:root {
  --bg: #f3efe6;
  --paper: #faf7f1;
  --ink: #14171c;
  --muted: #5a5e66;
  --line: rgba(20, 23, 28, 0.14);
  --live: #1f7a45;
  --pad-x: clamp(1.15rem, 4vw, 2.75rem);
  --font: "Segoe UI", ui-sans-serif, system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.45;
}

body.is-menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--pad-x);
  position: sticky;
  top: 0;
  z-index: 8;
  background: rgba(243, 239, 230, 0.92);
  backdrop-filter: blur(10px);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.logo__mark {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 2px;
  background: var(--ink);
}

.logo__word {
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.03em;
}

.menu-toggle {
  display: none;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: 1.35rem;
}

.nav a {
  font-size: 0.88rem;
}

.nav a:hover {
  opacity: 0.55;
}

.hero,
.tools,
.conv,
.md,
.missing {
  padding: clamp(2.5rem, 7vh, 5rem) var(--pad-x) clamp(3.5rem, 8vh, 5.5rem);
}

.hero {
  max-width: 46rem;
}

.hero__eyebrow,
.tools__eyebrow,
.conv__eyebrow,
.missing__eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.conv__eyebrow a:hover {
  opacity: 0.55;
}

.hero__title,
.conv__title,
.missing__title,
.tools__title {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.hero__text,
.tools__text,
.conv__text,
.missing__text {
  margin: 1rem 0 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 1rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.75rem 0 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.55rem;
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.btn--solid {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
}

.btn--solid:hover:not(:disabled) {
  opacity: 0.88;
}

.btn--ghost {
  border: 1px solid var(--line);
  background: transparent;
}

.btn--ghost:hover:not(:disabled) {
  border-color: var(--ink);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tools {
  border-top: 1px solid var(--line);
}

.tools__head {
  max-width: 38rem;
  margin: 0 0 clamp(1.75rem, 4vh, 2.75rem);
}

.tool-list {
  border-top: 1px solid var(--line);
}

.tool-row {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.7fr);
  gap: 1rem 1.5rem;
  align-items: end;
  padding: 1.45rem 0;
  border-bottom: 1px solid var(--line);
}

.tool-list:has(.tool-row:hover) .tool-row:not(:hover):not(.tool-row--soon) {
  opacity: 0.4;
}

.tool-row--soon {
  opacity: 0.45;
  pointer-events: none;
}

.tool-row__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.tool-row__summary {
  margin: 0.4rem 0 0;
  max-width: 50ch;
  color: var(--muted);
  font-size: 0.92rem;
}

.tool-row__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.28rem;
  text-align: right;
}

.tool-row__status {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool-row:not(.tool-row--soon) .tool-row__status {
  color: var(--live);
}

.tool-row__kind {
  font-size: 0.72rem;
  color: var(--muted);
}

.conv__unsupported {
  margin: 0 0 1.5rem;
  max-width: 42rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  background: var(--paper);
}

.conv-drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 11.5rem;
  padding: 2rem 1.2rem;
  border: 1px dashed rgba(20, 23, 28, 0.32);
  background: var(--paper);
  cursor: pointer;
}

.conv-drop:hover,
.conv-drop.is-dragover {
  border-color: var(--ink);
}

.conv-drop__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.conv-drop__title {
  font-weight: 600;
}

.conv-drop__hint {
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

.conv-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem 1.5rem;
  margin-top: 1.5rem;
}

.conv-format {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 0 1 11rem;
}

.conv-format__label,
.conv-naming__legend,
.conv-naming__prefix-label,
.conv-quality__label {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}

.conv-format__select,
.conv-naming__prefix-input {
  min-height: 2.4rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  background: var(--paper);
}

.conv-format__select:focus,
.conv-naming__prefix-input:focus {
  outline: 1px solid var(--ink);
  outline-offset: 1px;
}

.conv-naming {
  flex: 1 1 100%;
  margin: 0;
  padding: 0;
  border: 0;
}

.conv-naming__legend {
  padding: 0;
  margin: 0 0 0.55rem;
}

.conv-naming__modes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
}

.conv-naming__mode {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.conv-naming__mode input {
  accent-color: var(--ink);
}

.conv-naming__prefix {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  margin-top: 0.85rem;
}

.conv-naming__prefix-input {
  flex: 1 1 10rem;
  max-width: 16rem;
}

.conv-naming__prefix-hint {
  flex: 1 1 100%;
  font-size: 0.78rem;
  color: var(--muted);
}

