@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700;900&family=Inter:wght@400;600;700&display=swap');

:root {
  --green: #4E5851;
  --green-dark: #3B4A45;
  --orange: #FF7800;
  --bg: #FAFBFC;
  --card: #FFFFFF;
  --text: #1F2A28;
  --text-sub: #6B7A76;
  --border: #E5E8E7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans TC', sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header h1 {
  font-family: 'Noto Sans TC', sans-serif;
  font-weight: 900;
  font-size: 32px;
  color: var(--green-dark);
  margin: 0 0 8px;
}

header .sub {
  color: var(--text-sub);
  font-size: 15px;
  margin: 0 0 32px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.card:hover, .card.dragover {
  border-color: var(--orange);
  background: #FFF8F0;
}

.drop-title {
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 6px;
}

.drop-hint {
  color: var(--text-sub);
  font-size: 13px;
  margin: 0;
}

.progress-wrap { margin-top: 20px; }

.progress-bar {
  background: var(--border);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}

.progress-fill {
  background: var(--green);
  height: 100%;
  width: 0%;
  transition: width 0.2s;
}

#progressText {
  font-size: 13px;
  color: var(--text-sub);
  margin: 8px 0 0;
}

.status-msg {
  font-size: 14px;
  font-weight: 500;
  min-height: 20px;
  margin: 16px 0 0;
}

.status-msg.success { color: var(--green-dark); }
.status-msg.error { color: #D9534F; }

.list-section { margin-top: 48px; }

.list-section h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--green-dark);
  margin: 0 0 16px;
}

.video-list .empty {
  color: var(--text-sub);
  font-size: 14px;
}

.video-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 10px;
}

.video-item .name {
  font-weight: 500;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-item .meta {
  color: var(--text-sub);
  font-size: 12px;
  margin-top: 2px;
}

.badge {
  flex-shrink: 0;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 8px;
  background: #FFF4DD;
  color: var(--green-dark);
  white-space: nowrap;
}