/* Reset y configuración base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --secondary: #10b981;
  --accent: #f59e0b;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --info: #3b82f6;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Login Page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.login-container {
  background: var(--bg-primary);
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 400px;
  text-align: center;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.login-container h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-container input {
  width: 100%;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--bg-secondary);
}

.login-container input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.login-container button {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.login-container button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Layout principal */
.container {
  display: flex;
  min-height: 100vh;
  background: var(--bg-secondary);
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  box-shadow: var(--shadow-lg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.logo {
  text-align: center;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.logo img {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.sidebar nav {
  flex: 1;
}

.sidebar nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar nav ul li {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.sidebar nav ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transition: var(--transition);
  z-index: -1;
}

.sidebar nav ul li:hover::before,
.sidebar nav ul li.active::before {
  width: 100%;
}

.sidebar nav ul li:hover,
.sidebar nav ul li.active {
  color: white;
  transform: translateX(4px);
}

.logout-btn {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  margin-top: auto;
}

.logout-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Main content */
.main {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
  background: var(--bg-secondary);
}

/* Dashboard sections */
.dashboard-section {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.dashboard-section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
  position: relative;
}

.dashboard-section h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.dashboard-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 1rem 0;
  color: var(--text-primary);
  padding-left: 1rem;
  border-left: 4px solid var(--primary);
}

/* Quick Actions */
.actions-quick {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.quick-btn {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quick-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.quick-btn::before {
  content: '⚡';
  font-size: 1.1em;
}

/* Summary Cards */
.summary-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.summary-card {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.summary-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.summary-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.summary-card h3 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-card p {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

/* Chart wrapper */
.chart-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: 400px;
  margin: 2rem auto;
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

/* Recent clients list */
.recent-list {
  list-style: none;
  margin-top: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.recent-list li {
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.recent-list li:last-child {
  border-bottom: none;
}

.recent-list li:hover {
  background: var(--bg-primary);
}

/* Dashboard header */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border-light);
}

.dashboard-header button {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--secondary), #059669);
  color: white;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dashboard-header button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Clientes lista */
.clientes-lista {
  margin-top: 2rem;
}

.cliente {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  align-items: center;
  padding: 1.5rem;
  margin-bottom: 1rem;
  background: var(--bg-primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.cliente:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.cliente-nombre {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.cliente-plan {
  justify-self: center;
  background: linear-gradient(135deg, var(--success), #059669);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cliente-domain {
  text-align: right;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-family: 'Monaco', 'Menlo', monospace;
  overflow-wrap: anywhere;
}

/* Formulario */
.formulario {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
}

.form-section {
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.form-section h3 {
  margin: 0 0 1.5rem 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border-light);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

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

.form-group label {
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  padding: 0.875rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  background: var(--bg-primary);
}

.form-actions {
  text-align: right;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 2px solid var(--border-light);
}

.form-actions button {
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--success), #059669);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.form-actions button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.form-actions button::before {
  content: '➕';
  font-size: 1.2em;
}

/* Chart section */
.chart-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.recent-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    padding: 1rem;
  }
  
  .main {
    padding: 1rem;
  }
  
  .dashboard-section {
    padding: 1.5rem;
  }
  
  .summary-container {
    grid-template-columns: 1fr;
  }
  
  .actions-quick {
    flex-direction: column;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-section {
    padding: 1rem;
  }
  
  .formulario {
    padding: 1.5rem;
  }
}

/* Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dashboard-section {
  animation: fadeIn 0.6s ease-out;
}

.summary-card {
  animation: fadeIn 0.6s ease-out;
  animation-delay: calc(var(--animation-order, 0) * 0.1s);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

/* Estilos adicionales para mejor UX */
.hidden {
  display: none !important;
}

/* Mejoras en los inputs */
.form-group input:invalid,
.form-group select:invalid {
  border-color: var(--danger);
}

.form-group input:valid,
.form-group select:valid {
  border-color: var(--success);
}

/* Hover effects mejorados */
.quick-btn:hover,
.dashboard-header button:hover,
.form-actions button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Focus states mejorados */
.quick-btn:focus,
.dashboard-header button:focus,
.form-actions button:focus,
.form-group input:focus,
.form-group select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Animaciones de entrada para las secciones */
.dashboard-section {
  animation: fadeIn 0.6s ease-out;
}

.summary-card {
  animation: fadeIn 0.6s ease-out;
  animation-delay: calc(var(--animation-order, 0) * 0.1s);
}

/* Mejoras en el sidebar */
.sidebar nav ul li {
  position: relative;
  overflow: hidden;
}

.sidebar nav ul li::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid var(--primary);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: var(--transition);
}

.sidebar nav ul li.active::after {
  width: 6px;
}

/* Mejoras en las cards */
.summary-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* Mejoras en la lista de clientes */
.cliente:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

/* Mejoras en el formulario */
.form-section:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

/* Estados de loading */
.loading-spinner {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Mejoras en el chart */
.chart-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: 400px;
  margin: 2rem auto;
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.chart-wrapper:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Mejoras en la lista reciente */
.recent-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.recent-list li:hover {
  background: var(--bg-primary);
  transform: translateX(4px);
}

.plan-badge {
  background: linear-gradient(135deg, var(--success), #059669);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Responsive mejorado */
@media (max-width: 1024px) {
  .sidebar {
    width: 240px;
  }
  
  .form-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    padding: 1rem;
  }
  
  .main {
    padding: 1rem;
  }
  
  .dashboard-section {
    padding: 1.5rem;
  }
  
  .summary-container {
    grid-template-columns: 1fr;
  }
  
  .actions-quick {
    flex-direction: column;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-section {
    padding: 1rem;
  }
  
  .formulario {
    padding: 1.5rem;
  }
  
  .chart-wrapper {
    height: 300px;
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .dashboard-section {
    padding: 1rem;
  }
  
  .formulario {
    padding: 1rem;
  }
  
  .form-section {
    padding: 0.75rem;
  }
  
  .summary-card {
    padding: 1.5rem;
  }
  
  .summary-card p {
    font-size: 2rem;
  }
}