.auth-screen{height:calc(100dvh - var(--header-h) - 2px);grid-template-columns:1fr;display:grid;overflow:hidden}.auth-stage{overscroll-behavior:contain;background-color:var(--paper);background-image:radial-gradient(115% 80% at 50% -12%,oklch(78% .15 80/.2),#0000 62%),radial-gradient(85% 65% at 105% 108%,oklch(66% .12 245/.16),#0000 60%),radial-gradient(oklch(26% .02 75/.055) 1.5px,#0000 1.7px);background-size:auto,auto,22px 22px;min-height:0;padding:clamp(10px,2.4vh,40px) 16px;display:flex;position:relative;overflow-y:auto}.auth-col{flex-direction:column;gap:clamp(8px,1.5vh,16px);width:100%;max-width:424px;margin:auto;display:flex}.auth-tabs{background:var(--paper-2);border:2px solid var(--ink);border-radius:999px;grid-template-columns:1fr 1fr;gap:4px;padding:4px;display:grid}.auth-tab{font-family:var(--display);color:var(--ink-soft);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:clamp(7px,1.2vh,10px) 12px;font-size:clamp(14px,1.7vh,15.5px);font-weight:700;transition:background-color .18s,color .18s}.auth-tab:hover{color:var(--ink)}.auth-tab[aria-selected=true]{background:var(--accent);color:var(--ink);box-shadow:var(--shadow-pop-press)}.auth-tab:focus-visible{outline:3px solid var(--sky);outline-offset:2px}.auth-card{flex-direction:column;gap:clamp(8px,1.5vh,16px);padding:clamp(14px,2.2vh,26px);display:flex}.auth-head{text-align:center}.auth-head__title{letter-spacing:-.02em;font-size:clamp(20px,2.9vh,27px);font-weight:800;line-height:1.15}.auth-head__sub{color:var(--ink-soft);margin-top:4px;font-size:clamp(13px,1.6vh,14.5px);line-height:1.35}.auth-notes{flex-direction:column;gap:8px;display:flex}.auth-notes:empty{display:none}.auth-note{color:var(--ink);background:var(--paper-2);border:2px solid var(--ink);border-radius:10px;align-items:flex-start;gap:9px;padding:9px 11px;font-size:13.5px;line-height:1.4;display:flex}.auth-note--warn{border-color:var(--coral)}.auth-note--warn .auth-note__icon{color:var(--coral)}.auth-note--info{border-color:var(--sky)}.auth-note--info .auth-note__icon{color:var(--sky)}.auth-note--ok{border-color:var(--leaf)}.auth-note--ok .auth-note__icon{color:var(--leaf)}.auth-note__icon{flex:none;width:17px;height:17px;margin-top:1px}.auth-note__hint{color:var(--ink-soft);margin-top:4px;font-size:12.5px;display:block}.auth-body,.auth-form{flex-direction:column;gap:clamp(8px,1.5vh,15px);display:flex}.auth-card .bb-btn{box-shadow:var(--shadow-pop-sm);padding:clamp(9px,1.5vh,13px) 22px;font-size:clamp(15px,1.8vh,16.5px)}.auth-card .bb-btn:hover{box-shadow:var(--shadow-pop)}.auth-card .bb-btn:active{box-shadow:var(--shadow-pop-press)}.auth-card .bb-input{padding:clamp(9px,1.4vh,12px) 14px;font-size:16px}.auth-card .bb-label{margin-bottom:5px;font-size:clamp(13px,1.6vh,14.5px)}.auth-social{justify-content:center}.auth-social__mark{flex:none;width:19px;height:19px}.auth-rule{letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);align-items:center;gap:12px;font-size:12.5px;font-weight:700;display:flex}.auth-rule:after,.auth-rule:before{content:"";border-top:2px solid var(--ink);opacity:.35;flex:1}.auth-label-row{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.auth-forgot{color:var(--ink-soft);text-underline-offset:2px;margin-bottom:5px;font-size:13px;font-weight:700;text-decoration:underline}.auth-forgot:hover{color:var(--ink)}.auth-pw{position:relative}.auth-pw__input{padding-right:46px!important}.auth-pw__eye{width:34px;height:34px;color:var(--ink-soft);cursor:pointer;background:0 0;border:0;border-radius:8px;place-items:center;display:grid;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.auth-pw__eye