:root{color-scheme:dark;--background:#0D0D0D;--surface:#141414;--raised:#1A1A1A;--line:#232323;--green:#00C853;--green-bright:#00E676;--white:#FFFFFF;--muted:#A0A0A0;--red:#FF3B30;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;background:var(--background);color:var(--white);line-height:1.55}
.page{width:min(100% - 40px,620px);margin:0 auto}
.brand{display:flex;align-items:center;gap:11px;padding:45px 0 55px;font-size:21px;font-weight:700;letter-spacing:.16em}
.brand img{display:block;width:36px;height:36px}
.edition{color:var(--green-bright);font-size:12px;letter-spacing:.04em;margin:0 0 18px}
h1{font-size:clamp(38px,8vw,60px);line-height:1.06;font-weight:600;letter-spacing:-.045em;margin:0 0 23px}
.intro{max-width:510px;color:var(--muted);font-size:16px;line-height:1.65;margin:0 0 34px}
.invite{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:20px}
.invite-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 24px}
h2{font-size:16px;font-weight:500;letter-spacing:-.01em;margin:0}
.private-mark{font-size:10px;color:var(--muted);border:1px solid #343434;border-radius:6px;padding:3px 7px}
.field-label{display:block;color:var(--muted);font-size:12px;margin:0 0 8px}
textarea{display:block;width:100%;min-height:80px;margin:0 0 13px;padding:13px;border:1px solid #303030;border-radius:11px;background:var(--background);color:#D8E4DC;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px;line-height:1.6;resize:none;overflow-wrap:anywhere;word-break:break-all}
textarea::placeholder{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:#777;font-size:13px}
textarea:focus-visible,button:focus-visible{outline:2px solid var(--green-bright);outline-offset:4px}
button{display:block;width:100%;min-height:49px;padding:13px 16px;border:0;border-radius:11px;background:var(--green);color:#071B0F;font:600 14px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;cursor:pointer}
button:hover:not(:disabled){background:var(--green-bright)}
button:disabled{background:var(--line);color:#878787;cursor:default}
.status{min-height:38px;margin:12px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
.status[data-tone="success"]{color:var(--green-bright)}
.status[data-tone="error"]{color:#FF8F88}
.private-note{margin:14px 0 0;padding-top:17px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);line-height:1.6}
.steps{padding:35px 0 24px}
.steps>h2{margin-bottom:24px}
ol{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:23px}
li{display:flex;align-items:flex-start;gap:16px}
.step-number{display:flex;align-items:center;justify-content:center;flex:0 0 29px;width:29px;height:29px;border:1px solid #303030;border-radius:9px;color:var(--muted);font-size:12px}
h3{font-size:14px;font-weight:500;margin:1px 0 5px}
li p{color:var(--muted);font-size:13px;margin:0;line-height:1.6;max-width:465px}
.version-note{margin:0 0 32px;color:#7F7F7F;font-size:11px;line-height:1.65;padding:17px 0 0;border-top:1px solid var(--line)}
.noscript{color:#FF8F88;font-size:13px}
footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:24px 0 35px;color:#6F6F6F;font-size:11px;border-top:1px solid var(--line)}
footer span:first-child{letter-spacing:.13em;font-weight:600}
@media(max-width:420px){.page{width:calc(100% - 32px)}.brand{padding:29px 0 39px}.invite{padding:19px;border-radius:17px}.invite-heading{margin-bottom:21px}.intro{font-size:15px;margin-bottom:27px}.private-note{font-size:12px}textarea{font-size:16px;min-height:116px}.status{font-size:12px}footer{flex-direction:column;gap:5px}}
@media(prefers-reduced-motion:no-preference){button{transition:background-color .12s}}