:root{--ink:#050506;--charcoal:#141610;--paper:#f4f4f0;--white:#fefefe;--lime:#dff346;--lime-deep:#a9cd2c;--line:#d4d5ce;--muted:#565851;--quiet:#6f7069;--danger:#a73a2a;--danger-bg:#fff3f0;--mono:"JetBrains Mono",monospace;--sans:"Poppins",sans-serif}
*{box-sizing:border-box}
html{background:var(--paper);color:var(--ink);font-family:var(--sans);scroll-behavior:smooth}
body{margin:0;min-width:320px;background:var(--paper);font-size:15px;line-height:1.55}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
.register-layout{min-height:100vh;display:grid;grid-template-columns:minmax(390px,38vw) minmax(0,1fr)}
.register-rail{position:sticky;top:0;height:100vh;overflow:auto;background:var(--ink);color:var(--white);padding:32px clamp(34px,4.2vw,72px) 36px;display:flex;flex-direction:column}
.brand{display:inline-flex;align-items:center;gap:12px;width:max-content}
.brand-mark{position:relative;width:48px;height:48px;display:grid;place-items:center;overflow:hidden;background:var(--ink)}
.brand-mark img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transform:scale(1.12)}
.brand-fallback{position:absolute;inset:0;display:grid;place-items:center;color:var(--lime);font-size:24px;font-weight:600}
.brand-copy{display:flex;flex-direction:column;line-height:1}
.brand-copy strong{font-size:22px;font-weight:600;letter-spacing:-.035em}
.brand-copy small{margin-top:6px;color:#d4d5ce;font-size:8px;font-weight:400;letter-spacing:.14em;text-transform:uppercase}
.rail-intro{margin-top:clamp(56px,8vh,92px)}
.rail-intro h1{max-width:560px;margin:0;font-size:clamp(44px,4.5vw,68px);font-weight:500;letter-spacing:-.04em;line-height:.98}
.rail-intro>p{max-width:470px;margin:26px 0 0;color:#bfc1b8;font-size:17px;line-height:1.7}
.setup-steps{list-style:none;margin:38px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid #2b2d25}
.setup-steps li{padding:20px 12px 20px 0}
.setup-steps li+li{padding-left:18px;border-left:1px solid #2b2d25}
.setup-steps span{display:block;color:var(--lime);font-family:var(--mono);font-size:12px;letter-spacing:.08em}
.setup-steps strong{display:block;margin-top:8px;font-size:14px;font-weight:500}
.setup-steps small{display:block;margin-top:3px;color:#8f9189;font-size:11px;line-height:1.45}
.plan-receipt{margin-top:30px}
.plan-receipt>p{margin:0 0 12px;color:#bfc1b8;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase}
.receipt-sheet{overflow:hidden;border:1px solid #43453e;border-radius:10px;background:var(--charcoal)}
.receipt-plan{display:flex;align-items:baseline;justify-content:space-between;gap:18px;padding:16px;border-bottom:1px dashed #4b4d46;color:var(--lime);font-family:var(--mono)}
.receipt-plan strong{font-size:16px;font-weight:500}
.receipt-plan span{font-size:13px;white-space:nowrap}
.receipt-lines{padding:10px 16px 13px}
.receipt-lines div{display:flex;justify-content:space-between;gap:20px;padding:4px 0;color:#bfc1b8;font-family:var(--mono);font-size:11px}
.receipt-lines span:last-child{max-width:58%;overflow:hidden;text-align:right;text-overflow:ellipsis;white-space:nowrap;color:#f4f4f0}
.rail-next{margin-top:25px;padding-top:22px;border-top:1px solid #2b2d25}
.rail-next h2{margin:0;font-size:16px;font-weight:500}
.rail-next p{max-width:450px;margin:8px 0 0;color:#9fa198;font-size:13px;line-height:1.65}
.rail-footer{margin-top:auto;padding-top:28px}
.rail-footer>a{display:inline-flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:500}
.ui-icon{width:18px;height:18px;flex:0 0 auto;stroke-width:1.7;transition:transform .2s ease}
.rail-footer>a:hover .ui-icon,.stage-header a:hover .ui-icon,.back-link:hover .ui-icon{transform:translateX(-2px)}
.rail-footer p{margin:20px 0 0;padding-top:18px;border-top:1px solid #2b2d25;color:#8f9189;font-size:12px}
.rail-footer p a{color:var(--lime)}
.register-stage{min-width:0;padding:0 clamp(30px,5vw,78px) 72px}
