@font-face {
  font-family: "Space Grotesk";
  src: url("../../fonts/space-grotesk-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #121622;
  --panel: #191f31;
  --panel-strong: #202842;
  --panel-soft: #161b2a;
  --text: #ffffff;
  --muted: #aab4d4;
  --faint: #687396;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --blue: #4a4aff;
  --blue-soft: rgba(74, 74, 255, 0.18);
  --pink: #ff3366;
  --green: #52f0aa;
  --yellow: #ffd166;
  --danger: #ff5c7c;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 10%, rgba(74, 74, 255, 0.2), transparent 30%),
    radial-gradient(circle at 86% 18%, rgba(255, 51, 102, 0.13), transparent 26%),
    linear-gradient(180deg, #121622 0%, #0d1019 100%);
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button,
.file-button {
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0.72rem 1rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    opacity 160ms ease;
}

button:hover:not(:disabled),
.file-button:hover {
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.file-button:focus-visible,
.drop-zone:focus-visible {
  outline: 3px solid rgba(74, 74, 255, 0.58);
  outline-offset: 3px;
}

code {
  color: #d7dcff;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.app-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 22px;
}

.hero {
  display: grid;
  gap: 22px;
  padding: clamp(26px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(74, 74, 255, 0.22), transparent 45%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.hero-topline,
.section-head,
.mini-head,
.transport-row,
.action-row,
.export-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.brand-link:hover {
  color: #dce1ff;
}

.version-pill,
.preview-mode {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  border: 1px solid rgba(74, 74, 255, 0.5);
  border-radius: 999px;
  padding: 0.25rem 0.72rem;
  color: #dfe2ff;
  background: rgba(74, 74, 255, 0.14);
  white-space: nowrap;
}

.hero-copy {
  display: grid;
  gap: 10px;
}

.kicker,
.section-kicker {
  margin: 0;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p,
dl {
  margin: 0;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.45rem, 7vw, 5.5rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.28rem, 2.4vw, 1.85rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  font-size: 0.95rem;
}

.subtitle {
  max-width: 660px;
  color: #d4d9ef;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.privacy-note {
  width: fit-content;
  max-width: 100%;
  border: 1px solid rgba(82, 240, 170, 0.34);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  color: #ecfff7;
  background: rgba(82, 240, 170, 0.1);
}

.top-grid,
.work-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(420px, 1.35fr);
  gap: 18px;
  margin-top: 18px;
}

.work-grid {
  grid-template-columns: minmax(420px, 1.2fr) minmax(300px, 0.8fr);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(18px, 3vw, 26px);
  background: rgba(25, 31, 49, 0.88);
  box-shadow: 0 14px 50px rgba(0, 0, 0, 0.2);
}

.section-head {
  align-items: flex-start;
  margin-bottom: 18px;
}

.section-head > div {
  display: grid;
  gap: 7px;
}

.section-note,
.toggle-row small,
.status-message,
.empty-state {
  color: var(--muted);
}

.section-note {
  max-width: 360px;
  line-height: 1.5;
}

.drop-zone {
  display: grid;
  gap: 18px;
  place-items: center;
  min-height: 230px;
  border: 1px dashed rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  padding: 28px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(74, 74, 255, 0.1), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.02);
}

.drop-zone.is-dragging {
  border-color: var(--blue);
  background:
    linear-gradient(180deg, rgba(74, 74, 255, 0.22), rgba(255, 51, 102, 0.08)),
    rgba(255, 255, 255, 0.04);
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.drop-zone-copy {
  display: grid;
  gap: 7px;
  max-width: 360px;
}

.drop-zone-copy strong {
  font-size: 1.4rem;
}

.drop-zone-copy span {
  color: var(--muted);
}

.file-button,
.primary-action,
.export-button {
  border-color: rgba(74, 74, 255, 0.7);
  background: linear-gradient(135deg, var(--blue), #6d6dff);
  color: var(--text);
  font-weight: 700;
}

.status-message {
  min-height: 24px;
  margin-top: 14px;
  line-height: 1.45;
}

.status-message.is-error {
  color: #ffd6df;
}

.status-message.is-success {
  color: #d7fff0;
}

.file-list-block {
  margin-top: 20px;
}

.mini-head {
  margin-bottom: 10px;
}

.mini-head span {
  color: var(--faint);
  font-size: 0.9rem;
}

.file-list {
  display: grid;
  gap: 8px;
  max-height: 320px;
  margin: 0;
  padding: 0;
  overflow: auto;
  list-style: none;
}

