/* =========================================================
   assets/css/base.css
   Estilos globais: reset, variáveis, layout, header, footer,
   article cards, paginação, utilitários e animações.
   Carregado em TODAS as páginas.
   ========================================================= */

/* ===========================
   1. RESET & VARIÁVEIS GLOBAIS
   =========================== */

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

:root {
    /* Colors - Minimal & Clean */
    --primary-color: #000000;
    --secondary-color: #3B82F6;
    --accent-color: #10B981;
    --text-primary: #242121;
    --text-secondary: #64686e;
    --text-light: #9CA3AF;
    --bg-primary: #fcfcfc;
    --bg-secondary: #FAFAFA;
    --bg-hover: #F5F5F5;
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 4rem;

    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    --line-height-tight: 1.2;

    /* Transitions e shadows */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --max-width: 1100px;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
}

/* ===========================
   2. LAYOUT BASE
   =========================== */

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

.main-content {
    min-height: 70vh;
}

section {
    padding: var(--spacing-xl) 0;
}

/* ===========================
   3. BUTTONS
   =========================== */

.btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid;
}

.btn-primary {
    padding: 0.7rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary:hover {
    background: #333;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--text-primary);
}

/* ===========================
   4. HEADER & NAVIGATION
   =========================== */

.site-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.navbar {
    padding: 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 75px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
    margin: 0;
}

.nav-item a {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.nav-item:hover a,
.nav-item.active a {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        display: none;
        opacity: 0;
        transform: translateY(-10px);
        transition: all var(--transition-fast);
    }

    .nav-menu.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
    }

    .nav-item {
        width: 100%;
        text-align: center;
    }

    .nav-item a {
        display: block;
        padding: var(--spacing-sm) 0;
        font-size: 1.1rem;
    }

    .logo img {
        height: 60px;
    }
}

/* ===========================
   5. HERO GENÉRICO
   Compacto e centralizado — usado em todas as páginas internas
   =========================== */

.hero {
    max-width: 900px;
    margin: 0 auto;
    padding: 0.5rem 1rem 0.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.hero .hero-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0;
    margin: 0;
}

.hero .hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero .hero-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.hero .hero-subtitle .highlight {
    color: var(--text-primary);
    text-decoration: underline;
    text-decoration-color: var(--border-color);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.hero .hero-subtitle .highlight:hover {
    text-decoration-color: var(--secondary-color);
}

.hero .hero-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    max-width: 680px;
}

/* ===========================
   6. TITLES & TYPOGRAPHY
   =========================== */

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.view-all {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.view-all:hover {
    color: var(--text-primary);
}

.section-subtitle {
    color: #555;
    font-size: 1.1rem;
    margin-top: 1rem;
}

.section-divider {
    border: 0;
    border-top: 2px solid var(--secondary-color);
    margin: 1rem 0;
    width: 60px;
}

/* ===========================
   7. ARTICLE CARDS (compartilhado: home + artigos)
   =========================== */

.articles-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
}

.articles-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.articles-section .section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.articles-section .view-all {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--secondary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.articles-section .view-all:hover {
    color: var(--primary-color);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.article-card {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.article-thumb {
    display: flex;
    width: 100%;
    height: 180px;
    object-fit: cover;
    object-position: 50% 50%;
}

.article-content {
    padding: var(--spacing-md);
}

.article-category {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
}

.article-category a {
    color: var(--secondary-color);
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 600;
}

.article-category a:hover {
    color: var(--primary-color);
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.4;
    color: var(--text-primary);
}

.article-title a {
    color: inherit;
    text-decoration: none;
}

.article-title a:hover {
    color: var(--secondary-color);
}

.article-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-base);
}

.article-meta {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-light);
}

.article-meta span {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.article-date,
.article-views {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-views {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.4rem !important;
    font-size: 0.875rem !important;
    color: var(--text-light) !important;
    white-space: nowrap !important;
    flex-wrap: nowrap !important;
}

.article-card .article-meta .article-views {
    visibility: visible !important;
    opacity: 1 !important;
    max-width: 100% !important;
    overflow: visible !important;
}

.article-single-category {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    text-decoration: none;
}

.article-single-category:hover {
    color: var(--secondary-color);
}

@media screen and (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        justify-items: center;
        justify-content: center;
    }

    .article-card {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media screen and (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .section-title {
        text-align: center;
        font-size: 1.8rem;
    }
}

/* ===========================
   8. PAGINATION
   =========================== */

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.pagination a {
    display: inline-block;
    padding: 8px 14px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background-color: var(--bg-hover);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.pagination a.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    pointer-events: none;
}

/* ===========================
   9. FOOTER
   =========================== */

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.newsletter-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.01em;
}

.newsletter-section p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-width: 450px;
    margin: 0 auto;
}

.newsletter-input {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

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

.newsletter-input::placeholder {
    color: var(--text-light);
}

.newsletter-btn {
    width: 100%;
    padding: 0.7rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-xs);
}

.newsletter-btn:hover {
    background: #333;
}

.newsletter-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.newsletter-message.success {
    background: #D1FAE5;
    color: #065F46;
}

.newsletter-message.error {
    background: #FEE2E2;
    color: #991B1B;
}

.footer-content {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: grid;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-column h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.social-links a:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: white;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.footer-legal a {
    color: var(--text-light);
}

.footer-legal a:hover {
    color: var(--text-primary);
}

/* ===========================
   10. UTILITY & MISC
   =========================== */

.no-content {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    color: var(--text-secondary);
}

.no-content h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-section {
    background: var(--bg-secondary);
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.page-header {
    background: var(--bg-primary);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

::selection {
    background: var(--primary-color);
    color: white;
}

/* ===========================
   11. ANIMATIONS & EFFECTS
   =========================== */

.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    z-index: 999;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--secondary-color);
    width: 0%;
    z-index: 1001;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

/* ===========================
   12. DARK MODE
   =========================== */

body.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #ffffff;
    --border-color: #333;
}