:root {
  --primary: #FF3E41;
  --primary-hover: #D62C2F;
  --secondary: #4285F4;
  --secondary-hover: #3367D6;
  --accent: #FFC107;
  --dark: #1A1A1A;
  --light: #FFFFFF;
  --gray: #5F6368;
  --light-gray: #F8F9FA;
  --border-color: #E0E0E0;
  --polygon-1: #FF3E41;
  --polygon-2: #4285F4;
  --polygon-3: #34A853;
  --polygon-4: #FBBC05;

  --space-4xs: 0.0625rem; /* 1px */
  --space-3xs: 0.125rem; /* 2px */
  --space-2xs: 0.25rem;  /* 4px */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 0.75rem;   /* 12px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4rem;     /* 64px */

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);

  --polygon-1: polygon(0% 15%, 15% 15%, 15% 0%, 85% 0%, 85% 15%, 100% 15%, 100% 85%, 85% 85%, 85% 100%, 15% 100%, 15% 85%, 0% 85%);
  --polygon-2: polygon(0 10%, 10% 0, 100% 0, 100% 90%, 90% 100%, 0 100%);
  --polygon-3: polygon(20% 0%, 80% 0%, 100% 20%, 100% 80%, 80% 100%, 20% 100%, 0% 80%, 0% 20%);
  --polygon-border: polygon(
    0% 15%, 15% 15%, 15% 0%, 85% 0%, 85% 15%,
    100% 15%, 100% 85%, 85% 85%, 85% 100%,
    15% 100%, 15% 85%, 0% 85%
  );

  --polygon-border-sm: polygon(
    0% 10%, 10% 10%, 10% 0%, 90% 0%, 90% 10%,
    100% 10%, 100% 90%, 90% 90%, 90% 100%,
    10% 100%, 10% 90%, 0% 90%
  );

  /* Transições */
  --transition-base: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  --transition-slow: all 0.5s cubic-bezier(0.215, 0.61, 0.355, 1);
  --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

html {
  scroll-behavior: smooth;
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--light-gray);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  color: var(--dark);
  letter-spacing: -0.02em;
  text-align: center;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h5 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
h6 { font-size: clamp(1rem, 2vw, 1.25rem); }

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  text-align: center;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition-base);
  position: relative;
}

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

/* Efeito de sublinhado poligonal */
a.poly-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

a.poly-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Layout Principal */
.content-wrapper {
  padding: var(--space-xl) 0;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Grid Poligonal */
.poly-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  position: relative;
}

.poly-grid::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg,
    var(--polygon-1) 0%,
    var(--polygon-2) 20%,
    var(--polygon-3) 40%,
    var(--polygon-4) 60%,
    var(--polygon-1) 80%);
  background-size: 200% 200%;
  z-index: -1;
  clip-path: var(--polygon-border);
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.main-header {
  background-color: var(--light);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-sm);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
  transition: var(--transition-slow);
  overflow: hidden; /* Added to ensure smooth upward hide */
}

.main-header.scrolled {
  padding: 0; /* Minimal padding */
  transform: translateY(-100%); /* Moves header completely up */
  box-shadow: none; /* No shadow when hidden */
  clip-path: none; /* No need for clip-path when completely hidden */
}

.main-header.scrolled .logo {
    font-size: clamp(0.9rem, 2vw, 1.5rem);
}

.main-header.scrolled .main-nav a {
    font-size: 0.65rem;
    padding: 0.1rem 0.5rem;
}

.header-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: var(--space-sm);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

.logo::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
    var(--polygon-1),
    var(--polygon-2),
    var(--polygon-3),
    var(--polygon-4));
  clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
}

.main-nav {
  width: 100%;
}

.main-nav ul {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  list-style: none;
  flex-wrap: wrap;
}

.main-nav li {
  position: relative;
}

.main-nav a {
  font-weight: 600;
  color: var(--dark);
  padding: var(--space-xs) var(--space-sm);
  display: block;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.main-nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.main-nav a:hover::before {
  width: 80%;
}

.category-nav {
  margin-top: var(--space-xl);
  padding-bottom: var(--space-lg);
  width: 100%;
}

.category-nav ul {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  list-style: none;
}

.category-btn {
  background-color: transparent;
  color: var(--dark);
  border: 2px solid var(--border-color);
  padding: var(--space-2xs) var(--space-md);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.category-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent);
  transition: all 0.5s ease;
}

.category-btn:hover::before {
  left: 100%;
}

.category-btn.active {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 15px rgba(255, 62, 65, 0.3);
}

