/* --- Variables --- */
:root {
    /* Light Mode (Default) */
    --bg-body: #F9FAFB;
    --bg-card: #FFFFFF;
    --bg-input: #FFFFFF;
    --text-main: #1F2937;
    --text-title: #111827;
    --text-muted: #4B5563;
    --text-sub: #374151;
    --border-color: #E5E7EB;
    --border-color-darker: #D1D5DB;
    --color-primary: #2563EB;
    --color-primary-hover: #1D4ED8;
    --color-danger: #DC2626;
    --color-danger-hover: #B91C1C;
    --color-success: #16A34A;
    --color-success-hover: #15803D;
    --shadow-card: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-input: 0 1px 2px 0 rgb(0 0 0 / 0.05);

    /* Status colors */
    --status-idle-bg: #E5E7EB;
    --status-idle-text: #374151;
    --status-pending-bg: #FEF0C7;
    --status-pending-text: #9A3412;
    --status-success-bg: #D1FAE5;
    --status-success-text: #166534;
    --status-failure-bg: #FEE2E2;
    --status-failure-text: #991B1B;

    /* Code/Pre blocks */
    --bg-code: #F3F4F6;

    /* Table */
    --bg-table-header: #F3F4F6;
    --bg-table-hover: #F3F4F6;

    /* Alchemy specific */
    --alchemy-border-default: #E5E7EB;
}

/* Dark mode - applied via body.dark-mode or html.dark-mode (for FOUC prevention) */
body.dark-mode,
html.dark-mode body {
    /* Dark Mode Overrides */
    --bg-body: #111827; /* Gray 900 */
    --bg-card: #1F2937; /* Gray 800 */
    --bg-input: #374151; /* Gray 700 */
    --text-main: #F3F4F6; /* Gray 100 */
    --text-title: #F9FAFB; /* Gray 50 */
    --text-muted: #9CA3AF; /* Gray 400 */
    --text-sub: #D1D5DB; /* Gray 300 */
    --border-color: #374151; /* Gray 700 */
    --border-color-darker: #4B5563; /* Gray 600 */
    --color-primary: #3B82F6; /* Blue 500 */
    --color-primary-hover: #2563EB; /* Blue 600 */
    /* Danger/Success can often stay the same or slightly lighter */
    --color-danger: #EF4444; /* Red 500 */
    --color-danger-hover: #DC2626; /* Red 600 */
    --color-success: #22C55E; /* Green 500 */
    --color-success-hover: #16A34A; /* Green 600 */

    --shadow-card: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-input: none;

    --status-idle-bg: #374151;
    --status-idle-text: #D1D5DB;
    --status-pending-bg: #78350F; /* Amber 900 */
    --status-pending-text: #FDE68A; /* Amber 200 */
    --status-success-bg: #064E3B; /* Emerald 900 */
    --status-success-text: #A7F3D0; /* Emerald 200 */
    --status-failure-bg: #7F1D1D; /* Red 900 */
    --status-failure-text: #FECACA; /* Red 200 */

    --bg-code: #1a2332;

    --bg-table-header: #374151;
    --bg-table-hover: #374151;

    --alchemy-border-default: #374151;
}

/* --- Base & Typography --- */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    margin: 0;
    background-color: var(--bg-body);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s, color 0.3s;
}

/* --- Main Container --- */
.container {
    width: 100%;
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem; /* Add horizontal padding for smaller screens */
}

/* --- Headers --- */
h1 {
    font-size: 1.875rem; /* text-3xl equivalent */
    color: var(--text-title);
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    color: var(--text-title);
    margin: 0;
    font-weight: 600;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

h3 {
    color: var(--text-main);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

h4 {
    font-size: 1.125rem;
    color: var(--text-sub);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* --- Sections --- */
section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-card);
    border-radius: 1rem; /* Softer, larger radius */
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-color);
}

/* --- Configuration Header & View Switcher (for index.html) --- */
#config-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.config-title-group {
    text-align: center;
    margin-bottom: 1.5rem;
}

