:root {
  --bg-primary: #0a0d12;
  --bg-secondary: #121820;
  --bg-tertiary: #1b232e;
  --bg-glass: rgba(18, 24, 32, 0.92);
  --border-color: #2a3644;
  --border-highlight: #388bfd;
  --text-primary: #f0f6fc;
  --text-secondary: #9aa7b5;
  --text-muted: #627282;
  --accent-blue: #388bfd;
  --accent-green: #2ea043;
  --accent-orange: #d29922;
  --accent-red: #f85149;
  --accent-purple: #a371f7;
  --accent-cyan: #00d2ff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
}

/* Sidebar */
.sidebar {
  width: 320px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 10;
  height: 100%;
}

.sidebar-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-row h1 {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.status-badge {
  font-size: 0.72rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 12px;
  background: rgba(46, 160, 67, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(46, 160, 67, 0.3);
}

.status-badge.saving {
  background: rgba(210, 153, 34, 0.15);
  color: var(--accent-orange);
  border-color: rgba(210, 153, 34, 0.3);
}

.status-badge.error {
  background: rgba(248, 81, 73, 0.15);
  color: var(--accent-red);
  border-color: rgba(248, 81, 73, 0.3);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Search Box */
.search-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px 10px 38px;
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(56, 139, 253, 0.2);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-top: 4px;
  max-height: 240px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: var(--shadow);
  display: none;
}

.search-item {
  padding: 9px 12px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.84rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.search-item:hover {
  background-color: rgba(56, 139, 253, 0.15);
  color: var(--accent-blue);
}

/* Stats */
.stats-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
}

.stat-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.stat-lbl {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Cards */
.card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
}

.card-title {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 600;
}

/* Action Buttons */
.action-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 0.84rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background-color: #242f3e;
  border-color: #415163;
}

.btn-primary {
  background-color: #1f6feb;
  border-color: #388bfd;
  color: #fff;
}

.btn-primary:hover {
  background-color: #388bfd;
}

.btn-success {
  background-color: #238636;
  border-color: #2ea043;
  color: #fff;
}

.btn-success:hover {
  background-color: #2ea043;
}

.btn-orange {
  background-color: #9e5f0d;
  border-color: #d29922;
  color: #fff;
}

.btn-orange:hover {
  background-color: #bb7211;
}

/* Viewport Canvas */
.viewport-container {
  flex: 1;
  position: relative;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, #131a24 0%, #0a0d12 100%);
}

#network-canvas {
  width: 100%;
  height: 100%;
}

/* Empty State */
.empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  max-width: 440px;
  background: var(--bg-glass);
  padding: 30px;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  pointer-events: none;
}

.empty-state h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.empty-state p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Floating Bar */
.floating-bar {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 6px;
  display: flex;
  gap: 6px;
  box-shadow: var(--shadow);
  z-index: 20;
}

.floating-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.floating-btn:hover {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

/* Detail Drawer */
.detail-drawer {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 380px;
  max-height: 80vh;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  z-index: 30;
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.drawer-header {
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-header h3 {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.drawer-body {
  padding: 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-section {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 10px;
  font-size: 0.85rem;
}

.detail-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.item-chip {
  display: inline-block;
  background: rgba(255, 255, 255, 0.06);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 480px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1rem;
}

.modal-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-control {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  color: var(--text-primary);
  font-size: 0.88rem;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent-blue);
}

.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 110;
  pointer-events: none;
}

.toast {
  background: var(--bg-glass);
  border: 1px solid var(--border-highlight);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  font-size: 0.86rem;
  animation: fadeInOut 3s forwards;
}

@keyframes fadeInOut {
  0% { opacity: 0; transform: translateY(10px); }
  15% { opacity: 1; transform: translateY(0); }
  85% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-10px); }
}

/* Banner de Actualización de Código / Nueva Versión */
.app-update-banner {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, rgba(27, 35, 46, 0.96), rgba(18, 24, 32, 0.98));
  border: 1.5px solid #388bfd;
  box-shadow: 0 10px 35px rgba(56, 139, 253, 0.35), 0 4px 15px rgba(0,0,0,0.6);
  border-radius: var(--radius-md);
  padding: 12px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 1000;
  backdrop-filter: blur(12px);
  animation: slideDownBanner 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDownBanner {
  from { opacity: 0; transform: translate(-50%, -30px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.app-update-banner .update-content {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-update-banner .update-icon {
  font-size: 1.25rem;
  animation: bounceUpdate 1.5s infinite;
}

@keyframes bounceUpdate {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.app-update-banner .update-text {
  font-size: 0.9rem;
  color: #f0f6fc;
  font-weight: 500;
}

.app-update-banner .update-text strong {
  color: #58a6ff;
}

.app-update-banner .update-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-update-banner .btn-update {
  background: #238636;
  color: #ffffff;
  border: 1px solid #2ea043;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.app-update-banner .btn-update:hover {
  background: #2ea043;
  box-shadow: 0 0 10px rgba(46, 160, 67, 0.5);
}

.app-update-banner .btn-dismiss {
  background: transparent;
  color: #8b949e;
  border: 1px solid #30363d;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
}

.app-update-banner .btn-dismiss:hover {
  background: rgba(255,255,255,0.06);
  color: #c9d1d9;
}