:root {
  --background-color: #1a1a1a;
  --sidebar-color: #242424;
  --card-color: #2c2c2c;
  --primary-color: #00aaff;
  --text-color: #f0f0f0;
  --text-muted-color: #a0a0a0;
  --border-color: #444;
  --success-color: #28a745;
  --success-bg-color: rgba(40, 167, 69, 0.1);
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}

#app-container {
  display: flex;
  height: 100vh;
}

#sidebar {
  width: 350px;
  background-color: var(--sidebar-color);
  padding: 2rem;
  overflow-y: auto;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

#sidebar h1 {
  font-size: 1.8rem;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 1rem;
}

.sidebar-section h2 {
  font-size: 1.2rem;
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

#main-content {
  flex-grow: 1;
  padding: 2rem;
  overflow-y: auto;
}

#welcome-message {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  text-align: center;
}

#welcome-message h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

#welcome-message p {
  font-size: 1.2rem;
  color: var(--text-muted-color);
}

#results-container {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1fr;
}

.result-card {
    background-color: var(--card-color);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.result-card h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Forms */
label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
  color: var(--text-muted-color);
}

input[type='file'],
select {
  width: 100%;
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: var(--font-family);
}

.file-upload {
    margin-bottom: 1rem;
}

.file-name-display {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted-color);
    font-style: italic;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


input[type='file']::file-selector-button {
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  margin-right: 1rem;
}

.button-primary {
  width: 100%;
  padding: 0.85rem;
  font-size: 1rem;
  font-weight: bold;
  color: #fff;
  background-color: var(--primary-color);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  margin-top: 1rem;
}

.button-primary:hover:not(:disabled) {
  background-color: #0088cc; /* A slightly darker shade for hover */
}

.button-primary:disabled {
  background-color: var(--border-color);
  color: var(--text-muted-color);
  cursor: not-allowed;
}


/* Multi-select custom dropdown */
.multiselect {
    position: relative;
}

.multiselect-display {
    width: 100%;
    padding: 0.75rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: var(--background-color);
    color: var(--text-color);
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.multiselect-options {
    display: none;
    position: absolute;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
    width: 100%;
    z-index: 100;
}
.multiselect-options.visible {
    display: block;
}
.multiselect-options label {
    display: block;
    padding: 0.5rem 1rem;
    cursor: pointer;
}
.multiselect-options label:hover {
    background-color: var(--primary-color);
    color: white;
}
.multiselect-options input {
    margin-right: 0.5rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

th,
td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

thead {
  background-color: var(--sidebar-color);
}

tbody tr:nth-child(even) {
  background-color: var(--background-color);
}

#probabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.probability-item h4 {
    color: var(--text-muted-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.probability-item p {
    font-size: 1.1rem;
    font-weight: bold;
}

#summary-card {
    border-left: 4px solid var(--success-color);
    background-color: var(--success-bg-color);
}

#summary-card p {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Utility */
.hidden {
  display: none !important;
}

/* Loader */
#loader {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background-color: var(--card-color);
    border-radius: 8px;
}
.spinner {
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}


/* Responsive */
@media (max-width: 900px) {
  #app-container {
    flex-direction: column;
    height: auto;
  }
  #sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
}