:root{color-scheme:dark;--navy:#0b172d;--navy-deep:#071122;--blue:#2855df;--blue-light:#a9c2ff;--sage:#a9c9b1;--sage-soft:#e6efe6;--gold:#e5d49b;--gold-soft:#f1e8c8;--text:#f5f7fb;--muted:#aebbd1;--line:#2a3b59;--field:#101f39;--font:Arial,Helvetica,sans-serif}
*{box-sizing:border-box}
html{min-width:320px;background:#060c18}
body{min-height:100vh;margin:0;padding:32px;display:grid;place-items:center;background:radial-gradient(ellipse at 15% 15%,#142747 0,transparent 37%),#060c18;color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5}
button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--blue-light);outline-offset:3px}
.auth-shell{width:min(1180px,100%);min-height:730px;display:grid;grid-template-columns:minmax(340px,.86fr) minmax(520px,1.14fr);overflow:hidden;border:1px solid #ffffff14;border-radius:26px;background:var(--navy-deep);box-shadow:0 28px 90px #0008}
.auth-aside{position:relative;isolation:isolate;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;padding:36px 38px;background:radial-gradient(ellipse at 12% 82%,#8eb89b22 0,transparent 34%),linear-gradient(145deg,#10223d 2%,#173b62 58%,#355d68 125%)}
.auth-aside:before,.auth-aside:after{content:"";position:absolute;z-index:-1;border:1px solid #ffffff1d;border-radius:50%;pointer-events:none}
.auth-aside:before{width:410px;height:410px;right:-210px;top:20px;box-shadow:0 0 0 42px #ffffff08,0 0 0 85px #ffffff05}
.auth-aside:after{width:280px;height:280px;left:-190px;bottom:-130px;background:#ffffff09}
.auth-brand{display:inline-flex;align-items:center;gap:11px;width:max-content;font-size:20px;font-weight:700;letter-spacing:.01em}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;border:1px solid #ffffff99;border-radius:11px;color:#fff;font-size:17px;font-weight:700}
.auth-brand small{display:block;font-size:10px;font-weight:500;letter-spacing:.19em;color:#d8e4ff}
.event-meta{max-width:290px;margin:8px 0 0;color:#d1def4;font-size:12px;line-height:1.5}
.aside-copy{margin:56px 0 36px}
.aside-kicker{margin:0 0 14px;color:#e6d79e;font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}
.aside-copy h1{max-width:390px;margin:0 0 14px;font-size:clamp(34px,3.5vw,46px);line-height:1.02;letter-spacing:-.055em;font-weight:600}
.aside-copy>p:last-child{max-width:350px;margin:0;color:#d2ddef;font-size:14px;line-height:1.65}
.progress-title{margin:0 0 13px;color:#dbe6f7;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.progress-list{display:grid;gap:9px;margin:0;padding:0;list-style:none}
.progress-step{width:100%;min-height:62px;display:grid;grid-template-columns:34px 1fr;align-items:center;gap:12px;padding:10px 13px;text-align:left;color:#dbe5f5;border:1px solid #ffffff20;border-radius:13px;background:#ffffff0c;transition:background .18s,border-color .18s,transform .18s}
.progress-step:not(:disabled):hover{transform:translateX(3px);background:#ffffff15}
.progress-step:disabled{cursor:default;opacity:.62}
.progress-num{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#ffffff17;color:#f5f8ff;font-size:12px;font-weight:700}
.progress-step strong{display:block;font-size:13px;font-weight:600;line-height:1.3}
.progress-step small{display:block;margin-top:3px;color:#c0d0e8;font-size:11px;line-height:1.35}
.auth-shell[data-mode="login"] .progress-title{opacity:.48}.auth-shell[data-mode="login"] .progress-step{opacity:.56;background:#ffffff0c!important;border-color:#ffffff20!important;color:#dbe5f5!important}.auth-shell[data-mode="login"] .progress-step .progress-num{background:#ffffff17;color:#f5f8ff}
.progress-step[aria-current="step"]{border-color:#ffffffaa;background:#eef4ee;color:#101a2a;box-shadow:0 8px 25px #05142b2e}
.progress-step[aria-current="step"] .progress-num{background:var(--gold);color:#1b2230}
.progress-step[aria-current="step"] small{color:#58657a}
.progress-step.is-complete .progress-num{background:#c8ddcd;color:#0b172d}
.aside-foot{margin:22px 0 0;color:#c3d0e4;font-size:11px}
.auth-shell[data-mode="login"] .progress-wrap{display:none}
.auth-shell[data-mode="login"] .auth-aside{justify-content:flex-start}
.auth-shell[data-mode="login"] .aside-copy{margin:auto 0}

