/* 生花 · 视频改版工作台
   Ink on cool paper, one rouge accent (胭脂) reserved for the next action and the current step.
   System fonts only: the page must load fast in mainland China without external font hosts. */
:root{
 --ink:#1d2130;--ink-2:#454b5e;--muted:#757b8c;--faint:#a3a8b5;
 --line:#e3e4ea;--line-2:#d3d5de;--bg:#f2f2f5;--panel:#fff;--sunk:#f7f7f9;
 --rouge:#b4284f;--rouge-deep:#8f1e3e;--rouge-wash:#fbeef2;--rouge-line:#efc5d2;
 --jade:#2b7563;--jade-wash:#e8f3ef;--amber:#9a6411;--amber-wash:#fbf2e2;--danger:#b42318;--danger-wash:#fdf0ee;
 --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
 --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
 --r-lg:16px;--r:10px;--r-sm:7px;
 font-family:var(--sans);color:var(--ink);background:var(--bg);font-synthesis:none;-webkit-font-smoothing:antialiased;
}
*{box-sizing:border-box}
body{margin:0;font-size:15px;line-height:1.65;background:var(--bg)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}button:disabled{cursor:not-allowed}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--rouge);outline-offset:3px}
img,video{max-width:100%}

/* ---------- Top bar ---------- */
.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 1240px)/2));background:var(--panel);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:30px;height:30px}.brand-mark ellipse{fill:var(--rouge);opacity:.82}.brand-mark .brand-core{fill:var(--ink)}
.brand b{font-family:var(--serif);font-size:23px;font-weight:700;letter-spacing:3px}
.brand-sub{font-size:13px;color:var(--muted);padding-left:12px;margin-left:2px;border-left:1px solid var(--line)}
.prototype{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 10px}

main{max-width:1240px;margin:0 auto;padding:36px 16px 28px}

/* ---------- Heading ---------- */
.page-heading{margin:0 0 26px}
h1{font-family:var(--serif);font-size:40px;line-height:1.2;font-weight:700;letter-spacing:2px;margin:0 0 10px}
.intro{margin:0;color:var(--ink-2);font-size:15px;max-width:40em}
h2{font-size:17px;font-weight:600;margin:0}
h3{font-weight:600}

/* ---------- Project bar ---------- */
.project-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;padding:14px 18px;margin-bottom:18px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r)}
.project-toolbar>div{flex:1;min-width:220px}
.project-toolbar>div b{font-size:14px}
.project-toolbar p{font-size:13px;color:var(--muted);margin:2px 0 0}
.project-toolbar>button,#project-history-retry{border:1px solid var(--line-2);background:var(--panel);border-radius:var(--r-sm);padding:8px 16px;font-size:14px;white-space:nowrap}
.project-toolbar>button:hover{border-color:var(--ink-2)}
.project-continue{order:-1;flex-basis:100%;display:block;padding:10px 14px;border-radius:var(--r-sm);background:var(--rouge-wash);color:var(--rouge-deep);font-weight:600;font-size:14px;border:1px solid var(--rouge-line)}
.project-continue:hover{background:#f8e2e9}
.project-toolbar details{flex-basis:100%;font-size:14px}
.project-toolbar summary{cursor:pointer;color:var(--ink-2);font-size:13px;width:max-content}
#project-history{margin-top:6px}
.project-link{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-2);overflow-wrap:anywhere}
.project-link:hover{color:var(--rouge-deep)}
.project-link[aria-current]{font-weight:600;color:var(--ink)}
#project-history-empty{font-size:13px;color:var(--muted)}
#project-restore-status{display:inline-block;margin-top:8px;font-size:12px;color:var(--jade);background:var(--jade-wash);padding:3px 10px;border-radius:999px}

