:root {
  --mastering-ink: #202124;
  --mastering-muted: #6d737a;
  --mastering-line: #dfe3e7;
  --mastering-panel: #f6f7f8;
  --mastering-accent: #0693cd;
  --mastering-accent-dark: #235c9a;
  --mastering-success: #247a54;
  --mastering-warning: #9a6118;
  --mastering-error: #b33b36;
}

.tadaoto-mastering-page {
  color: var(--mastering-ink);
  max-width: 960px;
  padding-bottom: 72px;
}

.mastering-heading {
  border-bottom: 1px solid var(--mastering-line);
  padding-bottom: 28px;
}

.mastering-heading .musiclist-title {
  font-size: clamp(28px, 3.4vw, 36px);
  line-height: 1.18;
  margin: 28px 0 12px;
  text-box: trim-both cap alphabetic;
}

.mastering-heading__lead {
  font-size: 17px;
  line-height: 1.8;
  margin: 0;
  max-width: 42em;
}

.mastering-privacy {
  align-items: center;
  color: var(--mastering-success);
  display: flex;
  font-size: 14px;
  font-weight: 700;
  gap: 8px;
  margin: 14px 0 -0.3em;
}

.mastering-privacy span {
  font-size: 10px;
}

.mastering-app {
  margin: 40px auto 0;
  max-width: 880px;
}

.mastering-panel {
  background: #fff;
  border: 1px solid var(--mastering-line);
  border-radius: 14px;
  margin-top: 24px;
  padding: 28px;
}

.mastering-section-heading {
  align-items: flex-start;
  display: flex;
  gap: 14px;
}

.mastering-section-heading h2 {
  font-size: 22px;
  line-height: 1.35;
  margin: 0 0 5px;
}

.mastering-section-heading p {
  color: var(--mastering-muted);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

.mastering-step {
  align-items: center;
  background: var(--mastering-ink);
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  flex: 0 0 30px;
  font-size: 14px;
  font-weight: 700;
  height: 30px;
  justify-content: center;
  line-height: 1;
}

.mastering-step--done {
  background: var(--mastering-success);
}

.mastering-drop {
  align-items: center;
  background: var(--mastering-panel);
  border: 2px dashed #aeb5bc;
  border-radius: 12px;
  color: var(--mastering-ink);
  display: flex;
  flex-direction: column;
  margin-top: 24px;
  padding: 38px 20px 36px;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  width: 100%;
}

.mastering-drop:hover,
.mastering-drop.is-over {
  background: #edf4fc;
  border-color: var(--mastering-accent);
  opacity: 1;
}

.mastering-drop:focus-visible,
.mastering-button:focus-visible,
.mastering-icon-button:focus-visible,
.mastering-switch button:focus-visible,
.mastering-play:focus-visible,
.mastering-preset input:focus-visible + .mastering-preset__body {
  outline: 3px solid rgba(47, 118, 199, 0.35);
  outline-offset: 3px;
}

.mastering-drop__icon {
  color: var(--mastering-accent);
  height: 44px;
  margin-bottom: 13px;
  width: 44px;
}

.mastering-drop__icon svg {
  fill: none;
  height: 100%;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  width: 100%;
}

.mastering-drop__main {
  font-size: 17px;
  font-weight: 700;
}

.mastering-drop__sub {
  color: var(--mastering-muted);
  font-size: 13px;
  margin-top: 6px;
}

.mastering-help {
  color: var(--mastering-muted);
  font-size: 12px;
  line-height: 1.65;
  margin: 10px 2px -0.3em;
  text-align: center;
}

.mastering-file {
  align-items: center;
  background: var(--mastering-panel);
  border: 1px solid var(--mastering-line);
  border-radius: 10px;
  display: flex;
  gap: 14px;
  margin-top: 22px;
  padding: 14px 16px;
}

.mastering-file__icon {
  align-items: center;
  background: var(--mastering-ink);
  border-radius: 8px;
  color: #fff;
  display: flex;
  flex: 0 0 40px;
  font-size: 18px;
  height: 40px;
  justify-content: center;
}

.mastering-file__body {
  min-width: 0;
}

.mastering-file__name,
.mastering-file__meta {
  margin: 0;
}

.mastering-file__name {
  font-size: 14px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mastering-file__meta {
  color: var(--mastering-muted);
  font-size: 12px;
  margin-top: 3px;
}

.mastering-icon-button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--mastering-muted);
  flex: 0 0 36px;
  font-size: 24px;
  height: 36px;
  line-height: 1;
  margin-left: auto;
  padding: 0;
}

.mastering-status {
  background: #edf4fc;
  border: 1px solid #cbdcf0;
  border-radius: 12px;
  margin-top: 20px;
  padding: 18px 20px;
}

