/**
 * Estilos Principal - Aplicación de Marcadores
 * Creado: 2023-11-20
 * Autor: Sistema Marcadores
 */

:root {
    /* Colores principales */
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
    
    /* Colores de importancia */
    --importancia-critico: #e74c3c;
    --importancia-alto: #f39c12;
    --importancia-medio: #3498db;
    --importancia-bajo: #27ae60;
    
    /* Colores de fondo */
    --bg-primary: #ecf0f1;
    --bg-secondary: #ffffff;
    --bg-dark: #2c3e50;
    
    /* Texto */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #ffffff;
    
    /* Bordes y sombras */
    --border-color: #bdc3c7;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Pantallas */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Login Screen */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
}

.login-header {
    margin-bottom: var(--spacing-lg);
}

.login-header i {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.login-header h1 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--text-secondary);
}

.login-form {
    text-align: left;
}

.input-group {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-light);
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-color);
    color: var(--text-light);
}

.btn-success:hover {
    background: #219a52;
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--text-light);
}

.btn-secondary:hover {
    background: #1a252f;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
}

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

/* App Header */
.app-header {
    background: var(--bg-secondary);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left h1 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.header-left h1 i {
    color: var(--primary-color);
}

.stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 14px;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    gap: var(--spacing-sm);
}

/* Filtros */
.filters-bar {
    background: var(--bg-secondary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-box input {
    width: 100%;
    padding: 10px 15px 10px 45px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.filter-select {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    min-width: 150px;
}

/* Grid de Marcadores */
.main-content {
    padding: var(--spacing-lg);
}

.marcadores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.marcador-card {
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border-left: 4px solid var(--importancia-medio);
}

.marcador-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.marcador-card.critico {
    border-left-color: var(--importancia-critico);
}

.marcador-card.alto {
    border-left-color: var(--importancia-alto);
}

.marcador-card.medio {
    border-left-color: var(--importancia-medio);
}

.marcador-card.bajo {
    border-left-color: var(--importancia-bajo);
}

.marcador-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.marcador-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
    word-break: break-word;
}

.marcador-url {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    word-break: break-all;
}

.marcador-url:hover {
    text-decoration: underline;
}

.marcador-actions {
    display: flex;
    gap: 5px;
}

.btn-icon {
    background: none;
    border: none;
    padding: 5px;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 4px;
    transition: all 0.3s;
}

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

.marcador-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.marcador-categoria {
    background: var(--bg-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.marcador-favorito {
    color: var(--warning-color);
}

.marcador-observaciones {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.btn-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-form {
    padding: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group label i {
    margin-right: 5px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

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

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

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

/* Estados */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.loading i {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state i {
    margin-bottom: var(--spacing-md);
    color: var(--border-color);
}

.error-message {
    background: #fee;
    color: var(--danger-color);
    padding: 10px 15px;
    border-radius: 8px;
    border-left: 4px solid var(--danger-color);
    margin-top: var(--spacing-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
    
    .header-left,
    .header-right {
        text-align: center;
    }
    
    .stats {
        justify-content: center;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        min-width: auto;
    }
    
    .marcadores-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
}

/* Fallbacks para navegadores antiguos */
@supports not (display: grid) {
    .marcadores-grid {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .form-row {
        display: block;
    }
    
    .form-row .form-group {
        margin-bottom: var(--spacing-sm);
    }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .marcador-card:hover {
        transform: none;
    }
    
    .btn-primary:hover {
        transform: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow: 0 2px 10px rgba(0,0,0,0.3);
        --shadow-hover: 0 4px 20px rgba(0,0,0,0.4);
    }
    
    .marcador-card {
        border: 2px solid var(--border-color);
    }
}

/* Estilos para gestión de usuarios */
.user-info {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
}

.info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item label {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-item span {
    color: var(--text-primary);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-secondary);
    font-size: 12px;
}

/* Mejoras para los botones del header */
.header-right {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Responsive para botones de usuario */
@media (max-width: 768px) {
    .header-right {
        gap: 5px;
    }
    
    .header-right .btn {
        padding: 8px 12px;
    }
    
    .header-right .btn span {
        display: none;
    }
    
    .header-right .btn i {
        margin-right: 0;
    }
}