/* ========== VARIABLES DE TEMA ========== */
:root {
  --color-primary: #1e40af;
  --color-primary-light: #3b82f6;
  --color-surface: #ffffff;
  --color-surface-alt: #f8fafc;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-info: #0284c7;
}

.dark {
  --color-surface: #0f172a;
  --color-surface-alt: #1e293b;
  --color-border: #334155;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
}

/* ========== RESET Y BASE ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #f8fafc;
  color: var(--color-text);
  line-height: 1.5;
}

body.dark {
  background: #0f172a;
}

/* ========== FLATICON ICON SIZES ========== */
.icon-xs { font-size: 0.75rem; }
.icon-sm { font-size: 0.875rem; }
.icon-md { font-size: 1rem; }
.icon-lg { font-size: 1.25rem; }
.icon-xl { font-size: 1.5rem; }

/* ========== APP CONTAINER ========== */
.app {
  min-height: 100vh;
  padding: 24px;
  transition: background 0.2s ease;
}

/* ========== HEADER ========== */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px;
  margin: -24px -24px 24px -24px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}

.header .title {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
  line-height: 1.3;
}

.header .subtitle {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin: 0;
  font-weight: 400;
}

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

.btn-icon-only {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.15s ease;
}

.btn-icon-only:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: var(--color-text-secondary);
}

/* ========== BUTTONS ========== */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  height: 40px;
}

.btn-primary:hover { background: var(--color-primary-light); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary {
  flex: 1;
  padding: 10px 16px;
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.btn-outline {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.btn-text {
  display: flex;
  align-items: center;
  gap: 2px;
  background: none;
  border: none;
  color: var(--color-primary-light);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
}

/* ========== SEARCH ========== */
.search-wrapper {
  position: relative;
  margin-bottom: 16px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.search-input {
  width: 100%;
  padding: 10px 12px 10px 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: border-color 0.15s ease;
  box-sizing: border-box;
  font-family: inherit;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ========== ERROR BANNER ========== */
.error-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.error-banner.hidden { display: none; }

.error-content {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #991b1b;
  font-size: 0.85rem;
}

.error-content strong { display: block; font-size: 0.85rem; }
.error-content span { font-size: 0.8rem; opacity: 0.8; }

.error-retry {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #dc2626;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

/* ========== METRICS ========== */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px;
  transition: box-shadow 0.2s ease;
}

.metric-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.metric-card.accent {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.metric-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.metric-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.accent-bg { background: rgba(255,255,255,0.2); color: white; }
.warning-bg { background: #fef3c7; color: #d97706; }
.info-bg { background: #e0f2fe; color: #0284c7; }
.success-bg { background: #d1fae5; color: #059669; }

.dark .warning-bg { background: rgba(217, 119, 6, 0.15); }
.dark .info-bg { background: rgba(2, 132, 199, 0.15); }
.dark .success-bg { background: rgba(5, 150, 105, 0.15); }

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}

.metric-card.accent .metric-value { color: white; }

.metric-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.metric-card.accent .metric-label { color: rgba(255, 255, 255, 0.8); }

.metric-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.metric-pct {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.metric-bar {
  height: 3px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}

.metric-card.accent .metric-bar {
  background: rgba(255, 255, 255, 0.2);
  margin-top: 10px;
}

.dark .metric-bar { background: rgba(255, 255, 255, 0.08); }
.dark .metric-card { background: var(--color-surface-alt); border-color: var(--color-border); }
.dark .metric-card.accent { background: var(--color-primary); border-color: var(--color-primary); }

.bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.6s ease;
}

.accent-bar { background: rgba(255, 255, 255, 0.7); }
.warning-bar { background: #d97706; }
.info-bar { background: #0284c7; }
.success-bar { background: #059669; }

/* ========== FILTER BAR ========== */
.filter-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 20px;
}

.dark .filter-bar {
  background: var(--color-surface-alt);
  border-color: var(--color-border);
}

.active-banner {
  display: none;
  justify-content: space-between;
  align-items: center;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #1e40af;
}

.active-banner.visible { display: flex; }

.dark .active-banner {
  background: rgba(30, 64, 175, 0.12);
  border-color: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
}

.banner-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-clear {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.btn-clear:hover { background: rgba(30, 64, 175, 0.1); }

.filter-section { margin-bottom: 12px; }
.filter-section:last-child { margin-bottom: 0; }

.section-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 8px 0;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  font-family: inherit;
}

.dark .chip { background: var(--color-surface); border-color: var(--color-border); }