.config-title-group .subtitle {
    margin-top: 0;
    color: var(--text-muted);
}

#config-header h1 {
    border: none;
    padding: 0;
    margin-bottom: 0.5rem;
}

.header-controls {
    display: flex;
    justify-content: flex-end;
}

.view-switcher button {
    background-color: var(--bg-card);
    color: var(--text-sub);
    border: 1px solid var(--border-color-darker);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.view-switcher button.active {
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}

.view-switcher button:not(.active):hover {
    background-color: var(--bg-body);
}

/* --- Form Styling --- */
form {
    color: var(--text-sub);
}

fieldset {
    border: 1px solid var(--border-color-darker);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

legend {
    color: var(--text-title);
    font-size: 1.25rem;
    font-weight: 500;
    padding: 0 0.5rem;
}

.param-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.375rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color-darker);
    color: var(--text-title);
    box-sizing: border-box;
    box-shadow: var(--shadow-input);
    transition: border-color 0.2s, box-shadow 0.2s;
    font-size: 1rem; /* Ensure consistent font size */
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

/* --- AI Provider Specific Config Groups --- */
#ollama-config-group,
#gemini-config-group,
#mistral-config-group {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-top: 1rem;
    background-color: var(--bg-body);
}

/* --- Buttons --- */
.task-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

/* --- Shared button utilities (use .btn on buttons) --- */
/* Common usage: <button class="btn btn-primary">Save</button> */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #ffffff;
    font-weight: 700;
    padding: 0.6rem 1rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.18s ease, transform 0.06s ease;
    font-size: 1rem;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Primary blue button (matches existing primary selectors) */
.btn-primary { background-color: var(--color-primary); }
.btn-primary:hover { background-color: var(--color-primary-hover); }

/* Danger/red button */
.btn-danger { background-color: var(--color-danger); }
.btn-danger:hover { background-color: var(--color-danger-hover); }

/* Ghost / outline button for secondary actions */
.btn-ghost {
    background: transparent;
    color: var(--text-sub);
    border: 1px solid var(--border-color-darker);
}
.btn-ghost:hover { background: var(--bg-body); }

/* Small variant */
.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.875rem; }

/* Selection list item used in the inline selection panel */
.selection-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color); /* slightly lighter than pure #eee in dark mode */
}

/* Controls row for map page: allow wrapping on small screens */
.map-controls {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap; /* allow controls to wrap to next line when space is limited */
}
.map-controls > * {
    margin-right: 6px;
}

@media (max-width: 640px) {
    /* On small screens allow controls to form two-per-row where possible */
    .map-controls > * {
        flex: 1 1 48%;
        min-width: 120px;
    }
    .map-controls input#n_songs { flex: 0 1 100px; }
    .selection-panel-inline { width: 100%; }
}


.task-buttons button,
#cancel-task-btn,
#cancel-sync-btn,
#playlistForm button,
#similarity-form button,
#waveform-form button,
#artist-similarity-form button,
#playlist-form button,
#createPlaylistForm button {
    flex-grow: 1;
    color: white;
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
    font-size: 1rem;
    margin-top: 1rem; /* Add space above buttons */
}

#start-analysis-btn,
#start-clustering-btn,
#fetch-playlists-btn,
#start-sync-btn,
#playlistForm button,
#similarity-form button,
#waveform-form button,
#artist-similarity-form button,
#find-artists-btn,
#create-artist-playlist-btn {
    background-color: var(--color-primary);
}

#start-analysis-btn:hover,
#start-clustering-btn:hover,
#fetch-playlists-btn:hover,
#start-sync-btn:hover,
#playlistForm button:hover,
#similarity-form button:hover,
#waveform-form button:hover,
#artist-similarity-form button:hover,
#find-artists-btn:hover,
#create-artist-playlist-btn:hover {
    background-color: var(--color-primary-hover);
}

