:root {
  --accent: #1D9E75;
  --accent-dim: #E1F5EE;
  --accent-text: #085041;
  --border: 0.5px solid #e0e0e0;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-mono: 'Courier New', Courier, monospace;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-bg-secondary: #f5f5f5;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-mono);
  background: #fff;
  color: var(--color-text-primary);
  padding: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

h1 {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

/* Drop zone */
#drop-zone {
  border: 1.5px dashed #ccc;
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

#drop-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

#drop-zone svg {
  display: block;
  margin: 0 auto 1rem;
  opacity: 0.4;
}

#drop-zone p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

#drop-zone b {
  color: var(--color-text-primary);
  font-weight: 500;
}

#file-input {
  display: none;
}

/* Controls bar */
#controls {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: var(--border);
}

#controls label {
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

#controls input[type="text"] {
  flex: 1;
  min-width: 180px;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 10px;
  border: var(--border);
  border-radius: var(--radius-md);
  outline: none;
  background: #fff;
  color: var(--color-text-primary);
}

#controls input[type="text"]:focus {
  border-color: var(--accent);
}

#stats {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-left: auto;
}

/* Buttons */
.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  border: var(--border);
  background: transparent;
  color: var(--color-text-primary);
  white-space: nowrap;
  transition: background 0.1s;
}

.btn:hover {
  background: var(--color-bg-secondary);
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn.primary:hover {
  opacity: 0.88;
}

.btn.primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.danger {
  color: #A32D2D;
  border-color: #F09595;
}

.btn.danger:hover {
  background: #FCEBEB;
}

/* Select bar */
.select-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.select-bar a {
  color: var(--accent-text);
  cursor: pointer;
  text-decoration: underline;
  font-size: 12px;
}

/* URL list */
#url-list {
  max-height: 520px;
  overflow-y: auto;
  border: var(--border);
  border-radius: var(--radius-lg);
}

.url-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-bottom: var(--border);
  font-size: 11.5px;
  transition: background 0.1s;
}

.url-row:last-child {
  border-bottom: none;
}

.url-row:hover {
  background: var(--color-bg-secondary);
}

.url-row input[type="checkbox"] {
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

.url-text {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}

.url-text span.name {
  color: var(--color-text-primary);
}

.ext-badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  flex-shrink: 0;
  font-family: var(--font-mono);
  min-width: 36px;
  text-align: center;
}

.dl-btn {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: var(--radius-md);
  border: 0.5px solid #5DCAA5;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  color: var(--accent-text);
  white-space: nowrap;
  font-family: var(--font-mono);
  transition: background 0.1s;
}

.dl-btn:hover {
  background: var(--accent-dim);
}

/* Empty state */
#empty {
  display: none;
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 2rem;
  text-align: center;
}