/**
 * Sistema de Gestión de Casilleros - La Pereira
 * Archivo: public/css/style.css
 * Estilos principales y responsivos del sistema
 * Servicio de envíos desde USA hacia Cuba
 */

/* ============================================================
   VARIABLES CSS Y CONFIGURACIÓN GLOBAL
   ============================================================ */

:root {
    /* Colores Principales */
    --primary-color: #F6843E;
    --primary-light: #FF9A5C;
    --primary-dark: #E5732D;
    --primary-rgb: 246, 132, 62;
    
    --secondary-color: #253840;
    --secondary-light: #364A54;
    --secondary-dark: #1A282F;
    --secondary-rgb: 37, 56, 64;
    
    /* Colores de Estado */
    --success-color: #28a745;
    --success-light: #48b461;
    --success-dark: #1e7e34;
    
    --danger-color: #dc3545;
    --danger-light: #e25663;
    --danger-dark: #bd2130;
    
    --warning-color: #ffc107;
    --warning-light: #ffcd39;
    --warning-dark: #e0a800;
    
    --info-color: #17a2b8;
    --info-light: #3ab0c3;
    --info-dark: #117a8b;
    
    /* Colores Neutros */
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white: #ffffff;
    --black: #000000;
    
    /* Grises */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Texto */
    --text-color: #333333;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-light: #f8f9fa;
    --text-dark: #212529;
    
    /* Fondos */
    --bg-primary: #f5f6fa;
    --bg-secondary: #ffffff;
    --bg-dark: #253840;
    --bg-light: #f8f9fa;
    
    /* Bordes */
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    --border-dark: #ced4da;
    
    /* Dimensiones */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 70px;
    --footer-height: 60px;
    
    /* Sombras */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --shadow-xl: 0 1.5rem 4rem rgba(0, 0, 0, 0.2);
    
    /* Transiciones */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-pill: 50rem;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Fonts */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* ============================================================
   RESET Y BASE
   ============================================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   TIPOGRAFÍA
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

strong, b {
    font-weight: 600;
}

small {
    font-size: 0.875rem;
}

/* ============================================================
   COMPONENTES BASE
   ============================================================ */

/* Container */
.container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 576px) {
    .container { max-width: 540px; }
}

@media (min-width: 768px) {
    .container { max-width: 720px; }
}

@media (min-width: 992px) {
    .container { max-width: 960px; }
}

@media (min-width: 1200px) {
    .container { max-width: 1140px; }
}

@media (min-width: 1400px) {
    .container { max-width: 1320px; }
}

.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

.col {
    flex-basis: 0;
    flex-grow: 1;
    max-width: 100%;
    padding-right: 15px;
    padding-left: 15px;
}

/* Columnas responsivas */
@media (min-width: 576px) {
    .col-sm { flex: 1 0 0%; }
    .col-sm-auto { flex: 0 0 auto; width: auto; }
    .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
    .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 768px) {
    .col-md { flex: 1 0 0%; }
    .col-md-auto { flex: 0 0 auto; width: auto; }
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 992px) {
    .col-lg { flex: 1 0 0%; }
    .col-lg-auto { flex: 0 0 auto; width: auto; }
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 1200px) {
    .col-xl { flex: 1 0 0%; }
    .col-xl-auto { flex: 0 0 auto; width: auto; }
    .col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
    .col-xl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-xl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
}

/* ============================================================
   BOTONES
   ============================================================ */

.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1.25rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--radius);
    transition: var(--transition-base);
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Variantes de botones */
.btn-primary {
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
}

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

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

.btn-success {
    color: var(--white);
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-danger {
    color: var(--white);
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-warning {
    color: var(--dark-color);
    background-color: var(--warning-color);
    border-color: var(--warning-color);
}

.btn-info {
    color: var(--white);
    background-color: var(--info-color);
    border-color: var(--info-color);
}

.btn-light {
    color: var(--dark-color);
    background-color: var(--light-color);
    border-color: var(--light-color);
}

.btn-dark {
    color: var(--white);
    background-color: var(--dark-color);
    border-color: var(--dark-color);
}

/* Botones outline */
.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: transparent;
}

.btn-outline-primary:hover {
    color: var(--white);
    background-color: var(--primary-color);
}

/* Tamaños de botones */
.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Botón con icono */
.btn-icon {
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* ============================================================
   FORMULARIOS
   ============================================================ */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

.form-control:focus {
    color: var(--text-color);
    background-color: var(--white);
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.25);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--gray-200);
    opacity: 1;
}

