@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

.itpc-tool-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  color: #171821;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.itpc-tool-wrapper .itpc-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0;
}

.itpc-tool-wrapper .itpc-header {
  text-align: center;
  margin: 0 auto 26px;
  max-width: 760px;
}

.itpc-tool-wrapper .itpc-title {
  margin: 0;
  font-size: 34px;
  line-height: 1.12;
  letter-spacing: 0;
  color: #11131a;
  font-weight: 800;
}

.itpc-tool-wrapper .itpc-subtitle {
  margin: 12px 0 0;
  color: #606575;
  font-size: 16px;
  line-height: 1.55;
}

.itpc-tool-wrapper .itpc-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.25fr);
  gap: 22px;
  align-items: stretch;
}

.itpc-tool-wrapper .itpc-panel {
  background: linear-gradient(180deg, #ffffff 0%, #fbfbff 100%);
  border: 1px solid #e4e7f0;
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(31, 35, 58, 0.09);
  min-width: 0;
}

.itpc-tool-wrapper .itpc-controls-panel {
  padding: 20px;
}

.itpc-tool-wrapper .itpc-preview-panel {
  padding: 20px;
  display: flex;
  flex-direction: column;
  min-height: 560px;
}

.itpc-tool-wrapper .itpc-upload-zone {
  border: 1px dashed #bfc7da;
  border-radius: 18px;
  padding: 22px;
  background:
    radial-gradient(circle at top left, rgba(91, 126, 255, 0.13), transparent 34%),
    linear-gradient(180deg, #ffffff, #f8f9ff);
  text-align: center;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  outline: none;
}

.itpc-tool-wrapper .itpc-upload-zone.itpc-dragover {
  border-color: #6d72ff;
  box-shadow: 0 0 0 4px rgba(109, 114, 255, 0.13);
}

.itpc-tool-wrapper .itpc-upload-zone:focus-visible {
  border-color: #5c66f2;
  box-shadow: 0 0 0 4px rgba(92, 102, 242, 0.18);
}

.itpc-tool-wrapper .itpc-upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: #ffffff;
  font-size: 28px;
  background: linear-gradient(135deg, #3278ff, #8d61ff);
  box-shadow: 0 10px 24px rgba(89, 95, 255, 0.26);
}

.itpc-tool-wrapper .itpc-upload-text {
  display: grid;
  gap: 4px;
  margin-bottom: 16px;
}

.itpc-tool-wrapper .itpc-upload-text strong {
  font-size: 16px;
  color: #171821;
}

.itpc-tool-wrapper .itpc-upload-text span,
.itpc-tool-wrapper .itpc-file-name {
  font-size: 13px;
  color: #6b7080;
  line-height: 1.4;
  word-break: break-word;
}

.itpc-tool-wrapper .itpc-choose-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: #171821;
  color: #ffffff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 10px 20px rgba(23, 24, 33, 0.16);
}

.itpc-tool-wrapper .itpc-choose-button:hover {
  background: #26293a;
  transform: translateY(-1px);
}

.itpc-tool-wrapper .itpc-choose-button:active {
  transform: translateY(0);
}

.itpc-tool-wrapper .itpc-file-input {
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  pointer-events: none;
}

.itpc-tool-wrapper .itpc-file-name {
  margin-top: 12px;
}

.itpc-tool-wrapper .itpc-message {
  min-height: 20px;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.45;
}

.itpc-tool-wrapper .itpc-error {
  color: #b42318;
}

.itpc-tool-wrapper .itpc-status {
  color: #3b4860;
}

.itpc-tool-wrapper .itpc-control-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.itpc-tool-wrapper .itpc-control {
  display: grid;
  gap: 9px;
  min-width: 0;
}

.itpc-tool-wrapper .itpc-control-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.itpc-tool-wrapper .itpc-control-head label,
.itpc-tool-wrapper .itpc-fieldset legend {
  color: #262a36;
  font-size: 14px;
  font-weight: 700;
}

.itpc-tool-wrapper .itpc-control-head output {
  color: #5f6680;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.itpc-tool-wrapper .itpc-range {
  width: 100%;
  accent-color: #656dff;
}

