:root {
  --vt-bg: var(--d-bg,#0b101b);
  --vt-panel: var(--d-bg,#0b101b);
  --vt-line: var(--d-border,#2c3446);
  --vt-muted: var(--d-text-3,#8492ad);
  --vt-text: var(--c-primary-soft,#eef4ff);
}
* { box-sizing: border-box; }
body.vt-layout {
  margin: 0;
  background: radial-gradient(circle at 58% 24%, #10142c 0, var(--d-bg,#0b101b) 42%, var(--d-bg,#0b101b) 100%);
  color: var(--vt-text);
  font: 14px/1.55 Pretendard, "Noto Sans KR", Inter, "Malgun Gothic", sans-serif;
}
.vt-shell { min-height: 100vh; }
.vt-top {
  height: 64px;
  border-bottom: 1px solid var(--vt-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: #080b11e8;
  position: sticky;
  top: 0;
  z-index: 10;
}
.vt-top .site-logo img { height: 33px; width: auto; }
.vt-top-nav { display: flex; gap: 24px; }
.vt-top-nav a { color: var(--d-text-2,#aab4ca); text-decoration: none; font-size: 13px; font-weight: 700; }
.vt-top-nav a.active { color: #fff; }
.vt-top-actions { display: flex; align-items: center; gap: 9px; }
.chip {
  border: 1px solid #253453;
  background: var(--d-surface,#121725);
  color: #98b6ff;
  border-radius: 10px;
  padding: 8px 13px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.chip.upgrade {
  border: 0;
  background: linear-gradient(100deg, var(--c-violet,#6a4cf0), #426eff);
  color: #fff;
}
.vt-layout-grid {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr) 310px;
  min-height: calc(100vh - 64px);
}
.vt-side {
  border-right: 1px solid var(--vt-line);
  background: var(--d-bg,#0b101b);
  padding: 10px 9px;
  display: flex;
  flex-direction: column;
}
.vt-side .new {
  background: var(--d-border,#2c3446);
  border: 1px solid var(--c-text-2,#4e5968);
  color: #fff;
  border-radius: 9px;
  padding: 10px;
  font-weight: 700;
  cursor: pointer;
}
.vt-side a {
  padding: 11px 9px;
  color: var(--c-primary-tint,#dbe4ff);
  text-decoration: none;
  font-size: 12px;
  display: block;
}
.vt-side a.active { color: var(--d-link,#8ea8ff); background: var(--c-navy,#172140); border-radius: 8px; }
.vt-sidefoot {
  margin-top: auto;
  border: 1px solid #66572b;
  border-radius: 9px;
  padding: 10px;
  color: var(--c-primary-soft,#eef4ff);
  font-size: 11px;
}
.vt-sidefoot b { display: block; margin-bottom: 4px; }
.vt-work { min-width: 0; }
.vt-workbar {
  height: 64px;
  border-bottom: 1px solid var(--vt-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: var(--d-bg,#0b101b);
}
.vt-workbar h1 { margin: 0; font-size: 15px; }
.vt-back, .vt-export {
  border: 1px solid #31405c;
  border-radius: 9px;
  background: var(--d-surface,#121725);
  color: var(--c-primary-tint,#dbe4ff);
  padding: 9px 13px;
  cursor: pointer;
  font: inherit;
}
.vt-export {
  background: linear-gradient(100deg, var(--c-violet,#6a4cf0), #3c75ff);
  border: 0;
  font-weight: 800;
  color: #fff;
}
.vt-export:disabled { opacity: 0.45; cursor: not-allowed; filter: grayscale(0.2); }
.vt-stage {
  padding: 28px;
  display: grid;
  place-items: center;
  min-height: calc(100vh - 128px);
}
.vt-viewer {
  width: min(1040px, 100%);
  aspect-ratio: 16/9;
  border: 1px solid var(--d-border,#2c3446);
  border-radius: 16px;
  background: radial-gradient(ellipse at 25% 27%, #c7975e55 0 7%, transparent 19%),
    linear-gradient(117deg, var(--d-bg,#0b101b) 0 32%, #1c101d 43%, var(--d-bg,#0b101b) 56%, var(--d-surface,#121725) 100%);
  box-shadow: 0 28px 100px #0008;
  position: relative;
  overflow: hidden;
  touch-action: none;
}
.vt-viewer video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--d-bg,#0b101b);
  display: none;
}
.vt-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--d-text-2,#aab4ca);
}
.vt-empty strong { display: block; color: var(--c-primary-soft,#eef4ff); font-size: 17px; margin-bottom: 5px; }
.vt-load + .vt-load { margin-left: 8px; }
.vt-cardbody > .vt-load { margin-top: 0; margin-bottom: 12px; }
.vt-load {
  margin-top: 18px;
  padding: 11px 18px;
  border: 1px solid var(--d-primary,#7094ff);
  border-radius: 9px;
  background: var(--d-surface,#121725);
  color: var(--c-primary-soft,#eef4ff);
  font-weight: 800;
  cursor: pointer;
}
.vt-badge {
  position: absolute;
  left: 16px;