.stage-header{min-height:96px;display:flex;align-items:center;justify-content:flex-end;gap:30px;border-bottom:1px solid var(--line)}
.stage-header a{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500}
.registration-form{width:min(900px,100%);margin:0 auto;padding-top:38px}
.form-section{padding:0 0 32px}
.form-section+.form-section{padding-top:32px;border-top:1px solid var(--line)}
.section-label{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.section-label h2{margin:0;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.09em;text-transform:uppercase;white-space:nowrap}
.section-label::after{content:"";height:1px;background:var(--line);flex:1}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 28px}
.field{display:flex;flex-direction:column;min-width:0}
.field.full{grid-column:1/-1}
.field>label,.field-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:13px;font-weight:500}
.required{color:var(--danger)}
.optional{color:var(--quiet);font-family:var(--mono);font-size:9px;font-weight:400;letter-spacing:.06em;text-transform:uppercase}
input,select{width:100%;height:50px;border:1px solid #bfc1b8;border-radius:10px;background:var(--white);color:var(--ink);padding:0 14px;outline:0;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
input::placeholder{color:#6f7069}
input:hover,select:hover{border-color:#8a8a85}
input:focus-visible,select:focus-visible{border-color:var(--ink);box-shadow:0 0 0 3px rgba(223,243,70,.72)}
input[aria-invalid=true],select[aria-invalid=true]{border-color:var(--danger);background:var(--danger-bg)}
.field-help,.field-error{margin-top:7px;font-size:11px;line-height:1.5}
.field-help{color:var(--muted)}
.field-error{color:var(--danger);font-weight:500}
.input-suffix{display:grid;grid-template-columns:minmax(0,1fr) auto}
.input-suffix input{border-radius:10px 0 0 10px}
.input-suffix span{min-width:142px;border:1px solid #bfc1b8;border-left:0;border-radius:0 10px 10px 0;background:#ebebe6;color:var(--muted);padding:0 13px;display:flex;align-items:center;font-family:var(--mono);font-size:11px}
.mobile-receipt{display:none;margin:0 0 28px}
.mobile-receipt .receipt-sheet{border-color:#2b2d25}
.plan-options{display:grid;gap:8px}
.plan-option{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:13px;min-height:58px;border:1px solid #bfc1b8;border-radius:10px;background:var(--white);padding:10px 15px;cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease}
.plan-option:hover{border-color:var(--ink);transform:translateY(-1px)}
.plan-option:has(input:checked){border-color:var(--lime-deep);background:#f6ffd1;box-shadow:inset 0 0 0 1px var(--lime-deep)}
.plan-option:focus-within{box-shadow:0 0 0 3px rgba(223,243,70,.72)}
.plan-option input{width:18px;height:18px;margin:0;padding:0;accent-color:var(--ink);box-shadow:none}
.plan-name{font-size:14px;font-weight:600}
.plan-price{font-family:var(--mono);font-size:12px;white-space:nowrap}
.payment-note{margin:12px 0 0;border:1px solid #dfe69e;border-radius:8px;background:#f7f8e7;padding:13px 15px;color:#40423c;font-size:11px;line-height:1.6}
.alert{margin-bottom:28px;border:1px solid #e7a99d;border-radius:10px;background:var(--danger-bg);padding:15px 17px;color:#7a281b;font-size:12px}
.alert strong{display:block;margin-bottom:6px;font-size:13px}
.alert ul{margin:0;padding-left:18px}
.form-footer{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:28px;border-top:1px solid var(--line)}
.footer-note{max-width:360px;color:var(--muted);font-size:11px;line-height:1.55}
.footer-actions{display:flex;align-items:center;justify-content:flex-end;gap:20px}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500}
.submit-button{min-height:52px;border:1px solid var(--ink);border-radius:9px;background:var(--lime);color:var(--ink);padding:0 24px;display:inline-flex;align-items:center;justify-content:center;gap:34px;font-size:14px;font-weight:600;transition:background .18s ease,transform .18s ease}
