/* Variables globales */
:root {
    --primary-color: #ffa500;
    --primary-hover: #e69500;
    --text-color: #333;
    --text-light: #666;
    --background-color: #f5f5f5;
    --card-bg: #ffffff;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --border-color: #ddd;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 15px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.08);
    --transition-speed: 0.3s;
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 600;
    --input-height: 40px;
    --btn-height: 40px;
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Estructura principal */
.dashboard {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.main-content {
    flex: 1;
    padding: var(--spacing-md);
    transition: margin-left var(--transition-speed) ease-in-out;
    width: 100%;
}

/* Barra superior */
.top-bar {
    background-color: var(--card-bg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.top-bar h1 {
    font-size: var(--font-size-lg);
    color: var(--text-color);
    margin: 0;
    flex: 1;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background-color var(--transition-speed);
}

.sidebar-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* Tarjetas */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: fadeIn 0.5s ease-out;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.card-header h2 {
    font-size: var(--font-size-lg);
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.card-header h2 i {
    color: var(--primary-color);
}

.card-body {
    padding: var(--spacing-lg);
}

/* Formulario de nuevo contacto */
.new-contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 250px;
}

.form-group.full-width {
    flex: 0 0 100%;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-speed) ease;
    height: var(--input-height);
    background-color: var(--card-bg);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    height: auto;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 165, 0, 0.1);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Botones */
.btn {
    height: var(--btn-height);
    padding: 0 var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-speed) ease;
    border: none;
    min-width: 120px;
}

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

.btn-save:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-cancel {
    background-color: #f8f9fa;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-cancel:hover {
    background-color: #e9ecef;
}

.btn-add {
    background-color: var(--primary-color);
    color: white;
    height: var(--btn-height);
    padding: 0 var(--spacing-lg);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
}

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

.btn-action {
    padding: 6px 12px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    font-size: var(--font-size-xs);
    height: 32px;
    min-width: auto;
}

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

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

/* Filtros y acciones de tabla */
.filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
}

.filter-select,
.filter-input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    min-width: 150px;
    height: var(--input-height);
    background-color: var(--card-bg);
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.table-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* Tabla de contactos */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -20px;
    padding: 0 20px;
}

.contacts-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-lg);
    min-width: 800px;
}

.contacts-table th,
.contacts-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
}

.contacts-table th {
    background-color: #f8f9fa;
    font-weight: var(--font-weight-bold);
    color: var(--text-light);
    position: sticky;
    top: 0;
    z-index: 10;
}

.contacts-table tbody tr {
    transition: background-color var(--transition-speed);
}

.contacts-table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Indicadores de estado */
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-active {
    background-color: var(--success-color);
}

.status-in-process {
    background-color: var(--warning-color);
}

.status-canceled {
    background-color: var(--danger-color);
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal-content {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease-out;
}

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

.modal-header h2 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-speed);
}

.modal-close:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* Fila de nuevo contacto en tabla */
.new-contact-row {
    background-color: #fff9e6;
}

.new-contact-row input,
.new-contact-row select,
.new-contact-row textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
}

.new-contact-row textarea {
    resize: vertical;
}

.new-contact-row .btn-save {
    background-color: var(--success-color);
    color: white;
}

.new-contact-row .btn-cancel {
    background-color: var(--danger-color);
    color: white;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sidebar responsive */
.sidebar {
    transition: transform var(--transition-speed) ease-in-out;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.main-content.expanded {
    margin-left: 0;
}

/* Responsive Breakpoints */
/* Mobile First Approach */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .main-content {
        padding: var(--spacing-lg);
    }

    .top-bar {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .card-header,
    .card-body {
        padding: var(--spacing-lg);
    }

    .btn-action {
        padding: 6px 12px;
        font-size: var(--font-size-sm);
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .top-bar h1 {
        font-size: var(--font-size-xl);
    }

    .form-group {
        min-width: 200px;
    }

    .filters {
        flex-direction: row;
        width: auto;
    }

    .filter-select,
    .filter-input {
        width: auto;
    }

    .table-actions {
        flex-direction: row;
    }

    .modal-content {
        padding: var(--spacing-xl);
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .main-content {
        padding: var(--spacing-xl);
    }

    .card-header,
    .card-body {
        padding: var(--spacing-xl);
    }

    .form-row {
        flex-wrap: nowrap;
    }

    .table-container {
        margin: 0;
        padding: 0;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .card-header {
        flex-direction: row;
    }

    .contacts-table th,
    .contacts-table td {
        padding: 16px;
    }
}

/* Mobile Specific Styles (for screens smaller than 576px) */
@media (max-width: 575.98px) {
    :root {
        --spacing-lg: 15px;
        --spacing-xl: 20px;
    }

    html {
        font-size: 14px;
    }

    .main-content {
        padding: var(--spacing-sm);
    }

    .top-bar {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .top-bar h1 {
        font-size: var(--font-size-md);
        text-align: center;
        width: 100%;
        order: 2;
        margin-top: var(--spacing-xs);
    }

    .sidebar-toggle {
        order: 1;
        margin-right: auto;
    }

    .card {
        border-radius: var(--border-radius-md);
        margin-bottom: var(--spacing-lg);
    }

