/* --------------------------------------------------
   VARS & SYSTEM DESIGN (Vanilla CSS)
   -------------------------------------------------- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-title: 'Outfit', sans-serif;
  
  /* Color Palette - Premium Zinc & Cyan Accents */
  --bg-base: #09090b;       /* Zinc 950 - Fondo general */
  --bg-card: #141416;       /* Zinc 900 modificado - Fondo de tarjetas */
  --bg-sidebar: #0e0e11;    /* Lateral un poco más oscuro que las tarjetas */
  --border-color: #242427;  /* Zinc 800 modificado - Bordes discretos */
  --border-hover: #3f3f46;  /* Zinc 700 */
  
  --text-primary: #fafafa;  /* Zinc 50 */
  --text-secondary: #a1a1aa;/* Zinc 400 */
  --text-muted: #71717a;     /* Zinc 500 */
  
  /* Accent Colors */
  --accent: #06b6d4;        /* Cyan 500 */
  --accent-hover: #0891b2;  /* Cyan 600 */
  --accent-glow: rgba(6, 182, 212, 0.15);
  
  /* Status Colors */
  --success: #10b981;       /* Emerald 500 */
  --success-glow: rgba(16, 185, 129, 0.2);
  --danger: #ef4444;        /* Red 500 */
  --danger-glow: rgba(239, 68, 68, 0.2);
  --warning: #f59e0b;       /* Amber 500 */
  --warning-glow: rgba(245, 158, 11, 0.2);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.15), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hidden {
  display: none !important;
}

/* --------------------------------------------------
   COMMON UTILITIES & BUTTONS
   -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 0 12px var(--accent-glow);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
  background-color: var(--danger);
  color: #fff;
  border-color: var(--danger);
  box-shadow: 0 0 12px var(--danger-glow);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-outline:hover:not(:disabled) {
  background-color: var(--bg-card);
  border-color: var(--border-hover);
}

.btn-outline-danger {
  background-color: transparent;
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}
.btn-outline-danger:hover:not(:disabled) {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* Botón especial para encendido global */
.btn-special {
  background: linear-gradient(135deg, var(--accent) 0%, #3b82f6 100%);
  color: #fff;
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 10px rgba(6, 182, 212, 0.2);
}
.btn-special:hover:not(:disabled) {
  opacity: 0.95;
  box-shadow: 0 6px 15px rgba(6, 182, 212, 0.35);
}

/* Badges de Estado */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
}
.badge-online, .badge-running {
  background-color: rgba(16, 185, 129, 0.1);
  color: #a7f3d0;
  border-color: rgba(16, 185, 129, 0.2);
}
.badge-offline, .badge-terminated {
  background-color: rgba(239, 68, 68, 0.1);
  color: #fecaca;
  border-color: rgba(239, 68, 68, 0.2);
}
.badge-starting, .badge-stopping, .badge-provisioning, .badge-staging {
  background-color: rgba(245, 158, 11, 0.1);
  color: #fde68a;
  border-color: rgba(245, 158, 11, 0.2);
  animation: pulse 2s infinite ease-in-out;
}

/* --------------------------------------------------
   PANTALLA DE LOGIN
   -------------------------------------------------- */
#login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 100%;
  max-width: 420px;
  padding: 40px 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

/* Glow sutil en el login */
.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.logo-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background-color: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 10px;
  margin-bottom: 16px;
}

.logo-icon {
  color: var(--accent);
  width: 28px;
  height: 28px;
}

.login-header h1 {
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-header p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.login-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.btn-google {
  background-color: #ffffff;
  color: #1f2937;
  border-color: #e5e7eb;
  font-weight: 600;
  width: 100%;
  height: 48px;
  transition: background-color 0.2s;
}
.btn-google:hover {
  background-color: #f9fafb;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.08);
}

.google-svg {
  margin-right: 4px;
}

.login-footer {
  text-align: center;
  margin-top: 32px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.login-footer strong {
  color: var(--text-secondary);
}

/* Alertas */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border-radius: 6px;
  font-size: 0.8125rem;
  border: 1px solid transparent;
}
.alert-danger {
  background-color: rgba(239, 68, 68, 0.07);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.15);
}
.alert-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 1px;
}

/* --------------------------------------------------
   DISEÑO DEL DASHBOARD (LAYOUT PRINCIPAL)
   -------------------------------------------------- */
#dashboard-container {
  display: flex;
  min-height: 100vh;
}

/* BARRA LATERAL (SIDEBAR) */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.brand-icon {
  color: var(--accent);
  width: 22px;
  height: 22px;
}

.badge-simulated {
  background-color: rgba(6, 182, 212, 0.1);
  color: var(--accent);
  border-color: rgba(6, 182, 212, 0.2);
  align-self: flex-start;
  font-size: 0.65rem;
}

.sidebar-nav {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-grow: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
}

.nav-item i {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-item:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
}
.nav-item:hover i {
  color: var(--text-primary);
}

.nav-item.active {
  background-color: rgba(6, 182, 212, 0.06);
  color: var(--accent);
}
.nav-item.active i {
  color: var(--accent);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0; /* Permite recortar texto si es muy largo */
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

.user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-info .name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-info .email {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-logout-icon {
  background-color: transparent;
  color: var(--text-muted);
  border: none;
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
}
.btn-logout-icon:hover {
  color: #fecaca;
  background-color: rgba(239, 68, 68, 0.08);
}