.mastering-status__row {
  display: flex;
  font-size: 14px;
  font-weight: 700;
  justify-content: space-between;
}

.mastering-status__row p,
.mastering-status__row span {
  margin: 0;
}

.mastering-progress {
  background: #d4e0ec;
  border-radius: 999px;
  height: 8px;
  margin-top: 11px;
  overflow: hidden;
}

.mastering-progress span {
  background: var(--mastering-accent);
  display: block;
  height: 100%;
  transition: width 0.25s ease;
  width: 0;
}

.mastering-status__cancel {
  margin-top: 14px;
}

.mastering-message {
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.7;
  margin-top: 20px;
  padding: 14px 16px;
}

.mastering-message--error {
  background: #fceeed;
  border: 1px solid #ecc8c5;
  color: var(--mastering-error);
}

.mastering-analysis {
  background: var(--mastering-panel);
  border-radius: 10px;
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 24px;
  overflow: hidden;
}

.mastering-analysis > div {
  align-items: baseline;
  background: var(--mastering-panel);
  border-right: 1px solid var(--mastering-line);
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 18px;
}

.mastering-analysis > div:last-child {
  border-right: 0;
}

.mastering-analysis__label {
  color: var(--mastering-muted);
  flex-basis: 100%;
  font-size: 12px;
}

.mastering-analysis strong {
  font-size: 25px;
  font-variant-numeric: tabular-nums;
}

.mastering-analysis__unit {
  color: var(--mastering-muted);
  font-size: 11px;
}

.mastering-presets {
  border: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
  margin: 26px 0 0;
  padding: 0;
}

.mastering-preset {
  cursor: pointer;
  min-width: 0;
  position: relative;
}

.mastering-preset input {
  opacity: 0;
  pointer-events: none;
  position: absolute;
}

.mastering-preset__body {
  border: 1px solid var(--mastering-line);
  border-radius: 11px;
  display: flex;
  flex-direction: column;
  min-height: 158px;
  padding: 20px;
  position: relative;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.mastering-preset:hover .mastering-preset__body {
  border-color: #aeb7c1;
}

.mastering-preset input:checked + .mastering-preset__body {
  background: #edf4fc;
  border-color: var(--mastering-accent);
  box-shadow: inset 0 0 0 1px var(--mastering-accent);
}

.mastering-preset__name {
  font-size: 14px;
  font-weight: 700;
}

.mastering-preset strong {
  font-size: 28px;
  line-height: 1.2;
  margin-top: 8px;
}

.mastering-preset strong small {
  color: var(--mastering-muted);
  font-size: 10px;
  font-weight: 400;
}

.mastering-preset__desc {
  color: var(--mastering-muted);
  font-size: 12px;
  line-height: 1.55;
  margin-top: auto;
}

.mastering-preset__badge {
  background: var(--mastering-accent);
  border-radius: 999px;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  position: absolute;
  right: 12px;
  top: 12px;
}

.mastering-primary-action,
.mastering-download {
  align-items: center;
  display: flex;
  flex-direction: column;
  margin-top: 26px;
}

.mastering-button {
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  min-height: 46px;
  padding: 12px 24px;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.mastering-button--primary {
  background: var(--mastering-accent);
  color: #fff;
  min-width: 260px;
}

.mastering-button--primary:hover {
  background: var(--mastering-accent-dark);
  opacity: 1;
}

.mastering-button--secondary {
  background: #fff;
  border-color: #b8bec5;
  color: var(--mastering-ink);
}

.mastering-button--secondary:hover {
  background: var(--mastering-panel);
  opacity: 1;
}

.mastering-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.mastering-primary-action p,
.mastering-download p {
  color: var(--mastering-muted);
  font-size: 11px;
  margin: 9px 0 -0.3em;
  text-align: center;
}

.mastering-results {
  border-color: #bfd7ca;
}

.mastering-comparison {
  align-items: center;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr auto 1fr;
  margin-top: 24px;
}

.mastering-comparison__card {
  align-items: baseline;
  background: var(--mastering-panel);
  border-radius: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 18px 20px;
}

.mastering-comparison__card > span:first-child {
  color: var(--mastering-muted);
  flex-basis: 100%;
  font-size: 12px;
}

.mastering-comparison__card strong {
  font-size: 30px;
  font-variant-numeric: tabular-nums;
}

.mastering-comparison__card small {
  color: var(--mastering-muted);
  font-size: 11px;
}

.mastering-comparison__card > span:last-child {
  color: var(--mastering-muted);
  flex-basis: 100%;
  font-size: 12px;
}

.mastering-comparison__card--after {
  background: #eaf4ef;
}

.mastering-comparison__arrow {
  color: var(--mastering-muted);
  font-size: 22px;
}

