/* FinanZas — Premium Dark Mode Design System */

:root {
  --bg-primary: #0a0f1c;
  --bg-secondary: #111827;
  --bg-card: rgba(20, 28, 48, 0.7);
  --bg-card-hover: rgba(28, 38, 64, 0.85);
  --bg-input: rgba(255, 255, 255, 0.05);
  --bg-input-focus: rgba(255, 255, 255, 0.08);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-color-hover: rgba(255, 255, 255, 0.12);
  
  --accent: #00d4aa;
  --accent-hover: #00f7c6;
  --accent-glow: rgba(0, 212, 170, 0.2);
  --accent-secondary: #6366f1;
  --accent-gradient: linear-gradient(135deg, #00d4aa 0%, #6366f1 100%);
  --accent-gradient-hover: linear-gradient(135deg, #00f7c6 0%, #4f46e5 100%);
  
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.15);
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.15);
  --info: #3b82f6;
  --info-glow: rgba(59, 130, 246, 0.15);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--accent-glow);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

/* 1. Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* 2. Layout Structure */
.app-container {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Sidebar Desktop */
.sidebar {
  width: 280px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  padding-left: 0.5rem;
}

.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 10px rgba(0, 212, 170, 0.4));
  animation: pulse 2s infinite ease-in-out;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
}

.nav-link:hover svg {
  stroke: var(--text-primary);
}

.nav-link.active {
  color: var(--accent);
  background-color: rgba(0, 212, 170, 0.08);
  box-shadow: inset 0 0 0 1px rgba(0, 212, 170, 0.15);
}

.nav-link.active svg {
  stroke: var(--accent);
}

.sidebar-footer {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

/* Main Content Area */
.main-content {
  flex-grow: 1;
  margin-left: 280px;
  padding: 2rem 3rem;
  min-height: 100vh;
  background-color: var(--bg-primary);
  transition: var(--transition);
}

#app-content {
  max-width: 1200px;
  margin: 0 auto;
  transition: var(--transition);
  animation: fadeIn 0.4s ease-out;
}

/* Bottom Nav (Mobile) */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 70px;
  background-color: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-color);
  justify-content: space-around;
  align-items: center;
  z-index: 100;
  padding: 0 1rem;
}

.bottom-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--transition-fast);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  min-width: 60px;
}

.bottom-nav-link svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  transition: var(--transition-fast);
}

.bottom-nav-link:hover,
.bottom-nav-link.active {
  color: var(--accent);
}

.bottom-nav-link.active svg {
  stroke: var(--accent);
}

/* 3. Typography & Headers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  gap: 1rem;
  animation: slideUp 0.3s ease-out;
}

.page-title {
  font-size: 2rem;
  font-weight: 800;
  position: relative;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* 4. Grids & Flex Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

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

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* 5. Cards & Glassmorphism */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Stat Cards */
.stat-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.stat-details {
  flex-grow: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 0.15rem;
  letter-spacing: -0.5px;
}

.stat-trend {
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.25rem;
}

.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

/* Card destacada (Balance principal) */
.featured-card {
  background: radial-gradient(circle at top right, rgba(0, 212, 170, 0.12), rgba(99, 102, 241, 0.05)), var(--bg-card);
  border-color: rgba(0, 212, 170, 0.2);
  box-shadow: var(--shadow-glow);
}

.featured-card::before {
  background: var(--accent-gradient);
}

.featured-value {
  font-size: 2.75rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0.5rem 0;
  letter-spacing: -1px;
}

/* 6. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #050811;
  box-shadow: 0 4px 14px rgba(0, 212, 170, 0.25);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-input-focus);
  border-color: var(--border-color-hover);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.2);
  border-color: var(--danger);
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
}

.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-primary);
  background-color: var(--bg-input-focus);
  border-color: var(--border-color-hover);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* Floating Action Button (Mobile) */
.fab {
  position: fixed;
  bottom: 85px;
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #050811;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.4);
  z-index: 99;
  cursor: pointer;
  transition: var(--transition);
}

.fab:active {
  transform: scale(0.95);
}

/* 7. Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background-color: var(--bg-input-focus);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  margin-top: 0.5rem;
}

.form-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* 8. Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(5, 8, 17, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: 100%;
  max-width: 500px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* 9. Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1rem 1.25rem;
}

th {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

td {
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

/* 10. List Views (Cards en lista) */
.list-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.list-item:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateX(2px);
}

.list-item-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
}

.list-item-details {
  display: flex;
  flex-direction: column;
}

.list-item-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.list-item-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.list-item-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.list-item-value {
  font-weight: 700;
  font-size: 1.05rem;
}

/* 11. Badges & Status */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.2px;
}

.badge-success { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge-danger { background-color: rgba(239, 68, 68, 0.1); color: var(--danger); }
.badge-warning { background-color: rgba(245, 158, 11, 0.1); color: var(--warning); }
.badge-info { background-color: rgba(59, 130, 246, 0.1); color: var(--info); }

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.success { background-color: var(--success); box-shadow: 0 0 8px var(--success); }
.status-dot.danger { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }
.status-dot.warning { background-color: var(--warning); box-shadow: 0 0 8px var(--warning); }

/* 12. Progress Bar */
.progress-container {
  margin-top: 0.75rem;
}
.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}
.progress-bar {
  height: 8px;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--accent-gradient);
  transition: width 0.5s ease-out;
}

/* 13. Toasts */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  max-width: 450px;
  animation: slideInRight 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition: var(--transition);
}

.toast-exit {
  animation: slideOutRight 0.3s forwards ease-in;
}

.toast-icon {
  font-size: 1.25rem;
}

.toast-message {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }
.toast-info { border-left: 4px solid var(--info); }

/* 14. Filters & Search */
.filter-bar {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  align-items: center;
  background-color: var(--bg-card);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.filter-input {
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.filter-input:focus {
  border-color: var(--accent);
}

/* 15. Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-color);
  animation: fadeIn 0.4s ease-out;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.1));
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  max-width: 400px;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

/* 16. Chart Container */
.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Color Coding values */
.amount-positive {
  color: var(--success);
}
.amount-negative {
  color: var(--danger);
}

/* Utility text colors */
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }

/* Tarjeta card styles */
.tarjeta-card .card-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.tarjeta-saldo {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.saldo-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.saldo-valor {
  font-weight: 700;
  font-size: 1rem;
}

.card-actions-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  margin-top: 0.5rem;
}

/* Detail list for tarjeta modal */
.detalle-lista {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.detalle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.detalle-item:last-child {
  border-bottom: none;
}

.detalle-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

/* 17. Animations Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInRight {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOutRight {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(120%); opacity: 0; }
}

@keyframes pulse {
  0% { transform: scale(1); filter: drop-shadow(0 0 5px rgba(0, 212, 170, 0.2)); }
  50% { transform: scale(1.05); filter: drop-shadow(0 0 15px rgba(0, 212, 170, 0.5)); }
  100% { transform: scale(1); filter: drop-shadow(0 0 5px rgba(0, 212, 170, 0.2)); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.1) 37%, rgba(255, 255, 255, 0.05) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: var(--radius-sm);
  display: inline-block;
}

/* 18. Media Queries & Responsive */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    pointer-events: none;
    width: 0;
    padding: 0;
    border: none;
  }
  
  .main-content {
    margin-left: 0;
    padding: 1.5rem 1rem 90px 1rem; /* Margen inferior para que no tape el bottom nav */
  }
  
  .bottom-nav {
    display: flex;
  }
  
  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .fab {
    display: flex;
  }
  
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .page-header .btn {
    width: 100%;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}