.submit-button:hover{background:var(--white);transform:translateY(-1px)}
.submit-button:hover .ui-icon{transform:translateX(2px)}
.submit-button:disabled{cursor:not-allowed;opacity:.55}
.success-stage{min-height:100vh;display:grid;place-items:center;padding:40px;background:var(--paper)}
.success-card{width:min(720px,100%);border:1px solid var(--line);border-radius:16px;background:var(--white);overflow:hidden}
.success-head{background:var(--ink);color:var(--white);padding:46px}
.success-mark{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--lime);color:var(--ink)}
.success-mark .ui-icon{width:24px;height:24px}
.success-head h1{margin:26px 0 12px;font-size:clamp(34px,5vw,54px);font-weight:500;letter-spacing:-.04em;line-height:1.02}
.success-head p{margin:0;color:#bfc1b8}
.success-body{padding:30px 46px 42px}
.success-body dl{margin:0 0 26px}
.success-body dl div{display:grid;grid-template-columns:130px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}
.success-body dt{color:var(--quiet);font-family:var(--mono);font-size:10px;text-transform:uppercase}
.success-body dd{margin:0;font-weight:500;overflow-wrap:anywhere}
.success-body p{color:var(--muted)}
.success-body a{margin-top:8px;min-height:50px;display:inline-flex;align-items:center;gap:24px;border:1px solid var(--ink);border-radius:9px;background:var(--lime);padding:0 20px;font-weight:600}

@media(max-width:1080px){.register-layout{grid-template-columns:minmax(340px,36vw) minmax(0,1fr)}
.register-rail{padding-inline:32px}
.setup-steps{grid-template-columns:1fr}
.setup-steps li{display:grid;grid-template-columns:34px 1fr;column-gap:12px}
.setup-steps li+li{padding-left:0;border-left:0;border-top:1px solid #2b2d25}
.setup-steps strong{margin-top:0}
.setup-steps small{grid-column:2}
.stage-header{min-height:80px}
.register-stage{padding-inline:30px}
.field-grid{gap:20px}
}

@media(max-width:820px){.register-layout{display:block}
.register-rail{position:relative;height:auto;min-height:0;padding:24px 24px 34px}
.rail-intro{margin-top:42px}
.rail-intro h1{font-size:clamp(40px,11vw,62px)}
.rail-intro>p{margin-top:18px;font-size:15px}
.setup-steps{grid-template-columns:repeat(3,1fr);margin-top:28px}
.setup-steps li{display:block;padding:16px 10px 14px 0}
.setup-steps li+li{padding-left:12px;border-top:0;border-left:1px solid #2b2d25}
.setup-steps strong{margin-top:7px;font-size:12px}
.setup-steps small{font-size:10px}
.register-rail>.plan-receipt,.rail-next,.rail-footer{display:none}
.register-stage{padding:0 24px 52px}
.stage-header{min-height:72px;justify-content:space-between}
.stage-header:before{content:"Workspace setup";font-family:var(--mono);font-size:10px;letter-spacing:.09em;text-transform:uppercase}
.stage-header a:first-child{display:none}
.registration-form{padding-top:30px}
.mobile-receipt{display:block}
.form-footer{align-items:stretch;flex-direction:column}
.footer-note{text-align:center;max-width:none}
.footer-actions{flex-direction:column-reverse;align-items:stretch}
.submit-button{width:100%}
.back-link{justify-content:center}
.success-stage{padding:20px}
.success-head,.success-body{padding:32px 24px}
}

@media(max-width:620px){.brand-mark{width:42px;height:42px}
.brand-copy strong{font-size:19px}
.field-grid{grid-template-columns:1fr}
.field.full{grid-column:auto}
.form-section{padding-bottom:26px}
.form-section+.form-section{padding-top:26px}
.input-suffix span{min-width:118px;padding-inline:10px;font-size:10px}
.plan-option{grid-template-columns:auto minmax(0,1fr);gap:11px}
.plan-price{grid-column:2}
.stage-header a{font-size:12px}
.receipt-lines div{font-size:10px}
.success-body dl div{grid-template-columns:1fr;gap:5px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*,*:before,*:after{transition:none!important}
}