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

body {
  font-family: Arial, sans-serif;
  color: #333;
  background-color: #f9f9f9;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  height: 100%;
}

.container {
  width: 100%;
  height: 100vh;
  display: grid;
  place-items: center;
  gap: 0;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  text-align: center;
  box-sizing: border-box; /* Ensure padding doesn't affect width */
}

.title {
  font-size: 2em;
  color: #333;
  margin-bottom: 1rem;
}

.upload-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.file-label {
  font-size: 1.1em;
  color: #555;
}

.file-input {
  padding: 8px;
  border-radius: 4px;
  border: 1px solid #ccc;
}

.submit-button {
  padding: 10px 20px;
  font-size: 1em;
  font-weight: bold;
  color: #fff;
  background-color: #4caf50;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.submit-button:hover {
  background-color: #45a049;
}

.result-section {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background-color: #f1f1f1;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.result-title {
  font-size: 1.5em;
  margin-bottom: 1rem;
  color: #333;
}

.result-text {
  font-size: 1.1em;
  color: #666;
  margin: 0.5rem 0;
}

.result-image {
  margin-top: 1rem;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.return-button {
  padding: 10px 20px;
  font-size: 1em;
  font-weight: bold;
  color: #fff;
  background-color: #4caf50;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  text-decoration: none;
}

.intervals-list {
  margin-bottom: 2rem;
}

ul {
  list-style-type: none;
  padding-left: 0; /* Optional: removes default left padding */
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
  /* Container adjustments for smaller screens */
  .container {
    width: 90%;
    height: auto;
    padding: 15px;
  }

  /* Title font size for better readability */
  .title {
    font-size: 1.5em;
  }

  /* Form layout adjustments */
  .upload-form {
    gap: 0.75rem;
  }

  .file-label {
    font-size: 1em;
  }

  .file-input {
    padding: 6px;
    font-size: 0.9em;
  }

  /* Button adjustments */
  .submit-button,
  .return-button {
    padding: 8px 16px;
    font-size: 0.9em;
  }

  /* Results section adjustments */
  .result-section {
    padding: 1rem;
  }

  .result-title {
    font-size: 1.3em;
  }

  .result-text {
    font-size: 1em;
  }

  .result-image {
    max-width: 90%;
  }

  /* Fake Frame Intervals list spacing */
  .intervals-list ul {
    padding-left: 10px; /* Adds a bit of space to the left */
  }

  /* Plot container adjustments */
  .plot-container {
    overflow-x: auto; /* Allows horizontal scrolling if plot exceeds screen width */
  }
}

/* Extra Small Screens (Phones) */
@media (max-width: 480px) {
  .title {
    font-size: 1.3em;
  }

  .file-label,
  .result-text {
    font-size: 0.9em;
  }

  .file-input {
    padding: 5px;
    font-size: 0.8em;
  }

  .submit-button,
  .return-button {
    padding: 6px 12px;
    font-size: 0.8em;
  }
}