#createPlaylistForm button,
#playlist-form button[style*="background-color: #16A34A"] {
    background-color: var(--color-success) !important; /* Green */
}
#createPlaylistForm button:hover,
#playlist-form button[style*="background-color: #16A34A"]:hover {
    background-color: var(--color-success-hover) !important;
}


#cancel-task-btn,
#cancel-sync-btn {
    background-color: var(--color-danger);
}
#cancel-task-btn:hover,
#cancel-sync-btn:hover {
    background-color: var(--color-danger-hover);
}

button:disabled,
#cancel-task-btn:disabled,
#cancel-sync-btn:disabled {
    background-color: #93C5FD !important; /* Light blue - maybe needs var too? */
    cursor: not-allowed !important;
    opacity: 0.7 !important; /* Changed from 1 to 0.7 for better visual indication */
}
body.dark-mode button:disabled,
body.dark-mode #cancel-task-btn:disabled,
body.dark-mode #cancel-sync-btn:disabled {
    background-color: #1E3A8A !important; /* Darker blue for disabled in dark mode */
    color: #9CA3AF !important;
}

#cancel-task-btn:disabled,
#cancel-sync-btn:disabled {
    background-color: #FCA5A5 !important; /* Light red */
}
body.dark-mode #cancel-task-btn:disabled,
body.dark-mode #cancel-sync-btn:disabled {
    background-color: #7F1D1D !important; /* Dark red */
}


/* --- Task Status --- */
#task-status-display {
    background-color: var(--bg-code);
    padding: 1rem;
    border-radius: 0.5rem;
}

#task-status-display p {
    margin: 0.5rem 0;
    color: var(--text-muted);
    word-break: break-all;
}

#task-status-display .status-label {
    color: var(--text-main);
    font-weight: 500;
}

#status-status {
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    display: inline-block;
}

.status-idle {
    color: var(--status-idle-text);
    background-color: var(--status-idle-bg);
}
.status-pending {
    color: var(--status-pending-text);
    background-color: var(--status-pending-bg);
}
.status-success {
    color: var(--status-success-text);
    background-color: var(--status-success-bg);
}
.status-failure {
    color: var(--status-failure-text);
    background-color: var(--status-failure-bg);
}

.progress-bar-container {
    width: 100%;
    background-color: var(--border-color);
    border-radius: 9999px;
    height: 0.625rem;
    margin-top: 0.5rem;
    overflow: hidden;
}

#progress-bar {
    background-color: var(--color-primary);
    height: 100%;
    border-radius: 9999px;
    width: 0%;
    transition: width 0.3s ease-in-out;
}

#status-details {
    background-color: var(--bg-code);
    padding: 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    overflow: auto;
    max-height: 15rem;
    color: var(--text-main);
    white-space: pre-wrap;
    margin-top: 0;
    border: 1px solid var(--border-color);
}

/* --- Task Status Card --- */
.task-status-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.25rem;
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.task-type-badge {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-title);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-progress {
    background-color: var(--color-primary);
    color: white;
}

.progress-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.progress-section .progress-bar-container {
    flex-grow: 1;
    margin-top: 0;
}

.progress-percentage {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-title);
    min-width: 3rem;
    text-align: right;
}

/* --- Task Breakdown --- */
.status-breakdown {
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.breakdown-row {
    display: grid;
    grid-template-columns: 1.5rem 1fr 3rem 1fr;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-row:last-child {
    border-bottom: none;
}

.breakdown-icon {
    font-size: 1rem;
    text-align: center;
}

.breakdown-row.completed .breakdown-icon { color: var(--color-success); }
.breakdown-row.in-progress .breakdown-icon { color: var(--color-primary); }
.breakdown-row.queued .breakdown-icon { color: var(--text-muted); }
.breakdown-row.skipped .breakdown-icon { color: var(--text-muted); }
.breakdown-row.failed .breakdown-icon { color: var(--color-danger); }