.itpc-tool-wrapper .itpc-range:focus-visible,
.itpc-tool-wrapper .itpc-select:focus-visible,
.itpc-tool-wrapper .itpc-color-input:focus-visible,
.itpc-tool-wrapper .itpc-action:focus-visible {
  outline: 3px solid rgba(101, 109, 255, 0.25);
  outline-offset: 3px;
}

.itpc-tool-wrapper .itpc-select {
  width: 100%;
  min-height: 42px;
  border: 1px solid #d9deea;
  border-radius: 12px;
  padding: 0 12px;
  background: #ffffff;
  color: #171821;
  font-weight: 700;
}

.itpc-tool-wrapper .itpc-fieldset {
  border: 0;
  margin: 2px 0 0;
  padding: 0;
  min-width: 0;
}

.itpc-tool-wrapper .itpc-segmented {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  padding: 5px;
  margin-top: 9px;
  background: #eef1f8;
  border-radius: 14px;
  border: 1px solid #dfe3ef;
}

.itpc-tool-wrapper .itpc-segmented label {
  min-width: 0;
}

.itpc-tool-wrapper .itpc-segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.itpc-tool-wrapper .itpc-segmented span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 8px;
  border-radius: 10px;
  color: #596073;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, box-shadow 160ms ease;
  white-space: nowrap;
}

.itpc-tool-wrapper .itpc-segmented input:checked + span {
  background: #ffffff;
  color: #202437;
  box-shadow: 0 7px 16px rgba(34, 39, 64, 0.1);
}

.itpc-tool-wrapper .itpc-segmented input:focus-visible + span {
  outline: 3px solid rgba(101, 109, 255, 0.28);
  outline-offset: 2px;
}

.itpc-tool-wrapper .itpc-color-control {
  opacity: 0.48;
  transition: opacity 160ms ease;
}

.itpc-tool-wrapper .itpc-color-control.itpc-active {
  opacity: 1;
}

.itpc-tool-wrapper .itpc-color-input {
  width: 100%;
  height: 44px;
  padding: 4px;
  border: 1px solid #d9deea;
  border-radius: 12px;
  background: #ffffff;
}

.itpc-tool-wrapper .itpc-preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.itpc-tool-wrapper .itpc-preview-head h3 {
  margin: 0;
  color: #171821;
  font-size: 18px;
  line-height: 1.25;
}

.itpc-tool-wrapper .itpc-preview-head p {
  margin: 4px 0 0;
  color: #6b7080;
  font-size: 13px;
  line-height: 1.45;
}

.itpc-tool-wrapper .itpc-preview-stage {
  position: relative;
  flex: 1;
  min-height: 390px;
  border-radius: 18px;
  border: 1px solid #e1e5ef;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background-color: #ffffff;
  background-image:
    linear-gradient(45deg, #edf0f7 25%, transparent 25%),
    linear-gradient(-45deg, #edf0f7 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf0f7 75%),
    linear-gradient(-45deg, transparent 75%, #edf0f7 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
}

.itpc-tool-wrapper .itpc-empty-state {
  display: grid;
  justify-items: center;
  gap: 6px;
  text-align: center;
  color: #697084;
}

.itpc-tool-wrapper .itpc-empty-state strong {
  color: #25293a;
  font-size: 16px;
}

.itpc-tool-wrapper .itpc-empty-state span {
  font-size: 13px;
}

.itpc-tool-wrapper .itpc-empty-mark {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(50, 120, 255, 0.13), rgba(141, 97, 255, 0.15));
  color: #6269ef;
  font-size: 30px;
}

.itpc-tool-wrapper .itpc-canvas {
  display: none;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.itpc-tool-wrapper .itpc-preview-stage.itpc-has-image .itpc-empty-state {
  display: none;
}

.itpc-tool-wrapper .itpc-preview-stage.itpc-has-image .itpc-canvas {
  display: block;
}

.itpc-tool-wrapper .itpc-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.itpc-tool-wrapper .itpc-action {
  border: 1px solid #d8deec;
  border-radius: 13px;
  background: #ffffff;
  color: #25293a;
  min-height: 44px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease, opacity 160ms ease;
}

.itpc-tool-wrapper .itpc-action:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 9px 18px rgba(31, 35, 58, 0.1);
  border-color: #c6cde0;
}

.itpc-tool-wrapper .itpc-action:active:not(:disabled) {
  transform: translateY(0);
}