/* ---------- Stepper: the spine of the page ---------- */
.studio-nav{position:sticky;top:0;z-index:15;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:0 0 18px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:0 6px 18px -14px #1d213040}
.studio-nav button{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;text-align:left;border:0;border-right:1px solid var(--line);background:none;padding:14px 18px;color:var(--ink-2)}
.studio-nav button:last-child{border-right:0}
.studio-nav button:hover{background:var(--sunk)}
.step-index{grid-row:1/3;font-family:var(--serif);font-size:30px;font-weight:700;line-height:1;color:var(--faint);min-width:22px;text-align:center}
.step-name{font-size:15px;font-weight:600;color:var(--ink)}
.step-hint{font-size:12px;color:var(--muted);line-height:1.4}
.studio-nav button.step-past .step-index{color:var(--ink-2)}
.studio-nav button[aria-current=step]{background:var(--rouge-wash)}
.studio-nav button[aria-current=step] .step-index{color:var(--rouge)}
.studio-nav button[aria-current=step] .step-name{color:var(--rouge-deep)}
.studio-nav button[aria-current=step]::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--rouge)}
.studio-activity{position:sticky;top:76px;z-index:14;display:flex;align-items:center;gap:12px;margin:-6px 0 16px;padding:11px 16px;background:var(--ink);color:#fff;border-radius:var(--r);font-size:14px;font-weight:500}
.studio-activity:before{content:'';flex:none;width:15px;height:15px;border:2px solid #ffffff55;border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.studio-count{margin:0 0 14px;font-size:13px;color:var(--muted);white-space:pre-wrap}

/* ---------- Stage 1: source + replacements ---------- */
#source-settings{margin-bottom:18px}
#source-settings>summary{display:none}
#source-settings>summary::-webkit-details-marker{display:none}
.workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:18px;align-items:start}
.inputs,.preview-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg)}
.inputs{padding:24px}
.section-heading{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.step-number{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font-size:12px;font-weight:600}
.required,.optional{margin-left:auto;color:var(--muted);font-size:12px;font-weight:400}
.second{margin-top:30px}
.source-tabs{display:inline-flex;padding:3px;background:var(--sunk);border:1px solid var(--line);border-radius:999px;gap:2px;margin:0 0 14px}
.source-tabs button{border:0;background:none;border-radius:999px;color:var(--muted);padding:5px 16px;font-size:13px}
.source-tabs button[aria-selected=true]{background:var(--panel);color:var(--ink);font-weight:600;box-shadow:0 1px 3px #1d21301f}
.source-tabs button:disabled{opacity:.5}
.dropzone{position:relative;display:flex;align-items:center;flex-direction:column;text-align:center;gap:4px;padding:26px 16px 20px;border:1.5px dashed var(--line-2);border-radius:var(--r);background:var(--sunk);cursor:pointer;transition:border-color .15s,background .15s}
.dropzone:hover,.dropzone.drag{border-color:var(--rouge);background:var(--rouge-wash)}