.conv-quality {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex: 1 1 14rem;
  max-width: 22rem;
}

.conv-quality__label {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
}

.conv-quality__label strong {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}

.conv-quality__range {
  width: 100%;
  accent-color: var(--ink);
}

.conv-controls__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.conv-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.conv-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.conv-item__name {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  word-break: break-word;
}

.conv-item__meta {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.conv-item__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.conv-item__dl {
  min-height: 2.2rem;
  padding: 0.35rem 0.95rem;
  font-size: 0.8rem;
  text-decoration: none;
}

.conv-item__remove {
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.conv-item__remove:hover {
  color: var(--ink);
}

body.page-md {
  height: 100vh;
  overflow: hidden;
}

body.page-md .page {
  height: 100%;
  min-height: 0;
}

.md {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-bottom: 1.25rem;
}

.md__head {
  margin-bottom: 1.25rem;
}

.md__heading {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem 1.5rem;
}

.md__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.md__open {
  position: relative;
  overflow: hidden;
}

.md__open input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.md-split {
  --split: 50%;
  flex: 1;
  display: flex;
  min-height: 22rem;
  border: 1px solid var(--line);
  background: var(--paper);
}

.md-split.is-dragging {
  user-select: none;
  cursor: col-resize;
}

.md-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.md-pane--edit {
  flex: 0 0 var(--split);
  width: var(--split);
}

.md-pane--view {
  flex: 1;
}

.md-pane__label {
  margin: 0;
  padding: 0.55rem 0.85rem 0;
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.md-editor,
.md-preview {
  flex: 1;
  min-height: 0;
  overflow: auto;
  margin: 0;
  padding: 0.7rem 0.95rem 1rem;
}

.md-editor {
  width: 100%;
  border: 0;
  background: transparent;
  resize: none;
  line-height: 1.5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
}

.md-editor:focus {
  outline: 0;
}

.md-preview {
  font-size: 0.95rem;
}

.md-preview > :first-child {
  margin-top: 0;
}

.md-preview h1,
.md-preview h2,
.md-preview h3 {
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.md-preview h1 {
  font-size: 1.7rem;
}

.md-preview h2 {
  font-size: 1.28rem;
}

.md-preview p,
.md-preview ul,
.md-preview ol,
.md-preview blockquote {
  margin: 0.7rem 0;
}

.md-preview a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.md-preview img {
  margin: 0.7rem 0;
  border: 1px solid var(--line);
}

.md-preview code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
}

.md-preview pre {
  padding: 0.75rem 0.85rem;
  background: rgba(20, 23, 28, 0.05);
  overflow: auto;
}

.md-preview pre code {
  font-size: 0.82rem;
}

.md-preview blockquote {
  padding: 0 0 0 0.85rem;
  border-left: 2px solid var(--ink);
  color: var(--muted);
}

.md-grip {
  flex: 0 0 10px;
  position: relative;
  cursor: col-resize;
  background: transparent;
}

.md-grip::before {
  content: "";
  position: absolute;
  inset: 0.65rem 3px;
  border-radius: 99px;
  background: var(--ink);
  opacity: 0.18;
}

.md-grip:hover::before,
.md-split.is-dragging .md-grip::before {
  opacity: 0.45;
}

.mp3-panel {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.85rem;
  max-width: 36rem;
}

.mp3-panel__name {
  margin: 0;
  font-weight: 650;
  word-break: break-word;
}

.mp3-panel__meta,
.mp3-panel__hint,
.mp3-panel__status {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.mp3-player {
  width: 100%;
}

.missing {
  flex: 1;
}

.site-footer {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding: 1.25rem var(--pad-x) 1.6rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer a:hover {
  color: var(--ink);
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    inset: 3.4rem var(--pad-x) auto;
    flex-direction: column;
    gap: 0.85rem;
    padding: 1rem 1.1rem;
    background: var(--paper);
    border: 1px solid var(--line);
  }

  .nav.is-open {
    display: flex;
  }

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

  .tool-row__meta {
    align-items: flex-start;
    text-align: left;
  }

  .md-split {
    flex-direction: column;
  }

  .md-split.is-dragging {
    cursor: row-resize;
  }

  .md-pane--edit {
    width: auto;
    height: var(--split);
  }

  .md-grip {
    flex: 0 0 10px;
    cursor: row-resize;
  }

  .md-grip::before {
    inset: 3px 0.85rem;
  }
}