/* ============================================================
   NCT Video Studio — CapCut-inspired layout
   Build: NCT-VIDEO-STUDIO-PHASE1-20260930-V1
   ============================================================ */

.vs-body,
.vs-app,
.vs-app * {
  box-sizing: border-box;
}

.vs-app {
  --vs-bg: #0d0d12;
  --vs-panel: #16161d;
  --vs-panel-2: #1c1c25;
  --vs-panel-3: #23232e;
  --vs-border: #2a2a35;
  --vs-text: #e8e8ea;
  --vs-text-2: #a0a0ac;
  --vs-muted: #6f6f7a;
  --vs-burg: #a7475d;
  --vs-burg-2: #c96b80;
  --vs-accent: #4f8cff;
  --vs-green: #35d07f;
  --vs-red: #ff4d67;
  --vs-yellow: #ffcf6e;
  --vs-track-video: #3b6ea5;
  --vs-track-text: #9b59b6;
  --vs-track-audio: #35b58c;
  --vs-h: 44px;
  --vs-tl: 280px;
  display: grid;
  grid-template-rows: var(--vs-h) 1fr var(--vs-tl);
  grid-template-columns: 100%;
  height: calc(100vh - 0px);
  min-height: 620px;
  background: var(--vs-bg);
  color: var(--vs-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  overflow: hidden;
}

@media (max-width: 900px) {
  .vs-app {
    grid-template-rows: var(--vs-h) auto auto;
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }
}

/* ============================ TOP BAR ============================ */
.vs-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--vs-panel);
  border-bottom: 1px solid var(--vs-border);
  height: var(--vs-h);
  gap: 12px;
}

.vs-topbar-left,
.vs-topbar-center,
.vs-topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.vs-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--vs-text);
  font-weight: 800;
  font-size: 13px;
}
.vs-brand-mark {
  background: linear-gradient(135deg, var(--vs-burg), #7c2d42);
  color: #fff;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  letter-spacing: .06em;
}
.vs-brand-name { font-size: 13px; }

.vs-save-state {
  color: var(--vs-muted);
  font-size: 11.5px;
  font-weight: 600;
  margin-left: 4px;
}

.vs-tb-icon {
  width: 30px; height: 30px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--vs-text-2);
  cursor: pointer;
  font-size: 14px;
  display: grid;
  place-items: center;
  transition: .15s;
  font-family: inherit;
}
.vs-tb-icon:hover:not(:disabled) {
  background: var(--vs-panel-3);
  color: var(--vs-text);
}
.vs-tb-icon:disabled { opacity: .35; cursor: not-allowed; }

.vs-tb-sep {
  width: 1px;
  height: 20px;
  background: var(--vs-border);
  margin: 0 4px;
}

.vs-zoom-label {
  font-size: 11.5px;
  color: var(--vs-text-2);
  min-width: 42px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.vs-tb-ghost,
.vs-tb-primary {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  border: 1px solid var(--vs-border);
  transition: .15s;
}
.vs-tb-ghost {
  background: transparent;
  color: var(--vs-text-2);
}
.vs-tb-ghost:hover { color: var(--vs-text); border-color: #3a3a48; }
.vs-tb-primary {
  background: linear-gradient(135deg, var(--vs-burg), #7c2d42);
  border-color: transparent;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 6px 18px rgba(167,71,93,.28);
}
.vs-tb-primary:hover { filter: brightness(1.08); }
.vs-beta {
  background: rgba(255,255,255,.2);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 9.5px;
  letter-spacing: .05em;
}

/* ============================ MIDDLE ============================ */
.vs-middle {
  display: grid;
  grid-template-columns: 260px minmax(0,1fr) 300px;
  min-height: 0;
  overflow: hidden;
}
@media (max-width: 1100px) {
  .vs-middle { grid-template-columns: 220px minmax(0,1fr) 260px; }
}
@media (max-width: 900px) {
  .vs-middle { grid-template-columns: 1fr; overflow: visible; }
}

