/* Screen04: real asynchronous first-edit preparation inside the Proof shell. */
#proof-preparation{min-height:100vh;background:var(--proof-background);color:var(--proof-text);font:var(--proof-font-body)/var(--proof-leading-body) var(--proof-font-family)}
#proof-preparation[hidden]{display:none!important}
body.proof-preparing>.app-header,body.proof-preparing>#editor,body.proof-preparing>.app-help{display:none!important}
.proof-prep-toolbar{display:flex;align-items:center;gap:12px;padding:20px 36px;border-bottom:1px solid var(--proof-border);min-height:90px}
.proof-prep-toolbar .proof-button{gap:12px;min-height:48px}
.proof-prep-twitch{border:0;border-left:1px solid var(--proof-border);padding:4px 24px;margin-left:18px;background:none;color:var(--proof-text-muted);font:inherit;text-align:left;cursor:pointer}
.proof-prep-twitch.connected{color:var(--proof-text)}
.proof-prep-twitch.connected::after{content:"";display:inline-block;margin-left:12px;width:8px;height:8px;border-radius:var(--proof-radius-round);background:var(--proof-success)}
.proof-prep-group{margin-left:auto;font-size:14px;color:var(--proof-text-muted)}
.proof-prep-layout{display:grid;grid-template-columns:368px minmax(0,1fr);min-height:688px}
.proof-prep-sidebar{border-right:1px solid var(--proof-border);padding:14px 14px 24px 28px;min-width:0}
.proof-prep-entry{display:flex;position:relative;border-radius:var(--proof-radius-control);min-width:0}
.proof-prep-entry.is-current{background:var(--proof-selection)}
.proof-prep-entry>button{display:flex;align-items:center;gap:16px;min-width:0;flex:1;text-align:left;border:0;background:none;padding:10px 12px;color:inherit;font:inherit;cursor:pointer}
.proof-prep-entry>button>span:last-child{min-width:0}
.proof-prep-entry strong{display:block;font-size:16px;line-height:1.4;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.proof-prep-entry small{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--proof-text-muted);margin-top:6px}
.proof-prep-entry i{width:18px;height:18px;border:2px solid var(--proof-border);border-radius:var(--proof-radius-round);flex-shrink:0}
.proof-prep-entry .working{border-top-color:var(--proof-primary);border-right-color:var(--proof-primary)}
.proof-prep-entry details{align-self:center;margin-right:12px}
.proof-prep-entry summary{list-style:none;cursor:pointer;width:24px;height:32px;display:grid;place-items:center;color:var(--proof-text-muted)}
.proof-prep-entry summary svg{width:24px;height:24px}
.proof-prep-entry details>div{position:absolute;z-index:var(--proof-z-menu);right:12px;top:65px;background:var(--proof-surface);box-shadow:var(--proof-shadow-menu);padding:8px;border-radius:var(--proof-radius-control)}
.proof-prep-entry details:not([open])>div{display:none}
.proof-prep-entry details button{background:none;border:0;color:var(--proof-text);padding:8px 12px;font:inherit;white-space:nowrap;cursor:pointer}
.proof-prep-frame{position:relative;display:grid;place-items:center;width:70px;height:70px;flex-shrink:0;border-radius:var(--proof-radius-control);overflow:hidden;background:var(--proof-surface-subtle);color:var(--proof-text-muted)}
.proof-prep-frame>svg{width:32px;height:32px}
.proof-prep-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.proof-prep-frame>span{display:none}
.proof-prep-large{width:100%;height:352px}
.proof-prep-large>svg{width:64px;height:64px}
.proof-prep-large>span{display:block;position:absolute;left:12px;bottom:12px;border-radius:var(--proof-radius-small);padding:4px 8px;background:var(--proof-text);color:var(--proof-text-on-action);font-size:14px;font-variant-numeric:tabular-nums}