.itpc-tool-wrapper .itpc-action:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.itpc-tool-wrapper .itpc-primary {
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(135deg, #3278ff, #7b61ff);
  box-shadow: 0 12px 22px rgba(86, 103, 255, 0.24);
}

.itpc-tool-wrapper .itpc-muted {
  background: #f6f7fb;
}

@media (prefers-reduced-motion: reduce) {
  .itpc-tool-wrapper .itpc-upload-zone,
  .itpc-tool-wrapper .itpc-choose-button,
  .itpc-tool-wrapper .itpc-action,
  .itpc-tool-wrapper .itpc-segmented span,
  .itpc-tool-wrapper .itpc-color-control {
    transition: none;
  }
}

@media (min-width: 320px) and (max-width: 374px) {
  .itpc-tool-wrapper .itpc-shell {
    width: min(100% - 20px, 1200px);
    padding: 22px 0;
  }

  .itpc-tool-wrapper .itpc-title {
    font-size: 25px;
  }

  .itpc-tool-wrapper .itpc-subtitle {
    font-size: 14px;
  }

  .itpc-tool-wrapper .itpc-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .itpc-tool-wrapper .itpc-panel {
    border-radius: 18px;
  }

  .itpc-tool-wrapper .itpc-controls-panel,
  .itpc-tool-wrapper .itpc-preview-panel {
    padding: 14px;
  }

  .itpc-tool-wrapper .itpc-preview-panel {
    min-height: auto;
  }

  .itpc-tool-wrapper .itpc-upload-zone {
    padding: 16px 12px;
  }

  .itpc-tool-wrapper .itpc-segmented {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .itpc-tool-wrapper .itpc-preview-stage {
    min-height: 260px;
    padding: 10px;
  }

  .itpc-tool-wrapper .itpc-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .itpc-tool-wrapper .itpc-action {
    width: 100%;
  }
}

@media (min-width: 375px) and (max-width: 429px) {
  .itpc-tool-wrapper .itpc-shell {
    width: min(100% - 24px, 1200px);
    padding: 24px 0;
  }

  .itpc-tool-wrapper .itpc-title {
    font-size: 28px;
  }

  .itpc-tool-wrapper .itpc-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .itpc-tool-wrapper .itpc-controls-panel,
  .itpc-tool-wrapper .itpc-preview-panel {
    padding: 16px;
  }

  .itpc-tool-wrapper .itpc-preview-panel {
    min-height: auto;
  }

  .itpc-tool-wrapper .itpc-segmented {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .itpc-tool-wrapper .itpc-preview-stage {
    min-height: 300px;
    padding: 12px;
  }

  .itpc-tool-wrapper .itpc-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (min-width: 430px) and (max-width: 767px) {
  .itpc-tool-wrapper .itpc-shell {
    width: min(100% - 28px, 1200px);
    padding: 28px 0;
  }

  .itpc-tool-wrapper .itpc-title {
    font-size: 30px;
  }

  .itpc-tool-wrapper .itpc-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .itpc-tool-wrapper .itpc-preview-panel {
    min-height: auto;
  }

  .itpc-tool-wrapper .itpc-segmented {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .itpc-tool-wrapper .itpc-preview-stage {
    min-height: 340px;
  }

  .itpc-tool-wrapper .itpc-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .itpc-tool-wrapper .itpc-actions .itpc-muted {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .itpc-tool-wrapper .itpc-shell {
    width: min(100% - 36px, 1200px);
    padding: 32px 0;
  }

  .itpc-tool-wrapper .itpc-grid {
    grid-template-columns: 1fr;
  }

  .itpc-tool-wrapper .itpc-preview-panel {
    min-height: 520px;
  }

  .itpc-tool-wrapper .itpc-control-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .itpc-tool-wrapper .itpc-fieldset,
  .itpc-tool-wrapper .itpc-color-control {
    grid-column: 1 / -1;
  }

  .itpc-tool-wrapper .itpc-preview-stage {
    min-height: 390px;
  }
}

@media (min-width: 1024px) {
  .itpc-tool-wrapper .itpc-shell {
    padding: 40px 0;
  }

  .itpc-tool-wrapper .itpc-preview-stage {
    min-height: 430px;
  }
}