/* ---------- LEFT PANEL ---------- */
.vs-left {
  background: var(--vs-panel);
  border-right: 1px solid var(--vs-border);
  display: grid;
  grid-template-rows: 42px 1fr;
  min-height: 0;
}
.vs-left-tabs {
  display: flex;
  border-bottom: 1px solid var(--vs-border);
  padding: 0 6px;
  gap: 2px;
  align-items: center;
}
.vs-ltab {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--vs-text-2);
  font-size: 11.5px;
  font-weight: 700;
  padding: 10px 6px;
  cursor: pointer;
  border-radius: 8px;
  font-family: inherit;
  transition: .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.vs-ltab-ico {
  font-size: 13px;
  font-weight: 900;
  opacity: .85;
}
.vs-ltab:hover { color: var(--vs-text); }
.vs-ltab.is-active {
  background: var(--vs-panel-3);
  color: var(--vs-text);
}

.vs-left-body {
  overflow-y: auto;
  padding: 12px;
}
.vs-left-pane { display: none; }
.vs-left-pane.is-active { display: block; }

.vs-drop {
  border: 1.5px dashed var(--vs-border);
  border-radius: 12px;
  padding: 20px 14px;
  text-align: center;
  color: var(--vs-muted);
  font-size: 12.5px;
  line-height: 1.6;
  transition: .18s;
}
.vs-drop.is-over {
  border-color: var(--vs-burg);
  background: rgba(167,71,93,.08);
  color: var(--vs-text);
}
.vs-drop-ico { font-size: 26px; margin-bottom: 6px; opacity: .7; }
.vs-drop p { margin: 0 0 12px; }
.vs-drop small { color: var(--vs-muted); }

.vs-btn {
  padding: 9px 16px;
  border-radius: 8px;
  border: 0;
  background: linear-gradient(135deg, var(--vs-burg), #7c2d42);
  color: #fff;
  font-weight: 800;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
  transition: .15s;
  box-shadow: 0 6px 16px rgba(167,71,93,.25);
}
.vs-btn:hover { filter: brightness(1.08); }

.vs-media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
.vs-media-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: var(--vs-panel-2);
  border: 1px solid var(--vs-border);
  cursor: pointer;
  aspect-ratio: 4/3;
  transition: .15s;
}
.vs-media-item:hover { border-color: var(--vs-burg); }
.vs-media-item.is-used { border-color: var(--vs-burg); }
.vs-media-item video,
.vs-media-item img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.vs-media-item audio {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.vs-media-badge {
  position: absolute;
  left: 5px; bottom: 5px;
  background: rgba(0,0,0,.72);
  color: #fff;
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 700;
  backdrop-filter: blur(4px);
}
.vs-media-add {
  position: absolute;
  right: 5px; top: 5px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--vs-burg);
  color: #fff;
  border: 0;
  display: grid;
  place-items: center;
  font-size: 12px;
  cursor: pointer;
  font-weight: 900;
  transition: .15s;
}
.vs-media-add:hover { transform: scale(1.1); }

.vs-pane-hint {
  color: var(--vs-muted);
  font-size: 12px;
  line-height: 1.6;
  margin: 4px 0 12px;
}

.vs-text-preset {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--vs-border);
  border-radius: 10px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: .15s;
  background: var(--vs-panel-2);
}
.vs-text-preset:hover {
  border-color: var(--vs-burg);
  background: rgba(167,71,93,.08);
}
.vs-text-preset strong {
  width: 30px;
  text-align: center;
  font-size: 18px;
  color: var(--vs-burg-2);
}
.vs-text-preset span {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--vs-text);
}

/* ---------- CENTER ---------- */
.vs-center {
  display: grid;
  grid-template-rows: minmax(0,1fr) 44px;
  background: #050508;
  min-height: 0;
  overflow: hidden;
}
.vs-preview-wrap {
  display: grid;
  place-items: center;
  padding: 14px;
  overflow: hidden;
  min-height: 0;
}
.vs-preview {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.vs-preview canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}
.vs-preview-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--vs-muted);
  font-size: 13px;
  padding: 20px;
  pointer-events: none;
}
.vs-preview-empty > div { font-size: 40px; margin-bottom: 8px; opacity: .6; }
.vs-preview-empty p { margin: 0; }

