/* Reset e Variáveis */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-blue: #4299e1;
  --primary-black: #000000;
  --primary-white: #ffffff;
  --gray-100: #f7fafc;
  --gray-200: #edf2f7;
  --gray-300: #e2e8f0;
  --gray-600: #718096;
  --gray-800: #2d3748;
  --green: #48bb78;
  --red: #f56565;

  /* Light Mode */
  --bg: var(--primary-white);
  --bg-sec: var(--gray-100);
  --text: var(--gray-800);
  --text-sec: var(--gray-600);
  --border: var(--gray-200);
  --accent: var(--primary-blue);
  --card-bg: var(--primary-white);

  /* Dark Mode */
  --dark-bg: #1a202c;
  --dark-bg-sec: #2d3748;
  --dark-text: #e2e8f0;
  --dark-text-sec: #a0aec0;
  --dark-border: #4a5568;
  --dark-accent: #4299e1;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
  --bg: var(--dark-bg);
  --bg-sec: var(--dark-bg-sec);
  --text: var(--dark-text);
  --text-sec: var(--dark-text-sec);
  --border: var(--dark-border);
  --accent: var(--dark-accent);
  --card-bg: var(--dark-bg-sec);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.header {
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: none;
  transition: background-color 0.3s;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 24px;
}

/* Logo styles updated for proper image display */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  flex-shrink: 0;
}

.logo-img {
  height: 32px;
  width: auto;
  object-fit: contain;
  display: block;
}

body.dark-mode .logo-img {
  filter: brightness(1.2);
}

/* Search bar centered and prominent */
.search-bar {
  flex: 1;
  max-width: 600px;
}

.search-bar input {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background-color: var(--bg-sec);
  color: var(--text);
  transition: border-color 0.2s;
}

.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Header actions with hamburger menu */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-link {
  color: var(--text-sec);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text);
}

.btn-primary {
  background-color: var(--accent);
  color: var(--primary-white);
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background-color: #2b6cb0;
}

/* Hamburger menu button always visible */
.menu-toggle {
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.2s;
}

.menu-toggle:hover {
  color: var(--accent);
}

/* Side menu for settings and dark mode */
.side-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100vh;
  background-color: var(--card-bg);
  border-left: 1px solid var(--border);
  z-index: 1000;
  transition: right 0.3s ease;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
}

.side-menu.active {
  right: 0;
}

.side-menu-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.side-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.side-menu-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.close-menu {
  background: none;
  border: none;
  color: var(--text-sec);
  font-size: 32px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

.close-menu:hover {
  color: var(--text);
}

.side-menu-body {
  padding: 8px 0;
  overflow-y: auto;
}

.menu-item {
  padding: 16px 20px;
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-item:hover {
  background-color: var(--bg-sec);
}

.menu-item-toggle {
  cursor: default;
}

/* Toggle switch for dark mode */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border);
  transition: 0.3s;
  border-radius: 24px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

/* Categories Navigation */
.categories-nav {
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0;
  overflow-x: auto;
}

.categories-scroll {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 16px;
}

.categories-scroll::-webkit-scrollbar {
  display: none;
}

.category-btn {
  padding: 12px 16px;
  border: none;
  background-color: transparent;
  color: var(--text-sec);
  border-bottom: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.category-btn:hover {
  color: var(--text);
}

.category-btn.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* Subcategories Bar */
.subcategories-bar {
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  overflow-x: auto;
}

.subcategories-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 16px;
}

.subcategories-scroll::-webkit-scrollbar {
  display: none;
}

.subcategory-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--text);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.subcategory-btn:hover {
  background-color: var(--accent);
  color: var(--primary-white);
  border-color: var(--accent);
}

.subcategory-btn.active {
  background-color: var(--accent);
  color: var(--primary-white);
  border-color: var(--accent);
}

/* Main Content */
.main-content {
  padding: 24px 0;
}

/* Info Banners */
.info-banners {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.info-card {
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.info-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: 700;
}

