@font-face{font-family:Inter;src:url('assets/fonts/inter-latin-variable-400-800.woff2') format('woff2');font-weight:400 800;font-display:swap}
.student-auth{color-scheme:dark;width:min(440px,calc(100% - 32px));max-height:calc(100dvh - 32px);margin:auto;padding:0;overflow:auto;border:1px solid #303235;border-radius:18px;background:#111315;color:#f6f5f2;box-shadow:0 32px 110px #0009;font-family:Inter,Arial,sans-serif;scrollbar-width:thin;scrollbar-color:#3a3d40 transparent}
.student-auth::backdrop{background:#060708d9;backdrop-filter:blur(5px)}.student-auth *{box-sizing:border-box}.student-auth button,.student-auth input{font:inherit}.auth-form-pane{position:relative;padding:34px}
.auth-wordmark{display:inline-flex;align-items:baseline;gap:8px;font-family:Inter,Arial,sans-serif;color:#f7f7f3;font-weight:750;font-size:21px;letter-spacing:-.9px;line-height:1}.auth-wordmark b{font-size:31px;color:#ff782e;letter-spacing:-2px}.auth-dot{color:#ff782e}.auth-modal-brand{margin-bottom:33px}
.auth-kicker{display:block;color:#a5a8ac;font-size:9px;font-weight:600;letter-spacing:.18em;margin:0 0 12px}.student-auth h1,.student-auth h2{margin:0!important;color:#fafaf7!important;font-family:Inter,Arial,sans-serif!important;font-size:32px!important;font-weight:650!important;line-height:1.15!important;letter-spacing:-1.2px!important}.auth-muted{margin:11px 0 0;color:#a4a7ab;font-size:12px;line-height:1.7}
.auth-close{position:absolute;right:16px;top:16px;display:grid;place-items:center;width:30px;height:30px;padding:0;border:1px solid #34383c;border-radius:50%;color:#a9aeb3;background:transparent;cursor:pointer;font-size:21px!important}.auth-close:hover{color:white;border-color:#797f85}
.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin:25px 0 23px;padding:4px;border:1px solid #2b2f33;border-radius:10px;background:#0b0d0f}.auth-tabs button{padding:10px 6px;border:1px solid transparent;border-radius:6px;background:transparent;color:#999fa5;font-size:12px;cursor:pointer}.auth-tabs button[aria-selected=true]{background:#25292d;border-color:#353b40;color:#f8f8f5;font-weight:600}
.auth-field{display:block;margin:18px 0;color:#e0e2e3;font-size:11px;font-weight:550}.auth-field input{display:block;width:100%;height:49px;margin-top:9px;padding:12px 14px;border:1px solid #353b40;border-radius:8px;background:#0c0e10;color:#fff;font-size:14px!important;font-weight:400;transition:border-color .15s,box-shadow .15s}.auth-field input::placeholder{color:#737a82}.auth-field input:hover{border-color:#5c6269}.auth-field input:focus{outline:none;border-color:#ff9b62;box-shadow:0 0 0 3px #ff8a4412}
.auth-label-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.auth-text-button{border:0;padding:0;background:transparent;color:#afb5bb;font-size:10px!important;font-weight:450;cursor:pointer}.auth-text-button:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}.auth-password-wrap{display:block;position:relative}.auth-password-wrap input{padding-right:47px}.auth-show-password{position:absolute;right:7px;top:7px;display:grid;place-items:center;width:35px;height:35px;padding:0;border:0;border-radius:5px;background:transparent;color:#9098a0;cursor:pointer}.auth-show-password:hover{color:white}