    .card-header {
        padding: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .form-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .form-group {
        min-width: 100%;
    }

    .form-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .filters {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
    }

    .filter-select,
    .filter-input {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }

    .table-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .contacts-table {
        font-size: var(--font-size-xs);
        min-width: 650px;
    }

    .contacts-table th,
    .contacts-table td {
        padding: 8px 6px;
    }

    .btn-action {
        padding: 4px 8px;
        font-size: 11px;
        height: 28px;
    }

    .modal-content {
        width: 95%;
        padding: var(--spacing-md);
    }

    .modal-header h2 {
        font-size: var(--font-size-md);
    }

    /* Optimización para tablas en móviles */
    .table-container {
        margin: 0 -15px;
        padding: 0 15px;
    }

    .table-container:before {
        content: "← Desliza para ver más →";
        display: block;
        text-align: center;
        font-size: var(--font-size-xs);
        color: var(--text-light);
        margin-bottom: var(--spacing-xs);
    }
}

/* Mejoras táctiles para dispositivos móviles */
@media (hover: none) and (pointer: coarse) {

    .btn,
    .filter-select,
    .filter-input,
    .form-group input,
    .form-group select,
    .form-group textarea,
    .modal-close {
        min-height: 44px;
        /* Altura mínima para elementos táctiles */
    }

    .btn-action {
        min-height: 36px;
        min-width: 36px;
    }

    /* Aumentar el espacio entre filas de tabla para facilitar el toque */
    .contacts-table td,
    .contacts-table th {
        padding-top: 12px;
        padding-bottom: 12px;
    }

    /* Mejorar la experiencia de desplazamiento en tablas */
    .table-container {
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }
}

/* Mejoras para dispositivos de alta densidad de píxeles */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
    .card {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    }

    .top-bar {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    }
}

/* Soporte para modo oscuro */
@media (prefers-color-scheme: dark) {
    :root {
        --card-bg: #ffffff;
        --background-color: #f5f5f5;
        --text-color: #333;
        --text-light: #666;
        --border-color: #ddd;
    }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}

/* Estilos para orientación landscape en móviles */
@media (max-height: 500px) and (orientation: landscape) {
    .card {
        margin-bottom: var(--spacing-md);
    }

    .card-header {
        padding: var(--spacing-sm);
    }

    .card-body {
        padding: var(--spacing-sm);
    }

    .form-row {
        gap: var(--spacing-sm);
    }

    .modal-content {
        max-height: 85vh;
    }
}

/* Estilos para pantallas muy pequeñas */
@media (max-width: 320px) {
    html {
        font-size: 13px;
    }

    .top-bar h1 {
        font-size: 1rem;
    }

    .card-header h2 {
        font-size: 1rem;
    }

    .form-group label {
        font-size: 0.8rem;
    }

    .btn {
        padding: 0 var(--spacing-md);
        font-size: 0.8rem;
    }
}

/* Estilos para pantallas muy grandes */
@media (min-width: 1400px) {
    .main-content {
        max-width: 1400px;
        margin: 0 auto;
    }

    html {
        font-size: 18px;
    }
}

/* Mejoras para la visualización de tablas en dispositivos móviles */
@media (max-width: 767.98px) {

    /* Opción alternativa: Transformar tabla en tarjetas para móviles */
    .card-view-enabled .contacts-table {
        min-width: unset;
    }

    .card-view-enabled .contacts-table thead {
        display: none;
    }

    .card-view-enabled .contacts-table tbody tr {
        display: block;
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-md);
        padding: var(--spacing-sm);
        position: relative;
    }

    .card-view-enabled .contacts-table tbody td {
        display: flex;
        padding: 8px 0;
        border-bottom: 1px solid #f0f0f0;
    }

    .card-view-enabled .contacts-table tbody td:last-child {
        border-bottom: none;
    }

    .card-view-enabled .contacts-table tbody td:before {
        content: attr(data-label);
        font-weight: var(--font-weight-bold);
        width: 40%;
        margin-right: var(--spacing-sm);
    }

    .card-view-enabled .contacts-table tbody td:last-child {
        text-align: right;
        justify-content: flex-end;
    }

    /* Botón para alternar entre vista de tabla y tarjetas */
    .table-view-toggle {
        display: inline-flex;
        align-items: center;
        gap: var(--spacing-xs);
        background: none;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-md);
        padding: 8px 12px;
        font-size: var(--font-size-sm);
        color: var(--text-light);
        cursor: pointer;
        margin-bottom: var(--spacing-sm);
    }

    .table-view-toggle i {
        font-size: 1rem;
    }
}

/* Ocultar el botón de alternar vista en pantallas grandes */
@media (min-width: 768px) {
    .table-view-toggle {
        display: none;
    }
}

/* Mejoras para iOS */
@supports (-webkit-touch-callout: none) {

    /* Corregir problemas con 100vh en iOS */
    .dashboard {
        min-height: -webkit-fill-available;
    }

    /* Evitar zoom no deseado en inputs */
    input,
    select,
    textarea {
        font-size: 16px;
    }

    /* Mejorar el desplazamiento */
    .table-container {
        -webkit-overflow-scrolling: touch;
    }
}