/* Base and Navigation Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
    background-color: #030712; /* Darker background */
    color: #e5e7eb;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.top-bar {
    background-color: #1a1a1a;
    padding: 12.5px 20px;
    flex-shrink: 0;
    z-index: 1000;
}
.top-bar nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-start;
    margin: 0;
    padding: 0;
}
.top-bar nav ul li {
    margin-right: 20px;
}
.top-bar nav ul li a {
    text-decoration: none;
    color: #eee;
    font-weight: bold;
}
.top-bar nav ul li a:hover,
.top-bar nav ul li a.active-link {
    color: #4bc0c0;
}

button {
    padding: 10px 18px;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease, opacity 0.2s ease;
    font-size: 1em;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Main App Layout and Styles */
main.container {
    flex-grow: 1;
    margin: 20px; /* Gap from page edges */
    padding: 0;
    display: flex;
    gap: 20px;
    height: calc(100vh - 100px);
}

.panel {
    background-color: #1f2937;
    border: 1px solid #374151;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.file-panel {
    width: 30%; /* Smaller controls panel */
    min-width: 300px;
}

.preview-panel {
    width: 70%; /* Larger preview panel */
    background-color: transparent;
    border: none;
    padding: 0;
}

h2 {
    color: #e5e7eb;
    margin-bottom: 15px;
    border-bottom: 1px solid #333;
    padding-bottom: 10px;
}

/* Controls Panel (Left) */
.panel-header {
    margin-bottom: 16px;
}
.panel-header h1 {
    font-size: 1.5em;
    font-weight: bold;
    color: #f9fafb;
}
.panel-header p {
    color: #9ca3af;
    margin-top: 4px;
}
.prompt-section {
    margin-bottom: 24px;
}
.prompt-section label {
    display: block;
    font-size: 0.875em;
    font-weight: 500;
    color: #d1d5db;
    margin-bottom: 8px;
}

#prompt-input {
    width: 100%;
    height: 200px;
    background-color: #374151;
    color: #eee;
    border: 1px solid #4b5563;
    border-radius: 4px;
    padding: 10px;
    font-size: 1em;
    resize: vertical;
}

/* Drop Zone (Left Panel) */
#drop-zone {
    border: 2px dashed #4b5563;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    color: #9ca3af;
    transition: background-color 0.3s, border-color 0.3s;
    margin-bottom: 24px;
    cursor: pointer;
}
#drop-zone:hover, #drop-zone.drag-highlight {
    background-color: #374151;
    border-color: #6366f1;
}
#drop-zone svg {
    margin: 0 auto;
    height: 3rem;
    width: 3rem;
    color: #6b7280;
}
#drop-zone p {
    margin-top: 8px;
    font-size: 0.875em;
}
#drop-zone p .font-semibold {
    font-weight: 600;
    color: #818cf8;
}

/* File List (Left Panel) */
#file-list-container {
    flex-grow: 1;
    overflow-y: auto;
}
.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.file-list-header h2 {
    font-size: 1.125em;
    font-weight: 600;
    margin-bottom: 0;
    border: none;
    padding: 0;
    color: #e5e7eb;
}
#add-file-btn {
    background-color: #374151;
    font-size: 0.875em;
    padding: 6px 12px;
}
#add-file-btn:hover {
    background-color: #4b5563;
}
#file-list {
    list-style-type: none;
    padding: 0;
}
#file-list .file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: #374151;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
}
#file-list .file-item:active {
    cursor: grabbing;
}
.sortable-ghost {
    opacity: 0.4;
    background: #444;
}
.drag-handle {
    color: #9ca3af;
    cursor: move;
    opacity: 0.5;
    transition: opacity 0.2s ease-in-out;
    flex-shrink: 0;
}
.file-item:hover .drag-handle {
    opacity: 1;
}
.drag-handle svg {
    width: 20px;
    height: 20px;
    display: block;
}
.file-name-input {
    flex-grow: 1;
    background-color: transparent;
    color: #e5e7eb;
    border: none;
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.9em;
    font-weight: 500;
    transition: background-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    outline: none;
}
.file-name-input:focus {
    background-color: #4b5563;
    box-shadow: 0 0 0 1px #6366f1;
}
.remove-file-btn {
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    margin-left: auto;
    padding: 4px;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease-in-out;
    flex-shrink: 0;
}
.remove-file-btn:hover {
    color: #ef4444;
}
.remove-file-btn svg {
    width: 20px;
    height: 20px;
}

/* Preview Panel (Right) */
.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.preview-header h2 {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}
#output-preview-container {
    flex-grow: 1;
    background-color: #1f2937;
    border-radius: 8px; /* Match other panel style */
    border: 1px solid #374151;
    padding: 15px;
    overflow: auto;
    margin-top: 15px;
}
#output-preview {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.9em;
    color: #d1d5db;
}
.action-buttons {
    display: flex;
    gap: 10px;
}

/* Button styling */
#copy-button {
    background-color: #4f46e5;
}
#copy-button:not(:disabled):hover {
    background-color: #4338ca;
}
#download-button {
    background-color: #16a34a;
}
#download-button:not(:disabled):hover {
    background-color: #15803d;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 2000;
    pointer-events: none; /* Ignore mouse events */
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-notification.success {
    background-color: #e5e7eb; /* Light gray */
    color: #111827; /* Dark text */
}

.toast-notification.error {
    background-color: #ef4444; /* Red */
    color: #ffffff; /* White text */
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(17, 24, 39, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: #1f2937;
    padding: 24px;
    border-radius: 8px;
    border: 1px solid #374151;
    width: 90%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-content h3 {
    font-size: 1.25em;
    margin-bottom: 0;
    color: #f9fafb;
}

.modal-content label {
    font-size: 0.875em;
    font-weight: 500;
    color: #d1d5db;
    margin-bottom: -8px; /* Reduce gap */
}

.modal-content input,
.modal-content textarea {
    width: 100%;
    background-color: #374151;
    color: #eee;
    border: 1px solid #4b5563;
    border-radius: 4px;
    padding: 10px;
    font-size: 1em;
}

.modal-content textarea {
    resize: vertical;
    min-height: 150px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 8px;
}

#modal-cancel-btn {
    background-color: #4b5563;
}
#modal-cancel-btn:hover {
    background-color: #6b7280;
}
#modal-save-btn {
    background-color: #4f46e5;
}
#modal-save-btn:hover {
    background-color: #4338ca;
}


/* Responsive */
@media (max-width: 900px) {
    main.container {
        flex-direction: column;
        height: auto;
    }
    .file-panel, .preview-panel {
        width: 100%;
        height: 50vh;
    }
}