.dropzone:focus-within,.ref-picker:focus-within{outline:2px solid var(--rouge);outline-offset:3px}
.upload-icon{width:26px;height:26px;color:var(--rouge);margin-bottom:4px}
.dropzone strong{font-size:15px;font-weight:600;max-width:100%;overflow-wrap:anywhere}
.dropzone>span{font-size:12px;color:var(--muted)}
.dropzone .local-note{color:var(--faint)}
.dropzone #video-input{position:relative;opacity:1;width:auto;max-width:100%;height:auto;pointer-events:auto;order:5;margin-top:12px;font-size:13px;color:var(--muted);cursor:pointer}
input[type=file]::file-selector-button{border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel);color:var(--ink);padding:6px 12px;margin-right:10px;font:inherit;font-size:13px;cursor:pointer}
.dropzone #video-input::file-selector-button{background:var(--ink);border-color:var(--ink);color:#fff}
input[type=file]{font-size:13px;max-width:100%}
.ref-picker input,.dropzone input:not(#video-input){position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
#share-input{width:100%;min-height:96px;resize:vertical;border:1px solid var(--line-2);border-radius:var(--r);padding:11px 13px;background:var(--panel);font-size:14px;line-height:1.7}
#share-input:focus{outline:none;border-color:var(--rouge);box-shadow:0 0 0 3px var(--rouge-wash)}
#share-input::placeholder{color:var(--faint)}
.link-label{display:block;font-size:13px;margin:0 0 6px;color:var(--ink-2)}
.link-actions{display:flex;align-items:center;gap:12px;margin-top:10px}
.link-actions p{flex:1;font-size:12px;color:var(--muted);margin:0}
.link-actions #parse-link{border:0;background:var(--ink);color:#fff;border-radius:var(--r-sm);padding:7px 16px;font-size:14px;white-space:nowrap}
.link-actions #parse-link:disabled{opacity:.5}
.import-service-note{font-size:12px;line-height:1.7;color:var(--muted)}
.parse-status{font-size:13px;line-height:1.7;padding:9px 12px;border-radius:var(--r-sm);margin-top:12px;background:var(--sunk);color:var(--ink-2)}
.parse-status.fail{background:var(--amber-wash);color:var(--amber)}
.parse-status.success{background:var(--jade-wash);color:var(--jade)}
#project-locked{margin:0 0 12px}#project-locked a{color:var(--rouge-deep);text-decoration:underline;font-weight:600}
.link-result{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:var(--r);padding:12px;margin-top:12px}
.link-result>div{min-width:0;flex:1}.link-result b{font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.link-result p{font-size:12px;color:var(--muted);margin:4px 0 0}.link-result a{font-size:13px;color:var(--rouge-deep);white-space:nowrap}
.saved-examples{font-size:12px;color:var(--muted);margin-top:12px}.saved-examples summary{cursor:pointer;width:max-content}.saved-examples p{margin:8px 0}
.saved-examples button{display:block;background:none;border:0;padding:5px 0;color:var(--ink-2);font-size:13px;text-align:left}.saved-examples button:hover{color:var(--rouge-deep)}
.source-audio{padding:14px 0 0}.source-audio label{display:grid;gap:6px;font-size:13px;color:var(--ink-2)}.source-audio p{font-size:12px;color:var(--muted);margin:6px 0 0}

