/*
Theme Name: Portal News Pro
Theme URI: https://example.com/portal-news-pro
Author: Seu Nome
Author URI: https://example.com
Description: Tema profissional para portal de notícias com design moderno, minimalista e otimizado para performance. Inclui modo escuro/claro e otimização completa para PageSpeed.
Version: 1.0.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: portal-news-pro
Tags: news, magazine, blog, two-columns, custom-menu, featured-images, dark-mode
*/

/* ========================================
   Reset e Base
======================================== */
:root {
    /* Cores Light Mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --link-color: #0066cc;
    --link-hover: #0052a3;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0,0,0,0.15);
    
    /* Tipografia */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: "Georgia", serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Transições */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* Cores Dark Mode */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #e4e4e4;
    --text-secondary: #b4b4b4;
    --text-muted: #8a8a8a;
    --border-color: #4a4a4a;
    --link-color: #4da3ff;
    --link-hover: #66b3ff;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0,0,0,0.3);
    --shadow-md: 0 0.5rem 1rem rgba(0,0,0,0.4);
}

/* ========================================
   Base Elements
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* ========================================
   Typography
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    transition: color var(--transition-base);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* ========================================
   Header & Navigation
======================================== */
.site-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.header-top {
    padding: var(--spacing-sm) 0;
    background-color: var(--bg-secondary);
    font-size: 0.875rem;
}

.header-main {
    padding: var(--spacing-lg) 0;
}

.site-logo img {
    max-height: 50px;
    width: auto;
    transition: opacity var(--transition-base);
}

.main-navigation {
    background-color: var(--bg-secondary);
    padding: 0;
}

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

.main-navigation li {
    position: relative;
}

.main-navigation a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-base);
}

.main-navigation a:hover {
    background-color: var(--bg-tertiary);
    text-decoration: none;
}

/* Dropdown Menu */
.main-navigation .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-md);
    min-width: 200px;
    z-index: 999;
}

.main-navigation li:hover > .sub-menu {
    display: block;
}

/* ========================================
   Theme Toggle Button
======================================== */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
}

/* ========================================
   Content Area
======================================== */
.site-content {
    padding: var(--spacing-xxl) 0;
    min-height: 60vh;
}

.content-area {
    background-color: var(--bg-primary);
}

/* Articles */
.article-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    transition: var(--transition-base);
}

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

.article-thumbnail {
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border-radius: 8px;
}

.article-thumbnail img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.article-card:hover .article-thumbnail img {
    transform: scale(1.05);
}

.article-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.article-meta span {
    margin-right: var(--spacing-md);
}

.article-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.article-title a {
    color: var(--text-primary);
    text-decoration: none;
}

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

.article-excerpt {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.read-more {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--link-color);
    color: white;
    border-radius: 4px;
    transition: var(--transition-base);
    text-decoration: none;
}

.read-more:hover {
    background-color: var(--link-hover);
    transform: translateX(5px);
    text-decoration: none;
}

/* ========================================
   Single Post
======================================== */
.single-article {
    max-width: 800px;
    margin: 0 auto;
}

.single-article .article-header {
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.single-article .article-title {
    font-size: 2.5rem;
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
}

.single-article .article-content {
    font-size: 1.125rem;
    line-height: 1.8;
}

.single-article .article-content p {
    margin-bottom: var(--spacing-lg);
}

.single-article .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--spacing-xl) 0;
}

/* ========================================
   Sidebar
======================================== */
.site-sidebar {
    background-color: var(--bg-primary);
}

.widget {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.widget-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--link-color);
}

.widget ul {
    list-style: none;
    padding: 0;
}

.widget li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.widget li:last-child {
    border-bottom: none;
}

/* ========================================
   Footer
======================================== */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.footer-widgets {
    padding-bottom: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.footer-bottom {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   Pagination
======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-xxl) 0;
    gap: var(--spacing-sm);
}

.pagination a,
.pagination span {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 4px;
    text-decoration: none;
    transition: var(--transition-base);
}

.pagination a:hover {
    background-color: var(--link-color);
    color: white;
}

.pagination .current {
    background-color: var(--link-color);
    color: white;
}

/* ========================================
   Responsive
======================================== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .main-navigation ul {
        flex-direction: column;
    }
    
    .main-navigation .sub-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        background-color: var(--bg-tertiary);
    }
    
    .single-article .article-title {
        font-size: 1.75rem;
    }
}

/* ========================================
   Performance Optimizations
======================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   Print Styles
======================================== */
@media print {
    .site-header,
    .site-footer,
    .site-sidebar,
    .theme-toggle,
    .pagination {
        display: none;
    }
    
    body {
        color: black;
        background: white;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}