.auth-main{min-width:0;display:flex;flex-direction:column;padding:30px clamp(28px,5vw,64px) 26px;background:linear-gradient(160deg,#0b172d,#081225 72%)}
.auth-main-header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:34px}
.back-home{display:inline-flex;align-items:center;gap:8px;color:#c4cede;font-size:12px;white-space:nowrap}
.back-home:hover{color:#fff}
.mode-tabs{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:#ffffff06}
.mode-tab{min-height:36px;padding:7px 14px;border:0;border-radius:999px;background:transparent;color:#aebbd1;font-size:12px;font-weight:600;white-space:nowrap}
.mode-tab[aria-selected="true"]{background:#eef3ff;color:#0b172d;box-shadow:0 2px 7px #0003}
.auth-content{width:min(100%,540px);margin:0 auto}
.auth-heading{margin:0 0 24px}
.auth-heading .eyebrow{margin:0 0 7px;color:#e6d79e;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.auth-heading h2{margin:0 0 8px;font-size:30px;line-height:1.12;letter-spacing:-.04em;font-weight:600;color:#f8faff}
.auth-heading p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px 13px}
.form-field{min-width:0;display:grid;gap:6px}
.form-field.full{grid-column:1/-1}
.form-field label,.form-label{color:#e8edf6;font-size:12px;font-weight:600}
.form-field input{width:100%;height:45px;padding:0 13px;border:1px solid #293b57;border-radius:10px;background:var(--field);color:#f5f7fb;font-size:13px;transition:border-color .16s,box-shadow .16s}
.form-field input::placeholder{color:#8190a8}
.form-field select{width:100%;height:45px;padding:0 38px 0 13px;border:1px solid #293b57;border-radius:10px;appearance:none;background-color:var(--field);background-image:linear-gradient(45deg,transparent 50%,#e5d49b 50%),linear-gradient(135deg,#e5d49b 50%,transparent 50%);background-position:calc(100% - 17px) 18px,calc(100% - 12px) 18px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;color:#f5f7fb;font:inherit;font-size:13px;cursor:pointer;transition:border-color .16s,box-shadow .16s}
.form-field select:focus{border-color:var(--sage);box-shadow:0 0 0 3px #a9c9b12b;outline:none}
.form-field select:invalid{color:#8190a8}
.form-field select option,.form-field select optgroup{background:#101f39;color:#f5f7fb}
.form-field select optgroup{color:#c8ddcd}

.form-field input:focus{border-color:#a9c9b1;box-shadow:0 0 0 3px #a9c9b12b;outline:none}
.field-hint{color:#8f9db3;font-size:11px;line-height:1.4}
.password-wrap{position:relative}
.password-wrap input{padding-right:48px}
.show-password{position:absolute;right:6px;top:50%;transform:translateY(-50%);min-width:36px;min-height:34px;padding:5px;border:0;border-radius:8px;background:transparent;color:#aebbd1;font-size:11px}
.show-password:hover{background:#ffffff12;color:#fff}
.consent{grid-column:1/-1;display:flex;align-items:flex-start;gap:10px;margin:1px 0;color:#b6c2d6;font-size:11px;line-height:1.5}
.consent input{width:16px;height:16px;flex:0 0 16px;margin:1px 0 0;accent-color:var(--sage)}
.primary-action{width:100%;min-height:48px;display:flex;align-items:center;justify-content:center;gap:10px;margin-top:4px;padding:12px 18px;border:0;border-radius:11px;background:var(--blue);color:#fff;font-size:13px;font-weight:700;box-shadow:0 8px 20px #2855df3b;transition:filter .16s,transform .16s}
.primary-action:hover{filter:brightness(1.1);transform:translateY(-1px)}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:19px}
.text-button{padding:4px 0;border:0;background:transparent;color:#c3d0e4;font-size:12px;text-align:left;text-decoration:underline;text-decoration-color:#687b9d;text-underline-offset:3px}
.text-button:hover{color:#fff}
.stage-actions{display:flex;gap:12px;margin-top:22px}
.stage-actions .primary-action{margin-top:0}
.secondary-action{min-height:48px;padding:11px 16px;border:1px solid #344662;border-radius:11px;background:#ffffff08;color:#d8e2f1;font-size:13px;font-weight:600}
.secondary-action:hover{background:#ffffff12}
.profile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.profile-option{position:relative;min-height:96px;display:flex;align-items:center;gap:12px;padding:14px;border:1px solid #2b3c58;border-radius:13px;background:#101f39;cursor:pointer;transition:border-color .16s,background .16s,transform .16s}