  top: 14px;
  background: var(--c-navy,#172140);
  color: var(--d-link,#8ea8ff);
  padding: 5px 9px;
  border-radius: 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
  z-index: 3;
}
.vt-selection {
  position: absolute;
  border: 2px solid #62d6ff;
  background: #36bde52c;
  box-shadow: 0 0 0 9999px #0004;
  display: none;
  z-index: 4;
  pointer-events: none;
}
.vt-selection::after {
  content: "워터마크 영역";
  position: absolute;
  left: -2px;
  top: -25px;
  background: #42bfe5;
  color: var(--d-bg,#0b101b);
  border-radius: 5px;
  padding: 3px 7px;
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
}
.vt-timeline {
  width: min(1040px, 100%);
  margin-top: 18px;
  background: var(--d-bg,#0b101b);
  border: 1px solid var(--vt-line);
  border-radius: 14px;
  padding: 15px;
}
.vt-controls { display: flex; gap: 10px; align-items: center; }
.vt-play {
  width: 35px;
  height: 35px;
  border: 0;
  border-radius: 50%;
  background: var(--c-primary-tint,#dbe4ff);
  color: var(--d-surface,#121725);
  cursor: pointer;
}
.vt-time { font-weight: 800; }
.vt-track {
  height: 54px;
  border-radius: 7px;
  background: var(--d-surface-2,#1d2230);
  margin-top: 13px;
  position: relative;
}
.vt-track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #ff773f;
}
.vt-tools {
  border-left: 1px solid var(--vt-line);
  background: var(--d-bg,#0b101b);
  padding: 20px 15px;
  overflow: auto;
}
.vt-tools h2 {
  font-size: 13px;
  color: var(--d-primary,#7094ff);
  letter-spacing: 0.5px;
  margin: 3px 3px 13px;
}
.vt-card {
  border: 1px solid var(--d-border,#2c3446);
  border-radius: 13px;
  background: var(--d-surface,#121725);
  margin-bottom: 12px;
  overflow: hidden;
}
.vt-card.active { border-color: #5d75ff; box-shadow: 0 0 0 1px #5d75ff55; }
.vt-cardhead {
  width: 100%;
  border: 0;
  background: var(--d-surface,#121725);
  color: var(--c-primary-soft,#eef4ff);
  padding: 14px 15px;
  text-align: left;
  font-weight: 800;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  font: inherit;
}
.vt-cardbody { padding: 14px 15px; border-top: 1px solid var(--d-border,#2c3446); }
.vt-cardbody[hidden] { display: none; }
.vt-desc { color: var(--d-text-3,#8492ad); font-size: 11px; margin: 0 0 13px; line-height: 1.55; }
.vt-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 10px 0;
  color: var(--c-gray-300,#c5cbe0);
  font-size: 12px;
  gap: 10px;
}
.vt-option select {
  background: var(--d-bg,#0b101b);
  border: 1px solid var(--d-border,#2c3446);
  color: #fff;
  border-radius: 7px;
  padding: 7px;
  font: inherit;
}
.vt-radio { display: flex; gap: 13px; margin: 9px 0; flex-wrap: wrap; }
.vt-radio label { font-size: 12px; cursor: pointer; }
.vt-coord { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.vt-coord label { font-size: 10px; color: var(--d-text-3,#8492ad); }
.vt-coord input {
  width: 100%;
  margin-top: 3px;
  background: var(--d-bg,#0b101b);
  border: 1px solid var(--d-border,#2c3446);
  color: var(--c-primary-tint,#dbe4ff);
  padding: 7px;
  border-radius: 6px;
  font: inherit;
}
.vt-action {
  width: 100%;
  border: 0;
  border-radius: 9px;
  background: linear-gradient(100deg, #744eff, var(--c-primary,#1b64da));
  color: #fff;
  padding: 11px;
  font-weight: 900;
  margin-top: 13px;
  cursor: pointer;
  font: inherit;
}
.vt-action:disabled { filter: grayscale(1); opacity: 0.45; cursor: not-allowed; }
.vt-notice { font-size: 10px; color: var(--d-text-3,#8492ad); margin: 10px 0 0; line-height: 1.5; }
.vt-status {
  margin-top: 10px;
  border-radius: 8px;
  padding: 9px;
  background: var(--d-bg,#0b101b);
  color: #7edbff;
  font-size: 11px;
  display: none;
}
.vt-status.show { display: block; }
.vt-asset-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: #0009;
  padding: 20px;
}
.vt-asset-modal[hidden] { display: none; }
.vt-asset-panel {
  width: min(520px, 100%);
  max-height: 70vh;
  overflow: auto;
  background: var(--d-surface,#121725);
  border: 1px solid var(--d-border,#2c3446);
  border-radius: 14px;
  padding: 16px;
}
.vt-asset-item {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid var(--d-border,#2c3446);
