:root{color-scheme:dark;--bg:#0d1018;--panel:#171c28;--inset:#10141e;--line:#2b3447;--text:#eff3ff;--muted:#97a5bd;--purple:#8465ff;--green:#42d7a2;--cyan:#62d8ed;--red:#ff8c98}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 "Segoe UI","Microsoft YaHei",sans-serif}
a{color:var(--cyan);text-decoration:none}
button,input,select{font:inherit}
button,.button{border:1px solid var(--line);border-radius:9px;background:#202838;color:var(--text);padding:10px 15px;cursor:pointer;transition:background .15s,border .15s}
button:hover,.button:hover{background:#2d3850;border-color:#75839e}
button:disabled{opacity:.45;cursor:not-allowed}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
input:not([type=checkbox]):not([type=radio]):not([type=range]),select{display:block;background:var(--inset);border:1px solid #354158;border-radius:8px;color:var(--text);padding:10px 12px;width:100%;min-width:0;margin-top:6px}
input[type=checkbox],input[type=radio]{accent-color:var(--purple);width:18px;height:18px;flex:none}
input[type=range]{width:100%;accent-color:var(--purple)}
h1{font-size:28px;margin:8px 0 20px;letter-spacing:-.7px}
h2{font-size:17px;margin:0 0 12px;font-weight:650}
h3{font-size:20px}
.topbar{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border-bottom:1px solid var(--line);background:#111622;gap:24px}
.brand{display:flex;gap:12px;align-items:center;color:var(--text);font-size:22px;font-weight:750;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;background:var(--purple);color:white;border-radius:10px;font-size:18px;transform:rotate(-5deg)}
.version{font-size:12px;font-weight:500;background:#2c264f;color:#cdbdff;border-radius:20px;padding:3px 10px}
.topbar nav{display:flex;align-items:center;gap:20px;font-size:14px}
.topbar nav a{color:var(--muted)}
.topbar form{margin:0}
.account{max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-left:1px solid var(--line);padding-left:20px}
.quiet{background:transparent;border-color:transparent;padding:6px 10px}
.primary{background:var(--purple);border-color:var(--purple);color:white;font-weight:650}
.primary:hover{background:#997fff}
.success{background:var(--green);border-color:var(--green);color:#06241b;font-weight:750}
.success:hover{background:#71e9bc}
.panel{min-width:0;max-width:100%;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.heading{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.heading h2{margin:0}
.muted{color:var(--muted)}
.small,.help{font-size:13px}
.help{display:block;color:var(--muted);margin:7px 0}
.help ul{padding-left:18px}
.small-button{font-size:13px;padding:5px 9px}
.full{width:100%}
.stack{display:grid;gap:16px}
.stack label{display:block;font-size:14px}
.pair{display:flex;gap:8px}
.pair>*{flex:1;min-width:0}
.section-line{height:1px;background:var(--line);margin:20px 0}
.auth-panel{width:min(470px,calc(100% - 32px));margin:70px auto;padding:32px;box-shadow:0 24px 90px #0005}
.auth-panel h1{margin-bottom:12px}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--cyan)}
.errorlist{color:var(--red);font-size:14px;padding-left:20px}
.auth-panel .primary{margin-top:8px}
.workspace{display:grid;grid-template-columns:250px minmax(400px,1fr) 310px;gap:16px;padding:22px;max-width:2100px;margin:auto;align-items:start}
.library{min-height:0;height:calc(100dvh - 122px);max-height:1100px;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-gutter:stable}
.library label{font-size:14px}
.library .pair{margin-top:10px}
.library .pair button{padding:9px 5px;font-size:14px}
.asset-list{display:grid;gap:8px;margin-top:14px}
.asset-row{display:flex;gap:8px;align-items:center;background:var(--inset);padding:11px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.asset-info{min-width:0;flex:1}
.asset-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.asset-meta{color:var(--muted);font-size:12px;margin-top:3px}
.editing{min-width:0;display:grid;grid-template-columns:minmax(0,1fr);gap:16px}

/* Constrain nested grid items; the filmstrip must scroll, never size the player. */
.editing>*{min-width:0}
.preview{padding:18px 20px}
.video-stage{width:100%;min-width:0;height:clamp(300px,calc(100dvh - 425px),560px);display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr);place-items:center;background:#090c13;border-radius:9px;overflow:hidden}
.video-stage video{display:block;min-width:0;min-height:0;width:100%;max-width:100%;height:100%;max-height:100%;object-fit:contain}
.preview-empty{text-align:center;padding:25px;color:var(--muted)}
.preview-empty h3{color:#d5def0;font-weight:500}
.preview-empty p{max-width:310px;font-size:14px}
.play-outline{font-size:58px;font-weight:200;color:#7866bb}
.storyboard{padding:16px 16px 10px}
.storyboard-track{width:100%;max-width:100%;overscroll-behavior-x:contain;display:flex;gap:12px;overflow-x:auto;min-height:175px;scrollbar-width:auto;scrollbar-color:#8798bf #101625;padding-bottom:17px;scroll-behavior:smooth}
.storyboard-track::-webkit-scrollbar{height:19px}
.storyboard-track::-webkit-scrollbar-track{background:#0e1421;border-radius:12px}
.storyboard-track::-webkit-scrollbar-thumb{background:#8393b5;border:3px solid #0e1421;border-radius:12px;min-width:70px}
.storyboard-track::-webkit-scrollbar-thumb:hover{background:#b1c3e9}
.storyboard-track:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.shot{display:flex;flex-direction:column;min-width:0;flex:0 0 158px;border:1px solid #38425a;border-top:3px solid var(--purple);border-radius:10px;background:#111827;overflow:hidden;cursor:grab;position:relative}
.shot.dragging{opacity:.45}
.shot img{width:100%;height:84px;object-fit:cover;display:block}
.shot-number{position:absolute;top:7px;left:7px;background:#10141cd9;padding:0 6px;border-radius:4px;font-size:13px}
.shot-content{display:flex;flex:1;flex-direction:column;min-width:0;padding:9px}
.shot-title{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.shot-meta{font-size:12px;color:var(--muted);margin-top:4px}
.shot-landing{font-size:12px;color:var(--cyan);margin-top:4px}
.shot-move{display:flex;justify-content:space-between;margin-top:auto;padding-top:7px}
.shot-move button{padding:1px 12px;font-size:13px}
.reorder-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:12px 0;font-size:14px}
.reorder-actions span{margin-right:auto}
.controls{display:grid;gap:12px;font-size:14px}

