:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-soft: #eef2f4;
  --border: #d7dde1;
  --border-strong: #bec7cd;
  --text: #172026;
  --muted: #64717a;
  --accent: #146c94;
  --accent-strong: #0c5577;
  --accent-soft: #e1f0f6;
  --success: #237a57;
  --success-soft: #e1f3eb;
  --danger: #b33c3c;
  --danger-soft: #fae8e6;
  --warning: #9a6418;
  --warning-soft: #f7edd9;
  --shadow: 0 10px 30px rgba(22, 35, 43, 0.07);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0;
}

.system-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
}

.system-state.ready .state-dot {
  background: var(--success);
}

.system-state.error .state-dot {
  background: var(--danger);
}

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 40px 0 72px;
}

.workspace {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.workspace-heading,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.workspace-heading {
  padding: 24px 26px 20px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

h2 {
  font-size: 18px;
  letter-spacing: 0;
}

#uploadHint {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.drop-zone {
  display: flex;
  min-height: 230px;
  margin: 0 26px;
  padding: 34px 20px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  color: var(--text);
  background: #f8fafb;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.drop-zone:hover,
.drop-zone:focus-within,
.drop-zone.dragging {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.drop-zone.dragging {
  transform: translateY(-1px);
}

.drop-zone strong {
  font-size: 18px;
}

.drop-zone > span:last-child {
  color: var(--muted);
  font-size: 13px;
}

.upload-symbol {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 4px;
  place-items: center;
  border-radius: 50%;
  color: var(--accent);
  background: var(--surface);
  box-shadow: 0 4px 16px rgba(20, 108, 148, 0.14);
  font-size: 24px;
  font-weight: 700;
}

.workspace-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 20px 26px 24px;
}

.workspace-meta span {
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 12px;
}

.jobs-section {
  margin-top: 38px;
}

.section-heading {
  margin-bottom: 15px;
}

.jobs-list {
  display: grid;
  gap: 14px;
}

.job-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.job-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  padding: 20px 22px 18px;
}

.job-title-row {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
}

.job-name {
  overflow: hidden;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-badge {
  flex: 0 0 auto;
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 12px;
  font-weight: 600;
}

.status-badge.converting,
.status-badge.queued,
.status-badge.uploading {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.status-badge.completed {
  color: var(--success);
  background: var(--success-soft);
}

.status-badge.failed {
  color: var(--danger);
  background: var(--danger-soft);
}

.job-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.progress-track {
  height: 5px;
  margin-top: 17px;
  border-radius: 3px;
  background: var(--surface-soft);
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 220ms ease;
}

.job-card.failed .progress-bar {
  background: var(--danger);
}

.job-card.completed .progress-bar {
  background: var(--success);
}

.job-stage {
  margin-top: 9px;
  color: var(--muted);
  font-size: 12px;
}

.job-error {
  display: none;
  max-height: 90px;
  margin-top: 8px;
  padding: 8px 10px;
  overflow: auto;
  border-radius: 4px;
  color: var(--danger);
  background: var(--danger-soft);
  font-family: Consolas, monospace;
  font-size: 12px;
  white-space: pre-wrap;
}

.job-error.visible {
  display: block;
}

.job-actions {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--surface);
  background: var(--accent);
  text-decoration: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.button:hover {
  background: var(--accent-strong);
}

.button:disabled {
  cursor: default;
  opacity: 0.45;
}

.button-secondary {
  border-color: var(--border);
  color: var(--text);
  background: var(--surface);
}

.button-secondary:hover {
  border-color: var(--border-strong);
  background: var(--surface-soft);
}

.button-danger {
  border-color: transparent;
  color: var(--danger);
  background: var(--danger-soft);
}

.button-danger:hover {
  color: #8f2a2a;
  background: #f5d8d5;
}

.button-quiet {
  min-height: 30px;
  padding: 4px 9px;
  color: var(--muted);
  background: transparent;
}

.button-quiet:hover {
  color: var(--text);
  background: var(--surface-soft);
}

.preview-panel {
  display: none;
  grid-template-columns: minmax(260px, 440px) minmax(0, 1fr);
  gap: 18px;
  padding: 16px 22px 22px;
  border-top: 1px solid var(--border);
  background: #fafbfc;
}

.preview-panel.visible {
  display: grid;
}

.preview-panel video {
  width: 100%;
  max-height: 250px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #101417;
}

.preview-info {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.preview-info strong {
  font-size: 13px;
}

.manifest-url {
  width: 100%;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--muted);
  background: var(--surface);
  font-family: Consolas, monospace;
  font-size: 12px;
}

.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.empty-state {
  display: flex;
  min-height: 190px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.5);
}

.empty-state.hidden {
  display: none;
}

.empty-mark {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 8px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 13px;
  font-weight: 800;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  max-width: min(380px, calc(100% - 48px));
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  background: var(--surface);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 760px) {
  .topbar {
    padding: 0 18px;
  }

  main {
    width: min(100% - 24px, 1120px);
    padding-top: 24px;
  }

  .workspace-heading,
  .workspace-meta {
    padding-right: 18px;
    padding-left: 18px;
  }

  .drop-zone {
    min-height: 190px;
    margin-right: 18px;
    margin-left: 18px;
  }

  .job-main {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 17px 18px;
  }

  .job-actions {
    flex-wrap: wrap;
  }

  .preview-panel {
    grid-template-columns: 1fr;
    padding-right: 18px;
    padding-left: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}