.auth-primary{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;min-height:49px;margin-top:25px;padding:13px 16px;border:1px solid #f4f4ef;border-radius:8px;background:#f4f4ef;color:#141719;font-size:13px!important;font-weight:650!important;cursor:pointer;transition:background .15s,transform .15s}.auth-primary:hover{background:white;transform:translateY(-1px)}.auth-primary:disabled{cursor:wait;transform:none;background:#d6d8d8}.auth-button-arrow{font-size:17px}.auth-spinner{display:none;width:13px;height:13px;border:1.5px solid #15191c45;border-top-color:#15191c;border-radius:50%;animation:auth-spin .7s linear infinite}form[aria-busy=true] .auth-spinner{display:block}form[aria-busy=true] .auth-button-arrow{display:none}
.auth-message{margin:15px 0 0;padding:11px 12px;border:1px solid #5a3a2e;border-radius:7px;background:#241a16;color:#ffc5a5;font-size:11px;line-height:1.7}.auth-message:empty{display:none}.auth-message[data-kind=success]{border-color:#29453b;background:#12231d;color:#b6dccb}.auth-divider{display:flex;align-items:center;gap:14px;margin:23px 0 19px;color:#717b84;font-size:10px}.auth-divider:before,.auth-divider:after{content:'';flex:1;height:1px;background:#292e33}.auth-guest{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;min-height:40px;padding:8px;border:0;background:transparent;color:#c4c9ce;font-size:12px!important;cursor:pointer}.auth-guest:hover{color:#fff}.auth-privacy{margin:10px 0 0;text-align:center;color:#848e97;font-size:10px;line-height:1.6}.auth-back{display:block;margin:22px auto 0;font-size:12px!important}
.student-auth button:focus-visible,.auth-page a:focus-visible{outline:2px solid #ff9b62;outline-offset:4px}.student-auth button:disabled{cursor:wait}.auth-tabs button:disabled,.auth-text-button:disabled{opacity:.6}
html:has(dialog.student-auth[open]),body:has(dialog.student-auth[open]){overflow:hidden;overscroll-behavior:none}
/* The dedicated entry renders independently of the practice application. */
.auth-page{margin:0;min-height:100dvh;background:#090b0d;color:#f5f5f0;font-family:Inter,Arial,sans-serif;-webkit-font-smoothing:antialiased}.auth-page *{box-sizing:border-box}.auth-page a{color:inherit;text-decoration:none}.auth-page-header{max-width:1220px;margin:auto;padding:32px 44px;display:flex;align-items:center;justify-content:space-between;gap:24px}.auth-return{display:flex;align-items:center;gap:10px;color:#a0a7ae!important;font-size:11px}.auth-return:hover{color:#fff!important}.auth-shell{display:grid;grid-template-columns:1fr 400px;gap:100px;align-items:center;max-width:1030px;min-height:calc(100dvh - 164px);margin:auto;padding:40px 34px 56px}.auth-editorial{max-width:420px;padding-bottom:10px}.auth-editorial>.auth-kicker{color:#e4986b;letter-spacing:.2em;font-size:9px;margin-bottom:26px}.auth-editorial h2{font-size:clamp(40px,4.4vw,58px);font-weight:600;line-height:1.07;letter-spacing:-2.5px;margin:0;color:#f1f1ed}.auth-editorial h2 em{font-style:normal;color:#8e979f}.auth-editorial>p{max-width:315px;color:#99a3ac;font-size:13px;line-height:1.9;margin:26px 0 35px}.auth-subjects{display:flex;gap:0;border-top:1px solid #30363b;padding-top:21px;max-width:300px}.auth-subjects span{font-size:10px;letter-spacing:.16em;color:#c4cbd0}.auth-subjects span+span{margin-left:22px;padding-left:22px;border-left:1px solid #343b41}.auth-editorial small{display:block;margin-top:28px;color:#707d88;font-size:9px;letter-spacing:.06em}.auth-page .student-auth{width:100%;max-height:none;overflow:visible;box-shadow:0 24px 90px #0003;border-color:#2a3035;border-radius:15px}.auth-page .auth-form-pane{padding:34px 30px 28px}.auth-page-footer{max-width:1220px;margin:0 auto;padding:0 44px 24px;display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#76828d;letter-spacing:.03em}.auth-noscript{padding:24px;color:#bec5cb}