.breakdown-label {
    font-size: 0.875rem;
    color: var(--text-main);
}

.breakdown-count {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-title);
    text-align: right;
}

.mini-bar {
    height: 0.5rem;
    background-color: var(--border-color);
    border-radius: 9999px;
    overflow: hidden;
}

.mini-bar-fill {
    height: 100%;
    border-radius: 9999px;
    transition: width 0.3s ease-in-out;
}

.breakdown-row.completed .mini-bar-fill { background-color: var(--color-success); }
.breakdown-row.in-progress .mini-bar-fill { background-color: var(--color-primary); }
.breakdown-row.queued .mini-bar-fill { background-color: var(--text-muted); }
.breakdown-row.skipped .mini-bar-fill { background-color: var(--border-color-darker); }
.breakdown-row.failed .mini-bar-fill { background-color: var(--color-danger); }

/* --- Task Meta --- */
.task-meta {
    margin-bottom: 1rem;
}

.task-meta p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
}

.meta-label {
    color: var(--text-muted);
}

.task-id-text {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* --- Log Details Collapsible --- */
.log-details {
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    overflow: hidden;
}

.log-details summary {
    padding: 0.75rem 1rem;
    background-color: var(--bg-body);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-main);
    user-select: none;
}

.log-details summary:hover {
    background-color: var(--bg-table-hover);
}

.log-details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.log-details #status-details {
    border: none;
    border-radius: 0;
    margin: 0;
}

/* --- Playlists Section --- */
#playlists-section {
    display: none;
}

#playlists-container {
    color: var(--text-sub);
}

.playlist-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.playlist-header {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.playlist-name {
    color: var(--text-title);
    font-weight: 600;
}

.playlist-song-count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.show-songs-btn {
    margin-left: auto;
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
}

.song-list {
    margin-top: 0.75rem;
    list-style-type: decimal;
    padding-left: 1.5rem;
    color: var(--text-muted);
}

/* --- App Version in Sidebar --- */
.app-version {
    /* This will now appear directly after the navigation links */
    padding: 2rem 1rem 1rem 1rem; /* Extra top padding to space it from the last link */
    font-size: 0.8rem; /* Smaller font */
    color: #6B7280; /* Grey text color */
    text-align: center;
    /* Ensure long text wraps and doesn't get truncated */
    overflow-wrap: break-word;
}

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

/* --- Styles for Chat & Similarity Pages --- */

/* General page header for chat/similarity */
.page-header {
    text-align: center;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-muted);
    margin-top: 0;
}

/* Chat page specific */
#responseArea {
    background-color: var(--bg-code);
    padding: 1.5rem;
    border-radius: 0.5rem;
    min-height: 100px;
    color: var(--text-sub);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin-top: 1rem;
}

#responseArea .italic {
    color: var(--text-muted);
    font-style: italic;
}

#responseArea .text-red-600 {
    color: var(--color-danger);
    font-weight: 600;
}

#createPlaylistSection {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-body);
}

/* Similarity page specific */
.autocomplete-container {
    position: relative;
}

.autocomplete-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color-darker);
    border-top: none;
    border-radius: 0 0 0.5rem 0.5rem;
    max-height: 200px;
    overflow-y: auto;
    z-index: 10;
    box-shadow: var(--shadow-card);
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
}

.autocomplete-item:hover, .autocomplete-item.active {
    background-color: var(--bg-code);
}

.autocomplete-item .title {
    font-weight: 600;
    color: var(--text-title);
}

.autocomplete-item .artist {
    font-size: 0.875rem;
    color: var(--text-muted);
}

#results-table-wrapper {
    background-color: var(--bg-body);
    padding: 0; /* Remove padding to let table be full width */
    border-radius: 0.5rem;
    overflow-x: auto; /* For responsive tables */
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap; /* Prevent text wrapping */
    font-size: 0.9rem; /* Slightly smaller font */
}

th {
    background-color: var(--bg-table-header);
    font-weight: 600;
    color: var(--text-sub);
    font-size: 0.875rem;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background-color: var(--bg-table-hover);
}

