*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.08);
  --surface-border: rgba(255,255,255,0.08);
  --cyan: #00f0ff;
  --magenta: #ff00aa;
  --purple: #7000ff;
  --cyan-glow: rgba(0,240,255,0.3);
  --magenta-glow: rgba(255,0,170,0.3);
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #55557a;
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --radius: 12px;
  --radius-sm: 8px;
}
html { font-size: 14px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  will-change: transform;
}
.bg-orbs .orb:nth-child(1) {
  width: 700px; height: 700px;
  background: var(--cyan);
  top: -200px; left: -200px;
  animation: orbFloat1 25s ease-in-out infinite alternate;
}
.bg-orbs .orb:nth-child(2) {
  width: 500px; height: 500px;
  background: var(--magenta);
  top: 40%; right: -150px;
  animation: orbFloat2 20s ease-in-out infinite alternate;
}
.bg-orbs .orb:nth-child(3) {
  width: 600px; height: 600px;
  background: var(--purple);
  bottom: -200px; left: 40%;
  animation: orbFloat3 22s ease-in-out infinite alternate;
}
@keyframes orbFloat1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(120px, 100px) scale(1.15); }
}
@keyframes orbFloat2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-80px, 60px) scale(1.2); }
}
@keyframes orbFloat3 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(100px, -80px) scale(1.1); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,240,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 48px;
}

header {
  text-align: center;
  padding: 40px 0 32px;
}
header h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px var(--cyan-glow);
}
header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 8px;
  font-weight: 300;
  letter-spacing: 2px;
}

.hero-description {
  text-align: center;
  margin: -12px auto 28px;
  padding: 16px 24px;
}
.hero-description p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.5px;
}
.hero-description .hero-note {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.glass-card {
  background: var(--surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.folder-path {
  flex: 1;
  min-width: 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.folder-path .label {
  color: var(--text-muted);
  margin-right: 8px;
}

.settings-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding: 20px 24px;
  margin-bottom: 20px;
  align-items: start;
}
@media (max-width: 768px) {
  .settings-panel {
    grid-template-columns: 1fr;
  }
}
.settings-section h3 {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-transform: uppercase;
}
.column-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.column-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 0;
  user-select: none;
}
.column-check input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
}
.column-check input[type="checkbox"]:checked {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
}
.column-check input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 4px; top: 1px;
  width: 6px; height: 10px;
  border: solid #0a0a1a;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.column-check .label-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 400;
}
.export-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}
.format-select {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%238888aa'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  min-width: 140px;
}
.format-select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 16px var(--cyan-glow);
}
.format-select option {
  background: #1a1a3a;
  color: var(--text-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
  outline: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: #fff;
  box-shadow: 0 0 20px var(--cyan-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--cyan-glow), 0 4px 20px rgba(0,0,0,0.3);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1px solid var(--surface-border);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--cyan);
  box-shadow: 0 0 16px var(--cyan-glow);
}
.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-size: 0.85rem;
}
.btn-icon:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--cyan);
  color: var(--cyan);
}

.stats-bar {
  display: flex;
  gap: 24px;
  padding: 10px 20px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 0 12px;
}
.filter-input {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}
.filter-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
}
.filter-input::placeholder {
  color: var(--text-muted);
}

.table-container {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.table-responsive {
  overflow-x: auto;
}
#fileTable {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
#fileTable thead th {
  background: rgba(0,240,255,0.04);
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--surface-border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 0.2s;
  position: sticky;
  top: 0;
  z-index: 2;
}
#fileTable thead th:hover {
  color: var(--cyan);
}
#fileTable thead th .sort-icon {
  display: inline-block;
  margin-left: 6px;
  opacity: 0.3;
  font-size: 0.7rem;
}
#fileTable thead th.sort-active .sort-icon {
  opacity: 1;
  color: var(--cyan);
}
#fileTable tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.03);
  transition: background 0.2s;
}
#fileTable tbody tr:hover {
  background: rgba(0,240,255,0.04);
}
#fileTable tbody td {
  padding: 10px 16px;
  color: var(--text-primary);
  font-weight: 300;
}
#fileTable tbody td.mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
#fileTable tbody td .ext-badge {
  display: inline-block;
  padding: 1px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0,240,255,0.08);
  border: 1px solid rgba(0,240,255,0.15);
  color: var(--cyan);
}
#fileTable tbody td .file-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 22px;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  border-radius: 3px;
  background: rgba(255,255,255,0.04);
  border: 1px solid currentColor;
  opacity: 0.7;
  flex-shrink: 0;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon {
  width: 80px;
  height: 80px;
  border: 2px dashed var(--text-muted);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 16px;
  opacity: 0.4;
}
.empty-state p {
  font-size: 0.9rem;
  font-weight: 300;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 0;
}
.pagination .page-btn {
  min-width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}
.pagination .page-btn:hover:not(.active):not(:disabled) {
  border-color: var(--cyan);
  color: var(--cyan);
}
.pagination .page-btn.active {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 12px var(--cyan-glow);
}
.pagination .page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.pagination .page-info {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin: 0 8px;
}

footer {
  text-align: center;
  padding: 40px 0 20px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-heading);
  letter-spacing: 2px;
}

.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(10,10,26,0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
}
.loading-overlay.active {
  display: flex;
}
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--surface-border);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-overlay .loading-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 300;
}

.fade-enter {
  animation: fadeIn 0.3s ease-out both;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* tr animation on add */
.row-enter {
  animation: rowIn 0.25s ease-out both;
}
@keyframes rowIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}