@keyframes auth-spin{to{transform:rotate(360deg)}}
@media(max-width:900px){.auth-page-header{padding:26px 28px}.auth-editorial{display:none}.auth-shell{display:block;max-width:450px;min-height:calc(100dvh - 145px);padding:25px 20px 42px}.auth-page-footer{padding:0 28px 22px}.auth-page .student-auth{border-color:#30373d}.auth-page .auth-form-pane{padding:32px}}
@media(max-width:480px){.auth-page-header{padding:25px 24px}.auth-wordmark{font-size:18px}.auth-wordmark b{font-size:27px}.auth-return{font-size:10px}.auth-shell{padding:19px 16px 30px}.auth-page .auth-form-pane,.auth-form-pane{padding:28px 24px}.student-auth h1,.student-auth h2{font-size:29px!important}.auth-muted{font-size:12px}.auth-page-footer{padding-inline:24px;font-size:8px}.auth-page-footer span:last-child{display:none}.auth-field input{font-size:16px!important}.auth-tabs{margin-top:24px}.auth-page .student-auth{border-radius:13px}.student-auth{width:calc(100% - 24px);max-height:calc(100dvh - 24px)}.auth-modal-brand{margin-bottom:27px}}
@media(max-height:900px){.auth-page-header{padding-block:20px}.auth-shell{padding-top:12px;padding-bottom:25px;min-height:calc(100dvh - 128px)}.auth-form-pane,.auth-page .auth-form-pane{padding-top:26px;padding-bottom:24px}.auth-modal-brand{margin-bottom:22px}.auth-tabs{margin-top:19px;margin-bottom:17px}.auth-field{margin-block:14px}.auth-field input{height:46px}.auth-primary{margin-top:20px;min-height:46px}.auth-divider{margin-block:17px 9px}.auth-guest{min-height:32px}.auth-privacy{margin-top:7px;font-size:9px}}
@media(prefers-reduced-motion:reduce){.student-auth *{transition:none!important;animation:none!important}.student-auth::backdrop{backdrop-filter:none}}


/* 99 Percentiler premium silver-black login layer — no changes to auth-core */
dialog.student-auth:not([open]){display:none}
.student-auth,.auth-page .student-auth{width:min(1010px,calc(100% - 28px));min-height:650px;display:grid;grid-template-columns:51% 49%;max-height:calc(100dvh - 28px);overflow:auto;border:1px solid #71778085;border-radius:17px;background:#111317;box-shadow:0 40px 135px #000b;color:#f7f6f3}
.student-auth::backdrop{background:#020405de;backdrop-filter:blur(9px)}
.auth-brand-pane{position:relative;display:flex;flex-direction:column;min-height:650px;padding:49px 51px 36px;overflow:hidden;border-right:1px solid #ffffff20;background:radial-gradient(ellipse 95% 55% at 112% 75%,#272a3170,transparent 80%),linear-gradient(140deg,#0c0f12 5%,#12151a 70%,#0b0d11)}
.auth-brand-pane:after{content:"";position:absolute;inset:-15% -43% 0 25%;pointer-events:none;opacity:.3;background:repeating-radial-gradient(ellipse at 98% 65%,transparent 0 31px,#b5bec519 32px,#b5bec519 33px,transparent 34px 59px);transform:rotate(-19deg)}
.auth-brand-pane:before{content:"";position:absolute;right:-45%;bottom:22%;width:86%;height:1px;box-shadow:0 0 30px 2px #ff803d40;transform:rotate(-39deg);background:linear-gradient(90deg,transparent,#ff7c3a6e,transparent)}
.auth-brand-mark{position:relative;z-index:2}.auth-brand-mark .auth-wordmark{font-size:22px;font-weight:700;letter-spacing:-.85px}.auth-brand-mark .auth-wordmark b{font-size:37px;letter-spacing:-2.2px;color:#ff782e}