.replacement{border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;transition:border-color .15s,background .15s}
.replacement.active{border-color:var(--rouge-line);background:#fffafb}
.replacement-row{display:flex;align-items:center;padding:14px;gap:12px}
.item-icon{display:grid;place-items:center;color:var(--ink-2);background:var(--sunk);width:36px;height:36px;border-radius:9px;flex-shrink:0}
.replacement.active .item-icon{color:var(--rouge);background:var(--rouge-wash)}
.item-icon svg{width:20px;height:20px}
.replacement-copy{flex:1;min-width:0}
.replacement-copy label,.replacement-copy>b{font-size:15px;font-weight:600;cursor:pointer}
.replacement-copy p{font-size:12px;color:var(--muted);margin:2px 0 0}
.person-main-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 14px 12px;font-size:14px}
.switch{width:38px;height:22px;display:block;position:relative;flex-shrink:0}
.switch input{opacity:0;position:absolute;width:100%;height:100%;margin:0;z-index:2;cursor:pointer}
.switch span{position:absolute;inset:0;background:var(--line-2);border-radius:20px;transition:.15s}
.switch span:after{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;box-shadow:0 1px 2px #1d213033;transition:.15s}
.switch input:checked+span{background:var(--rouge)}.switch input:checked+span:after{transform:translateX(16px)}
.switch input:focus-visible+span{outline:2px solid var(--rouge);outline-offset:3px}
.reference{padding:0 14px 14px}
.ref-picker{position:relative;border-top:1px solid var(--line);padding:12px 0 0;display:flex;gap:12px;align-items:center;cursor:pointer}
.ref-picker img{width:56px;height:56px;object-fit:cover;background:var(--sunk);border-radius:8px}
.ref-picker b{display:block;font-size:14px;color:var(--rouge-deep);overflow-wrap:anywhere}
.ref-picker small{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.product-note{font-size:12px;color:var(--amber);margin:10px 0 0}
.supplemental-group{margin:0}.supplemental-group>.ref-picker{margin:0}
.supplemental-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-top:10px}
.supplemental-card{display:grid;gap:6px;min-width:0;padding:8px;background:var(--sunk);border:1px solid var(--line);border-radius:var(--r-sm)}
.supplemental-card img{width:100%;height:130px;object-fit:contain}
.supplemental-card span{overflow-wrap:anywhere;font-size:12px;color:var(--ink-2)}
.supplemental-card input{width:100%;min-width:0;padding:7px 9px;border:1px solid var(--line-2);border-radius:6px;font-size:13px}
.supplemental-card button{justify-self:start;border:0;background:none;color:var(--danger);font-size:12px;padding:2px 0}
.other-requirements{margin-top:10px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
.other-requirements>summary{padding:13px 14px;cursor:pointer;font-weight:600;font-size:14px}
.other-requirements>summary .optional{float:right;font-weight:400}
.other-requirements-body{padding:0 14px 14px}
.other-requirements-body label{font-size:13px;color:var(--ink-2)}
.other-requirements-body textarea{width:100%;resize:vertical;margin-top:6px;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:10px 12px;font-size:14px}
.other-requirements-body>p{font-size:12px;line-height:1.6;color:var(--muted)}
.fixed{display:flex;align-items:center;gap:10px;padding:14px 2px 16px;color:var(--ink-2)}
.lock{width:18px;height:18px;flex:none;color:var(--muted)}
.fixed b{font-size:13px;font-weight:600}
.fixed p{font-size:12px;color:var(--muted);margin:0}
.primary{display:flex;width:100%;align-items:center;justify-content:space-between;border:0;background:var(--rouge);border-radius:var(--r);color:#fff;padding:13px 18px;font-size:16px;font-weight:600;transition:background .15s}
.primary:hover{background:var(--rouge-deep)}
.primary:disabled{background:#d6a3b2}
.demo-note{font-size:12px;color:var(--muted);margin:10px 0 0;line-height:1.6}
.error{font-size:14px;color:var(--danger);padding:10px 12px;background:var(--danger-wash);border-radius:var(--r-sm);border:1px solid #f4cfca}