/* CONTENIDO PRINCIPAL */
.main-content {
  flex-grow: 1;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  overflow-y: auto;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.header-titles h1 {
  font-size: 2.25rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.header-titles p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.global-status-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 600;
}

.status-dot-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.3s;
}

.pulse-green {
  background-color: var(--success);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: dot-pulse-success 1.5s infinite;
}

.pulse-red {
  background-color: var(--danger);
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: dot-pulse-danger 1.5s infinite;
}

.pulse-yellow {
  background-color: var(--warning);
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  animation: dot-pulse-warning 1.5s infinite;
}


/* NOTIFICACIÓN DE TRANSICIÓN */
.notification-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.15);
  color: var(--accent);
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 0.875rem;
  animation: fadeIn 0.3s ease-out;
}

.spinner {
  width: 18px;
  height: 18px;
  animation: spin 1s linear infinite;
}


/* --------------------------------------------------
   TARJETAS DEL DASHBOARD (GRID)
   -------------------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* La tarjeta de métricas ocupa todo el ancho abajo */
.card-metrics {
  grid-column: span 2;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.08);
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-icon {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.card-header h2 {
  font-size: 1.125rem;
  color: var(--text-primary);
}

.card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex-grow: 1;
}

/* Lista de Información */
.info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
  padding-bottom: 8px;
}
.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-item .label {
  color: var(--text-secondary);
}

.info-item .value {
  font-weight: 500;
  color: var(--text-primary);
}

.font-mono {
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.8125rem;
}

/* IP Copiable */
.copyable {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.03);
  transition: background-color 0.2s;
}
.copyable:hover {
  background-color: rgba(255, 255, 255, 0.08);
}
.copy-icon {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}
.copyable:hover .copy-icon {
  color: var(--text-primary);
}

/* Acciones */
.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: auto;
}

.card-actions-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: auto;
}

.actions-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}


/* SECCIÓN DE MÉTRICAS (METRICS LAYOUT) */
.metrics-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.metric-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.metric-header-inline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.metric-header-inline .label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.metric-header-inline .metric-value {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Barras de Progreso */
.progress-bar-container {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.04);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  background-color: var(--accent); /* Por defecto CPU (Cyan) */
  width: 0%;
  transition: width 0.8s cubic-bezier(0.1, 0.8, 0.3, 1);
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.2);
}

/* Colores de las barras */
.progress-bar-fill.accent-color {
  background-color: #3b82f6; /* Blue 500 para RAM */
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.2);
}

.progress-bar-fill.disk-color {
  background-color: #8b5cf6; /* Violet 500 para Disco */
  box-shadow: 0 0 6px rgba(139, 92, 246, 0.2);
}


/* --------------------------------------------------
   TARJETA DE TERMINAL SSH
   -------------------------------------------------- */
.card-terminal {
  grid-column: span 2;
}

.terminal-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}

.terminal-screen {
  background-color: #0c0c0e;
  padding: 16px 20px;
  min-height: 240px;
  max-height: 400px;
  overflow-y: auto;
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.8125rem;
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Scrollbar minimalista para la terminal */
.terminal-screen::-webkit-scrollbar {
  width: 6px;
}
.terminal-screen::-webkit-scrollbar-track {
  background: transparent;
}
.terminal-screen::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 3px;
}

.terminal-line {
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal-line.system {
  color: var(--text-muted);
  font-style: italic;
}

.terminal-line.command {
  color: var(--accent);
}

.terminal-line.stdout {
  color: var(--text-secondary);
}

.terminal-line.stderr {
  color: #f87171;
}

.terminal-line.error {
  color: #fbbf24;
}

.terminal-form {
  display: flex;
  align-items: center;
  gap: 0;
  background-color: #0c0c0e;
  border-top: 1px solid var(--border-color);
  padding: 0;
}

.terminal-prompt {
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.8125rem;
  color: var(--accent);
  padding: 10px 0 10px 20px;
  white-space: nowrap;
  user-select: none;
  flex-shrink: 0;
}

.terminal-input {
  flex-grow: 1;
  background-color: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.8125rem;
  padding: 10px 12px;
  caret-color: var(--accent);
}

.terminal-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.terminal-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.terminal-form .btn {
  border-radius: 0;
  height: 100%;
  border: none;
  border-left: 1px solid var(--border-color);
}/* --------------------------------------------------
   ANIMACIONES
   -------------------------------------------------- */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Pulsación de los puntos de estado */
@keyframes dot-pulse-success {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes dot-pulse-danger {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(239, 68, 68, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

@keyframes dot-pulse-warning {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(245, 158, 11, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0);
  }
}


/* --------------------------------------------------
   RESPONSIVENESS
   -------------------------------------------------- */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .card-metrics {
    grid-column: span 1;
  }
  
  .metrics-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  #dashboard-container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .sidebar-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
  }
  
  .sidebar-nav {
    flex-direction: row;
    padding: 10px 24px;
    gap: 8px;
    overflow-x: auto;
  }
  
  .nav-item {
    white-space: nowrap;
  }
  
  .sidebar-footer {
    padding: 12px 24px;
  }
  
  .main-content {
    padding: 24px;
  }
  
  .content-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  
  .global-status-card {
    width: 100%;
    text-align: center;
    display: flex;
    justify-content: center;
  }
}

/* --------------------------------------------------
   SOPORTE PARA BOTONES NAV-ITEM Y PESTAÑAS (TABS)
   -------------------------------------------------- */
button.nav-item {
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.view-section.hidden {
  display: none !important;
}

.view-section {
  animation: fadeIn 0.25s ease-out;
}