/* Estilos para melhorar a responsividade e experiência do usuário */

/* Variáveis para breakpoints */
:root {
    --breakpoint-xs: 576px;
    --breakpoint-sm: 768px;
    --breakpoint-md: 992px;
    --breakpoint-lg: 1200px;
}

/* Melhorias gerais de acessibilidade */
:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Melhorias no menu mobile */
.menu-toggle {
    position: relative;
    z-index: 1001;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-list.active {
    transform: translateX(0);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Melhorias na navegação por toque */
@media (hover: none) {
    .nav-list a {
        padding: 15px 10px;
    }
    
    .btn, .btn-enhanced {
        padding: 15px 25px;
    }
    
    .feature-item, .value-item, .testimonial-card {
        transform: none !important;
    }
}

/* Melhorias na responsividade de imagens */
img {
    max-width: 100%;
    height: auto;
}

.responsive-container {
    position: relative;
    overflow: hidden;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.responsive-container iframe,
.responsive-container object,
.responsive-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Grid responsivo aprimorado */
.flex-grid {
    display: flex;
    flex-wrap: wrap;
    margin: -15px;
}

.flex-grid-item {
    padding: 15px;
    flex-grow: 1;
}

.flex-grid-item.col-1 { flex-basis: 8.333%; }
.flex-grid-item.col-2 { flex-basis: 16.667%; }
.flex-grid-item.col-3 { flex-basis: 25%; }
.flex-grid-item.col-4 { flex-basis: 33.333%; }
.flex-grid-item.col-5 { flex-basis: 41.667%; }
.flex-grid-item.col-6 { flex-basis: 50%; }
.flex-grid-item.col-7 { flex-basis: 58.333%; }
.flex-grid-item.col-8 { flex-basis: 66.667%; }
.flex-grid-item.col-9 { flex-basis: 75%; }
.flex-grid-item.col-10 { flex-basis: 83.333%; }
.flex-grid-item.col-11 { flex-basis: 91.667%; }
.flex-grid-item.col-12 { flex-basis: 100%; }

/* Ajustes responsivos para o grid */
@media (max-width: 992px) {
    .flex-grid-item.col-md-6 { flex-basis: 50%; }
    .flex-grid-item.col-md-12 { flex-basis: 100%; }
}

@media (max-width: 768px) {
    .flex-grid-item.col-sm-6 { flex-basis: 50%; }
    .flex-grid-item.col-sm-12 { flex-basis: 100%; }
}

@media (max-width: 576px) {
    .flex-grid-item.col-xs-12 { flex-basis: 100%; }
}

/* Melhorias no carregamento de imagens */
.lazy-load {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* Melhorias na tipografia responsiva */
html {
    font-size: 16px;
}

@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
}

/* Espaçamento responsivo */
.section-padding {
    padding: 80px 0;
}

@media (max-width: 992px) {
    .section-padding {
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 50px 0;
    }
}

@media (max-width: 576px) {
    .section-padding {
        padding: 40px 0;
    }
}

/* Melhorias na navegação por teclado */
.keyboard-nav-indicator {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.keyboard-nav-indicator.visible {
    opacity: 1;
}

/* Melhorias no contraste e legibilidade */
.high-contrast {
    --primary-color: #C10025;
    --accent-color: #B87000;
    --text-color: #222222;
    --light-text: #FFFFFF;
    --background-light: #F5F5F5;
    --background-dark: #3A1A10;
}

/* Botão de volta ao topo */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--accent-color);
}

/* Melhorias no carregamento da página */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--secondary-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Melhorias em formulários */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(217, 147, 61, 0.2);
    outline: none;
}

.form-control.error {
    border-color: var(--primary-color);
}

.form-error-message {
    color: var(--primary-color);
    font-size: 0.875rem;
    margin-top: 5px;
}

/* Melhorias em botões */
.btn-group {
    display: flex;
    gap: 10px;
}

@media (max-width: 576px) {
    .btn-group {
        flex-direction: column;
    }
}

/* Melhorias em tabelas responsivas */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    background-color: var(--secondary-color);
    color: var(--dark-brown);
    font-weight: 600;
}

.table tr:hover {
    background-color: rgba(242, 227, 213, 0.3);
}

@media (max-width: 768px) {
    .table-responsive-stack th,
    .table-responsive-stack td {
        display: block;
        width: 100%;
    }
    
    .table-responsive-stack th {
        text-align: center;
    }
    
    .table-responsive-stack td {
        text-align: center;
        border-bottom: none;
        padding: 8px 15px;
    }
    
    .table-responsive-stack tr {
        border-bottom: 2px solid #ddd;
        margin-bottom: 15px;
        display: block;
    }
    
    .table-responsive-stack td:before {
        content: attr(data-label);
        font-weight: 600;
        display: block;
        margin-bottom: 5px;
    }
}