.proof-prep-main{display:grid;grid-template-columns:minmax(0,368fr) minmax(0,542fr);align-content:start;gap:60px;padding:68px 72px 60px 128px;min-width:0}
.proof-prep-copy{min-width:0}
.proof-prep-copy h1{font-size:clamp(28px,2.5vw,38px);font-weight:700;line-height:1.15;letter-spacing:var(--proof-tracking-heading);margin:0 0 14px;text-wrap:balance}
.proof-prep-intro{font-size:20px;line-height:1.45;color:var(--proof-text-muted);margin:0 0 42px}
.proof-prep-steps{list-style:none;padding:0;margin:0}
.proof-prep-steps li{display:flex;position:relative;gap:32px;padding:0 0 42px;min-height:96px}
.proof-prep-steps li:not(:last-child)::after{content:"";position:absolute;left:20px;top:50px;bottom:12px;width:1px;background:var(--proof-border)}
.proof-prep-steps li.done::after{background:var(--proof-primary)}
.proof-prep-step-symbol{display:grid;place-items:center;border:3px solid var(--proof-border);width:40px;height:40px;border-radius:var(--proof-radius-round);flex-shrink:0}
.proof-prep-step-symbol svg{width:24px;height:24px}
.proof-prep-steps .done .proof-prep-step-symbol{background:var(--proof-primary);border-color:var(--proof-primary);color:var(--proof-text-on-action)}
.proof-prep-steps .current .proof-prep-step-symbol{border-top-color:var(--proof-primary);border-right-color:var(--proof-primary);animation:proof-prep-spin 1.2s linear infinite}
.proof-prep-steps h2{font-size:18px;font-weight:500;line-height:1.3;margin:4px 0 4px}
.proof-prep-steps p{font-size:14px;line-height:1.45;color:var(--proof-text-muted);margin:0}
.proof-prep-leave{display:flex;gap:16px;align-items:flex-start;border-top:1px solid var(--proof-border);padding-top:28px;margin-top:0;color:var(--proof-text-muted)}
.proof-prep-leave svg{width:24px;height:24px;flex-shrink:0}
.proof-prep-leave p{font-size:14px;line-height:1.5;margin:0}
.proof-prep-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:40px}
#proof-prep-cancel,.proof-prep-recent>div>button{border:0;background:none;font:inherit;color:var(--proof-text-muted);cursor:pointer;padding:8px 0;font-size:14px;text-decoration:underline;text-underline-offset:3px}
#proof-prep-cancel:disabled{color:var(--proof-disabled-text);cursor:wait}
.proof-prep-feedback{font-size:14px;color:var(--proof-error);padding:12px;background:var(--proof-error-surface);border-radius:var(--proof-radius-control)}
.proof-prep-recent{margin:0 36px;border-top:1px solid var(--proof-border);padding:16px 0 48px}
.proof-prep-recent h2{font-size:18px;line-height:1.4;font-weight:600;margin:0 0 12px}
.proof-prep-recent>div{display:flex;gap:32px;align-items:center}
.proof-prep-recent-items{display:grid;grid-template-columns:minmax(0,367px) repeat(2,minmax(0,335px));gap:40px;flex:1}
.proof-prep-recent .proof-prep-entry{background:none;border-radius:0}
.proof-prep-recent .proof-prep-entry:not(:last-child){border-right:1px solid var(--proof-border)}
.proof-prep-recent .proof-prep-entry>button{padding:0 20px 0 0;gap:22px}
.proof-prep-recent .proof-prep-frame{width:96px;height:64px}
.proof-prep-recent>div>button{display:flex;gap:16px;align-items:center;text-decoration:none;white-space:nowrap}
.proof-prep-recent>div>button svg{width:22px;height:22px}
#proof-prep-notify .notify-offer{display:flex;flex-wrap:wrap;gap:8px 12px;background:var(--proof-surface-subtle);border:0;color:var(--proof-text);padding:14px;margin-top:18px;border-radius:var(--proof-radius-control);font-size:14px}
