/* ===== RESET E VARIÁVEIS ===== */
:root {
  --primary-color: #007bff;
  --primary-dark: #0056b3;
  --secondary-color: #6c757d;
  --accent-color: #ff5722;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --info-color: #17a2b8;

  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-light: #ffffff;

  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-dark: #343a40;
  --bg-light: #f1f3f4;

  --border-color: #dee2e6;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;

  --font-family: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  --container-max-width: 1200px;
  --grid-gap: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  overflow-x: hidden;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ===== COUNTDOWN TIMER ===== */
.countdown-timer {
  text-align: center;
  animation: fadeIn 1s ease-in-out;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 1rem 0;
  margin-bottom: 0;
}

.countdown-timer p {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

#timer {
  display: flex;
  justify-content: center;
  gap: 15px;
  font-size: 24px;
  font-weight: bold;
  color: white;
}

/* ===== HEADER ===== */
.header {
  background: #000000;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  min-height: 70px;
}

.logo-img {
  height: 40px;
  width: auto;
  transition: var(--transition);
}

.logo:hover .logo-img {
  transform: scale(1.05);
}

.nav-desktop {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--text-light);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-mobile {
  display: none;
  background-color: #000000;
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-link-mobile {
  display: block;
  color: var(--text-light);
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  margin-bottom: 0.5rem;
}

.nav-link-mobile:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* ===== FILTERS SECTION ===== */
.filters-section {
  background-color: var(--bg-primary);
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.filters-container {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.filter-label {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-label i {
  color: var(--primary-color);
}

.location-select {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  background-color: var(--bg-primary);
  transition: var(--transition);
  cursor: pointer;
  max-width: 300px;
}

.location-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  width: 100%;
  justify-content: flex-start;
  align-items: flex-start;
}

.category-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--font-size-sm);
  font-weight: 500;
  white-space: nowrap;
}

.category-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.category-btn.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-light);
  box-shadow: var(--shadow-md);
}

.category-btn i {
  font-size: 1rem;
}

/* ===== SECTIONS ===== */
.events-section {
  padding: 2rem 0;
  background-color: var(--bg-primary);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title i {
  color: var(--accent-color);
  font-size: var(--font-size-xl);
}

/* ===== GRIDS ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--grid-gap);
  margin-bottom: 2rem;
}

/* ===== EVENT CARDS ===== */
.event-card {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.event-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-image-container {
  position: relative;
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: var(--transition);
}

.event-card:hover .card-image {
  transform: scale(1.05);
}

.card-category {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.card-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.card-info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.card-info-item i {
  color: var(--primary-color);
  width: 16px;
}

.card-price {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.price-value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--success-color);
}

.btn-buy {
  background-color: var(--primary-color);
  color: var(--text-light);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
}

.btn-buy:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== SKELETON LOADING ===== */
.events-skeleton {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--grid-gap);
}

.skeleton-card {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-height: 320px;
  position: relative;
}

.skeleton-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* ===== LOADING STATES ===== */
.loading-indicator {
  display: none;
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.loading-indicator.show {
  display: block;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.no-more-events,
.no-events-found {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-secondary);
}

.no-more-events i,
.no-events-found i {
  font-size: 3rem;
  color: var(--success-color);
  margin-bottom: 1rem;
}

.no-events-found i {
  color: var(--warning-color);
}

.no-events-found h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-light);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1rem;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== FLOATING ACTION BUTTON ===== */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  background-color: var(--primary-color);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.fab i {
  font-size: 1.5rem;
}

.fab.show {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.fab:hover {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

/* ===== FOOTER ===== */
.footer {
  background: #007bff;
  color: #ffffff;
  padding: 3rem 0 1rem;
  margin-top: 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: 1rem;
  color: #ffffff;
}

.footer-section p {
  color: #e6f3ff;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.contact-info,
.footer-links,
.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-link,
.footer-links a,
.social-link {
  color: #e6f3ff;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-link:hover,
.footer-links a:hover,
.social-link:hover {
  color: #ffffff;
  transform: translateX(5px);
}

.social-link i {
  width: 20px;
  text-align: center;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: #e6f3ff;
}

/* ===== MODAL ===== */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 2001;
  max-width: 90vw;
  width: 90%;
  max-height: 90vh;
  overflow: auto;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-content {
  position: relative;
  padding: 1.5rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-mobile.show {
    display: block;
  }

  .filters-container {
    gap: 1.5rem;
  }

  .category-filters {
    gap: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    max-width: 100%;
    overflow: visible;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 0;
  }

  .category-btn {
    padding: 0.5rem 0.75rem;
    font-size: var(--font-size-xs);
    flex-shrink: 0;
    min-width: fit-content;
    max-width: calc(50% - 0.25rem);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

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

  .card-image {
    height: 160px;
  }

  .card-title {
    font-size: var(--font-size-base);
  }

  .card-content {
    padding: 1rem;
  }

  .fab {
    bottom: 1rem;
    right: 1rem;
    width: 48px;
    height: 48px;
  }

  .fab i {
    font-size: 1.25rem;
  }

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

  .contact-info,
  .footer-links,
  .social-links {
    align-items: center;
  }

  #timer {
    font-size: 18px;
    gap: 10px;
  }

  .countdown-timer p {
    font-size: 14px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .filters-container {
    grid-template-columns: 1fr 2fr;
    align-items: start;
  }

  .featured-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (min-width: 1025px) {
  .filters-container {
    grid-template-columns: 300px 1fr;
    align-items: start;
  }

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

/* ===== ANIMATIONS ===== */
.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.slide-up {
  animation: slideUp 0.5s ease-out;
}

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

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

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

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

/* ===== FOCUS STYLES ===== */
button:focus,
select:focus,
a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== ERROR STATES ===== */
.error-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-secondary);
}

.error-state i {
  font-size: 3rem;
  color: var(--danger-color);
  margin-bottom: 1rem;
}

.no-events {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== SCROLL IMPROVEMENTS ===== */
.category-filters::-webkit-scrollbar {
  height: 4px;
}

.category-filters::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 2px;
}

.category-filters::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 2px;
}

.category-filters::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}