:root {
  --bg-main: #0a0e17;
  --bg-card: rgba(18, 26, 43, 0.7);
  --bg-card-hover: rgba(24, 34, 56, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 102, 241, 0.5);
  
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.35);
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #4f46e5 50%, #06b6d4 100%);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #8b5cf6;

  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
}

/* Ambient glow */
.ambient-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(140px);
  z-index: 0;
  opacity: 0.45;
}
.glow-top-left {
  top: -150px;
  left: -150px;
  background: radial-gradient(circle, #4f46e5 0%, rgba(99, 102, 241, 0) 70%);
}
.glow-bottom-right {
  bottom: -150px;
  right: -150px;
  background: radial-gradient(circle, #06b6d4 0%, rgba(6, 182, 212, 0) 70%);
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 8px var(--accent-amber);
  transition: all 0.3s ease;
}

.status-indicator.online .status-dot {
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.status-indicator.offline .status-dot {
  background: var(--accent-rose);
  box-shadow: 0 0 10px var(--accent-rose);
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.transfer-form-card {
  margin-bottom: 36px;
}

.card-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 6px;
}

.card-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* Form controls */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.required {
  color: var(--accent-rose);
}
.optional {
  color: var(--text-dim);
  font-weight: 400;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 680px) {
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
}

input[type="text"],
input[type="url"],
select,
textarea {
  width: 100%;
  background: rgba(10, 14, 23, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: rgba(13, 19, 33, 0.9);
}

.input-with-action {
  display: flex;
  gap: 8px;
}

.input-with-action input {
  flex: 1;
}

.select-wrapper {
  position: relative;
}

.toggle-group {
  justify-content: center;
}

.toggle-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(10, 14, 23, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  cursor: pointer;
  height: 100%;
}

.toggle-text {
  display: flex;
  flex-direction: column;
}

.toggle-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.toggle-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: .3s;
  border-radius: 24px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}
input:checked + .slider {
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}
input:checked + .slider:before {
  transform: translateX(20px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-retry {
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.08);
}
.btn-retry:hover {
  background: rgba(6, 182, 212, 0.18);
  border-color: rgba(6, 182, 212, 0.5);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.btn-icon {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  border-radius: var(--radius-md);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-icon:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.btn-large {
  padding: 14px 28px;
  font-size: 1rem;
  width: 100%;
}

/* Section Header */
.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 18px;
}
.section-title-row h3 {
  font-size: 1.15rem;
  font-weight: 700;
}
.section-title-row p {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* Tasks Grid */
.tasks-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 200px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
}
.empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--text-dim);
}
.empty-state h4 {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 6px;
}
.empty-state p {
  font-size: 0.88rem;
  max-width: 400px;
}

/* Task Item Card */
.task-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
}

.task-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}

.task-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.task-file-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}

.task-filename {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.task-dest {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-cyan);
}

.badge-tag-parts {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: #a5b4fc;
}

.task-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.badge-queued {
  background: rgba(156, 163, 175, 0.15);
  color: #9ca3af;
  border: 1px solid rgba(156, 163, 175, 0.3);
}

.badge-downloading {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
  animation: pulse-border 2s infinite;
}

.badge-extracting {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  animation: pulse-border 2s infinite;
}

.badge-uploading {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
  animation: pulse-border 2s infinite;
}

.badge-completed {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-failed, .badge-cancelled {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

@keyframes pulse-border {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(99, 102, 241, 0); }
  100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* Progress bar */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: 4px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-details {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.task-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-title {
  color: var(--text-dim);
  font-size: 0.68rem;
  text-transform: uppercase;
}
.stat-value {
  color: var(--text-main);
  font-weight: 500;
}

@media (max-width: 600px) {
  .task-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-card {
  background: #111827;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
}

.terminal-view {
  background: #030712;
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: #e2e8f0;
  height: 340px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.config-textarea {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.5;
  background: #030712;
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.info-callout {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-size: 0.82rem;
  color: #cbd5e1;
  margin-top: 14px;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
}

.toast {
  background: rgba(17, 24, 39, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.85rem;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slide-in 0.3s ease;
}

.toast.toast-error {
  border-color: var(--accent-rose);
}
.toast.toast-success {
  border-color: var(--accent-green);
}

@keyframes slide-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-dim);
}