.auth-screen,.intro-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card,.intro-video-box{background:var(--panel);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:32px;max-width:480px;width:100%}.divider{text-align:center;color:var(--muted);margin:16px 0;position:relative}.divider:before{content:'';height:1px;background:var(--line);position:absolute;top:50%;left:0;right:0}.divider span{background:var(--panel);position:relative;padding:0 12px}.intro-video-box{text-align:center}.play-icon{font-size:44px;margin-bottom:12px}.countdown{margin:20px auto;width:56px;height:56px;border-radius:999px;display:grid;place-items:center;background:var(--accent-dark);color:white;font-weight:900}

.auth-mode-panel{margin-top:6px}.auth-mode-panel h2{font-size:22px;margin-top:0}.small-auth-note{font-size:13px;margin-top:-4px}.auth-switch-text{text-align:center;color:var(--muted);font-size:13px;margin:14px 0 0}.link-btn{border:0;background:transparent;color:var(--accent-dark);font-weight:900;text-decoration:underline;cursor:pointer;padding:0 2px}.link-btn:hover{opacity:.78}


/* v48 auth layout polish */
.auth-card{display:flex;flex-direction:column}.google-btn{margin-top:16px}.divider{margin:18px 0 18px}.auth-mode-panel{margin-top:0;border-top:0;padding-top:0}.auth-mode-panel h2{text-align:left;margin-bottom:4px}.auth-switch-text.bottom-link{border-top:1px solid var(--line);padding-top:16px;margin-top:18px}.link-btn{font-size:13px}.auth-mode-panel .primary-btn.full{margin-top:14px}


/* v50 auth theme */
.auth-card,.intro-video-box{background:var(--panel);border-color:var(--line);color:var(--ink)}.divider:before{background:var(--line)}.divider span{background:var(--panel);color:var(--muted)}.auth-error{background:color-mix(in srgb,#7a2f26 10%,var(--card));border-color:#9b5a50;color:var(--ink)}