.mastering-player {
  background: var(--mastering-ink);
  border-radius: 12px;
  color: #fff;
  margin-top: 20px;
  padding: 20px;
}

.mastering-player__top {
  align-items: center;
  display: flex;
  gap: 18px;
}

.mastering-switch {
  background: #34373a;
  border-radius: 999px;
  display: flex;
  padding: 3px;
}

.mastering-switch button {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: #cfd2d5;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  min-height: 34px;
  padding: 7px 16px;
}

.mastering-switch button.is-active {
  background: #fff;
  color: var(--mastering-ink);
}

.mastering-play {
  align-items: center;
  background: var(--mastering-accent);
  border: 0;
  border-radius: 50%;
  color: #fff;
  display: flex;
  font-size: 14px;
  height: 42px;
  justify-content: center;
  margin-left: auto;
  padding: 0 0 0 2px;
  width: 42px;
}

.mastering-seek-row {
  align-items: center;
  display: grid;
  font-size: 11px;
  gap: 12px;
  grid-template-columns: 40px 1fr 40px;
  margin-top: 17px;
}

.mastering-seek-row span:last-child {
  text-align: right;
}

.mastering-seek-row input {
  accent-color: var(--mastering-accent);
  margin: 0;
  width: 100%;
}

.mastering-match {
  align-items: flex-start;
  color: #c5c9cc;
  display: flex;
  font-size: 11px;
  gap: 8px;
  line-height: 1.5;
  margin-top: 14px;
}

.mastering-match input {
  accent-color: var(--mastering-accent);
  margin-top: 2px;
}

.mastering-warning {
  background: #fff6e8;
  border: 1px solid #ecd5ad;
  border-radius: 10px;
  color: #72470f;
  font-size: 13px;
  line-height: 1.65;
  margin-top: 20px;
  padding: 15px 17px;
}

.mastering-warning p {
  margin: 4px 0 -0.3em;
}

.mastering-download {
  border-top: 1px solid var(--mastering-line);
  margin-top: 24px;
  padding-top: 24px;
}

.mastering-download .mastering-button--secondary {
  margin-top: 10px;
}

.mastering-notes {
  color: var(--mastering-muted);
  font-size: 13px;
  line-height: 1.75;
  margin: 38px auto 0;
  max-width: 760px;
}

.mastering-notes h2 {
  color: var(--mastering-ink);
  font-size: 16px;
  margin: 0 0 10px;
}

.mastering-notes ul {
  margin: 0;
  padding-left: 1.5em;
}

.mastering-notes li + li {
  margin-top: 5px;
}

@media (max-width: 768px) {
  .tadaoto-mastering-page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .mastering-heading {
    margin: 0;
  }

  .mastering-heading .musiclist-title {
    font-size: 30px;
    margin-top: 22px;
  }

  .mastering-app {
    margin-top: 28px;
  }

  .mastering-panel {
    padding: 22px;
  }

  .mastering-analysis {
    grid-template-columns: 1fr 1fr;
  }

  .mastering-analysis > div:nth-child(2) {
    border-right: 0;
  }

  .mastering-analysis > div:last-child {
    border-top: 1px solid var(--mastering-line);
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .mastering-heading__lead {
    font-size: 15px;
  }

  .mastering-privacy {
    align-items: flex-start;
    font-size: 12px;
  }

  .mastering-panel {
    border-radius: 12px;
    padding: 18px;
  }

  .mastering-section-heading h2 {
    font-size: 19px;
  }

  .mastering-drop {
    padding: 30px 12px 28px;
  }

  .mastering-analysis {
    grid-template-columns: 1fr;
  }

  .mastering-analysis > div,
  .mastering-analysis > div:nth-child(2) {
    border-bottom: 1px solid var(--mastering-line);
    border-right: 0;
  }

  .mastering-analysis > div:last-child {
    border-bottom: 0;
    border-top: 0;
    grid-column: auto;
  }

  .mastering-presets {
    grid-template-columns: 1fr;
  }

  .mastering-preset__body {
    min-height: 0;
  }

  .mastering-preset__desc {
    margin-top: 12px;
  }

  .mastering-button--primary,
  .mastering-button--secondary {
    width: 100%;
  }

  .mastering-comparison {
    gap: 8px;
    grid-template-columns: 1fr;
  }

  .mastering-comparison__arrow {
    line-height: 1;
    text-align: center;
    transform: rotate(90deg);
  }

  .mastering-player__top {
    align-items: stretch;
  }

  .mastering-switch {
    flex: 1;
  }

  .mastering-switch button {
    flex: 1;
    padding-left: 10px;
    padding-right: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mastering-drop,
  .mastering-preset__body,
  .mastering-button,
  .mastering-progress span {
    transition: none;
  }
}