-kicker:before{content:"";width:26px;height:1px;background:currentColor;opacity:.65}.qc-code{display:flex;align-items:center;gap:9px;margin-bottom:18px;color:#a9a1b7;font-size:10px;font-weight:750;letter-spacing:.11em;text-transform:uppercase}.qc-state{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;border:1px solid rgba(155,124,246,.28);border-radius:999px;background:rgba(155,124,246,.09);color:#c8b8f6;font-size:9px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.qc-hero h1{max-width:890px;margin:0 0 18px;font-size:clamp(44px,6.6vw,86px);line-height:.98;letter-spacing:-.055em;font-weight:620}.qc-hero .qc-lead{max-width:760px;margin:0;color:#aaa4b2;font-size:16px;line-height:1.7}.qc-hero-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}.qc-countdown{margin:18px 0 0;color:#c6b8ed;font-size:12px}.qc-hero-card{padding:22px;border:1px solid #322d3d;border-radius:18px;background:rgba(14,13,18,.92);box-shadow:0 28px 90px rgba(0,0,0,.34);backdrop-filter:blur(16px)}.qc-hero-card>span{color:#746f7c;font-size:9px;letter-spacing:.12em;text-transform:uppercase}.qc-hero-card>strong{display:block;margin:7px 0 18px;font-size:19px;font-weight:650;text-transform:capitalize}.qc-hero-card dl{margin:0}.qc-hero-card dl div{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-top:1px solid #24212b}.qc-hero-card dt{color:#817b89;font-size:10px}.qc-hero-card dd{margin:0;color:#ddd8e3;font-size:11px;font-weight:650;text-align:right;text-transform:capitalize}

.qc-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:0 15px;border:1px solid #34303d;border-radius:10px;background:#0e0d12;color:#ddd8e3!important;text-decoration:none;font-size:11px;font-weight:750;cursor:pointer;transition:.16s ease}.qc-button:hover{transform:translateY(-1px);border-color:#5b4b71}.qc-button-primary{border-color:transparent;background:linear-gradient(135deg,#a98dfb,#8060dc);color:#09080c!important;box-shadow:0 12px 34px rgba(116,83,219,.18)}.qc-button-quiet{background:transparent}.qc-button:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* Process + sections */
.qc-process{padding:24px 0;border-bottom:1px solid var(--qc-line-soft)}.qc-process-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--qc-line);border-radius:16px;overflow:hidden;background:#09090c}.qc-step{padding:18px 19px;border-right:1px solid var(--qc-line)}.qc-step:last-child{border-right:0}.qc-step span{display:block;margin-bottom:9px;color:#8e78cf;font-size:9px;font-weight:800;letter-spacing:.11em}.qc-step strong{display:block;margin-bottom:5px;font-size:13px}.qc-step p{margin:0;color:#77727e;font-size:10.5px;line-height:1.5}
.qc-section{padding:54px 0}.qc-section+.qc-section{border-top:1px solid var(--qc-line-soft)}.qc-section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:22px}.qc-section-head h2{margin:7px 0 0;font-size:clamp(27px,4vw,42px);font-weight:610;letter-spacing:-.04em}.qc-section-head p{max-width:640px;margin:0;color:#8f8997;font-size:12px;line-height:1.65}.qc-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.qc-fact{padding:17px;border:1px solid var(--qc-line);border-radius:14px;background:#0a090d}.qc-fact span{display:block;margin-bottom:7px;color:#746f7b;font-size:9px;letter-spacing:.1em;text-transform:uppercase}.qc-fact strong{display:block;color:#f2eff5;font-size:13px;line-height:1.5;font-weight:630}.qc-info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:12px}.qc-info-card{padding:22px;border:1px solid var(--qc-line);border-radius:16px;background:linear-gradient(145deg,#0d0c11,#09090c)}.qc-info-card h3{margin:9px 0 10px;font-size:17px}.qc-info-card p{margin:0;color:#928c9a;font-size:12px;line-height:1.68}.qc-info-card .qc-kicker{font-size:9px}.qc-results{margin-top:12px;padding:22px;border:1px solid rgba(155,124,246,.25);border-radius:16px;background:rgba(155,124,246,.045)}.qc-results-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:14px}.qc-results-head h3{margin:7px 0 0;font-size:22px}.qc-ranking{display:grid;gap:7px}.qc-rank-row{display:grid;grid-template-columns:48px minmax(0,1fr) minmax(120px,.35fr) 90px;align-items:center;gap:12px;padding:11px 13px;border:1px solid #2a2631;border-radius:10px;background:#0a090d}.qc-rank-row b{color:#b59eff}.qc-rank-row strong{font-size:12px}.qc-rank-row span{color:#817b89;font-size:10px}.qc-rank-row em{font-style:normal;text-align:right;font-size:11px;color:#d9d2e2}

