@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-main: #1E1E2E;
  --bg-surface: #252538;
  --bg-card: #181825;
  --accent-network: #89B4FA;
  --accent-ops: #FAB387;
  --text-main: #CDD6F4;
  --text-muted: #A6ADC8;
  --text-dark: #11111B;
  --border: #313244;
  --danger: #F38BA8;
  --success: #A6E3A1;
  --warning: #F9E2AF;
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 15px rgba(137, 180, 250, 0.2);
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Sidebar Navigation */
.sidebar {
  width: 260px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
  transition: all 0.3s ease;
}

.brand {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.brand svg {
  width: 38px;
  height: 38px;
}

.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.brand-text span {
  color: var(--accent-ops);
}

.nav-menu {
  list-style: none;
  padding: 20px 12px;
  flex-grow: 1;
}

.nav-item {
  margin-bottom: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background-color: var(--bg-surface);
  color: var(--accent-network);
  transform: translateX(4px);
}

.nav-link.active {
  background-color: rgba(137, 180, 250, 0.1);
  color: var(--accent-network);
  border-left: 3px solid var(--accent-network);
}

.nav-link svg {
  width: 20px;
  height: 20px;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Main Layout */
.main-content {
  margin-left: 260px;
  flex-grow: 1;
  padding: 40px;
  max-width: 1600px;
  width: calc(100% - 260px);
}

/* Header */
.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.page-title h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.page-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--bg-surface);
  padding: 8px 16px;
  border-radius: 50px;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent-ops);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-main);
  font-weight: 700;
}

/* Cards & Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.metric-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-network);
  box-shadow: var(--shadow-glow), var(--shadow-md);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-network);
}

.metric-card.orange::before {
  background: var(--accent-ops);
}

.metric-card.red::before {
  background: var(--danger);
}

.metric-card.green::before {
  background: var(--success);
}

.metric-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-network);
}

.metric-card.orange .metric-icon {
  color: var(--accent-ops);
}

.metric-card.red .metric-icon {
  color: var(--danger);
}

.metric-card.green .metric-icon {
  color: var(--success);
}

.metric-icon svg {
  width: 28px;
  height: 28px;
}

.metric-data h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.metric-data .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

/* Dashboard Content Grid */
.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-md);
  margin-bottom: 32px;
}

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

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title svg {
  width: 22px;
  height: 22px;
  color: var(--accent-ops);
}

/* Tables */
.table-container {
  overflow-x: auto;
}

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

.custom-table th {
  padding: 14px 16px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

.custom-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-main);
}

.custom-table tbody tr {
  transition: background-color 0.2s ease;
}

.custom-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid transparent;
}

.badge-stock {
  background-color: rgba(166, 173, 200, 0.1);
  color: var(--text-muted);
  border-color: rgba(166, 173, 200, 0.2);
}

.badge-asignado {
  background-color: rgba(137, 180, 250, 0.1);
  color: var(--accent-network);
  border-color: rgba(137, 180, 250, 0.2);
}

.badge-mantenimiento {
  background-color: rgba(250, 179, 135, 0.1);
  color: var(--accent-ops);
  border-color: rgba(250, 179, 135, 0.2);
}

.badge-baja {
  background-color: rgba(243, 139, 168, 0.1);
  color: var(--danger);
  border-color: rgba(243, 139, 168, 0.2);
}

/* Semáforo visual indicators */
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.status-dot.green {
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-dot.yellow {
  background-color: var(--accent-ops);
  box-shadow: 0 0 8px var(--accent-ops);
}

.status-dot.red {
  background-color: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

/* Timeline */
.timeline {
  list-style: none;
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  width: 2px;
  height: 100%;
  background-color: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.timeline-marker {
  position: absolute;
  left: -22px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--accent-ops);
  border: 3px solid var(--bg-card);
}

.timeline-marker.prev {
  background-color: var(--accent-network);
}

.timeline-content {
  background-color: var(--bg-surface);
  border-radius: 8px;
  padding: 12px 16px;
  border: 1px solid var(--border);
}

.timeline-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  font-family: var(--font-sans);
}

.btn-primary {
  background-color: var(--accent-network);
  color: var(--text-dark);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(137, 180, 250, 0.3);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: var(--border);
  color: var(--text-main);
}

.btn-warning {
  background-color: var(--accent-ops);
  color: var(--text-dark);
}

.btn-warning:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(250, 179, 135, 0.3);
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: 8px;
  padding: 12px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-network);
  box-shadow: var(--shadow-glow);
}

.form-control-inline {
  display: flex;
  gap: 12px;
}

/* Filters & Search */
.filters-bar {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 28px;
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex-grow: 1;
}

.search-input-wrapper input {
  padding-left: 40px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
}

.filter-select {
  min-width: 180px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
}

/* Info Details Row */
.details-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.detail-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.detail-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.detail-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
}

.detail-value.mono {
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

/* Notifications / Messages */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  font-weight: 500;
  border: 1px solid transparent;
}

.alert-success {
  background-color: rgba(166, 227, 161, 0.1);
  color: var(--success);
  border-color: rgba(166, 227, 161, 0.2);
}

.alert-error {
  background-color: rgba(243, 139, 168, 0.1);
  color: var(--danger);
  border-color: rgba(243, 139, 168, 0.2);
}

/* Responsive & Grid Helpers */
.form-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 70px;
    align-items: center;
  }
  .brand {
    padding: 16px 0;
    justify-content: center;
  }
  .nav-menu {
    padding: 20px 8px;
    width: 100%;
  }
  .nav-link {
    justify-content: center;
    padding: 12px;
  }
  .brand-text, .sidebar-footer, .nav-link span {
    display: none;
  }
  .main-content {
    margin-left: 70px;
    width: calc(100% - 70px);
    padding: 24px 16px;
  }
}

@media (max-width: 600px) {
  .form-grid-2col {
    grid-template-columns: 1fr;
  }
  .form-grid-2col > * {
    grid-column: span 1 !important;
  }
  .top-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .user-badge {
    align-self: flex-end;
  }
}

@media (max-width: 480px) {
  .filters-bar > * {
    width: 100% !important;
  }
  .filter-select {
    width: 100% !important;
  }
  .btn {
    width: 100% !important;
    justify-content: center;
  }
}