:root {
  --primary-light: #3d6bb3;
  --primary: #0b3d91;
  --secondary-light: #fd6a56;
  --secondary: #fc3d21;
  --dark: #1a1a1a;
  --gray-dark: #333333;
  --gray-light: #cccccc;
  --gray-medium: #666666;
  --light: #f5f5f5;
  --white: #ffffff;
  --error: #f44336;
  --success: #4caf50;
  --warning: #ff9800;

  /* Extras */
  --border-radius: 8px;
  --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
  align-items: center;
  background-color: var(--light);
  color: var(--dark);
  display: flex;
  flex-direction: column;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  padding: 20px;
}

header, main, footer {
  max-width: 85vw;
  width: 1200px;
}

header {
  border-bottom: 2px solid var(--primary);
  margin-bottom: 30px;
  padding: 20px 0;
  text-align: center;
}

h1 {
  color: var(--primary);
}

h2 {
  border-bottom: 1px solid var(--gray-light);
  color: var(--primary);
  margin-bottom: 15px;
  padding-bottom: 5px;
}

#apod-container {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 10px var(--shadow);
  margin-bottom: 30px;
  padding: 20px;
}

.apod-media {
  margin-bottom: 15px;
}

.apod-media img,
.apod-media iframe {
  border-radius: calc(var(--border-radius) - 4px);
  display: block;
  margin: 0 auto;
  max-width: 100%;
}

.apod-info h3 {
  color: var(--secondary);
  margin-bottom: 10px;
}

.apod-date {
  color: var(--gray-medium);
  font-size: 0.9em;
  margin-bottom: 10px;
}

.apod-explanation {
  color: var(--gray-dark);
  margin-top: 15px;
}

.view-hd {
  color: var(--primary-light);
  display: inline-block;
  font-size: 0.9em;
  margin-top: 8px;
  text-decoration: none;
}

.view-hd:hover {
  color: var(--primary);
  text-decoration: underline;
}

#history-container {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.history-item {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 5px var(--shadow);
  overflow: hidden;
  transition: transform 0.2s;
}

.history-item:hover {
  transform: translateY(-5px);
}

.history-media {
  background: var(--gray-light);
  /* Fallback para vídeos */
  height: 200px;
  overflow: hidden;
}

.history-media img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.video-placeholder {
  align-items: center;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  color: var(--white);
  display: flex;
  height: 100%;
  justify-content: center;
  width: 100%;
}

.history-info {
  padding: 15px;
}

.history-info h3 {
  color: var(--dark);
  font-size: 1.1em;
  margin-bottom: 5px;
}

.history-date {
  color: var(--gray-medium);
  font-size: 0.8em;
}

.error {
  color: var(--error);
  padding: 20px;
  text-align: center;
}

footer {
  border-top: 1px solid var(--gray-light);
  color: var(--gray-medium);
  font-size: 0.9em;
  margin-top: 40px;
  padding: 20px 0;
  text-align: center;
}

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

footer a:hover {
  text-decoration: underline;
}

.loader {
  color: var(--gray-medium);
  padding: 20px;
  text-align: center;
}

@media (max-width: 768px) {
  #history-container {
    grid-template-columns: 1fr;
  }

  body {
    padding: 10px;
  }
}