  background: var(--d-surface,#121725);
  color: var(--c-primary-tint,#dbe4ff);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
  cursor: pointer;
  font: inherit;
}
.vt-asset-item:hover { border-color: #5d75ff; }
.vt-asset-item video { display: block; width: 100%; max-height: 92px; object-fit: cover; border-radius: 8px; margin-bottom: 6px; background: var(--d-bg,#0b101b); }
.vt-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--d-surface-2,#1d2230);
  color: #fff;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 13px;
  z-index: 60;
  display: none;
}
.vt-toast.show { display: block; }
@media (max-width: 1050px) {
  .vt-layout-grid { grid-template-columns: 76px 1fr 285px; }
  .vt-side a span, .vt-side .new span, .vt-sidefoot { display: none; }
  .vt-top-nav { gap: 14px; }
  .vt-stage { padding: 18px; }
}
@media (max-width: 760px) {
  .vt-top-nav, .vt-side { display: none; }
  .vt-layout-grid { display: block; }
  .vt-tools { border-left: 0; border-top: 1px solid var(--vt-line); }
  .vt-stage { min-height: auto; }
  .vt-workbar { height: auto; padding: 12px; flex-wrap: wrap; gap: 10px; }
}
.iu-image-picker #assetList{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-content:start}.iu-image-picker .vt-asset-item{min-width:0;padding:7px;margin:0;overflow:hidden}.iu-image-picker .vt-asset-item img{display:block;width:100%;height:112px;object-fit:contain;border-radius:6px;background:#0b101b}.iu-image-picker .vt-asset-item span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;margin-top:5px}.iu-image-picker #assetList>p{grid-column:1/-1}.iu-image-picker>div{scrollbar-color:#07080a #101521;scrollbar-width:thin}

/* Upscale progress popup (centre modal) — 20261101 */
.vt-up-modal { position: fixed; inset: 0; z-index: 55; display: grid; place-items: center; background: #000a; padding: 20px; }
.vt-up-modal[hidden] { display: none; }
.vt-up-panel { width: min(460px, 100%); background: var(--d-surface,#121725); border: 1px solid var(--d-border,#2c3446); border-radius: 16px; padding: 22px 22px 18px; box-shadow: 0 24px 60px #0008; color: var(--c-primary-soft,#eef4ff); }
.vt-up-panel h3 { margin: 0 0 14px; font-size: 17px; }
.vt-up-steps { list-style: none; display: flex; gap: 6px; margin: 0 0 14px; padding: 0; font-size: 12px; }
.vt-up-steps li { flex: 1; text-align: center; padding: 6px 4px; border-radius: 8px; background: var(--d-bg,#0b101b); color: var(--d-text-3,#8492ad); border: 1px solid var(--d-border,#2c3446); }
.vt-up-steps li.on { color: #fff; border-color: #6a7dff; background: #1b2350; font-weight: 800; }
.vt-up-steps li.ok { color: #8ff0c0; border-color: #2c6b52; }
.vt-up-steps li.bad { color: #ffb4b4; border-color: #7a3340; background: #2a1219; font-weight: 800; }
.vt-up-bar { height: 12px; border-radius: 999px; background: var(--d-bg,#0b101b); border: 1px solid var(--d-border,#2c3446); overflow: hidden; }
.vt-up-fill { display: block; height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, #704bff, #287cf0); transition: width .8s ease; }
.vt-up-modal.is-done .vt-up-fill { background: linear-gradient(90deg, #2bbf86, #3ad6a0); }
.vt-up-modal.is-failed .vt-up-fill { background: #c2414f; }
.vt-up-meta { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; font-size: 14px; }
.vt-up-pct { color: var(--d-text-2,#aab4ca); font-size: 12px; }
.vt-up-elapsed { margin: 4px 0 0; color: var(--d-text-3,#8492ad); font-size: 12px; }
.vt-up-guide { margin: 12px 0 0; font-size: 13px; line-height: 1.6; color: var(--d-text-2,#c8d1e4); }
.vt-up-server { margin: 6px 0 0; font-size: 11px; color: var(--d-text-3,#8492ad); min-height: 0; }
.vt-up-server:empty { display: none; }
.vt-up-actions { display: flex; justify-content: flex-end; margin-top: 16px; }
.vt-up-close { border: 1px solid var(--d-border,#2c3446); background: var(--d-bg,#0b101b); color: var(--c-primary-tint,#dbe4ff); border-radius: 9px; padding: 9px 14px; font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.vt-up-modal.is-done .vt-up-close { background: linear-gradient(100deg, #6a4cf0, #426eff); color: #fff; border-color: transparent; }
#upStatus.show { cursor: pointer; }