.vs-text-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.vs-text-box {
  position: absolute;
  pointer-events: auto;
  cursor: move;
  padding: 6px 10px;
  border: 1.5px dashed transparent;
  border-radius: 4px;
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0,0,0,.6);
  user-select: none;
  white-space: pre-wrap;
  max-width: 90%;
  text-align: center;
  transition: border-color .15s;
}
.vs-text-box:hover,
.vs-text-box.is-selected {
  border-color: var(--vs-burg);
  background: rgba(167,71,93,.08);
}
.vs-text-box .vs-tb-handle {
  position: absolute;
  width: 10px; height: 10px;
  background: #fff;
  border: 1.5px solid var(--vs-burg);
  border-radius: 50%;
  display: none;
}
.vs-text-box.is-selected .vs-tb-handle { display: block; }
.vs-text-box .vs-tb-handle.nw { top: -5px; left: -5px; cursor: nwse-resize; }
.vs-text-box .vs-tb-handle.ne { top: -5px; right: -5px; cursor: nesw-resize; }
.vs-text-box .vs-tb-handle.sw { bottom: -5px; left: -5px; cursor: nesw-resize; }
.vs-text-box .vs-tb-handle.se { bottom: -5px; right: -5px; cursor: nwse-resize; }

.vs-transport {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border-top: 1px solid var(--vs-border);
  background: var(--vs-panel);
}
.vs-tr-btn {
  width: 30px; height: 30px;
  border-radius: 7px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--vs-text-2);
  cursor: pointer;
  font-size: 13px;
  display: grid;
  place-items: center;
  transition: .15s;
}
.vs-tr-btn:hover { background: var(--vs-panel-3); color: var(--vs-text); }
.vs-tr-play {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--vs-burg), #7c2d42);
  border: 0;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 18px rgba(167,71,93,.3);
  transition: .15s;
}
.vs-tr-play:hover { filter: brightness(1.1); }
.vs-tr-time {
  font-size: 12px;
  color: var(--vs-text-2);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- RIGHT INSPECTOR ---------- */
.vs-right {
  background: var(--vs-panel);
  border-left: 1px solid var(--vs-border);
  display: grid;
  grid-template-rows: 42px 1fr;
  min-height: 0;
}
.vs-right-head {
  display: flex;
  align-items: center;
  padding: 0 14px;
  border-bottom: 1px solid var(--vs-border);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--vs-text-2);
}
.vs-right-body {
  padding: 14px;
  overflow-y: auto;
  min-height: 0;
}
.vs-insp-group { margin-bottom: 14px; }
.vs-insp-lbl {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--vs-text-2);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.vs-insp-input,
.vs-insp-color {
  width: 100%;
  padding: 9px 11px;
  background: var(--vs-panel-2);
  border: 1px solid var(--vs-border);
  border-radius: 8px;
  color: var(--vs-text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s;
}
.vs-insp-input:focus { border-color: var(--vs-burg); }
.vs-insp-color {
  padding: 2px;
  height: 36px;
  cursor: pointer;
}
.vs-insp-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.vs-insp-note {
  color: var(--vs-muted);
  font-size: 11.5px;
  line-height: 1.6;
  margin-top: 12px;
}

.vs-insp-range {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  border-radius: 999px;
  background: var(--vs-panel-3);
  outline: none;
  cursor: pointer;
  margin-top: 4px;
}
.vs-insp-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--vs-burg);
  border: 2px solid #fff;
  cursor: pointer;
}
.vs-insp-range::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--vs-burg);
  border: 2px solid #fff;
  cursor: pointer;
}

.vs-insp-color-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.vs-cc {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: .15s;
}
.vs-cc.is-active { border-color: #fff; box-shadow: 0 0 0 2px rgba(255,255,255,.15); }

/* ============================ TIMELINE ============================ */
.vs-timeline {
  background: var(--vs-panel);
  border-top: 1px solid var(--vs-border);
  display: grid;
  grid-template-rows: 38px 1fr;
  position: relative;
  overflow: hidden;
}

.vs-tl-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  border-bottom: 1px solid var(--vs-border);
  background: var(--vs-panel-2);
}
.vs-tl-btn {
  padding: 6px 11px;
  border-radius: 7px;
  border: 1px solid var(--vs-border);
  background: transparent;
  color: var(--vs-text-2);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: .15s;
}
.vs-tl-btn:hover { color: var(--vs-text); border-color: #3a3a48; }
.vs-tl-btn.is-active {
  background: var(--vs-burg);
  color: #fff;
  border-color: transparent;
}
.vs-tl-flex { flex: 1; }
.vs-tl-tip {
  color: var(--vs-muted);
  font-size: 11px;
  font-style: italic;
}