/* Select */
.form-select {
    display: block;
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--white);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    appearance: none;
}

/* Textarea */
.form-control-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Checkbox y Radio */
.form-check {
    display: block;
    min-height: 1.5rem;
    padding-left: 1.75rem;
    margin-bottom: 0.5rem;
}

.form-check-input {
    width: 1.125rem;
    height: 1.125rem;
    margin-top: 0.1875rem;
    margin-left: -1.75rem;
    position: absolute;
}

.form-check-label {
    cursor: pointer;
}

/* Input Group */
.input-group {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    width: 100%;
}

.input-group-prepend,
.input-group-append {
    display: flex;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: 0.625rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-color);
    text-align: center;
    white-space: nowrap;
    background-color: var(--gray-200);
    border: 1px solid var(--border-color);
}

/* Validación */
.is-valid {
    border-color: var(--success-color);
}

.is-invalid {
    border-color: var(--danger-color);
}

.valid-feedback,
.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

.valid-feedback {
    color: var(--success-color);
}

.invalid-feedback {
    color: var(--danger-color);
}

.is-valid ~ .valid-feedback,
.is-invalid ~ .invalid-feedback {
    display: block;
}

/* ============================================================
   CARDS
   ============================================================ */

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--white);
    background-clip: border-box;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow);
}

.card-header {
    padding: 1.25rem;
    margin-bottom: 0;
    background-color: var(--gray-100);
    border-bottom: 1px solid var(--border-light);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-body {
    flex: 1 1 auto;
    padding: 1.25rem;
}

.card-footer {
    padding: 1.25rem;
    background-color: var(--gray-100);
    border-top: 1px solid var(--border-light);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.card-title {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-subtitle {
    margin-top: -0.375rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.card-text {
    margin-bottom: 1rem;
}

.card-img-top {
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ============================================================
   TABLAS
   ============================================================ */

.table {
    width: 100%;
    margin-bottom: 1rem;
    background-color: transparent;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--border-color);
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--border-color);
    background-color: var(--gray-100);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background-color: var(--gray-100);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.03);
}

.table-bordered {
    border: 1px solid var(--border-color);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--border-color);
}

.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ============================================================
   BADGES
   ============================================================ */

.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-pill);
}

.badge-primary {
    color: var(--white);
    background-color: var(--primary-color);
}

.badge-secondary {
    color: var(--white);
    background-color: var(--secondary-color);
}

.badge-success {
    color: var(--white);
    background-color: var(--success-color);
}

.badge-danger {
    color: var(--white);
    background-color: var(--danger-color);
}

.badge-warning {
    color: var(--dark-color);
    background-color: var(--warning-color);
}

.badge-info {
    color: var(--white);
    background-color: var(--info-color);
}

.badge-light {
    color: var(--dark-color);
    background-color: var(--light-color);
}

.badge-dark {
    color: var(--white);
    background-color: var(--dark-color);
}

/* ============================================================
   ALERTAS
   ============================================================ */

.alert {
    position: relative;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
}

.alert-primary {
    color: #8b4513;
    background-color: rgba(var(--primary-rgb), 0.1);
    border-color: rgba(var(--primary-rgb), 0.2);
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.alert-dismissible {
    padding-right: 3rem;
}

.alert-dismissible .close {
    position: absolute;
    top: 0;
    right: 0;
    padding: 1rem 1.25rem;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

/* ============================================================
   MODALES
   ============================================================ */

.modal {
    display: none;
    position: fixed;
    z-index: var(--z-modal);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal.show {
    display: block;
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: 1.75rem auto;
    max-width: 500px;
}

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

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

.modal-title {
    margin-bottom: 0;
    line-height: 1.5;
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: 1.25rem;
}

.modal-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    gap: 0.5rem;
}

/* ============================================================
   PAGINACIÓN
   ============================================================ */

.pagination {
    display: flex;
    padding-left: 0;
    list-style: none;
}

.page-link {
    position: relative;
    display: block;
    padding: 0.5rem 0.75rem;
    margin-left: -1px;
    line-height: 1.25;
    color: var(--primary-color);
    background-color: var(--white);
    border: 1px solid var(--border-color);
}

.page-item:first-child .page-link {
    border-top-left-radius: var(--radius);
    border-bottom-left-radius: var(--radius);
}

.page-item:last-child .page-link {
    border-top-right-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
}

