.video-watermark-adder-page .tool-workbench {
  width: min(100% - 48px, 1440px);
}

.video-watermark-adder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) 410px;
  gap: 22px;
  align-items: start;
}

.video-watermark-adder-stage,
.video-watermark-adder-panel,
.video-watermark-uploader label,
.video-watermark-preview,
.adder-stat-grid article,
.adder-export-card {
  border: 1px solid rgba(120, 148, 204, .18);
  background: rgba(255, 255, 255, .84);
  box-shadow: 0 18px 46px rgba(44, 77, 140, .10);
}

.video-watermark-adder-stage {
  display: grid;
  gap: 18px;
  border-radius: 24px;
  padding: 18px;
}

.video-watermark-uploader {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.video-watermark-uploader label {
  display: grid;
  gap: 7px;
  border-style: dashed;
  border-radius: 18px;
  padding: 18px;
  cursor: pointer;
  background: linear-gradient(145deg, rgba(247, 250, 255, .95), rgba(255, 255, 255, .84));
}

.video-watermark-uploader input {
  display: none;
}

.video-watermark-uploader b {
  color: #071431;
  font-size: 16px;
}

.video-watermark-uploader span {
  overflow: hidden;
  color: #66769c;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-watermark-preview {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
  border-radius: 22px;
  padding: 16px;
}

.video-watermark-preview video {
  width: 100%;
  min-height: 220px;
  border-radius: 16px;
  background: #071225;
  object-fit: contain;
}

.video-watermark-canvas-wrap {
  position: relative;
  display: grid;
  min-height: 390px;
  overflow: hidden;
  place-items: center;
  border-radius: 18px;
  background: #f6f9ff;
}

.video-watermark-canvas-wrap.empty {
  border: 1px dashed rgba(106, 132, 188, .32);
}

.video-watermark-canvas-wrap p {
  color: #7a88a8;
  font-size: 15px;
  font-weight: 760;
}

.video-watermark-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 560px;
  object-fit: contain;
}

.watermark-drag-dot {
  position: absolute;
  z-index: 4;
  width: 54px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: rgba(23, 103, 242, .88);
  box-shadow: 0 10px 22px rgba(23, 103, 242, .24);
  font-size: 12px;
  font-weight: 760;
  transform: translate(-50%, -50%);
  cursor: grab;
}

.video-watermark-adder-dragging,
.video-watermark-adder-dragging * {
  user-select: none;
}

.video-watermark-adder-panel {
  position: sticky;
  top: 86px;
  display: grid;
  gap: 18px;
  border-radius: 24px;
  padding: 18px;
}

.adder-section {
  display: grid;
  gap: 13px;
}

.adder-section h2 {
  margin: 0;
  color: #071431;
  font-size: 17px;
}

.adder-tabs,
.position-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.position-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.adder-tabs button,
.position-grid button {
  height: 38px;
  border: 1px solid rgba(109, 136, 195, .20);
  border-radius: 12px;
  color: #31466f;
  background: rgba(248, 251, 255, .92);
  font-size: 13px;
  font-weight: 720;
  cursor: pointer;
}

.adder-tabs button.active,
.position-grid button.active,
.adder-tabs button:hover,
.position-grid button:hover {
  border-color: rgba(37, 110, 255, .50);
  color: #1767f2;
  background: #fff;
}

.adder-field {
  display: grid;
  gap: 8px;
  color: #52648e;
  font-size: 13px;
  font-weight: 720;
}

.adder-field input:not([type="color"]) {
  height: 42px;
  border: 1px solid rgba(112, 145, 255, .26);
  border-radius: 13px;
  padding: 0 12px;
  color: #071431;
  background: #fff;
}

.adder-field input[type="color"] {
  width: 54px;
  height: 34px;
  border: 0;
  background: transparent;
}

.adder-image-tip {
  display: grid;
  min-height: 74px;
  place-items: center;
  border: 1px dashed rgba(106, 132, 188, .32);
  border-radius: 14px;
  color: #7280a0;
  background: #f8fbff;
  font-size: 13px;
}

.adder-image-tip img {
  max-width: 120px;
  max-height: 72px;
  object-fit: contain;
}

.adder-range {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 48px;
  gap: 10px;
  align-items: center;
  color: #52648e;
  font-size: 13px;
  font-weight: 720;
}

.adder-range input {
  width: 100%;
  accent-color: #276cf4;
}

.adder-range b {
  color: #0b1834;
  text-align: right;
}

.adder-checks {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.adder-checks label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  border-radius: 999px;
  padding: 0 12px;
  color: #42577f;
  background: #f4f8ff;
  font-size: 13px;
  font-weight: 720;
}

.adder-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.adder-stat-grid article {
  display: grid;
  gap: 6px;
  border-radius: 16px;
  padding: 13px;
}

.adder-stat-grid span {
  color: #6b7899;
  font-size: 12px;
  font-weight: 720;
}

.adder-stat-grid b {
  overflow: hidden;
  color: #071431;
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.adder-export-card {
  display: grid;
  gap: 12px;
  border-radius: 18px;
  padding: 16px;
}

.adder-export-card button,
.adder-export-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  border: 0;
  border-radius: 12px;
  padding: 0 18px;
  color: #fff;
  background: linear-gradient(135deg, #1767f2, #755cff);
  box-shadow: 0 14px 28px rgba(43, 100, 230, .24);
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
  cursor: pointer;
}

.adder-export-card a {
  background: linear-gradient(135deg, #19b98f, #41d8c6);
}

.adder-export-card button:disabled {
  cursor: not-allowed;
  opacity: .58;
}

.adder-export-card p {
  margin: 0;
  color: #64749a;
  font-size: 13px;
  line-height: 1.65;
}

@media (max-width: 1120px) {
  .video-watermark-adder-layout,
  .video-watermark-preview {
    grid-template-columns: 1fr;
  }
  .video-watermark-adder-panel {
    position: static;
  }
}

@media (max-width: 680px) {
  .video-watermark-adder-page .tool-workbench {
    width: min(100% - 28px, 1440px);
  }
  .video-watermark-uploader,
  .adder-stat-grid {
    grid-template-columns: 1fr;
  }
  .position-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}