:root {
  color-scheme: dark light;
  --bg: #0d1117;
  --bg-elev: #161b22;
  --bg-elev-2: #1f242c;
  --border: #2a313a;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-strong: #1f6feb;
  --danger: #f85149;
  --success: #3fb950;
  --warn: #d29922;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100%;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.app__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.04em;
}

.brand__text {
  display: flex;
  flex-direction: column;
}

.brand__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand__tagline {
  margin: 0;
  color: var(--text-dim);
  font-size: 13px;
}

.session {
  display: flex;
  align-items: center;
  gap: 12px;
}

.session__user {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 13px;
}

.app__main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.app__footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.panel__title {
  margin: 0 0 8px 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.panel__hint {
  margin: 0 0 16px 0;
  color: var(--text-dim);
  font-size: 13px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form--inline {
  flex-direction: row;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.form__row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 200px;
}

.form__row--grow {
  flex: 1;
  min-width: 280px;
}

.form__label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.form__input {
  appearance: none;
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.4;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.form__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

.form__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form__actions--inline {
  align-self: stretch;
}

.form__error {
  margin: 0;
  color: var(--danger);
  font-size: 13px;
  font-family: var(--mono);
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease,
    transform 80ms ease;
}

.btn:hover:not(:disabled) {
  background: #2a313a;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: white;
}

.btn--primary:hover:not(:disabled) {
  background: #2a7feb;
  border-color: #2a7feb;
}

.btn--ghost {
  background: transparent;
  color: var(--text-dim);
}

.btn--ghost:hover:not(:disabled) {
  color: var(--text);
  background: var(--bg-elev-2);
}

.btn--stream {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  border-color: var(--accent-strong);
  color: white;
}

.btn--stream:hover:not(:disabled) {
  background: linear-gradient(135deg, #2a7feb, #58a6ff);
  border-color: #2a7feb;
}

.source {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}

.source__header {
  margin-bottom: 12px;
}

.source__name {
  margin: 0 0 4px 0;
  font-size: 15px;
  font-weight: 600;
  word-break: break-all;
}

.source__meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
}

.source__status[data-state="ready"] {
  color: var(--success);
}

.source__status[data-state="fetching"],
.source__status[data-state="added"] {
  color: var(--warn);
}

.source__status[data-state="error"] {
  color: var(--danger);
}

.files {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.files__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.files__index {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  width: 24px;
  text-align: right;
}

.files__name {
  flex: 1;
  font-family: var(--mono);
  font-size: 13px;
  word-break: break-all;
}

.files__size {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  min-width: 80px;
  text-align: right;
}

.files__mime {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: lowercase;
  min-width: 120px;
  text-align: right;
}

.player {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.player__header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.player__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.player__meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
}

.player__status[data-state="ready"],
.player__status[data-state="streaming"] {
  color: var(--success);
}

.player__status[data-state="buffering"],
.player__status[data-state="connecting"] {
  color: var(--warn);
}

.player__status[data-state="error"] {
  color: var(--danger);
}

.player__status[data-state="ended"] {
  color: var(--text-dim);
}

.player__stage {
  background: black;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.player__video {
  display: block;
  width: 100%;
  max-height: 70vh;
  background: black;
}

.player__details {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  word-break: break-all;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 13px;
  box-shadow: var(--shadow);
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease;
}

.toast[data-visible="true"] {
  opacity: 1;
}

code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-elev-2);
  padding: 1px 4px;
  border-radius: 4px;
}

@media (max-width: 640px) {
  .app {
    padding: 16px 12px 32px;
  }

  .files__item {
    flex-wrap: wrap;
  }

  .files__mime {
    min-width: 0;
    text-align: left;
  }

  .form--inline {
    flex-direction: column;
    align-items: stretch;
  }
}