/* Estilos modernos para ESP32 Cloud Gateway */

:root {
    --color-primario: #4f46e5;
    --color-primario-oscuro: #4338ca;
    --color-secundario: #10b981;
    --color-peligro: #ef4444;
    --color-advertencia: #f59e0b;
    --color-fondo: #f3f4f6;
    --color-fondo-card: #ffffff;
    --color-texto: #1f2937;
    --color-texto-secundario: #6b7280;
    --color-borde: #e5e7eb;
    --sombra: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --sombra-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-fondo);
    color: var(--color-texto);
    line-height: 1.6;
}

/* Layout General */
.contenedor {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.cabecera {
    background: linear-gradient(135deg, var(--color-primario) 0%, var(--color-primario-oscuro) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--sombra);
}

.cabecera .contenedor {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.navegacion {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.navegacion a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background 0.2s;
}

.navegacion a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.usuario-info {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

.btn-salir {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-salir:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Contenido Principal */
.contenido-principal {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Login */
.pagina-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primario) 0%, var(--color-primario-oscuro) 100%);
}

.contenedor-login {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.tarjeta-login {
    background: var(--color-fondo-card);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--sombra-hover);
}

.tarjeta-login h1 {
    text-align: center;
    color: var(--color-primario);
    margin-bottom: 0.5rem;
}

.subtitulo {
    text-align: center;
    color: var(--color-texto-secundario);
    margin-bottom: 2rem;
}

/* Formularios */
.formulario {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.grupo-formulario {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.grupo-formulario label {
    font-weight: 500;
    color: var(--color-texto);
}

.grupo-formulario input,
.grupo-formulario select {
    padding: 0.75rem;
    border: 1px solid var(--color-borde);
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.grupo-formulario input:focus,
.grupo-formulario select:focus {
    outline: none;
    border-color: var(--color-primario);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Botones */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primario:hover {
    background: var(--color-primario-oscuro);
    transform: translateY(-1px);
    box-shadow: var(--sombra-hover);
}

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

.btn-secundario:hover {
    background: #059669;
}

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

.btn-peligro:hover {
    background: #dc2626;
}

/* Mensajes */
.mensaje-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 0.75rem;
    border-radius: 0.375rem;
    border: 1px solid #fecaca;
}

.mensaje-exito {
    background: #d1fae5;
    color: #065f46;
    padding: 0.75rem;
    border-radius: 0.375rem;
    border: 1px solid #a7f3d0;
}

/* Cards */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: var(--color-fondo-card);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--sombra);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

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

.card-titulo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-texto);
}

.card-estado {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.estado-activo {
    background: #d1fae5;
    color: #065f46;
}

.estado-inactivo {
    background: #fee2e2;
    color: #991b1b;
}

.card-datos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.dato-item {
    display: flex;
    flex-direction: column;
}

.dato-label {
    font-size: 0.875rem;
    color: var(--color-texto-secundario);
    margin-bottom: 0.25rem;
}

.dato-valor {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-texto);
}

/* Gráficas */
.contenedor-graficas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.grafica-card {
    background: var(--color-fondo-card);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--sombra);
    cursor: pointer;
    transition: transform 0.2s;
}

.grafica-card:hover {
    transform: scale(1.02);
}

.grafica-titulo {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-texto);
}

.grafica-container {
    position: relative;
    height: 250px;
}

/* Modal Pantalla Completa */
.modal-fullscreen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    padding: 2rem;
    overflow: auto;
}

.modal-fullscreen.activo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.modal-contenido {
    background: var(--color-fondo-card);
    border-radius: 0.5rem;
    padding: 2rem;
    max-width: 90%;
    width: 100%;
    max-height: 90vh;
    position: relative;
}

.modal-cerrar {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-peligro);
    color: white;
    border: none;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-cerrar:hover {
    background: #dc2626;
}

.modal-grafica {
    height: 70vh;
    min-height: 500px;
}

/* Panel de Control */
.panel-control {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.control-card {
    background: var(--color-fondo-card);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--sombra);
}

.control-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-borde);
}

.control-item:last-child {
    border-bottom: none;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 26px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--color-primario);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Footer */
.pie-pagina {
    background: var(--color-texto);
    color: white;
    padding: 1.5rem 0;
    margin-top: 3rem;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .navegacion {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        margin-top: 1rem;
    }
    
    .grid-cards,
    .contenedor-graficas,
    .panel-control {
        grid-template-columns: 1fr;
    }
    
    .modal-contenido {
        padding: 1rem;
    }
    
    .modal-grafica {
        height: 60vh;
        min-height: 400px;
    }
}

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

.card,
.grafica-card {
    animation: fadeIn 0.3s ease-out;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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