#proof-prep-notify .notify-offer span{color:var(--proof-text-muted)}
#proof-prep-notify .notify-offer button{font:inherit;background:none;color:var(--proof-selection-text);border:0;padding:4px 0;cursor:pointer}
#proof-preparation :is(button,a,summary):focus-visible{outline:2px solid var(--proof-focus);outline-offset:3px}
#proof-preparation [hidden]{display:none!important}
@keyframes proof-prep-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.proof-prep-steps .current .proof-prep-step-symbol{animation:none}}
@media(max-width:1400px){.proof-prep-layout{grid-template-columns:290px minmax(0,1fr)}.proof-prep-main{padding:60px 40px;gap:32px}.proof-prep-sidebar{padding-left:16px}.proof-prep-steps li{gap:20px}.proof-prep-actions{gap:12px;flex-wrap:wrap}.proof-prep-recent-items{gap:24px}}
@media(max-width:1050px){.proof-prep-layout{grid-template-columns:230px minmax(0,1fr)}.proof-prep-main{grid-template-columns:1fr;padding:32px}.proof-prep-preview{max-width:400px}.proof-prep-toolbar{flex-wrap:wrap}.proof-prep-twitch{margin-left:0;padding-left:12px}.proof-prep-recent-items{grid-template-columns:1fr}.proof-prep-recent .proof-prep-entry:not(:last-child){border-right:0}}

#proof-preparation .proof-account-menu>summary>svg{width:24px;height:24px}
.proof-prep-twitch{display:flex;align-items:center;gap:18px}
.proof-prep-twitch>svg{width:36px;height:36px;flex-shrink:0;color:#9146ff}
.proof-prep-twitch strong{display:block;font-size:14px;font-weight:500}
.proof-prep-twitch small{display:block;font-size:14px;color:var(--proof-text-muted)}
.proof-prep-large img{object-position:center 20%}

/* Optional source playback and authoritative progress reuse existing app nodes. */
.proof-prep-media{min-width:0}
#proof-prep-original-toggle{border:0;background:none;color:var(--proof-selection-text);font:inherit;font-size:14px;padding:12px 0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.proof-prep-details{margin-top:8px;font-size:14px;color:var(--proof-text-muted)}
.proof-prep-details summary{cursor:pointer;padding:8px 0;color:var(--proof-text)}
.proof-prep-progress{display:grid;grid-template-columns:1fr auto;gap:12px;padding:12px 0}
.proof-prep-progress #job-progress,.proof-prep-progress #job-detail,.proof-prep-progress #job-steps{grid-column:1/-1}
.proof-prep-progress #job-progress{width:100%;accent-color:var(--proof-primary)}
.proof-prep-progress #job-percent{font-variant-numeric:tabular-nums;color:var(--proof-text)}
.proof-prep-progress #job-steps{display:grid;gap:8px;font-size:14px;margin:0;color:var(--proof-text-muted)}
.proof-prep-progress #job-steps li.now{color:var(--proof-text)}
.proof-prep-progress #job-steps li.now::before{background:var(--proof-primary);border-color:var(--proof-primary)}
.proof-prep-original #player{display:block;width:100%;height:352px;max-height:none;object-fit:contain;background:var(--proof-text);border-radius:var(--proof-radius-control)}
.proof-prep-original #player-status{font-size:14px;background:none;color:var(--proof-text-muted);padding:12px 0;margin:0;border:0}
.proof-prep-original #player-status strong{color:var(--proof-text);font-weight:500}
.proof-prep-original #player-status p{margin:4px 0 0}
.proof-prep-original #playback-source-status{font-size:14px;color:var(--proof-text-muted)}
.proof-prep-entry i.queued{position:relative;border-color:var(--proof-text-muted)}
.proof-prep-entry i.queued::after{content:"";position:absolute;top:3px;left:6px;width:4px;height:5px;border-left:1px solid currentColor;border-bottom:1px solid currentColor}