svg{width:19px;height:19px}.auth-pw__eye:hover{color:var(--ink);background:var(--paper-2)}.auth-pw__eye:focus-visible{outline:3px solid var(--sky);outline-offset:0}.auth-hint{color:var(--ink-soft);padding-top:5px;font-size:12.5px}.auth-remember{cursor:pointer;align-items:center;gap:8px;font-size:14px;display:inline-flex}.auth-remember input{width:17px;height:17px;accent-color:var(--accent);cursor:pointer;border-radius:4px}.auth-legal{color:var(--ink-soft);text-align:center;padding-top:2px;font-size:12.5px;line-height:1.45}.auth-legal a{color:var(--ink);text-underline-offset:2px;font-weight:700;text-decoration:underline}.auth-back{text-align:center;font-size:13.5px}.auth-back a{color:var(--ink-soft);text-underline-offset:2px;font-weight:700;text-decoration:underline}.auth-back a:hover{color:var(--ink)}.auth-done{text-align:center;flex-direction:column;align-items:center;gap:10px;display:flex}.auth-done__seal{margin-bottom:2px}.auth-done__title{font-size:clamp(17px,2.2vh,20px);font-weight:800}.auth-done__body{color:var(--ink-soft);font-size:14px;line-height:1.45}.auth-done .bb-btn{margin-top:6px}.auth-reveal{grid-template-rows:0fr;transition:grid-template-rows .3s cubic-bezier(.22,1,.36,1);display:grid}.auth-reveal--open{grid-template-rows:1fr}.auth-reveal__clip{min-height:0;margin-inline:-14px;padding-inline:14px;overflow:hidden}.auth-reveal__body{padding-bottom:10px}.auth-brand{display:none}@media (width>=1024px){.auth-screen{grid-template-columns:minmax(0,1.02fr) minmax(0,1fr)}.auth-screen .auth-brand{background-color:var(--paper-2);border-right:2px solid var(--ink);flex-direction:column;justify-content:center;padding:clamp(32px,6vh,68px) clamp(36px,4vw,72px);display:flex;position:relative;overflow:hidden}.auth-brand__inner{z-index:1;max-width:460px;position:relative}.auth-brand__title{letter-spacing:-.03em;margin-top:18px;font-size:clamp(32px,4.4vh,50px);font-weight:800;line-height:1.04}.auth-brand__points{flex-direction:column;gap:clamp(9px,1.6vh,14px);margin-top:clamp(18px,3vh,30px);display:flex}.auth-brand__points li{align-items:flex-start;gap:11px;font-size:clamp(15px,1.9vh,17px);font-weight:500;line-height:1.4;display:flex}.auth-brand__tick{width:24px;height:24px;color:var(--ink);background:var(--leaf);border:2px solid var(--ink);border-radius:999px;flex:none;place-items:center;margin-top:1px;display:grid}.auth-brand__tick svg{width:14px;height:14px}.auth-brand__note{margin-top:clamp(16px,3vh,30px)}.auth-brand__stack{pointer-events:none;width:340px;height:340px;position:absolute;bottom:-150px;right:-48px}.auth-brand__book{border:2px solid var(--ink);border-radius:var(--book-radius);width:168px;height:216px;box-shadow:inset 9px 0 0 var(--paper),inset 12px 0 0 var(--ink);position:absolute;inset:auto auto 0 0}.auth-brand__book--back{background:var(--sky);opacity:.55;transform:translate(96px,-46px)rotate(11deg)}.auth-brand__book--mid{background:var(--coral);opacity:.75;transform:translate(56px,-22px)rotate(5deg)}.auth-brand__book--front{background:var(--accent);transform:translate(18px)rotate(-3deg)}}@media (height<=700px){.auth-head__sub{display:none}.auth-head__title{font-size:18px}.auth-col{gap:6px}.auth-card{gap:6px;padding:12px 12px 10px}.auth-body,.auth-form{gap:7px}.auth-reveal__body{padding-bottom:6px}.auth-tab{padding:7px 12px;font-size:14px}.auth-note{padding:7px 9px;font-size:12.5px}.auth-note__icon{width:15px;height:15px}.auth-rule{font-size:11.5px}.auth-legal{padding-top:0;font-size:11px;line-height:1.35}}@media (height<=620px){.auth-brand__stack{display:none}}@media (prefers-reduced-motion:reduce){.auth-reveal,.auth-tab{transition:none}}