/* Preview */
.preview-panel{overflow:hidden;position:sticky;top:96px}
.preview-heading{display:flex;justify-content:space-between;align-items:center;padding:16px 18px 12px}
.preview-heading h2{font-size:15px}
.preview-heading>span{font-size:12px;color:var(--muted)}
.preview-stage{margin:0 18px;aspect-ratio:4/5;max-height:62vh;position:relative;display:flex;align-items:center;justify-content:center;background:var(--sunk);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.preview-stage video{width:100%;height:100%;position:absolute;inset:0;object-fit:contain;background:#14161f}
.preview-empty{text-align:center;color:var(--muted);padding:20px}
.frame-icon{width:56px;height:56px;display:grid;place-items:center;margin:0 auto 12px;border-radius:14px;color:var(--faint);border:1px solid var(--line);background:var(--panel)}
.frame-icon svg{width:32px;height:32px}
.preview-empty p{font-size:14px;color:var(--ink-2);margin:0 0 2px}
.preview-empty>span:last-child{font-size:12px;color:var(--faint)}
.preview-caption{position:absolute;top:10px;left:10px;pointer-events:none;background:#14161fcc;color:#fff;border-radius:999px;font-size:12px;padding:2px 10px}
#generation-history{padding:0 18px 14px}
#generation-history>summary,#source-settings>summary{font-size:13px;color:var(--muted)}
#generation-history>summary{cursor:pointer;padding:12px 0 0}
.wan-tasks{padding:12px 0}.wan-tasks p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.wan-tasks video{width:100%;max-height:420px;background:#14161f;border-radius:var(--r-sm);margin-top:10px}
.wan-tasks label{display:block;margin:10px 0 4px;font-size:13px}
.wan-tasks input{width:100%;padding:9px;border:1px solid var(--line-2);border-radius:var(--r-sm)}
.wan-task-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}.wan-task-actions a{font-size:14px;color:var(--rouge-deep);font-weight:600;padding:6px 0}
.wan-tasks button:not(.text-button):not(.wan-history-item){border:0;background:var(--ink);color:#fff;padding:8px 14px;border-radius:var(--r-sm);font-size:14px}
.wan-history-item{display:block;width:100%;text-align:left;background:none;border:0;border-top:1px solid var(--line);padding:10px 0;color:var(--ink-2);font-size:13px}
#wan-history{margin-top:10px}
.flow-summary,.task-panel{padding:20px}
.flow-title{display:flex;justify-content:space-between;align-items:center;gap:10px}
.flow-title h3{font-size:15px;margin:0}.flow-title>span{font-size:12px;color:var(--muted)}
.flow-summary ol,.task-panel ol{list-style:none;padding:0;margin:18px 0 0}
.flow-summary li,.task-panel li{position:relative;display:flex;gap:12px;padding-bottom:16px}
.flow-summary li>span,.task-panel li>span{display:grid;place-items:center;width:24px;height:24px;flex:none;border:1px solid var(--line-2);border-radius:50%;font-size:12px;color:var(--muted);background:var(--panel)}
.flow-summary li b,.task-panel li b{font-size:14px;display:block}
.flow-summary li p,.task-panel li p{font-size:12px;color:var(--muted);margin:2px 0 0}
.output-note{display:flex;align-items:center;gap:12px;margin-top:16px;border-top:1px solid var(--line);padding-top:14px;color:var(--ink-2)}
.output-note p{font-size:13px;margin:0}.output-note small{font-size:12px;color:var(--muted)}
.simulation-label{font-size:12px;color:var(--amber);margin:10px 0}
progress{display:block;width:100%;height:6px;border:none;border-radius:6px;overflow:hidden;margin:14px 0;background:var(--line)}
progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--rouge)}progress::-moz-progress-bar{background:var(--rouge)}
li.current>span{border-color:var(--rouge);color:var(--rouge)}li.done>span{background:var(--jade-wash);border-color:#bfe0d5;color:var(--jade)}
.result{padding:22px;text-align:center}.result h3{font-size:16px;margin:10px 0 6px}.result p{font-size:13px;color:var(--muted)}
.result-check{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--jade-wash);color:var(--jade);margin:auto}
.result-actions{display:flex;justify-content:center;gap:12px;margin-top:14px;align-items:center;flex-wrap:wrap}
.result-actions>button:disabled{border:1px solid var(--line);background:var(--sunk);color:var(--muted);padding:8px 12px;border-radius:var(--r-sm);font-size:13px}
.text-button{border:0;background:none;color:var(--ink-2);padding:4px;font-size:13px;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2)}
.text-button:hover{color:var(--rouge-deep);text-decoration-color:currentColor}
.wan-cost,#pipeline-resume,#pipeline-resume-note,#simulate{display:none!important}
.pipeline-query-detail{padding:12px;background:var(--sunk);border-radius:var(--r-sm);margin-bottom:10px;font-size:13px}
.pipeline-query-detail p{margin:4px 0;color:var(--ink-2)}.pipeline-query-detail summary{cursor:pointer}
.pipeline-query-detail code{display:block;overflow-wrap:anywhere;user-select:all;margin-top:6px}
#pipeline-status{font-size:13px;color:var(--ink-2)}
.workflow-plan{margin:18px 0;padding:16px;border:1px solid var(--line);border-radius:var(--r);background:var(--sunk)}
.workflow-plan h3{margin:0 0 10px;font-size:15px}.workflow-plan p{line-height:1.65;white-space:pre-line;overflow-wrap:anywhere;font-size:14px}
.workflow-plan details{padding:10px 0;border-top:1px solid var(--line)}.workflow-plan summary{cursor:pointer;font-weight:600}
.workflow-plan video{width:100%;max-height:360px;margin-bottom:10px}.workflow-plan label{display:block}