.page-link:hover {
    z-index: 2;
    color: var(--primary-dark);
    background-color: var(--gray-200);
    border-color: var(--border-color);
}

.page-item.active .page-link {
    z-index: 3;
    color: var(--white);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.page-item.disabled .page-link {
    color: var(--gray-600);
    pointer-events: none;
    background-color: var(--white);
    border-color: var(--border-color);
}

/* ============================================================
   UTILIDADES
   ============================================================ */

/* Display */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-table { display: table !important; }
.d-table-row { display: table-row !important; }
.d-table-cell { display: table-cell !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flexbox */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-row-reverse { flex-direction: row-reverse !important; }
.flex-column-reverse { flex-direction: column-reverse !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.flex-wrap-reverse { flex-wrap: wrap-reverse !important; }
.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }
.justify-content-evenly { justify-content: space-evenly !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

/* Spacing */
.m-0 { margin: 0 !important; }
.m-1 { margin: 0.25rem !important; }
.m-2 { margin: 0.5rem !important; }
.m-3 { margin: 1rem !important; }
.m-4 { margin: 1.5rem !important; }
.m-5 { margin: 3rem !important; }
.m-auto { margin: auto !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

/* Text */
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.text-justify { text-align: justify !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-light { color: var(--light-color) !important; }
.text-dark { color: var(--dark-color) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-white { color: var(--white) !important; }

/* Background */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }
.bg-light { background-color: var(--light-color) !important; }
.bg-dark { background-color: var(--dark-color) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-transparent { background-color: transparent !important; }

/* Borders */
.border { border: 1px solid var(--border-color) !important; }
.border-0 { border: 0 !important; }
.border-top { border-top: 1px solid var(--border-color) !important; }
.border-right { border-right: 1px solid var(--border-color) !important; }
.border-bottom { border-bottom: 1px solid var(--border-color) !important; }
.border-left { border-left: 1px solid var(--border-color) !important; }

.border-primary { border-color: var(--primary-color) !important; }
.border-secondary { border-color: var(--secondary-color) !important; }
.border-success { border-color: var(--success-color) !important; }
.border-danger { border-color: var(--danger-color) !important; }
.border-warning { border-color: var(--warning-color) !important; }
.border-info { border-color: var(--info-color) !important; }
.border-light { border-color: var(--light-color) !important; }
.border-dark { border-color: var(--dark-color) !important; }
.border-white { border-color: var(--white) !important; }

/* Border radius */
.rounded-0 { border-radius: 0 !important; }
.rounded { border-radius: var(--radius) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-circle { border-radius: 50% !important; }
.rounded-pill { border-radius: var(--radius-pill) !important; }

/* Shadow */
.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

/* Width & Height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

/* ============================================================
   ANIMACIONES
   ============================================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fadeIn { animation: fadeIn 0.3s ease; }
.animate-fadeOut { animation: fadeOut 0.3s ease; }
.animate-slideInUp { animation: slideInUp 0.3s ease; }
.animate-slideInDown { animation: slideInDown 0.3s ease; }
.animate-slideInLeft { animation: slideInLeft 0.3s ease; }
.animate-slideInRight { animation: slideInRight 0.3s ease; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* ============================================================
   MEDIA QUERIES - RESPONSIVE
   ============================================================ */

/* Extra small devices (phones, less than 576px) */
@media (max-width: 575.98px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .container {
        padding-right: 10px;
        padding-left: 10px;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .d-xl-none { display: none !important; }
    .d-xl-block { display: block !important; }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* Print styles */
@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a,
    a:visited {
        text-decoration: underline;
    }
    
    thead {
        display: table-header-group;
    }
    
    tr,
    img {
        page-break-inside: avoid;
    }
    
    p,
    h2,
    h3 {
        orphans: 3;
        widows: 3;
    }
    
    h2,
    h3 {
        page-break-after: avoid;
    }
    
    .no-print {
        display: none !important;
    }
}

/* ============================================================
   CUSTOM SCROLLBAR
   ============================================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ============================================================
   LOADING SPINNER
   ============================================================ */

.spinner-border {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
}

/* ============================================================
   TOOLTIPS
   ============================================================ */

.tooltip {
    position: absolute;
    z-index: var(--z-tooltip);
    display: none;
    max-width: 200px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--white);
    background-color: var(--dark-color);
    border-radius: var(--radius);
    opacity: 0.9;
}

.tooltip.show {
    display: block;
}

/* ============================================================
   FIN DEL ARCHIVO
   ============================================================ */