:root {
  --racte-primary: #6c63ff;
  --racte-primary-dark: #554cf0;
  --racte-primary-soft: #f1efff;
  --racte-heading: #24243a;
  --racte-text: #707087;
  --racte-line: #e8e8f1;
  --racte-surface: #ffffff;
  --racte-page: #f7f7fb;
  --racte-success: #16845b;
  --racte-danger: #cf3f4f;
  --racte-shadow: 0 18px 55px rgba(40, 37, 78, 0.10);
}

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

.racte-app {
  width: 100%;
  padding: 42px 18px;
  color: var(--racte-text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

.racte-shell {
  width: min(100%, 790px);
  margin: 0 auto;
}

.racte-header {
  margin-bottom: 26px;
  text-align: center;
}

.racte-title {
  margin: 0 0 8px;
  color: var(--racte-heading);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  text-transform: uppercase;
}

.racte-subtitle {
  margin: 0;
  color: var(--racte-text);
  font-size: 15px;
}

.racte-card {
  padding: clamp(20px, 4vw, 34px);
  overflow: hidden;
  border: 1px solid rgba(232, 232, 241, 0.92);
  border-radius: 24px;
  background: var(--racte-surface);
  box-shadow: var(--racte-shadow);
}

.racte-dropzone {
  position: relative;
  display: flex;
  min-height: 320px;
  padding: 34px 20px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border: 2px dashed #d9d6ff;
  border-radius: 18px;
  background: linear-gradient(180deg, #fcfbff 0%, #f7f6ff 100%);
  text-align: center;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.racte-dropzone:hover,
.racte-dropzone:focus-visible,
.racte-dropzone.is-dragging {
  border-color: var(--racte-primary);
  background: var(--racte-primary-soft);
  outline: none;
  transform: translateY(-1px);
}

.racte-file-input {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.racte-file-icon {
  display: grid;
  width: 82px;
  height: 82px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 22px;
  background: var(--racte-surface);
  box-shadow: 0 12px 28px rgba(86, 77, 240, 0.13);
}

.racte-file-icon svg {
  width: 48px;
  height: 48px;
  fill: none;
  stroke: var(--racte-primary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.racte-dropzone h3 {
  margin: 0 0 5px;
  color: var(--racte-heading);
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.racte-dropzone p {
  margin: 0 0 18px;
  color: #8b8ba0;
  font-size: 14px;
}

.racte-select-button,
.racte-convert-button {
  appearance: none;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.racte-select-button {
  min-width: 146px;
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--racte-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(108, 99, 255, 0.24);
  transition: background 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.racte-select-button:hover,
.racte-select-button:focus-visible {
  background: var(--racte-primary-dark);
  outline: none;
  transform: translateY(-1px);
  box-shadow: 0 13px 26px rgba(108, 99, 255, 0.30);
}

.racte-file-note {
  margin-top: 14px;
  color: #aaa8bb;
  font-size: 12px;
}

.racte-files,
.racte-options,
.racte-progress,
.racte-status {
  margin-top: 20px;
}

.racte-files-head {
  display: flex;
  margin-bottom: 10px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--racte-heading);
  font-size: 14px;
}

.racte-clear,
.racte-file-remove {
  padding: 3px;
  border: 0;
  background: transparent;
  color: var(--racte-danger);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.racte-file-list {
  display: grid;
  max-height: 246px;
  padding: 0;
  margin: 0;
  overflow: auto;
  gap: 9px;
  list-style: none;
}

.racte-file-item {
  display: grid;
  min-width: 0;
  padding: 12px 13px;
  align-items: center;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  gap: 11px;
  border: 1px solid var(--racte-line);
  border-radius: 12px;
  background: #fff;
}

.racte-file-badge {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 9px;
  background: var(--racte-primary-soft);
  color: var(--racte-primary);
  font-size: 10px;
  font-weight: 800;
}

.racte-file-copy {
  min-width: 0;
}

.racte-file-name {
  display: block;
  overflow: hidden;
  color: var(--racte-heading);
  font-size: 13px;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.racte-file-size {
  display: block;
  margin-top: 2px;
  color: #9a99aa;
  font-size: 11px;
}

.racte-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.racte-field {
  display: grid;
  min-width: 0;
  gap: 7px;
}

.racte-field > span {
  color: var(--racte-heading);
  font-size: 12px;
  font-weight: 700;
}

.racte-field select {
  width: 100%;
  min-height: 43px;
  padding: 0 36px 0 12px;
  border: 1px solid var(--racte-line);
  border-radius: 10px;
  outline: none;
  background-color: #fff;
  color: #4f4e62;
  font: inherit;
  font-size: 12px;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.racte-field select:focus {
  border-color: var(--racte-primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.12);
}

.racte-progress {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  color: #858496;
  font-size: 12px;
}

.racte-progress-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #efeff5;
}

.racte-progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--racte-primary);
  transition: width 220ms ease;
}

.racte-status {
  padding: 11px 13px;
  border-radius: 10px;
  font-size: 13px;
}

.racte-status.is-success {
  background: #eaf8f2;
  color: var(--racte-success);
}

.racte-status.is-error {
  background: #fff0f1;
  color: var(--racte-danger);
}

.racte-convert-button {
  position: relative;
  display: inline-flex;
  width: 100%;
  min-height: 54px;
  margin-top: 22px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 12px;
  background: var(--racte-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .01em;
  box-shadow: 0 12px 28px rgba(108, 99, 255, .24);
  transition: background 160ms ease, transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.racte-convert-button:not(:disabled):hover,
.racte-convert-button:not(:disabled):focus-visible {
  background: var(--racte-primary-dark);
  outline: none;
  transform: translateY(-1px);
  box-shadow: 0 15px 32px rgba(108, 99, 255, .30);
}

.racte-convert-button:disabled {
  opacity: .48;
  cursor: not-allowed;
  box-shadow: none;
}

.racte-spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: racte-spin .7s linear infinite;
}

.racte-convert-button.is-loading .racte-spinner {
  display: inline-block;
}

.racte-privacy {
  display: flex;
  margin: 14px 0 0;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: #9998aa;
  font-size: 11px;
  text-align: center;
}

.racte-privacy svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: var(--racte-primary);
}

.racte-noscript {
  padding: 12px;
  border-radius: 8px;
  background: #fff0f1;
  color: var(--racte-danger);
  text-align: center;
}

@keyframes racte-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 680px) {
  .racte-app { padding: 26px 12px; }
  .racte-card { border-radius: 18px; }
  .racte-dropzone { min-height: 280px; }
  .racte-options { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .racte-app *,
  .racte-app *::before,
  .racte-app *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}