/* Design requirements (stage 1) */
.design-panel{margin:18px 0 0;padding:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg)}
.design-panel>summary{padding:16px 20px;font-weight:600;cursor:pointer;font-size:15px}
.design-panel>summary::after{content:"选填 · 不改就按默认";float:right;font-weight:400;font-size:12px;color:var(--muted)}
.design-panel>:not(summary){margin-left:20px;margin-right:20px}
.design-panel>:last-child{margin-bottom:20px}
.design-panel p{font-size:13px;color:var(--muted)}
.design-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:4px}
.design-grid label{display:grid;gap:6px;font-size:14px;font-weight:600;padding:12px;border:1px solid var(--line);border-radius:var(--r);background:var(--sunk)}
.design-grid textarea{font-weight:400;font-size:13px;border:1px solid var(--line-2);border-radius:6px;padding:7px 9px;resize:vertical;background:var(--panel)}

/* ---------- Production stages ---------- */
.production{margin-top:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 24px 24px;font-size:15px}
.production>h2{display:none}
.production>section{border-top:1px solid var(--line);margin-top:20px;padding-top:18px}
.production>.milestone{position:relative;padding:20px 0 4px;margin-top:0;border:0;border-radius:0}
.production>.milestone+.milestone{border-top:1px solid var(--line)}
.milestone h3{font-family:var(--serif);font-size:28px;line-height:1.25;margin:0 0 8px;color:var(--ink);letter-spacing:1px}
.milestone-state{display:inline-block;margin:0 0 12px;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--sunk);color:var(--ink-2);border:1px solid var(--line)}
.milestone>p{color:var(--ink-2);margin:6px 0 12px;font-size:14px;max-width:46em}
.production h4{margin:14px 0 8px;font-size:15px}
.production button,.production a[download],.production a.button{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;margin:6px 8px 6px 0;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel);color:var(--ink);font-size:14px;line-height:1.4;transition:border-color .15s,background .15s}
.production button:hover:not(:disabled),.production a[download]:hover{border-color:var(--ink-2);background:var(--sunk)}
.production button:disabled{opacity:.42}
.production button.primary-action{background:var(--rouge);border-color:var(--rouge);color:#fff;font-weight:600;padding:10px 18px;font-size:15px}
.production button.primary-action:hover:not(:disabled){background:var(--rouge-deep);border-color:var(--rouge-deep)}
.production button.primary-action:disabled{opacity:.4}
.production label{display:block;margin:10px 0}
.production textarea{display:block;width:100%;max-width:760px;font-size:14px;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:10px 12px;resize:vertical;background:var(--panel)}
.production textarea:focus,.production input:focus,.production select:focus{outline:none;border-color:var(--rouge);box-shadow:0 0 0 3px var(--rouge-wash)}
.production input[type=file]{display:block;margin-top:6px}
.production select{padding:7px 10px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel)}
.milestone select{display:block;margin:8px 0}
.production-summary{font-weight:600;color:var(--ink)}
.production[aria-busy=true]{cursor:progress}
.production video{width:100%;max-height:360px;background:#14161f;border-radius:var(--r-sm)}
.production details{padding:0;margin-top:12px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
.production details>summary{cursor:pointer;padding:11px 14px;font-size:14px;color:var(--ink-2)}
.production details[open]>summary{border-bottom:1px solid var(--line)}
.production details>:not(summary){margin-left:14px;margin-right:14px}
.production details>:last-child{margin-bottom:14px}
.production details details{background:var(--sunk)}
.production-details>summary{font-size:13px;color:var(--muted)}
.production pre,.milestone pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;font-size:13px;background:var(--sunk);padding:12px;border-radius:var(--r-sm)}
.segment-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.segment-grid article{padding:12px;border:1px solid var(--line);border-radius:var(--r)}
.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:var(--r)}
.production table{width:100%;border-collapse:collapse;font-size:13px}
.production th,.production td{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top;min-width:110px;white-space:pre-line}
.production th{background:var(--sunk);font-weight:600;position:sticky;top:0}
.production td img{width:100px;max-height:160px;object-fit:contain;border-radius:4px}
.calibration-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.calibration-pair figure{margin:0}
.calibration-pair img{max-width:100%;max-height:480px;object-fit:contain;border-radius:var(--r-sm)}
.calibration-pair figcaption{font-size:12px;color:var(--muted);margin-top:6px}
.ip-preview{width:180px;max-height:280px;object-fit:contain}
.hero-sample{display:block;width:auto;max-width:100%;max-height:520px;border-radius:var(--r);margin:16px 0;box-shadow:0 12px 30px -18px #1d213066}
.review-summary{padding:12px 14px;margin:12px 0;border-radius:var(--r);background:var(--sunk);border:1px solid var(--line);font-size:13px;line-height:1.65;max-width:760px}
.review-summary strong{display:block;color:var(--ink);font-size:14px}
.review-summary p{margin:6px 0;color:var(--ink-2)}
.shot-review-status strong{display:block;color:var(--ink);margin-bottom:6px}
.shot-review-status p{font-size:13px}
.delivery-review-table .shot-review-status{min-width:210px;width:230px}
.shot-review-status textarea{min-width:180px;font-size:13px}
.delivery-review-table td:nth-child(4){min-width:300px;max-width:560px}
.delivery-review-table td img{width:120px;max-height:210px}
.delivery-inspection{margin-top:12px}
.image-recovery{padding:10px 12px;background:var(--amber-wash);border-radius:var(--r-sm);color:var(--amber);font-size:13px}
.production-image-progress{padding:12px 14px;background:var(--sunk);border-radius:var(--r);font-size:13px}