.hero-section {
  background: linear-gradient(135deg, rgba(255, 62, 65, 0.1), rgba(66, 133, 244, 0.1));
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-2xl);
  clip-path: var(--polygon-border);
  padding: var(--space-2xl);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon fill="white" points="0,100 100,0 100,100"/></svg>') no-repeat;
  background-size: 30% 30%;
  opacity: 0.05;
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-bottom: var(--space-md);
  line-height: 1.1;
  background: linear-gradient(90deg,
    var(--polygon-1),
    var(--polygon-2),
    var(--polygon-3),
    var(--polygon-4));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradientShift 8s ease infinite;
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  line-height: 1.6;
  color: var(--gray);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.noticia {
  background-color: var(--light);
  border-radius: 0;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  clip-path: var(--polygon-border-sm);
  box-shadow: var(--shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.noticia:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.noticia-img-container {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.noticia-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.noticia:hover .noticia-img {
  transform: scale(1.1);
}

.noticia-tag {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background-color: var(--primary);
  color: white;
  padding: var(--space-2xs) var(--space-sm);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  clip-path: polygon(0 0, 100% 0, 90% 100%, 10% 100%);
  z-index: 2;
}

.noticia-content {
  padding: var(--space-lg);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.noticia-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.noticia-title a {
  color: var(--dark);
  transition: var(--transition-base);
}

.noticia-title a:hover {
  color: var(--primary);
}

.noticia-meta {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.noticia-desc {
  margin-bottom: var(--space-md);
  color: var(--gray);
  flex-grow: 1;
}

.ler-mais {
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  margin-top: auto;
  align-self: center;
}

.ler-mais::after {
  content: '→';
  transition: transform 0.3s ease;
}

.ler-mais:hover::after {
  transform: translateX(3px);
}

/* Destaque Poligonal */
.news-highlight {
  background: linear-gradient(135deg, rgba(255, 62, 65, 0.05), rgba(66, 133, 244, 0.05));
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
  clip-path: var(--polygon-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  position: relative;
  overflow: hidden;
  text-align: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.news-highlight::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: linear-gradient(45deg,
    transparent,
    rgba(255, 62, 65, 0.05),
    transparent);
  transform: rotate(30deg);
  z-index: -1;
}

.news-highlight-image {
  flex-shrink: 0;
  width: 80%;
  max-width: 250px;
  height: 180px;
  object-fit: cover;
  clip-path: var(--polygon-border-sm);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  margin: 0 auto;
}

.news-highlight:hover .news-highlight-image {
  transform: scale(1.05);
}

.news-highlight-content {
  flex-grow: 1;
}

.news-highlight-title {
  font-size: clamp(1.2rem, 3.5vw, 2rem);
  margin-bottom: var(--space-sm);
  line-height: 1.2;
  color: var(--primary);
}

.news-highlight-excerpt {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--dark);
  margin-bottom: var(--space-md);
}

.single-news-article {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl) 0;
}

.news-header {
  margin-bottom: var(--space-xl);
}

.news-title {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--dark);
}

.news-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  color: var(--gray);
  font-size: 0.9rem;
}

.news-image {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  margin-bottom: var(--space-xl);
  clip-path: var(--polygon-border-sm);
  box-shadow: var(--shadow-md);
  margin-left: auto;
  margin-right: auto;
}

.news-content {
  line-height: 1.8;
  font-size: 1.1rem;
  color: var(--dark);
  text-align: center;
}

.news-content p {
  margin-bottom: var(--space-lg);
}

.news-content img {
  margin: var(--space-xl) auto;
  clip-path: var(--polygon-border-sm);
  box-shadow: var(--shadow-md);
  max-height: 400px;
  width: auto;
  max-width: 100%;
}

.news-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--space-lg);
  margin: var(--space-xl) auto;
  font-style: italic;
  color: var(--gray);
  position: relative;
  max-width: 90%;
  text-align: left;
}

.news-content blockquote::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: -10px;
  font-size: 4rem;
  color: rgba(255, 62, 65, 0.1);
  z-index: -1;
}

.share-section {
  padding: var(--space-xl);
  margin: var(--space-2xl) auto;
  background: linear-gradient(135deg, rgba(255, 62, 65, 0.05), rgba(66, 133, 244, 0.05));
  clip-path: var(--polygon-border-sm);
  max-width: 800px;
}

.share-title {
  margin-bottom: var(--space-lg);
}

.share-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0;
  font-weight: 600;
  transition: var(--transition-base);
  clip-path: polygon(0 0, 100% 0, 90% 100%, 10% 100%);
  min-width: 120px;
  justify-content: center;
}

.share-btn.facebook {
  background-color: #3b5998;
  color: white;
}

.share-btn.twitter {
  background-color: #1da1f2;
  color: white;
}

.share-btn.linkedin {
  background-color: #0077b5;
  color: white;
}

.share-btn.whatsapp {
  background-color: #25d366;
  color: white;
}

.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.related-news-section {
  margin: var(--space-2xl) 0;
}