.info-card p {
  font-size: 14px;
  opacity: 0.9;
}

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

.card-blue {
  background-color: var(--accent);
  color: var(--primary-white);
}

.card-light-green {
  background-color: rgba(72, 187, 120, 0.1);
  color: var(--text);
  border: 1px solid var(--green);
}

/* Markets Section */
.markets-section {
  margin-top: 32px;
}

.markets-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.markets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.market-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  transition: all 0.3s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.market-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.market-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.market-image {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-sec);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.market-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

.market-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.market-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px;
  background-color: var(--bg-sec);
  border-radius: 4px;
}

.option-label {
  font-size: 13px;
  color: var(--text-sec);
  font-weight: 500;
}

.option-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.option-percentage {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  min-width: 35px;
  text-align: right;
}

.option-btn {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-weight: 600;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.option-yes {
  background-color: rgba(72, 187, 120, 0.1);
  color: var(--green);
  border-color: var(--green);
}

.option-yes:hover {
  background-color: var(--green);
  color: var(--primary-white);
}

.option-no {
  background-color: rgba(245, 101, 101, 0.1);
  color: var(--red);
  border-color: var(--red);
}

.option-no:hover {
  background-color: var(--red);
  color: var(--primary-white);
}

.market-footer {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-sec);
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.market-volume {
  font-weight: 500;
}

.btn-favorite {
  background: none;
  border: none;
  color: var(--text-sec);
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
}

.btn-favorite:hover {
  color: #ffd700;
  transform: scale(1.2);
}

.btn-favorite.favorited {
  color: #ffd700;
}

.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-sec);
  font-size: 16px;
  grid-column: 1 / -1;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--card-bg);
  border-radius: 8px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  animation: slideIn 0.3s;
}

@keyframes slideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  color: var(--text);
  margin: 0;
  font-size: 20px;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-sec);
  font-size: 24px;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  padding: 20px;
}

.how-it-works-step {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px;
  background-color: var(--bg-sec);
  border-radius: 6px;
}

.how-it-works-step:last-child {
  margin-bottom: 0;
}

.step-number {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent) 0%, #2b6cb0 100%);
  color: var(--primary-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.how-it-works-step h3 {
  color: var(--text);
  margin-bottom: 8px;
  font-size: 16px;
}

.how-it-works-step p {
  color: var(--text-sec);
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

/* Footer */
.footer {
  background-color: var(--bg-sec);
  color: var(--text);
  padding: 40px 0 20px;
  margin-top: 60px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-section h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.footer-section p {
  font-size: 14px;
  opacity: 0.8;
  color: var(--text-sec);
}

.footer-section a {
  display: block;
  color: var(--text-sec);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 8px;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer-section a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: 14px;
  opacity: 0.6;
  color: var(--text-sec);
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
  .markets-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .header-content {
    gap: 12px;
  }

  .search-bar {
    max-width: 400px;
  }
}

@media (max-width: 768px) {
  .header-content {
    gap: 12px;
  }

  .search-bar {
    flex: 1;
    max-width: none;
  }

  .nav-link {
    display: none;
  }

  .categories-scroll {
    padding: 0 12px;
  }

  .category-btn {
    padding: 10px 12px;
    font-size: 13px;
  }

  .markets-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 12px;
  }

  .market-card {
    padding: 12px;
  }

  .market-image {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  .market-title {
    font-size: 14px;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }

  .header-content {
    padding: 8px 0;
  }

  .btn-primary {
    display: none;
  }

  .categories-scroll {
    padding: 0 8px;
  }

  .category-btn {
    padding: 8px 10px;
    font-size: 12px;
  }

  .markets-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .market-option {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .option-buttons {
    width: 100%;
    justify-content: space-between;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .markets-title {
    font-size: 20px;
  }

  .modal-content {
    width: 95%;
  }

  .side-menu {
    width: 100%;
    right: -100%;
  }
}