:root {
  --bg: #181818;
  --panel: #1c1c1c;
  --panel-hover: #232323;
  --border: rgba(255, 255, 255, 0.06);
  --accent: #3ecf8e;
  --accent-hover: #2db873;
  --text: #ededed;
  --text-light: #a1a1a1;
  --danger: #f04438;
  --warning: #f79009;
  --mono: 'IBM Plex Mono', Monaco, 'Courier New', monospace;
  --display: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--display);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.shell {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
}

.brand-dot {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #000;
}

.brand-dot::before {
  content: 'S';
}

.content {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
}

.muted {
  color: var(--text-light);
  font-size: 13px;
}

.title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 12px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

button,
.button {
  border: none;
  cursor: pointer;
  border-radius: 6px;
  padding: 6px 12px;
  font-weight: 500;
  font-size: 13px;
  font-family: var(--display);
  transition: all 0.15s ease;
  color: #000;
  background: var(--accent);
  border: 1px solid transparent;
}

button:hover:not(:disabled) {
  background: var(--accent-hover);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Button variants */
.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 500;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover:not(:disabled) {
  background: var(--panel-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--border);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(240, 68, 56, 0.1);
  border-color: var(--danger);
}

.btn-action {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.btn-action:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-action-danger {
  color: var(--danger);
}

.btn-action-danger:hover:not(:disabled) {
  background: rgba(240, 68, 56, 0.1);
  border-color: var(--danger);
}

.btn-action:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.scroll-hidden::-webkit-scrollbar {
  width: 0px;
  display: none;
}

.scroll-hidden {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

/* Legacy support */
button.secondary,
.button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

button.secondary:hover:not(:disabled) {
  background: var(--panel-hover);
  border-color: rgba(255, 255, 255, 0.12);
}

button.destructive {
  background: var(--danger);
  color: #fff;
}

button.destructive:hover:not(:disabled) {
  background: #d93c31;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  font-size: 15px;
}

input:focus {
  outline: 2px solid rgba(94, 242, 196, 0.5);
}

.field {
  margin-bottom: 14px;
}

.form-card {
  max-width: 460px;
  margin: 0 auto;
  padding: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
}

.badge.running {
  color: #0b3324;
  background: rgba(36, 174, 95, 0.85);
  border: none;
}

.badge.partial {
  background: rgba(255, 209, 102, 0.2);
  color: #ffdf8a;
}

.badge.stopped,
.badge.not_created {
  background: rgba(255, 123, 123, 0.18);
  color: #ff9b9b;
}

.instance-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.instance-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px 12px;
  margin: 10px 0 14px;
}

.meta-label {
  font-size: 12px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.meta-value {
  font-family: var(--mono);
  font-size: 13px;
}

.instance-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  padding: 4px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text);
}

.message {
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(94, 242, 196, 0.12);
  border: 1px solid rgba(94, 242, 196, 0.4);
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.message.success {
  background: rgba(36, 174, 95, 0.15);
  border-color: rgba(36, 174, 95, 0.5);
}

.message.success::before {
  content: '✅';
  font-size: 16px;
}

.message.error {
  background: rgba(255, 123, 123, 0.15);
  border-color: rgba(255, 123, 123, 0.5);
}

.message.error::before {
  content: '❌';
  font-size: 16px;
}

.message.info::before {
  content: 'ℹ️';
  font-size: 16px;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  z-index: 10;
}

.modal.active {
  display: flex;
}

.modal-body {
  background: #1a1a1a;
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 0;
  max-width: 900px;
  width: min(92vw, 900px);
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.modal-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px;
}

/* Hide scrollbar when not needed, show only when scrolling */
.modal-content::-webkit-scrollbar {
  width: 8px;
}

.modal-content::-webkit-scrollbar-track {
  background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* For Firefox */
.modal-content {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

pre {
  background: #0d0d0d;
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

textarea.code-editor {
  width: 100%;
  min-height: 400px;
  background: #0d0d0d;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  resize: vertical;
}

textarea.code-editor:focus {
  outline: none;
  border-color: var(--accent);
}

.loader-wrap {
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 12px 0 4px;
}

.loader {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.08);
  border-top-color: var(--accent);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.small {
  font-size: 13px;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.progress-step.pending {
  opacity: 0.5;
}

.progress-step.active {
  background: rgba(36, 174, 95, 0.1);
  border-color: rgba(36, 174, 95, 0.4);
  opacity: 1;
  animation: pulse 2s ease-in-out infinite;
}

.progress-step.done {
  background: rgba(36, 174, 95, 0.15);
  border-color: rgba(36, 174, 95, 0.5);
  opacity: 1;
}

.step-icon {
  font-size: 18px;
  min-width: 24px;
  text-align: center;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.error-section {
  margin-top: 16px;
}

.error-section ol {
  line-height: 1.6;
}

details summary {
  user-select: none;
}

details[open] summary {
  margin-bottom: 12px;
}

@media (max-width: 640px) {
  body {
    padding: 16px;
  }
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .actions {
    width: 100%;
  }
  .actions button {
    width: 100%;
  }
}