/**
 * Sistema de Diseño Unificado - IESTP Tsamajain
 * Layout y estructura (header, footer, nav, containers)
 */

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
  background-color: var(--primary) !important;
  border-bottom: var(--border-width) solid var(--primary-dark);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-3) 0;
  transition: all var(--transition-base);
}

.navbar-brand {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  color: var(--text-white) !important;
  transition: transform var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.navbar-brand:hover {
  transform: scale(1.05);
  color: var(--text-white) !important;
}

.navbar-brand img {
  transition: transform var(--transition-base);
  height: 40px;
}

.navbar-brand:hover img {
  transform: rotate(5deg) scale(1.1);
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-2) var(--spacing-2) !important;
  border-radius: var(--border-radius-md);
  margin: 0 var(--spacing-1);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.navbar-nav .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--text-white) !important;
  transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--text-white) !important;
}

.navbar-nav .nav-link i {
  transition: transform var(--transition-base);
  font-size: var(--font-size-lg);
}

.navbar-nav .nav-link:hover i {
  transform: scale(1.15);
}

.navbar-toggler {
  border: var(--border-width) solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-2);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Dropdowns en navbar */
.navbar-nav .dropdown-menu {
  margin-top: var(--spacing-2);
  border: var(--border-width) solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.navbar-nav .dropdown-item {
  padding: var(--spacing-2) var(--spacing-4);
}

.navbar-nav .dropdown-item i {
  width: 20px;
  text-align: center;
}

/* ============================================
   PAGE HEADER
   ============================================ */

.page-header {
  background-color: var(--primary);
  color: var(--text-white);
  padding: var(--spacing-8) 0;
  margin-bottom: var(--spacing-8);
  box-shadow: var(--shadow-md);
}

.page-header h1 {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-4xl);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.page-header .lead {
  color: rgba(255, 255, 255, 0.9);
  margin-top: var(--spacing-2);
  font-size: var(--font-size-lg);
}

.page-header .breadcrumb {
  background: transparent;
  margin: var(--spacing-4) 0 0 0;
  padding: 0;
}

.page-header .breadcrumb-item a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-header .breadcrumb-item a:hover {
  color: var(--text-white);
}

.page-header .breadcrumb-item.active {
  color: var(--text-white);
}

/* ============================================
   PAGE TITLE HEADER (Estructura unificada)
   ============================================ */

.page-title-header {
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-4);
  border-bottom: var(--border-width) solid var(--border-color);
}

.page-title-header .page-title-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.page-title-header .page-title-wrapper-with-actions {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.page-title-header .page-title-content {
  flex: 1;
  min-width: 250px;
}

.page-title-header .page-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin: 0 0 var(--spacing-2) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  line-height: 1.2;
}

.page-title-header .page-title i {
  font-size: var(--font-size-2xl);
  color: var(--primary);
  flex-shrink: 0;
}

.page-title-header .page-description {
  font-size: var(--font-size-base);
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.page-title-header .page-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

@media (max-width: 767.98px) {
  .page-title-header .page-title-wrapper-with-actions {
    flex-direction: column;
  }
  
  .page-title-header .page-actions {
    width: 100%;
  }
  
  .page-title-header .page-actions .btn {
    flex: 1;
    min-width: 0;
  }
  
  .page-title-header .page-title {
    font-size: var(--font-size-2xl);
  }
}

/* ============================================
   CONTAINERS
   ============================================ */

.container-main {
  min-height: calc(100vh - 200px);
  padding: var(--spacing-6) var(--spacing-4);
}

@media (min-width: 768px) {
  .container-main {
    padding: var(--spacing-8) var(--spacing-6);
  }
}

@media (min-width: 992px) {
  .container-main {
    padding: var(--spacing-10) var(--spacing-8);
  }
}

/* Container para admin */
.admin-container {
  min-height: calc(100vh - 200px);
  padding: var(--spacing-6) var(--spacing-4);
}

.admin-container.container-fluid {
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

@media (min-width: 992px) {
  .admin-container {
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

/* Container más ancho para mejor visibilidad - Mayor especificidad */
body .container.container-wide,
.flex-grow-1.container.container-wide {
  width: 100% !important;
  padding-right: var(--spacing-4) !important;
  padding-left: var(--spacing-4) !important;
  margin-right: auto !important;
  margin-left: auto !important;
}

@media (min-width: 576px) {
  body .container.container-wide,
  .flex-grow-1.container.container-wide {
    max-width: 100% !important;
  }
}

@media (min-width: 768px) {
  body .container.container-wide,
  .flex-grow-1.container.container-wide {
    max-width: 100% !important;
  }
}

@media (min-width: 992px) {
  body .container.container-wide,
  .flex-grow-1.container.container-wide {
    max-width: 1400px !important;
  }
}

@media (min-width: 1200px) {
  body .container.container-wide,
  .flex-grow-1.container.container-wide {
    max-width: 1600px !important;
  }
}

@media (min-width: 1400px) {
  body .container.container-wide,
  .flex-grow-1.container.container-wide {
    max-width: 1800px !important;
  }
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: var(--bg-darker);
  color: var(--text-white);
  margin-top: auto;
  padding: var(--spacing-10) 0 var(--spacing-6);
  width: 100%;
  max-width: 100%;
  position: relative;
  left: 0;
  right: 0;
  margin-left: 0;
  margin-right: 0;
  box-sizing: border-box;
}

footer h5,
footer h6 {
  color: var(--text-white);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
}

footer h6 {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

footer a:hover {
  color: var(--text-white);
}

footer .text-light-emphasis {
  color: rgba(255, 255, 255, 0.7) !important;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

footer ul li {
  margin-bottom: var(--spacing-2);
}

footer .bi {
  color: var(--primary-light);
}

footer hr {
  border-color: rgba(255, 255, 255, 0.1);
  margin: var(--spacing-6) 0;
}

/* ============================================
   SECTIONS Y SPACING
   ============================================ */

.section {
  margin-bottom: var(--spacing-8);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-6);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-4);
}

/* ============================================
   UTILITIES DE LAYOUT
   ============================================ */

.flex-grow-1 {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.min-vh-100 {
  min-height: 100vh;
}

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

@media (max-width: 767.98px) {
  .page-header {
    padding: var(--spacing-6) 0;
  }
  
  .page-header h1 {
    font-size: var(--font-size-3xl);
  }
  
  .container-main,
  .admin-container {
    padding: var(--spacing-4) var(--spacing-3);
  }
  
  footer {
    padding: var(--spacing-8) 0 var(--spacing-4);
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
}

/* ============================================
   GRADIENT BACKGROUNDS (para headers especiales)
   ============================================ */

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
}

.bg-gradient-success {
  background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
  color: var(--text-white);
}

.bg-gradient-info {
  background: linear-gradient(135deg, var(--info) 0%, var(--info-dark) 100%);
  color: var(--text-white);
}