.related-news-title {
  margin-bottom: var(--space-xl);
}

.related-news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.related-news-item {
  background-color: var(--light);
  transition: var(--transition-base);
  clip-path: var(--polygon-border-sm);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
  text-align: center;
}

.related-news-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.related-news-item img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  margin-bottom: var(--space-md);
  clip-path: var(--polygon-border-sm);
}

.related-news-item h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.related-news-item h4 a {
  color: var(--dark);
}

.related-news-item h4 a:hover {
  color: var(--primary);
}

/* New section: Games & Quizzes */
.games-quizzes-section {
  margin: var(--space-2xl) 0;
  text-align: center;
}

.games-quizzes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.game-quiz-item {
  background-color: var(--light);
  padding: var(--space-lg);
  border-radius: 0;
  box-shadow: var(--shadow);
  transition: var(--transition-base);
  clip-path: var(--polygon-border-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.game-quiz-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.game-quiz-item img {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  margin-bottom: var(--space-md);
  clip-path: var(--polygon-border-sm);
}

.game-quiz-item h4 {
  font-size: 1.3rem;
  margin-bottom: var(--space-xs);
}

.game-quiz-item h4 a {
  color: var(--dark);
}

.game-quiz-item h4 a:hover {
  color: var(--primary);
}

.game-quiz-item p {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 0;
}

/* Footer corrigido */
.main-footer {
  background-color: var(--dark);
  color: white;
  padding: var(--space-2xl) 0;
  margin-top: var(--space-2xl);
  clip-path: polygon(0 10%, 100% 0, 100% 100%, 0% 100%);
  position: relative;
}

.main-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon fill="rgba(255,255,255,0.05)" points="0,100 100,0 100,100"/></svg>') no-repeat;
  background-size: 30% 30%;
  z-index: 0;
}

.footer-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: white;
  text-align: center;
}

.footer-about p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-md);
  text-align: center;
}

.footer-links h5,
.footer-contact h5 {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: white;
  position: relative;
  padding-bottom: var(--space-xs);
  text-align: center;
}

.footer-links h5::after,
.footer-contact h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.footer-links ul {
  list-style: none;
  text-align: center;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-base);
  display: inline-block;
}

.footer-links a:hover {
  color: white;
  transform: translateX(0);
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  justify-content: center;
}

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.newsletter-section {
  background: linear-gradient(135deg, rgba(255, 62, 65, 0.1), rgba(66, 133, 244, 0.1));
  padding: var(--space-xl);
  margin: var(--space-2xl) auto;
  clip-path: var(--polygon-border-sm);
  max-width: 800px;
}

.newsletter-title {
  margin-bottom: var(--space-md);
}

.newsletter-desc {
  margin-bottom: var(--space-lg);
  color: var(--gray);
}

.newsletter-form {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-input {
  flex-grow: 1;
  min-width: 250px;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--border-color);
  border-radius: 0;
  font-size: 1rem;
  clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
  transition: var(--transition-base);
  text-align: center;
}

.newsletter-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 62, 65, 0.2);
}

.newsletter-btn {
  background-color: var(--primary);
  color: white;
  border: none;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 90% 100%, 10% 100%);
  transition: var(--transition-base);
}

.newsletter-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0;
  font-weight: 600;
  transition: var(--transition-base);
  cursor: pointer;
  border: none;
  text-align: center;
  user-select: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  clip-path: polygon(0 0, 100% 0, 90% 100%, 10% 100%);
  position: relative;
  overflow: hidden;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--dark);
}

.btn-accent:hover {
  background-color: #e0a800;
}

.badge {
  display: inline-block;
  padding: var(--space-2xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  clip-path: polygon(0 0, 100% 0, 90% 100%, 10% 100%);
}

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

.badge-secondary {
  background-color: var(--secondary);
  color: white;
}

.badge-accent {
  background-color: var(--accent);
  color: var(--dark);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --dark: #F5F5F5;
    --light: #121212;
    --gray: #A0A0A0;
    --light-gray: #1E1E1E;
    --border-color: #333333;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  }

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

  .main-header,
  .noticia,
  .news-highlight,
  .share-section,
  .related-news-item,
  .newsletter-section,
  .game-quiz-item {
    background-color: #1E1E1E;
    border-color: #333333;
  }

  .news-highlight::before {
    background: linear-gradient(45deg,
      transparent,
      rgba(255, 62, 65, 0.1),
      transparent);
  }

  .main-footer {
    background-color: #0A0A0A;
  }

  .category-btn {
    background-color: #333333;
    color: var(--dark);
    border-color: #444444;
  }

  .category-btn.active {
    background-color: var(--primary);
    color: white;
  }

