/* The sign-in of every .PM host (signin.html): one centred
   column on black, the landing's finesse (Outfit, hairlines); the code drawn
   as its exact number of boxes, sent once they are filled (signin.js).
   /<brand.host>/signin: the same on white, in the brand's colour, logo and
   font (.cs-brand, the variables set by the page). */
:root{--cs-bg:#050608;--cs-surface:#0e1014;--cs-ink:#f4f5f7;--cs-ink-2:#c8cdd7;--cs-mute:#8e96a4;--cs-line:rgba(255,255,255,.1);--cs-line-2:rgba(255,255,255,.22);--cs-accent:#f4f5f7;--cs-on-accent:#050608;--cs-font:"Outfit";--cs-bad:#fca5a5;color-scheme:dark}
.cs-brand{--cs-bg:#fff;--cs-surface:#fff;--cs-ink-2:#3a3f48;--cs-mute:#6b7280;--cs-line:rgba(11,12,14,.1);--cs-line-2:rgba(11,12,14,.2);--cs-bad:#b42318;color-scheme:light}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.cs{margin:0;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--cs-bg);color:var(--cs-ink-2);font:400 16px/1.55 var(--cs-font),"Outfit",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
.cs-main{flex:1;display:flex;flex-direction:column;justify-content:center;width:100%;max-width:380px;margin:0 auto;padding:48px 24px 24px}
.cs-logo{align-self:center;display:inline-flex;margin-bottom:10px;color:var(--cs-ink);text-decoration:none}
.cs-logo img{display:block;height:26px;width:auto;max-width:200px;object-fit:contain}
.cs-logo span{font-weight:600;letter-spacing:.14em;font-size:13px;text-transform:uppercase}
.cs-form{display:grid;gap:18px;text-align:center}
.cs-title{margin:0;color:var(--cs-ink);font-weight:500;font-size:clamp(26px,6vw,32px);line-height:1.15;letter-spacing:-.02em;text-wrap:balance}
.cs-lead{margin:-6px 0 8px;color:var(--cs-mute);font-size:15px;font-weight:300;text-wrap:pretty}
.cs-note{margin:4px 0 0;color:var(--cs-mute);font-size:13px;font-weight:300}
.cs-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.cs-field input{width:100%;height:52px;padding:0 18px;border:1px solid var(--cs-line-2);border-radius:14px;background:transparent;color:var(--cs-ink);font:inherit;font-size:16px;font-weight:400;text-align:center;transition:border-color .2s}
.cs-field input::placeholder{color:var(--cs-mute);font-weight:300}
.cs-field input:focus,.cs-code-input:focus-visible+.cs-cells span.is-current{outline:none;border-color:var(--cs-ink)}
.cs-btn{height:52px;border:0;border-radius:999px;background:var(--cs-accent);color:var(--cs-on-accent);font:inherit;font-size:15px;font-weight:500;letter-spacing:.01em;cursor:pointer;transition:opacity .2s,transform .2s}
.cs-btn:hover{opacity:.9}
.cs-btn:active{transform:scale(.99)}
.cs-links{display:flex;justify-content:center;gap:22px;margin:6px 0 0;font-size:13px}
.cs-links a{color:var(--cs-mute);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.cs-links a:hover{color:var(--cs-ink);border-color:var(--cs-line-2)}
.cs-alert{margin:0 0 20px;padding:12px 16px;border:1px solid color-mix(in srgb,var(--cs-bad) 45%,transparent);border-radius:14px;color:var(--cs-bad);font-size:14px;text-align:center}
.cs-foot{padding:20px 24px 28px;color:var(--cs-mute);font-size:11px;font-weight:300;letter-spacing:.14em;text-transform:uppercase;text-align:center;opacity:.8}
/* The code: without JavaScript, a plain field; with it, the field lies over
   its boxes (paste, one-time-code autofill, caret all kept) and the boxes
   show the digits. */
.cs-code{position:relative;margin:4px auto 2px;width:100%}
.cs-code-input{width:100%;height:60px;border:1px solid var(--cs-line-2);border-radius:14px;background:transparent;color:var(--cs-ink);font:500 26px/1 ui-monospace,"SF Mono",Menlo,monospace;letter-spacing:.5em;text-align:center}
.cs-cells{display:none}
.cs-js .cs-cells{display:grid;grid-template-columns:repeat(var(--cs-cells,6),1fr);gap:clamp(6px,2.4vw,10px)}
.cs-js .cs-cells span{display:grid;place-items:center;height:60px;border:1px solid var(--cs-line-2);border-radius:14px;color:var(--cs-ink);font-size:26px;font-weight:500;transition:border-color .15s,background .15s}
.cs-js .cs-cells span.is-filled{border-color:var(--cs-ink)}
.cs-js .cs-code-input:focus+.cs-cells span.is-current{border-color:var(--cs-ink);box-shadow:0 0 0 3px color-mix(in srgb,var(--cs-ink) 14%,transparent)}
.cs-js .cs-code-input{position:absolute;inset:0;height:100%;border:0;background:transparent;color:transparent;caret-color:transparent;letter-spacing:0;opacity:.01;z-index:1}
.cs-js .cs-code-submit{visibility:hidden;height:0;margin:-9px 0}
.cs-code.is-sending .cs-cells span{border-color:var(--cs-mute);color:var(--cs-mute)}
@media (max-width:360px){.cs-js .cs-cells span,.cs-code-input{height:52px;font-size:22px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.cs-note a{color:var(--cs-ink);text-decoration:none;border-bottom:1px solid var(--cs-line-2)}
/* card.pm/start: the terms, to accept before the code is sent. */
.cs-check{display:flex;gap:10px;align-items:flex-start;margin:2px 0 4px;color:var(--cs-mute);font-size:13px;font-weight:300;line-height:1.45;text-align:left;cursor:pointer}
.cs-check input{flex:none;margin:2px 0 0;inline-size:16px;block-size:16px;accent-color:var(--cs-accent,#fff)}
.cs-check a{color:var(--cs-ink);text-decoration:none;border-bottom:1px solid var(--cs-line-2)}
/* card.pm/start/card: the first card's fields, with their labels, and the offer. */
.cs-start .cs-field{display:grid;gap:6px;text-align:left}
.cs-start .cs-field span{color:var(--cs-mute);font-size:12px;letter-spacing:.04em}
.cs-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cs-offer{margin:0;padding:10px 14px;border:1px solid var(--cs-line-2);border-radius:12px;color:var(--cs-ink);font-size:14px;font-weight:500}
@media (max-width:420px){.cs-pair{grid-template-columns:1fr}}
.cs-start select{inline-size:100%;padding:13px 14px;border:1px solid var(--cs-line-2);border-radius:14px;background:transparent;color:var(--cs-ink);font:inherit}
.cs-start select option{color:#111}