.auth-etched-99{position:absolute;right:-18px;top:82px;font-size:245px;line-height:1;letter-spacing:-29px;color:transparent;-webkit-text-stroke:1px #c8d0d71b;pointer-events:none;user-select:none}
.auth-brand-content{position:relative;z-index:2;margin-top:114px}
.auth-brand-overline{color:#a8afb8;font-size:10px;font-weight:650;letter-spacing:.2em}
.student-auth .auth-brand-content h2,.auth-page .student-auth .auth-brand-content h2{font-size:clamp(35px,3.7vw,49px)!important;font-weight:610!important;letter-spacing:-2.4px!important;line-height:1.13!important;margin:25px 0 14px!important}
.auth-brand-content h2 em{font-style:normal;color:#ff7f39}
.auth-brand-content>p{max-width:340px;color:#a9b0b7;font-size:13px;line-height:1.9;margin:0}
.auth-feature-list{display:grid;gap:24px;margin-top:40px}
.auth-feature{display:flex;align-items:center;gap:17px}
.auth-feature-icon{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;border-radius:10px;border:1px solid #65717c78;color:#ff8b4d;font-size:24px;background:#10151a}
.auth-feature strong{display:block;font-size:13px;color:#f5f4f2;font-weight:600}
.auth-feature small{display:block;color:#aab0b7;font-size:11px;line-height:1.6;margin-top:4px;max-width:275px}
.auth-form-pane,.auth-page .auth-form-pane{display:flex;flex-direction:column;justify-content:center;position:relative;min-width:0;padding:60px 54px 42px;background:linear-gradient(145deg,#1b1e22,#111317 85%)}
.auth-form-main{width:100%}
.student-auth h1,.student-auth h2,.auth-page .student-auth h1,.auth-page .student-auth h2{font-size:38px!important;font-weight:620!important;letter-spacing:-1.7px!important;line-height:1.18!important}
.auth-kicker{font-size:10px;font-weight:650;letter-spacing:.2em;color:#b1b5bd;margin-bottom:15px}.auth-kicker:before{content:"";display:inline-block;vertical-align:middle;width:16px;height:1px;background:#ff8a45;margin-right:10px}
.auth-muted{font-size:13px;color:#b1b4ba;margin:12px 0 22px;line-height:1.7}
.auth-close{top:21px;right:23px;border:0;background:transparent;font-size:26px!important;color:#b1b8bf}
.auth-tabs{margin:19px 0 13px;background:#0e1013;border-color:#41464b;border-radius:9px}
.auth-tabs button[aria-selected=true]{background:#292c31;border-color:#55595d}
.auth-field{font-size:12px;margin:15px 0}
.auth-field input,.auth-phone-field{height:50px;border-color:#646b7377;border-radius:8px;background:#0d1014}
.auth-field input:focus{border-color:#fb944f;box-shadow:0 0 0 3px #e479341c}
.auth-primary{min-height:52px;background:linear-gradient(115deg,#ff9c54,#ff782f);color:#100f0c;border-color:#ff8b40;margin-top:20px;font-weight:700!important;border-radius:9px}
.auth-primary:hover{background:linear-gradient(115deg,#ffb06e,#ff8a48)}
.auth-primary:disabled{background:#ac8b78;color:#29221b}
.auth-divider{margin:20px 0 16px;color:#9298a1;letter-spacing:.15em;font-size:9px}
.auth-google{width:100%;display:flex;align-items:center;justify-content:center;gap:11px;height:50px;color:#f4f4f4;border:1px solid #6b737d88;border-radius:8px;background:#ffffff05;font-size:13px;cursor:pointer;transition:border-color .15s,background .15s}
.auth-google:hover{background:#ffffff11;border-color:#9ca6b0}
.auth-google-mark{font-weight:800;font-size:18px;background:conic-gradient(#4285f4 0 90deg,#34a853 90deg 180deg,#fbbc05 180deg 260deg,#ea4335 260deg);-webkit-background-clip:text;background-clip:text;color:transparent}