.file-list button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  min-height: 58px;
  padding: 0.72rem 0.82rem;
  text-align: left;
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.file-list button.is-selected {
  border-color: rgba(74, 74, 255, 0.82);
  background: rgba(74, 74, 255, 0.18);
}

.file-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  color: var(--muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

.waveform-frame {
  position: relative;
  min-height: 260px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--panel-soft);
}

#waveform {
  display: block;
  width: 100%;
  height: 260px;
  cursor: crosshair;
}

.waveform-empty-button {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.waveform-empty-button.is-hidden {
  display: none;
}

.progress-track {
  height: 8px;
  margin: 14px 0;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

#progress-fill {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), var(--pink));
}

.transport-row {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.time-readout {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.manual-trim-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
  border: 1px solid rgba(74, 74, 255, 0.2);
  border-radius: 8px;
  padding: 0.92rem;
  background: rgba(74, 74, 255, 0.08);
}

.manual-trim-panel > div:first-child {
  display: grid;
  gap: 6px;
}

.manual-trim-readout {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.manual-trim-readout strong {
  color: var(--text);
}

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

.meta-grid div,
.process-report div {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.04);
}

dt {
  color: var(--faint);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

dd {
  min-width: 0;
  margin: 0.35rem 0 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-weight: 700;
}

.controls-stack {
  display: grid;
  gap: 12px;
}

.toggle-row,
.control-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  padding: 0.92rem;
  background: rgba(255, 255, 255, 0.035);
}

.toggle-row span {
  display: grid;
  gap: 4px;
}

.toggle-row input[type="checkbox"] {
  width: 24px;
  height: 24px;
  accent-color: var(--blue);
}

.control-row {
  grid-template-columns: minmax(130px, 0.7fr) minmax(70px, auto) minmax(180px, 1.2fr);
}

.control-row span,
.control-row output {
  color: #dce1ff;
}

.control-row output {
  justify-self: end;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--blue);
}

input[type="number"] {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  color: var(--text);
  background: rgba(0, 0, 0, 0.18);
}

input[type="text"],
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  color: var(--text);
  background: rgba(0, 0, 0, 0.18);
}

select {
  color-scheme: dark;
}

.action-row {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 18px;
}

.analysis-warnings {
  display: grid;
  gap: 10px;
  min-height: 144px;
}

.warning-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  padding: 0.84rem 0.95rem;
  color: #e8ebff;
  background: rgba(255, 255, 255, 0.045);
  line-height: 1.45;
}

.warning-item.is-danger {
  border-left-color: var(--danger);
  background: rgba(255, 92, 124, 0.1);
}

.warning-item.is-good {
  border-left-color: var(--green);
  background: rgba(82, 240, 170, 0.08);
}

.warning-item.is-note {
  border-left-color: var(--yellow);
  background: rgba(255, 209, 102, 0.08);
}

.process-report {
  grid-template-columns: 1fr;
  margin-top: 18px;
}

.export-panel {
  grid-column: 1 / -1;
  align-items: flex-start;
  background:
    linear-gradient(135deg, rgba(74, 74, 255, 0.18), rgba(255, 51, 102, 0.08)),
    rgba(25, 31, 49, 0.88);
}

.export-panel > div {
  display: grid;
  gap: 8px;
  max-width: 720px;
}

.export-controls {
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 12px;
  width: min(100%, 980px);
  max-width: 980px;
}

.field-control {
  display: grid;
  gap: 7px;
}

.field-control span {
  color: var(--faint);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.export-action-row {
  display: flex;
  grid-column: 1 / -1;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.export-button {
  min-width: min(100%, 230px);
}

.app-footer {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 16px 0 32px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 980px) {
  .top-grid,
  .work-grid {
    grid-template-columns: 1fr;
  }

  .meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .export-panel {
    align-items: stretch;
  }

  .manual-trim-panel,
  .export-controls {
    grid-template-columns: 1fr;
  }

  .export-action-row {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .app-shell {
    width: min(100% - 20px, 1240px);
    padding-top: 10px;
  }

  .hero,
  .panel {
    padding: 18px;
  }

  .hero-topline,
  .section-head,
  .mini-head,
  .export-panel,
  .manual-trim-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .drop-zone {
    min-height: 210px;
    padding: 20px;
  }

  .meta-grid,
  .control-row {
    grid-template-columns: 1fr;
  }

  .control-row output {
    justify-self: start;
  }

  .toggle-row {
    grid-template-columns: 1fr auto;
  }

  #waveform {
    height: 220px;
  }

  .waveform-frame {
    min-height: 220px;
  }
}