/* ============================================== */
/* VARIABLES DE COLOR */
/* ============================================== */
:root {
  --primary-dark: #2c3e50;
  --primary-medium: #34495e;
  --primary-light: #4a6278;
  --accent: #3498db;
  --text-light: #ecf0f1;
  --text-dark: #2c3e50;
  --bg-light: #f8f9fa;
  --border-color: #e0e0e0;
  --shadow: rgba(0, 0, 0, 0.1);
  --header-height: 65px;
  --sidebar-width: 260px;
}

/* ============================================== */
/* RESET Y ESTILOS GLOBALES */
/* ============================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  overflow-x: hidden;
}

/* ============================================== */
/* HEADER - MOBILE FIRST */
/* ============================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--primary-dark);
  color: var(--text-light);
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 1rem;
  box-shadow: 0 2px 8px var(--shadow);
  z-index: 1000;
}

/* Botón menú */
.btn-menu {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s;
}

.btn-menu:hover {
  color: var(--accent);
}

/* ============================================== */
/* BUSCADOR SIMPLE Y PROFESIONAL */
/* ============================================== */
.header-search {
  flex: 1;
  max-width: 600px;
  margin: 0 1rem;
}

.header-search .input-group {
  width: 100%;
  height: 55px;
}

.search-category {
  background-color: var(--primary-medium);
  color: var(--text-light);
  border: 1px solid var(--primary-light);
  border-right: 0;
  font-size: 0.9rem;
  height: 100%;
}

.search-category:focus {
  background-color: var(--primary-medium);
  color: var(--text-light);
  border-color: var(--accent);
  box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

.search-input {
  background-color: white;
  border: 1px solid var(--border-color);
  border-left: 0;
  border-right: 0;
  color: var(--text-dark);
  font-size: 0.95rem;
  height: 100%;
  min-width: 200px; /* ← AGREGAR ESTA LÍNEA */
  /*flex: 1;*/
}

.search-input:focus {
  background-color: white;
  border-color: var(--accent);
  box-shadow: none;
  color: var(--text-dark);
}

.search-input::placeholder {
  color: #6c757d;
}

.btn-search-action {
  background-color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 0 6px 6px 0 !important;
  color: white;
  font-weight: 500;
  height: 100%;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.btn-search-action:hover {
  background-color: #2980b9;
  border-color: #2980b9;
  transform: translateY(-1px);
}

.btn-search-action:active {
  transform: translateY(0);
}

/* ============================================== */
/* Acciones del header */
/* ============================================== */

.form-select {
  color: white;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.header-link {
  color: var(--text-light);
  text-decoration: none;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 6px;
  transition: background-color 0.3s;
  font-size: 0.9rem;
}

.header-link:hover {
  background-color: var(--primary-medium);
  color: var(--text-light);
}

.header-user {
  border-left: 1px solid var(--primary-light);
  padding-left: 0.75rem;
  margin-left: 0.25rem;
}

/* ============================================== */
/* SIDEBAR */
/* ============================================== */
.sidebar {
  position: fixed;
  top: 0;
  left: -100%;
  width: 280px;
  height: 100vh;
  background-color: var(--primary-dark);
  color: var(--text-light);
  transition: left 0.3s ease-in-out;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  box-shadow: 2px 0 10px var(--shadow);
}

.sidebar.show {
  left: 0;
}

.offcanvas-backdrop {
  background-color: rgba(0, 0, 0, 0.5);
}

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

.sidebar-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-light);
}

.btn-close-custom {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  transition: color 0.3s;
}

.btn-close-custom:hover {
  color: var(--accent);
}

.sidebar-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
}

.sidebar .nav-link {
  color: var(--text-light);
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
  transition: all 0.3s;
  border-left: 3px solid transparent;
  font-size: 0.95rem;
}

.sidebar .nav-link i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.sidebar .nav-link:hover {
  background-color: var(--primary-medium);
  border-left-color: var(--accent);
}