.auth-mobile-switch{display:block;margin:13px auto 0;padding:7px 4px;border:0;background:transparent;color:#ff9b65;font-size:12px!important;cursor:pointer}
.auth-mobile-switch:hover{color:#ffbe8e}
.auth-privacy{margin-top:10px;color:#9197a0;font-size:10px}
.auth-privacy a{color:#b3b8bd;text-decoration:underline}
.auth-guest{color:#949ca4;font-size:11px!important;min-height:29px}
.auth-phone-field{display:flex;align-items:center;overflow:hidden;border:1px solid #646b7377;margin-top:9px}
.auth-phone-field span{padding:0 15px;border-right:1px solid #646b7377;color:#f2f2f2;font-size:13px}
.auth-phone-field input{flex:1;width:100%;min-width:0;border:0!important;margin:0;background:transparent;box-shadow:none!important}
.auth-phone-note{color:#9299a1;font-size:10px;line-height:1.6}
.auth-page{background:radial-gradient(ellipse 65% 50% at 35% 15%,#22283359,transparent 75%),#07090b}
.auth-page .auth-page-header,.auth-page .auth-editorial,.auth-page .auth-page-footer{display:none}
.auth-page .auth-shell{display:block;max-width:1140px;min-height:100dvh;padding:48px 20px;margin:auto}
.auth-page #auth-root{width:100%;display:flex;align-items:center;justify-content:center}
.auth-page .student-auth{margin:auto;max-height:none;min-height:650px;overflow:hidden}
.auth-page .student-auth .auth-form-pane{padding:60px 54px 42px}
@media(max-height:760px) and (min-width:801px){.student-auth,.auth-page .student-auth{min-height:570px}.auth-brand-pane{min-height:570px;padding-top:31px}.auth-brand-content{margin-top:62px}.auth-feature-list{margin-top:25px;gap:14px}.auth-form-pane,.auth-page .student-auth .auth-form-pane{padding-top:38px;padding-bottom:26px}.student-auth .auth-brand-content h2{font-size:39px!important}}
@media(max-width:800px){
 .student-auth,.auth-page .student-auth{display:flex;flex-direction:column;max-width:470px;min-height:0;max-height:calc(100dvh - 18px);border-radius:14px;overflow:auto}
 .auth-brand-pane{min-height:0;padding:24px 27px 23px;border-right:0;border-bottom:1px solid #ffffff18}
 .auth-brand-pane:after{opacity:.2}.auth-brand-content{margin-top:24px}
 .student-auth .auth-brand-content h2,.auth-page .student-auth .auth-brand-content h2{font-size:27px!important;letter-spacing:-1px!important;margin:12px 0 0!important}
 .auth-brand-content>p,.auth-feature-list{display:none}.auth-etched-99{font-size:125px;right:14px;top:10px;letter-spacing:-13px}
 .auth-form-pane,.auth-page .student-auth .auth-form-pane{padding:31px 29px 28px;display:block}
 .student-auth h1,.student-auth h2,.auth-page .student-auth h1,.auth-page .student-auth h2{font-size:31px!important}
 .auth-close{top:-143px;z-index:5;right:12px}
 .auth-page .auth-shell{min-height:100dvh;padding:18px 12px}
 .auth-page .student-auth{max-height:none;overflow:visible}
}
@media(max-width:420px){
 .auth-brand-pane{padding:20px 22px}
 .auth-brand-mark .auth-wordmark{font-size:19px}.auth-brand-mark .auth-wordmark b{font-size:32px}
 .auth-brand-content{margin-top:19px}.student-auth .auth-brand-content h2{font-size:25px!important}
 .auth-form-pane,.auth-page .student-auth .auth-form-pane{padding:24px 23px}
 .auth-muted{font-size:12px;margin-bottom:16px}.auth-tabs{margin:15px 0 11px}
 .auth-field{margin:12px 0}.auth-divider{margin:16px 0 12px}.auth-close{top:-125px}
}
@media(prefers-reduced-motion:reduce){.auth-brand-pane:after,.auth-brand-pane:before{animation:none}}