/* Video stage */
.video-segment-nav,.reference-segments{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.video-segment-nav button[aria-pressed=true],.reference-segments button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.video-settings{display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;margin:12px 0}
.video-settings label{display:flex;align-items:center;gap:8px;margin:0}
.video-settings p{flex-basis:100%;margin:0;font-size:13px;color:var(--muted)}
.video-settings input[type=checkbox]{width:17px;height:17px;accent-color:var(--rouge)}
.video-result{display:block;width:100%;max-width:420px;max-height:560px;margin:14px 0;background:#14161f;border-radius:var(--r)}
.video-spec-tags{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.video-spec-tag{padding:3px 10px;border-radius:999px;font-size:12px;font-weight:500;background:var(--sunk);border:1px solid var(--line);color:var(--ink-2)}
.milestone>label:has(textarea){display:block;margin:14px 0;font-size:14px}
.milestone>label textarea{margin-top:6px}
.milestone details video{max-width:320px;max-height:360px;display:block}
.edit-timeline{padding:0!important;background:var(--panel)}
.edit-timeline>summary{font-weight:600}
.edit-row{display:flex;gap:10px;align-items:end;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid var(--line)}
.edit-row label{display:grid;gap:4px;margin:0;font-size:12px;color:var(--muted)}
.edit-row input,.edit-timeline input[type=number]{width:130px;padding:7px 9px;border:1px solid var(--line-2);border-radius:6px}
.edit-timeline>label{display:block;margin:10px 0}
.submitted-prompt-record textarea{font-size:12px}

/* Dialogs */
.shot-question-dialog{width:min(580px,92vw);max-height:88vh;overflow:auto;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;color:var(--ink);box-shadow:0 30px 80px -20px #1d213066}
.shot-question-dialog::backdrop,.image-lightbox::backdrop{background:#14161fb3}
.shot-question-dialog>img{display:block;max-width:100%;max-height:260px;object-fit:contain;margin:12px auto;border-radius:var(--r-sm)}
.shot-question-dialog .question-text{padding:12px;background:var(--rouge-wash);border-radius:var(--r-sm);line-height:1.65}
.shot-question-dialog label{display:block}.shot-question-dialog textarea{width:100%;min-height:80px;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:8px}
.shot-question-dialog>p{font-size:14px;line-height:1.6}
.shot-question-dialog button{border:1px solid var(--line-2);background:var(--panel);border-radius:var(--r-sm);padding:8px 14px;margin:6px 8px 0 0}
.zoomable{cursor:zoom-in}
.image-lightbox{border:0;border-radius:var(--r-lg);padding:14px;max-width:95vw;max-height:95vh}
.image-lightbox img{display:block;max-height:82vh;max-width:90vw;object-fit:contain}
.image-lightbox button{display:block;margin-left:auto;padding:8px 16px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel)}