.controls>*,.admin-grid>*,.user-form>*{min-width:0}

.controls>.small{margin:0;overflow-wrap:anywhere}

#job-message{overflow-wrap:anywhere}

#edit-notices{overflow-wrap:anywhere}
.controls h2{margin:0}
.rule-badge{font-size:13px;color:var(--cyan);background:#15303b;padding:9px;border-radius:7px;border-left:3px solid var(--cyan)}
fieldset{border:1px solid var(--line);border-radius:10px;padding:12px;min-width:0}
legend{font-size:14px;color:#cbd4e7;padding:0 5px}
fieldset label{font-size:14px}
.segmented{display:flex;gap:8px;margin-bottom:16px}
.segmented label{flex:1;display:flex;align-items:center;justify-content:center;gap:4px;padding:8px 3px;background:#242c3d;border-radius:7px;font-size:14px}
.segmented input{width:14px;height:14px}
.music-name{font-size:14px;overflow-wrap:anywhere;margin:0 0 10px}
.export-profile{display:flex;justify-content:space-between;gap:6px}
.main-actions{display:grid;gap:9px}
.main-actions button{min-height:45px}
.job-status{border-top:1px solid var(--line);padding-top:16px}
#job-label{font-size:14px}
progress{height:9px;width:100%;accent-color:var(--purple);border:none;border-radius:8px;margin-top:9px;overflow:hidden}
progress::-webkit-progress-bar{background:#30394a}
progress::-webkit-progress-value{background:var(--purple)}
.empty-note{font-size:14px;color:var(--muted);padding:15px 0}
.download{display:block;text-align:center;border:1px solid var(--green);border-radius:8px;padding:10px;color:var(--green);cursor:pointer}
dialog{width:min(510px,calc(100% - 32px));background:var(--panel);border:1px solid #536079;border-radius:15px;color:var(--text);padding:24px;box-shadow:0 20px 100px #000a}
dialog::backdrop{background:#020610b9}
dialog label{display:block;margin:15px 0;font-size:14px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#2b3550;border:1px solid #7085b3;border-radius:10px;padding:12px 22px;max-width:min(650px,90vw);z-index:20;box-shadow:0 10px 35px #0008}
.toast.error{border-color:var(--red);background:#432631}
.admin-shell{max-width:1270px;padding:32px;margin:auto}
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.admin-grid .panel{padding:24px}
.admin-grid .muted{font-size:14px}
.check{display:flex!important;align-items:center;gap:9px}
.note{padding:16px;border:1px solid #365364;border-radius:9px;background:#152c35;color:#a9d4e2;font-size:14px}
.users-panel{grid-column:1/-1}
.user-form{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:14px;align-items:end;margin:22px 0}
.user-form label{font-size:14px}
.table-scroll{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:500}
td button{font-size:13px;padding:5px 10px;margin-right:8px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
[hidden]{display:none!important}
/* Keep all four actions exposed on shorter desktop windows. */
@media(min-width:1151px) and (max-height:900px){
  .controls{gap:10px}
  .controls fieldset{padding:10px}
  .controls .segmented{margin-bottom:10px}
  .controls .job-status{padding-top:12px}
  #job-message{margin:8px 0}
  .main-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
  .main-actions button{font-size:13px;padding:8px 5px;min-width:0}
}
@media(min-width:1700px){.workspace{grid-template-columns:285px minmax(600px,1fr) 335px}
.video-stage{height:clamp(300px,calc(100dvh - 425px),590px)}
.shot{flex-basis:175px}
}
@media(max-width:1150px){.workspace{grid-template-columns:210px minmax(330px,1fr)}
.library .pair button{font-size:13px;padding:8px 2px;white-space:nowrap}
.controls{grid-column:1/-1;grid-template-columns:1fr 1fr}
.controls>h2,.controls>.rule-badge,.main-actions,.controls>.small,.job-status{grid-column:1/-1}
.main-actions{grid-template-columns:1fr 1fr}
.library{max-height:760px}
.video-stage{height:410px;min-height:330px}
.admin-shell{padding:20px}
.topbar{padding:0 18px}
.topbar nav{gap:10px}
.account{display:none}
}
@media(max-width:700px){.workspace{display:flex;flex-direction:column;padding:12px}
.library,.editing,.controls{width:100%}
.library{min-height:0;height:auto;max-height:420px}
.topbar{height:auto;min-height:72px;flex-wrap:wrap;padding:12px;gap:10px}
.topbar nav{flex-wrap:wrap}
.version{display:none}
.controls{grid-template-columns:1fr}
.controls>*{grid-column:1}
.main-actions{grid-template-columns:1fr}
.admin-grid{grid-template-columns:1fr}
.user-form{grid-template-columns:1fr}
.video-stage{height:400px}
.storyboard .heading{align-items:start;flex-direction:column}
}