  .news-content {
    color: rgba(255, 255, 255, 0.9);
  }

  .news-content p {
    color: rgba(255, 255, 255, 0.8);
  }

  .news-content blockquote {
    color: rgba(255, 255, 255, 0.6);
  }
}

/* Responsividade Avançada */
@media (max-width: 1024px) {
  .hero-section {
    min-height: 50vh;
    padding: var(--space-xl);
  }

  .news-highlight {
    flex-direction: column;
    padding: var(--space-lg);
  }

  .news-highlight-image {
    width: 90%;
    max-width: 300px;
  }
}

@media (max-width: 768px) {
  .header-top {
    flex-direction: column;
    gap: var(--space-md);
  }

  .main-nav ul {
    gap: var(--space-sm);
  }

  .hero-section {
    min-height: auto;
    padding: var(--space-lg);
    clip-path: var(--polygon-border-sm);
  }

  .news-list {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-input,
  .newsletter-btn {
    width: 100%;
    clip-path: polygon(0 0, 100% 0, 95% 100%, 5% 100%);
  }

  .games-quizzes-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero-section {
    padding: var(--space-md);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .noticia-img-container {
    height: 150px;
  }

  .noticia-content {
    padding: var(--space-md);
  }

  .news-meta {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
  }

  .share-buttons {
    flex-direction: column;
    align-items: center;
  }

  .share-btn {
    width: 100%;
  }
}

.hover-scale {
  transition: transform 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.03);
}

.hover-rotate {
  transition: transform 0.5s ease;
}

.hover-rotate:hover {
  transform: rotate(2deg);
}

.glow {
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 5px rgba(255, 62, 65, 0.5);
  }
  to {
    box-shadow: 0 0 20px rgba(255, 62, 65, 0.8);
  }
}

[data-animate] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] {
  transform: translateY(20px);
}

[data-animate="fade-down"] {
  transform: translateY(-20px);
}

[data-animate="fade-left"] {
  transform: translateX(-20px);
}

[data-animate="fade-right"] {
  transform: translateX(20px);
}

[data-animate].animated {
  opacity: 1;
  transform: translate(0, 0);
}

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--light);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.preloader.fade-out {
  opacity: 0;
  pointer-events: none;
}

.preloader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preloader-spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(255, 62, 65, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-md);
}

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

.preloader-text {
  font-size: 1rem;
  color: var(--dark);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Adicione estas regras ao seu CSS existente */

/* Links de notícia */
.news-card-link, .highlight-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

.news-card-link:hover .news-card,
.highlight-link:hover .highlight-card {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* Ajustes para os cards */
.news-card, .highlight-card {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Skeletons de carregamento */
.skeleton-card {
    background-color: var(--light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-md);
}

.skeleton {
    background-color: var(--light-gray);
    border-radius: 4px;
    animation: skeleton-loading 1.5s infinite ease-in-out;
}

.skeleton-img {
    height: 200px;
    width: 100%;
    margin-bottom: var(--space-md);
}

.skeleton-title {
    height: 24px;
    width: 80%;
    margin-bottom: var(--space-sm);
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--space-xs);
}

@keyframes skeleton-loading {
    0% { opacity: 0.6; }
    50% { opacity: 0.3; }
    100% { opacity: 0.6; }
}

/* Ajustes para a página de notícia individual */
.article-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    margin-bottom: var(--space-xl);
    border-radius: var(--border-radius-md);
}

.article-meta {
    color: var(--gray);
    margin-bottom: var(--space-lg);
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.article-content {
    line-height: 1.8;
    font-size: 1.1rem;
    text-align: left;
}

.article-content p {
    margin-bottom: var(--space-md);
    text-align: left;
}

/* Ajustes para dark mode */
@media (prefers-color-scheme: dark) {
    .skeleton {
        background-color: #333;
    }
    
    .news-card-link, .highlight-link {
        color: var(--dark);
    }
}

.search-bar {
    width: 100%;
    max-width: 600px;
    margin: var(--space-md) auto 0;
    transition: var(--transition-slow);
    opacity: 1;
    height: auto;
    overflow: visible;
    position: relative;
    z-index: 10;
}

.search-bar input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 50px;
    font-size: 0.9rem;
    transition: var(--transition-base);
    background-color: black;
    color: white;
}

.search-bar input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 62, 65, 0.2);
}

.main-header.scrolled .search-bar {
    opacity: 0;
    height: 0;
    overflow: hidden;
    margin: 0;
    padding: 0;
    transform: scale(0.9);
    pointer-events: none;
}

/* Garante que a barra de pesquisa fique escura em ambos os modos */
.search-bar input {
    background-color: black;
    color: var(--light);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* Ajustes para dark mode */
@media (prefers-color-scheme: dark) {
    .search-bar input {
        background-color: black;
        color: var(--light);
    }
}