/* ---------- Advanced / maintenance (quiet) ---------- */
.node-workspace,.studio-maintenance{margin:18px 0 0;padding:0;background:none;border:1px dashed var(--line-2);border-radius:var(--r);color:var(--ink-2)}
.node-workspace>summary,.studio-maintenance>summary{padding:11px 16px;cursor:pointer;font-size:13px;font-weight:500;color:var(--muted)}
.node-workspace>:not(summary),.studio-maintenance>:not(summary){margin-left:16px;margin-right:16px}
.node-workspace>:last-child,.studio-maintenance>:last-child{margin-bottom:16px}
.node-intro{max-width:52em;line-height:1.7;font-size:13px}
.node-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px;margin:14px 0}
.node-card{padding:14px;border:1px solid var(--line);border-radius:var(--r);min-width:0;background:var(--panel)}
.node-card h4{margin:10px 0 6px;font-size:14px}.node-card p{font-size:12px;line-height:1.6;overflow-wrap:anywhere}
.node-card small{display:block;margin:6px 0;color:var(--muted)}
.node-state{font-size:12px;font-weight:600;color:var(--ink-2)}
.node-done{border-left:3px solid var(--jade)}.node-ready{border-left:3px solid var(--ink-2)}.node-manual{border-left:3px solid var(--amber)}.node-blocked{opacity:.75}
.node-card button,.node-comfy button{padding:7px 12px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel);font-size:13px}
.node-card button:disabled,.node-comfy button:disabled{opacity:.45}
.node-comfy{border-top:1px solid var(--line);margin-top:20px;padding-top:6px}.node-comfy p{line-height:1.7;font-size:13px}
.node-comfy-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:10px 0}.node-comfy a{color:var(--rouge-deep);text-decoration:underline}
.wan-settings{border:1px solid var(--line);border-radius:var(--r);padding:14px;margin:12px 0;background:var(--panel)}
.wan-settings summary{font-weight:600;cursor:pointer;font-size:14px}
.wan-settings summary span{float:right;font-size:13px;color:var(--muted);font-weight:400}
.wan-settings p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.wan-settings label{display:block;margin:10px 0 4px;font-size:13px}
.wan-settings input{width:100%;padding:9px;border:1px solid var(--line-2);border-radius:var(--r-sm);font-size:14px;min-width:0}
.wan-settings .import-consent{display:flex;gap:8px;align-items:flex-start;line-height:1.7}.wan-settings .import-consent input{width:16px;height:16px;flex:none;margin-top:4px}
.wan-settings-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.wan-settings button:not(.text-button){border:0;background:var(--ink);color:#fff;padding:8px 14px;border-radius:var(--r-sm);font-size:14px}
.wan-settings button:disabled,.wan-tasks button:disabled{opacity:.5;cursor:wait}

/* Reference-segment panel (legacy direct mode) */
.reference-panel{margin:18px 0}.reference-panel summary{cursor:pointer;font-weight:600;font-size:17px}
.reference-panel form>label{display:block;margin:14px 0 6px;font-size:14px}
.reference-panel textarea{display:block;width:100%;padding:10px 12px;border:1px solid var(--line-2);border-radius:var(--r-sm);resize:vertical}
.reference-panel select,.reference-panel input[type=number]{padding:7px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--panel)}
.reference-panel input[type=number]{width:90px}
.reference-panel button,.reference-panel a[download]{display:inline-block;margin:10px 8px 10px 0;padding:8px 14px;background:var(--panel);border:1px solid var(--line-2);border-radius:var(--r-sm)}
.reference-panel button:disabled{opacity:.5}.reference-panel video{display:block;margin:14px 0}
.reference-controls{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}

footer{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--faint);margin-top:28px;padding-top:16px;border-top:1px solid var(--line)}
form.busy .dropzone,form.busy .ref-picker{opacity:.6;pointer-events:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
 .workspace{grid-template-columns:1fr}
 .preview-panel{position:static}
 .preview-stage{aspect-ratio:16/10}
}
@media(max-width:720px){
 .topbar{height:56px}.brand-sub{display:none}
 main{padding:24px 16px}
 h1{font-size:30px;letter-spacing:1px}
 .inputs{padding:18px 16px}
 .studio-nav{grid-template-columns:repeat(4,1fr);border-radius:0;margin-left:-16px;margin-right:-16px;border-left:0;border-right:0}
 .studio-nav button{grid-template-columns:1fr;grid-template-rows:auto auto;justify-items:center;text-align:center;padding:10px 4px;row-gap:2px}
 .step-index{grid-row:auto;font-size:22px}
 .step-name{font-size:12px}
 .step-hint{display:none}
 .studio-activity{top:66px}
 .production{padding:4px 16px 18px}
 .milestone h3{font-size:24px}
 .calibration-pair,.design-grid{grid-template-columns:1fr}
 .design-panel>summary::after{display:none}
 .link-actions{flex-wrap:wrap}.link-actions p{flex-basis:100%}
 .link-result{align-items:flex-start;flex-direction:column}
 .wan-settings summary span{float:none;display:block;margin-top:4px}
 footer{flex-direction:column;gap:4px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}