.profile-option:hover{transform:translateY(-1px);border-color:#708de0}
.profile-option:has(input:checked){border-color:#a9c2ff;background:#172b4d;box-shadow:0 0 0 2px #2855df31}
.profile-option input{position:absolute;opacity:0;pointer-events:none}
.profile-mark{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:10px;background:#a9c9b12a;color:#c8ddcd;font-size:13px;font-weight:700}
.profile-option strong{display:block;color:#f4f7fb;font-size:13px}
.profile-option small{display:block;margin-top:3px;color:#9eacc1;font-size:11px;line-height:1.35}
.option-check{width:17px;height:17px;flex:0 0 17px;margin-left:auto;border:1px solid #71809b;border-radius:50%}
.profile-option:has(input:checked) .option-check{border:5px solid #a9c2ff;background:var(--blue)}
.complete-note{margin:0 0 18px;color:#aebbd1;font-size:13px}
.success-mark{width:52px;height:52px;display:grid;place-items:center;margin-bottom:17px;border-radius:17px;background:#a9c9b12b;color:#c8ddcd;font-size:26px;font-weight:700}
.summary-box{display:grid;gap:9px;margin:21px 0;padding:16px;border:1px solid #2b3c58;border-radius:13px;background:#101f39;color:#cbd6e6;font-size:13px}
.summary-box strong{color:#fff}
.auth-notice{min-height:20px;margin:15px 0 0;color:#b9c7dc;font-size:12px;line-height:1.5}
.demo-note{margin:auto 0 0;padding-top:25px;color:#7788a2;font-size:10px;line-height:1.5;text-align:center}
.mobile-auth-switch{display:none;align-items:center;justify-content:center;gap:5px;padding-top:20px;color:#aebbd1;font-size:12px;text-align:center}.mobile-auth-switch button{padding:3px;border:0;background:none;color:#e6d79e;font:inherit;font-weight:700;text-decoration:underline;text-decoration-color:#90b49a;text-underline-offset:3px}.mobile-auth-switch button:hover{color:#e2efe4}
[hidden]{display:none!important}
@media(max-width:900px){body{padding:20px}.auth-shell{grid-template-columns:minmax(280px,.78fr) minmax(480px,1.22fr);min-height:700px}.auth-aside{padding:30px 26px}.progress-step{min-height:58px}.auth-main{padding-left:30px;padding-right:30px}}
@media(max-width:760px){body{display:block;padding:0;background:var(--navy-deep)}.auth-shell{width:100%;min-height:0;grid-template-columns:1fr;border:0;border-radius:0;box-shadow:none} .auth-aside{justify-content:flex-start;padding:18px 22px 14px}.auth-brand{font-size:17px}.brand-mark{width:30px;height:30px}.event-meta{max-width:none;margin-top:4px;font-size:10px} .aside-copy{margin:17px 0 14px}.aside-copy h1{max-width:none;margin-bottom:8px;font-size:29px}.aside-copy>p:last-child{max-width:600px;font-size:12px}.aside-kicker{margin-bottom:8px}.progress-title{margin-bottom:7px;font-size:10px}.progress-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.progress-step{min-height:0;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:6px;padding:9px 8px;border-radius:10px}.progress-num{width:23px;height:23px;font-size:10px}.progress-step strong{font-size:10px}.progress-step small{display:none}.aside-foot{display:none}.auth-main{padding:22px 22px 24px}.auth-main-header{margin-bottom:26px}.mode-tabs{display:none}.mobile-auth-switch{display:flex}.auth-shell[data-mode="register"][data-step="2"] .mobile-auth-switch,.auth-shell[data-mode="register"][data-step="3"] .mobile-auth-switch,.auth-shell[data-mode="register"][data-step="4"] .mobile-auth-switch{display:none}.mode-tab{min-height:34px;padding:6px 11px;font-size:11px}.auth-heading h2{font-size:27px}.auth-content{width:100%}.auth-shell[data-mode="login"] .aside-copy{margin:24px 0 8px}.demo-note{padding-top:24px}}
@media(max-width:420px){.auth-main-header{align-items:flex-start;flex-direction:column;gap:15px}.mode-tabs{width:100%}.mode-tab{flex:1}.form-grid,.profile-grid{grid-template-columns:1fr}.form-field.full,.consent{grid-column:auto}.form-grid{gap:13px}.stage-actions{flex-direction:column-reverse}.stage-actions .secondary-action,.stage-actions .primary-action{width:100%}.profile-option{min-height:78px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}