/* Access */
.qc-entry-band{background:#08080a}.qc-entry-ready{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px;border:1px solid rgba(155,124,246,.25);border-radius:16px;background:linear-gradient(135deg,rgba(155,124,246,.07),rgba(10,9,14,.88))}.qc-entry-ready h2{margin:7px 0;font-size:25px;letter-spacing:-.03em}.qc-entry-ready p{max-width:720px;margin:0;color:#938c9b;font-size:12px;line-height:1.65}.qc-entry-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.qc-access-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.qc-form,.qc-access-note{padding:24px;border:1px solid var(--qc-line);border-radius:16px;background:#0b0a0e}.qc-form h3,.qc-access-note h3{margin:8px 0 18px;font-size:19px}.qc-form label{display:grid;gap:7px;margin-top:11px;color:#aaa4b2;font-size:10px;font-weight:650}.qc-form input{width:100%;min-height:44px;padding:10px 12px;border:1px solid #34303c;border-radius:10px;background:#07070a;color:#f5f2f7;font:inherit;outline:none}.qc-form input:focus{border-color:#705bb0;box-shadow:0 0 0 3px rgba(155,124,246,.09)}.qc-check{display:flex!important;grid-template-columns:16px 1fr!important;align-items:start;gap:9px!important;line-height:1.5}.qc-check input{width:15px!important;min-height:15px!important;margin:2px 0 0;padding:0!important;accent-color:var(--qc-violet)}.qc-form .qc-button{margin-top:14px}.qc-local-status{margin:10px 0 0;color:#928c9a;font-size:10px}.qc-local-status.error{color:var(--qc-danger)}

/* Archive */
.qc-archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}.qc-cycle{padding:19px;border:1px solid var(--qc-line);border-radius:15px;background:#0a090d}.qc-cycle>span{color:#a18adc;font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.qc-cycle h3{margin:8px 0 9px;font-size:15px}.qc-cycle p{margin:0;color:#85808c;font-size:11px;line-height:1.6}.qc-cycle-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid #211f26;color:#79737f;font-size:9px}.qc-cycle-foot a{color:#b8a5ef;text-decoration:none}.qc-empty{padding:28px;border:1px dashed #302c37;border-radius:14px;color:#847e8b;text-align:center;font-size:12px}

/* Footer */
.qc-footer{border-top:1px solid #1d1b22;background:#070708}.qc-footer-grid{display:grid;grid-template-columns:1.45fr repeat(3,1fr);gap:40px;padding:42px 0 32px}.qc-footer-brand p{max-width:360px;margin:14px 0 0;color:#77727d;font-size:11px;line-height:1.65}.qc-footer-col{display:grid;align-content:start;gap:9px}.qc-footer-col b{margin-bottom:4px;color:#d7d2db;font-size:9px;letter-spacing:.12em;text-transform:uppercase}.qc-footer-col a{color:#827c89;text-decoration:none;font-size:11px}.qc-footer-col a:hover{color:#fff}.qc-footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:17px 0 23px;border-top:1px solid #17151b;color:#66616b;font-size:9.5px}

@media(max-width:1080px){.qc-context{display:none}.qc-nav{gap:0}.qc-nav a{padding:8px 6px;font-size:11px}.qc-hero-grid{grid-template-columns:1fr;gap:28px}.qc-hero-card{max-width:620px}.qc-footer-grid{grid-template-columns:1.3fr 1fr 1fr}.qc-footer-col:last-child{grid-column:2/4}}
@media(max-width:820px){.qc-shell{width:min(100% - 28px,var(--qc-max))}.qc-header-inner{min-height:64px;flex-wrap:wrap;padding:10px 0}.qc-brand-copy span{display:none}.qc-nav{order:3;width:100%;margin:0;overflow-x:auto;padding-bottom:2px}.qc-nav a{white-space:nowrap}.qc-header-actions{margin-left:auto}.qc-hero{padding:58px 0 34px}.qc-hero h1{font-size:clamp(40px,12vw,64px)}.qc-process-grid,.qc-facts,.qc-info-grid,.qc-access-grid,.qc-archive-grid{grid-template-columns:1fr 1fr}.qc-step:nth-child(2){border-right:0}.qc-step:nth-child(-n+2){border-bottom:1px solid var(--qc-line)}.qc-section-head{display:block}.qc-section-head p{margin-top:10px}.qc-footer-grid{grid-template-columns:1fr 1fr}.qc-footer-brand{grid-column:1/-1}.qc-footer-col:last-child{grid-column:auto}.qc-rank-row{grid-template-columns:42px 1fr 72px}.qc-rank-row span{display:none}}
@media(max-width:560px){.qc-shell{width:calc(100% - 24px)}.qc-header-actions .qc-login{display:none}.qc-header-actions a{min-height:34px;padding:0 10px}.qc-process-grid,.qc-facts,.qc-info-grid,.qc-access-grid,.qc-archive-grid{grid-template-columns:1fr}.qc-step{border-right:0;border-bottom:1px solid var(--qc-line)}.qc-step:last-child{border-bottom:0}.qc-hero-card{padding:18px}.qc-entry-ready{display:block}.qc-entry-actions{justify-content:flex-start;margin-top:16px}.qc-footer-grid{grid-template-columns:1fr;gap:26px}.qc-footer-brand,.qc-footer-col:last-child{grid-column:auto}.qc-footer-bottom{display:block}.qc-footer-bottom span{display:block;margin-top:5px}.qc-rank-row{grid-template-columns:38px 1fr 64px}.qc-hero .qc-lead{font-size:14px}.qc-section{padding:42px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.qc-button{transition:none}.qc-button:hover{transform:none}}