.vs-tl-body {
  position: relative;
  display: grid;
  grid-template-rows: 26px 1fr;
  overflow: hidden;
  min-height: 0;
}
.vs-tl-ruler-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  border-bottom: 1px solid var(--vs-border);
  background: var(--vs-panel-2);
}
.vs-tl-headers-spacer { border-right: 1px solid var(--vs-border); }
.vs-tl-ruler {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.vs-tl-ruler-tick {
  position: absolute;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--vs-border);
}
.vs-tl-ruler-label {
  position: absolute;
  top: 4px;
  font-size: 10px;
  color: var(--vs-muted);
  padding-left: 4px;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.vs-tl-tracks {
  position: relative;
  overflow: auto;
  min-height: 0;
}

.vs-track {
  display: grid;
  grid-template-columns: 120px 1fr;
  border-bottom: 1px solid var(--vs-border);
  min-height: 54px;
}
.vs-track-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  background: var(--vs-panel-2);
  border-right: 1px solid var(--vs-border);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--vs-text-2);
}
.vs-track-head-ico {
  width: 18px;
  text-align: center;
  opacity: .8;
}
.vs-track-head-name { flex: 1; }
.vs-track-head-btn {
  width: 22px; height: 22px;
  border-radius: 5px;
  border: 0;
  background: transparent;
  color: var(--vs-muted);
  cursor: pointer;
  font-size: 11px;
  display: grid;
  place-items: center;
}
.vs-track-head-btn:hover { color: var(--vs-text); background: var(--vs-panel-3); }

.vs-track-lane {
  position: relative;
  background:
    repeating-linear-gradient(90deg, transparent 0, transparent 99px, rgba(255,255,255,.015) 99px, rgba(255,255,255,.015) 100px);
  overflow: hidden;
}

.vs-clip {
  position: absolute;
  top: 4px;
  height: 46px;
  border-radius: 6px;
  overflow: hidden;
  cursor: grab;
  user-select: none;
  transition: box-shadow .15s;
  border: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
}
.vs-clip:hover { box-shadow: 0 0 0 2px var(--vs-burg-2); }
.vs-clip.is-selected {
  box-shadow: 0 0 0 2px var(--vs-burg-2), 0 0 0 4px rgba(167,71,93,.25);
}
.vs-clip[data-kind="video"] { background: linear-gradient(180deg, var(--vs-track-video), #2b4f79); }
.vs-clip[data-kind="text"]  { background: linear-gradient(180deg, var(--vs-track-text), #6d3f80); }
.vs-clip[data-kind="audio"] { background: linear-gradient(180deg, var(--vs-track-audio), #267a5e); }
.vs-clip[data-kind="image"] { background: linear-gradient(180deg, #d29a3a, #8a6520); }

.vs-clip-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}
.vs-clip-edge {
  position: absolute;
  top: 0; bottom: 0;
  width: 8px;
  cursor: ew-resize;
  background: rgba(0,0,0,.18);
}
.vs-clip-edge.left { left: 0; }
.vs-clip-edge.right { right: 0; }
.vs-clip-edge:hover { background: rgba(255,255,255,.25); }

.vs-tl-playhead {
  position: absolute;
  top: 26px;
  bottom: 0;
  left: 120px;
  width: 1.5px;
  background: var(--vs-red);
  pointer-events: none;
  z-index: 3;
}
.vs-tl-playhead-head {
  position: absolute;
  top: -6px;
  left: -5px;
  width: 12px; height: 12px;
  background: var(--vs-red);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(255,77,103,.2);
}

.vs-tl-empty {
  padding: 14px;
  color: var(--vs-muted);
  font-size: 12px;
  font-style: italic;
  text-align: center;
}

/* ============================ TOAST ============================ */
.vs-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(20px);
  background: #1c1c25;
  color: #fff;
  border: 1px solid var(--vs-border);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  opacity: 0;
  transition: .25s;
  pointer-events: none;
  z-index: 9999;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  max-width: 90vw;
  text-align: center;
}
.vs-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Scrollbar */
.vs-app ::-webkit-scrollbar { width: 8px; height: 8px; }
.vs-app ::-webkit-scrollbar-track { background: transparent; }
.vs-app ::-webkit-scrollbar-thumb { background: #2a2a35; border-radius: 4px; }
.vs-app ::-webkit-scrollbar-thumb:hover { background: #3a3a48; }