/* ============================
   Acessibilidade - WCAG AA
   Radil Alimentos
   ============================ */

/* ===== SKIP-TO-CONTENT LINK ===== */
.skip-to-content {
    position: absolute;
    top: -9999px;
    left: 0;
    z-index: var(--z-modal);
    padding: 1rem;
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-to-content:focus {
    top: 0;
}

/* ===== FOCUS VISÍVEL EM TODOS OS ELEMENTOS ===== */
:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===== CONTRASTE DE CORES WCAG AA ===== */
/* Texto em fundos escuros */
a {
    color: var(--color-primary);
    text-decoration: underline;
}

a:visited {
    color: #6c0f17;
}

a:hover,
a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline wavy;
}

/* Texto em fundos claros */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-dark);
}

p, li, span {
    color: var(--color-text);
}

/* ===== LABELS VISÍVEIS ===== */
label {
    display: block;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
    display: block;
    font-size: 1rem; /* Previne zoom em iOS */
    border: 2px solid var(--color-border);
    padding: 0.75rem;
    border-radius: var(--radius-md);
}

input[type="text"]:focus-visible,
input[type="email"]:focus-visible,
input[type="tel"]:focus-visible,
input[type="number"]:focus-visible,
textarea:focus-visible,
select:focus-visible {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(192, 31, 37, 0.1);
}

/* ===== ÍCONES COM LABELS ===== */
.icon-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== BOTÕES COM CONTRASTE ADEQUADO ===== */
.btn-primary,
.btn-enviar {
    background: var(--color-primary);
    color: var(--color-white);
    border: 2px solid var(--color-primary);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    min-height: 44px; /* Tamanho mínimo para acessibilidade mobile */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
}

.btn-primary:hover,
.btn-enviar:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-primary:focus,
.btn-enviar:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

/* ===== TAMANHO MÍNIMO DE ALVO ===== */
button, a[role="button"], input[type="button"], input[type="submit"] {
    min-width: 44px;
    min-height: 44px;
    padding: 10px 16px;
}

/* ===== TEXTOS DE ASSISTÊNCIA ===== */
.help-text,
.form-text,
.error-message {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

/* ===== REDUÇÃO DE MOVIMENTO ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== MODO ALTO CONTRASTE ===== */
@media (prefers-contrast: more) {
    :root {
        --color-primary: #8B1420;
        --color-dark: #000000;
        --color-text: #000000;
        --color-border: #000000;
    }

    a {
        text-decoration: underline;
    }

    button,
    input[type="button"],
    input[type="submit"] {
        border: 2px solid #000000;
    }
}

/* ===== MODO ESCURO (PREFERÊNCIA DO USUÁRIO) ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --color-text: #f0f0f0;
        --color-text-light: #b0b0b0;
        --color-light: #1a1a1a;
        --color-border: #404040;
    }

    body {
        background-color: var(--color-dark);
        color: var(--color-text);
    }

    a {
        color: #ff6b6b;
    }

    a:visited {
        color: #ff8787;
    }
}

/* ===== TABINDEX ===== */
[tabindex="-1"] {
    outline: none;
}

/* ===== CONTEÚDO OCULTO PARA LEITORES ===== */
.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;
}

/* ===== CAPTIONS E LEGENDAS ===== */
caption,
figcaption {
    font-style: italic;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

/* ===== ESTRUTURA SEMÂNTICA ===== */
main {
    outline: none;
}

section {
    outline: none;
}

/* ===== MOBILE ACESSIBILIDADE ===== */
@media (max-width: 575px) {
    /* Aumentar tamanho de botões em mobile */
    button,
    a[role="button"],
    input[type="button"],
    input[type="submit"] {
        min-height: 48px;
    }

    /* Melhorar espaçamento de campos em mobile */
    label {
        margin-bottom: 0.75rem;
    }

    input,
    textarea,
    select {
        font-size: 16px; /* Previne zoom ao focar em iOS */
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    a::after {
        content: " (" attr(href) ")";
    }

    a[href^="tel"]::after,
    a[href^="mailto"]::after {
        content: "";
    }
}