/* css/main.css */
:root {
    /* Color Palette */
    --color-sun-50: #fffbeb;
    --color-sun-100: #fef3c7;
    --color-sun-200: #fde68a;
    --color-sun-500: #f59e0b;
    --color-sun-600: #d97706;
    --color-sun-700: #b45309;   /* WCAG AA >= 5.0:1 com texto branco e sobre fundo branco */
    --color-sun-800: #92400e;
    --color-sun-900: #78350f;

    --color-health-50: #f0fdf4;
    --color-health-200: #bbf7d0;
    --color-health-600: #16a34a;
    --color-health-800: #166534;

    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    --color-danger-50: #fef2f2;
    --color-danger-200: #fecaca;
    --color-danger-600: #dc2626;
    --color-danger-800: #991b1b;

    /* Typography */
    --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

    /* Layout */
    --container-max: 1152px;
    --border-radius: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
}

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

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 72px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-gray-50);
    color: var(--color-gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 16px;
    width: 100%;
}

.hidden {
    display: none !important;
}

/* Header */
.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 56px;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    color: var(--color-gray-900);
    text-decoration: none;
    flex-shrink: 0;
}

.icon-sun {
    width: 32px;
    height: 32px;
    color: var(--color-sun-500);
    flex-shrink: 0;
}

.main-nav ul {
    display: flex;
    gap: 24px;
    list-style: none;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-gray-600);
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

.main-nav a:hover {
    color: var(--color-sun-700);
}

/* Footer */
.main-footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 20px 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.footer-brand p {
    font-size: 0.75rem;
    color: var(--color-gray-400);
    margin-top: 4px;
}

.footer-copy {
    font-size: 0.875rem;
    color: var(--color-gray-300);
    flex-shrink: 0;
}

.footer-links {
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--color-gray-300);
}

.footer-links a {
    color: var(--color-gray-300);
    text-decoration: underline;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-langs {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
    font-size: 0.8125rem;
}

.footer-langs a {
    color: var(--color-gray-400);
    text-decoration: none;
}

.footer-langs a:hover,
.footer-langs a[aria-current="page"] {
    color: #ffffff;
    text-decoration: underline;
}

.footer-langs a[aria-current="page"] {
    font-weight: 600;
}

/* Legal & Informational Pages */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin-bottom: 12px;
}

.breadcrumb a {
    color: var(--color-sun-700);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.legal-content {
    line-height: 1.7;
    color: var(--color-gray-700);
    max-width: 860px;
    width: 100%;
    min-width: 0;
    margin: 16px auto;
}

.legal-content h1 {
    font-size: 1.75rem;
    color: var(--color-gray-900);
    margin-bottom: 8px;
}

.legal-content .last-updated {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin-bottom: 24px;
}

.legal-content h2 {
    font-size: 1.25rem;
    color: var(--color-gray-900);
    margin-top: 24px;
    margin-bottom: 10px;
}

.legal-content p, .legal-content ul {
    margin-bottom: 14px;
}

.legal-content a:not(.btn-primary) {
    color: var(--color-sun-700);
}

.legal-content ul {
    padding-left: 24px;
}

.legal-content li {
    margin-bottom: 6px;
}

.legal-content .disclaimer-box {
    background-color: var(--color-sun-50);
    border-left: 4px solid var(--color-sun-500);
    padding: 16px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.legal-content .disclaimer-box h2 {
    margin-top: 0;
}

.contact-email {
    font-size: 1.15rem;
    margin-top: 12px;
}

.contact-email a,
.contact-link {
    font-weight: 600;
}

.methodology-cta {
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* Guides Library & Reference Tables */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.guide-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.guide-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 10px;
    padding: 18px;
    text-decoration: none;
    color: var(--color-gray-700);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.guide-card:hover {
    border-color: var(--color-sun-600);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.guide-card h2,
.guide-card h3 {
    font-size: 1.05rem;
    line-height: 1.4;
    color: var(--color-gray-900);
    margin: 0 0 8px 0;
}

.guide-card p {
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--color-gray-600);
    margin: 0 0 12px 0;
    flex-grow: 1;
}

.guide-more {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-sun-700);
}

.guide-divider {
    border: 0;
    border-top: 1px solid var(--color-gray-200);
    margin: 28px 0 20px;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
    margin: 16px 0 20px;
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
    min-width: 520px;
}

.data-table th,
.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-gray-200);
}

.data-table thead th {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
    font-weight: 600;
    white-space: nowrap;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--color-gray-50);
}