.sidebar .nav-link.active {
  background-color: var(--primary-medium);
  border-left-color: var(--accent);
  color: var(--accent);
}

.sidebar-footer {
  margin-top: auto;
  padding: 1.25rem;
  border-top: 1px solid var(--primary-light);
}

.btn-logout {
  width: 100%;
  background-color: transparent;
  border: 1px solid var(--primary-light);
  color: var(--text-light);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.3s;
  font-size: 0.95rem;
}

.btn-logout:hover {
  background-color: #e74c3c;
  border-color: #e74c3c;
  color: white;
}

/* ============================================== */
/* MAIN CONTENT */
/* ============================================== */
.main-content {
  margin-top: var(--header-height);
  padding: 1rem;
  min-height: calc(100vh - var(--header-height));
}

.workspace {
  background-color: white;
  border-radius: 8px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px var(--shadow);
  min-height: calc(100vh - var(--header-height) - 2rem);
}

.workspace-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border-color);
}

/* ============================================== */
/* RESPONSIVE */
/* ============================================== */

/* SM (≥576px) */
@media (min-width: 576px) {
  .main-content {
    padding: 1.5rem;
  }
  .workspace {
    padding: 1.5rem;
    min-height: calc(100vh - var(--header-height) - 3rem);
  }
  .workspace-title {
    font-size: 1.75rem;
  }
}

/* MD (≥768px) */
@media (min-width: 768px) {
  .header-search {
    max-width: 700px;
  }
  .main-content {
    padding: 2rem;
  }
  .workspace {
    padding: 2rem;
    min-height: calc(100vh - var(--header-height) - 4rem);
  }
}

/* Responsive para móvil */
@media (max-width: 576px) {
  .header {
    padding: 0 0.5rem;
    gap: 0.5rem;
  }
  
  .header-search {
    margin: 0 0.5rem;
  }
  
  .btn-search-action span {
    display: none;
  }
  
  .btn-search-action {
    padding: 0 0.75rem;
  }
  
  .search-category {
    max-width: 120px;
    font-size: 0.85rem;
  }
}

/* LG (≥992px) - Desktop */
@media (min-width: 992px) {
  .sidebar {
    left: 0;
    position: fixed;
    width: var(--sidebar-width);
    box-shadow: none;
    border-right: 1px solid var(--primary-light);
  }
  .btn-close-custom {
    display: none;
  }
  .header {
    left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
  }
  .btn-menu {
    display: none;
  }
  .main-content {
    margin-left: var(--sidebar-width);
    padding: 2rem 2.5rem;
  }
  .workspace {
    padding: 2.5rem;
    min-height: calc(100vh - var(--header-height) - 4rem);
  }
  .workspace-title {
    font-size: 2rem;
  }
}

/* XL (≥1200px) */
@media (min-width: 1200px) {
  .main-content {
    padding: 2.5rem 3rem;
  }
  .workspace {
    padding: 3rem;
  }
}

/* XXL (≥1400px) */
@media (min-width: 1400px) {
  .main-content {
    padding: 3rem;
  }
}

/* ============================================== */
/* UTILIDADES */
/* ============================================== */
html {
  scroll-behavior: smooth;
}

.sidebar-body::-webkit-scrollbar {
  width: 6px;
}

.sidebar-body::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

.sidebar-body::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 3px;
}

.sidebar-body::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.workspace {
  animation: fadeIn 0.3s ease-in-out;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.header-link.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  text-decoration: none;
  color: #6c757d !important;
}

.header-link.disabled:hover {
  background-color: transparent !important;
  color: #6c757d !important;
}

.header-link.disabled i {
  color: #adb5bd !important;
}

/* Estados deshabilitados para el buscador */
.search-input:disabled,
.search-category:disabled,
.btn-search-action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background-color: #e9ecef !important;
  border-color: #dee2e6 !important;
  color: #adb5bd !important;
}

.search-input:disabled::placeholder {
  color: #adb5bd !important;
}