.chip:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.chip.active.priority-high { background: #dc2626; border-color: #dc2626; }
.chip.active.priority-medium { background: #d97706; border-color: #d97706; }
.chip.active.priority-low { background: #059669; border-color: #059669; }

.chip-count {
  background: rgba(255, 255, 255, 0.2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  min-width: 18px;
  text-align: center;
}

.chip:not(.active) .chip-count {
  background: var(--color-primary);
  color: white;
}

/* ========== EQUIPMENT SECTION ========== */
.equipment-section { margin-top: 4px; }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.filtered-tag {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-primary-light);
  margin-left: 4px;
}

.filter-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-light);
  background: #eff6ff;
  padding: 2px 8px;
  border-radius: 4px;
}

.equipment-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ========== EQUIPMENT CARD ========== */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.card:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border-color: var(--color-primary-light);
}

.dark .card { background: var(--color-surface-alt); border-color: var(--color-border); }
.dark .card:hover { border-color: var(--color-primary-light); box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2); }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 12px;
}

.equip-info {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.equip-icon {
  width: 38px;
  height: 38px;
  background: #f1f5f9;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.dark .equip-icon { background: rgba(59, 130, 246, 0.1); }

.equip-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.equip-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.3;
}

.client-name {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.serial {
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  opacity: 0.7;
}

.badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.badge {
  padding: 3px 8px;
  border-radius: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1px solid;
  white-space: nowrap;
}

.issue-text {
  margin: 0 0 12px 0;
  font-size: 0.825rem;
  line-height: 1.5;
  color: var(--color-text);
  opacity: 0.85;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
}

.info-item i { color: var(--color-text-secondary); opacity: 0.6; }
.info-label { color: var(--color-text-secondary); font-weight: 400; }
.info-value { color: var(--color-text); font-weight: 600; margin-left: auto; }

.card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.card:hover .card-actions,
.card:focus .card-actions { opacity: 1; }

.status-control {
  display: flex;
  align-items: center;
  gap: 6px;
}

.action-label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.status-select {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  font-size: 0.75rem;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
}

.delete-btn {
  background: none;
  border: 1px solid #fecaca;
  color: #dc2626;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.delete-btn:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: white;
}

/* ========== EMPTY STATE ========== */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-secondary);
}

.empty-icon {
  font-size: 2.5rem;
  opacity: 0.3;
  display: block;
  margin-bottom: 12px;
}

.empty-state h3 {
  margin: 0 0 4px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.empty-state p { margin: 0 0 16px 0; font-size: 0.85rem; }

/* ========== SPINNER ========== */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: 0 auto 12px;
}

.spinner-sm {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ========== MODAL ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.modal-overlay.visible {
  display: flex;
  opacity: 1;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.dark .modal { background: var(--color-surface-alt); border-color: var(--color-border); }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 1rem;
  transition: background 0.15s ease;
}

.modal-close:hover { background: var(--color-surface-alt); }

.modal-body { padding: 20px; }

/* ========== FORMS ========== */
.form-group { margin-bottom: 14px; flex: 1; }
.form-row { display: flex; gap: 12px; }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.85rem;
  transition: border-color 0.15s ease;
  box-sizing: border-box;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-actions { display: flex; gap: 10px; padding-top: 8px; }

.form-actions .btn-primary {
  flex: 1;
  padding: 10px 16px;
  font-size: 0.875rem;
}

/* ========== DETAILS MODAL ========== */
.detail-section { margin-bottom: 20px; }
.detail-section:last-child { margin-bottom: 0; }

.detail-heading {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 10px 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.detail-grid { display: flex; flex-direction: column; gap: 6px; }

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

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

.detail-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
}

.detail-value.mono {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .metrics { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 640px) {
  .info-grid { grid-template-columns: 1fr; }
  .card-actions { opacity: 1; }
}

@media (max-width: 480px) {
  .app { padding: 16px; }
  .header { padding: 12px 16px; margin: -16px -16px 16px -16px; }
  .header .title { font-size: 1rem; }

  .btn-primary.header-btn span { display: none; }
  .btn-primary.header-btn { width: 40px; height: 40px; padding: 0; justify-content: center; }

  .form-row { flex-direction: column; gap: 0; }
  .metric-card { padding: 12px; }
  .metric-value { font-size: 1.5rem; }
  .metric-icon-wrap { width: 32px; height: 32px; font-size: 0.8rem; }
  .filter-bar { padding: 12px; }
  .chip { padding: 5px 10px; font-size: 0.75rem; }
}

/* ========== UTILITY: HIDDEN ========== */
.hidden { display: none !important; }