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

body {
  background: #000;
  color: #eee;
  font-family: 'Courier New', monospace;
  font-size: 15px;
  line-height: 1.6;
  height: 100vh;
  overflow: hidden;
}

.terminal {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: #000;
  border: 2px solid #333;
  padding: 20px;
  gap: 16px;
}

.header {
  border-bottom: 1px solid #333;
  padding-bottom: 10px;
  margin-bottom: 10px;
}

.title-bar {
  font-weight: bold;
  text-align: center;
  font-size: 18px;
  margin-bottom: 10px;
}

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

.btn {
  background: #222;
  color: #fff;
  border: 1px solid #444;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 4px;
}

.btn:hover:not(:disabled) {
  background: #444;
  border-color: #666;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:focus {
  outline: 1px solid #fff;
  outline-offset: 2px;
}

.address-bar,
.search-bar {
  background: #111;
  color: #fff;
  border: 1px solid #333;
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 4px;
}

.address-bar {
  flex: 1;
  min-width: 240px;
}

.search-bar {
  width: 160px;
}

.address-bar:focus,
.search-bar:focus {
  outline: 1px solid #fff;
  background: #222;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  gap: 10px;
}

.file-header {
  display: grid;
  grid-template-columns: 30px 1fr 80px 100px 120px 100px;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid #333;
  font-weight: bold;
  background: #111;
  font-size: 14px;
}

.file-list {
  flex: 1;
  overflow-y: auto;
  background: #000;
  border: 1px solid #333;
  border-radius: 4px;
}

.file-item {
  display: grid;
  grid-template-columns: 30px 1fr 80px 100px 120px 100px;
  gap: 12px;
  padding: 8px 0;
  background: #181818;
  align-items: center;
  cursor: pointer;
}

.file-item:hover {
  background: #111;
}

.file-item.selected {
  background: #222;
}

.file-item.focused {
  background: #333;
  outline: 1px solid #fff;
}

.icon {
  width: 16px;
  height: 16px;
  justify-self: center;
}

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-type,
.file-size,
.file-date {
  font-size: 13px;
  color: #aaa;
}

.download-btn {
  background: #222;
  color: #fff;
  border: 1px solid #555;
  padding: 3px 8px;
  font-size: 12px;
  border-radius: 3px;
  cursor: pointer;
}

.download-btn:hover {
  background: #444;
}

.status-bar {
  border-top: 1px solid #333;
  padding: 8px 0;
  font-size: 12px;
  color: #888;
  display: flex;
  justify-content: space-between;
}

.help-text {
  font-size: 11px;
  color: #888;
}

/* Scrollbar styling */
.file-list::-webkit-scrollbar {
  width: 10px;
}

.file-list::-webkit-scrollbar-track {
  background: #111;
}

.file-list::-webkit-scrollbar-thumb {
  background: #333;
  border: 1px solid #555;
  border-radius: 6px;
}

.file-list::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Terminal cursor effect */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.cursor::after {
  content: '█';
  color: #fff;
  animation: blink 1s infinite;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .file-header,
  .file-item {
    grid-template-columns: 24px 1fr 60px 80px;
    font-size: 13px;
  }

  .file-header :nth-child(5),
  .file-header :nth-child(6),
  .file-item :nth-child(5),
  .file-item :nth-child(6) {
    display: none;
  }
}