/* Artist Similarity Table - Responsive adjustments */
.results-table th,
.results-table td {
    font-size: 0.875rem; /* Reduce font size for results table */
}

.results-table td:first-child {
    white-space: nowrap; /* Keep artist names on one line */
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

/* Mobile responsive table for artist similarity */
@media (max-width: 768px) {
    .results-table th,
    .results-table td {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .results-table td:first-child {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .results-table .btn-sm {
        padding: 0.25rem 0.4rem;
        font-size: 0.75rem;
        white-space: normal;
        line-height: 1.2;
    }

    .results-table th:nth-child(2),
    .results-table td:nth-child(2) {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    /* Extra small screens - stack layout */
    .results-table {
        font-size: 0.75rem;
    }

    .results-table th,
    .results-table td {
        padding: 0.4rem 0.3rem;
        font-size: 0.75rem;
    }

    .results-table td:first-child {
        max-width: 90px;
        font-size: 0.8rem;
        font-weight: 500;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .results-table .btn-sm {
        padding: 0.2rem 0.3rem;
        font-size: 0.65rem;
        min-width: auto;
    }

    .results-table th:nth-child(3),
    .results-table th:nth-child(4) {
        font-size: 0.7rem;
    }
}

#playlist-creator {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-body);
}

/* Status messages */
#status, #playlist-status, #jellyfinResponseArea {
    margin-top: 1rem;
    padding: 0.5rem;
    font-size: 0.875rem;
    text-align: center;
    border-radius: 0.375rem;
}

#jellyfinResponseArea.text-green-600, .status-success {
    color: var(--status-success-text);
    background-color: var(--status-success-bg);
}

#jellyfinResponseArea.text-red-600, .status-error {
    color: var(--status-failure-text);
    background-color: var(--status-failure-bg);
}


/* --- Responsive Design --- */
@media (max-width: 768px) {
    .main-content {
        padding-top: 5rem; /* More space for fixed menu button */
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 0.5rem;
    }

    section, fieldset {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    #config-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .config-title-group {
        text-align: center;
    }

    .header-controls {
        display: flex;
        justify-content: center;
    }

    .view-switcher {
        display: inline-flex;
    }

    .view-switcher button {
        flex: 1;
    }
}

/* --- Alchemy Page Styles (centralized and corrected) --- */

.alchemy-controls.task-buttons {
    flex-direction: column-reverse; /* Main action button on top */
}

/* Make both buttons in this container primary buttons */
.alchemy-controls.task-buttons button {
    background-color: var(--color-primary);
    color: white;
    border: none;
}
.alchemy-controls.task-buttons button:hover {
    background-color: var(--color-primary-hover);
}

/* Card base styles */
.alchemy-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-input);
    display: flex;
    flex-direction: column;
    gap: 1rem; /* Increased gap for better spacing */
    width: 100%;
    transition: border-color 0.3s ease-in-out;
    border-left-width: 4px;
    border-left-color: var(--alchemy-border-default); /* Default border */
    box-sizing: border-box; /* FIX: Prevents padding from causing overflow */
}

.alchemy-card.op-add-active {
    border-left-color: var(--color-success); /* Green for ADD */
}

.alchemy-card.op-subtract-active {
    border-left-color: var(--color-danger); /* Red for SUBTRACT */
}

.alchemy-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start; /* Align top for multi-line content */
    margin-bottom: 0.5rem;
    gap: 1rem;
}

/* Left side grouping: operation buttons + song label */
.alchemy-card-header .left-group {
    display: flex;
    flex-direction: column; /* Mobile-first: stack items */
    align-items: flex-start;
    gap: 0.75rem;
    flex-grow: 1;
    min-width: 0; /* Fix for flex text overflow */
}

.song-details-wrapper {
    display: flex;
    flex-direction: column;
}

.song-details-wrapper .song-number {
    font-weight: 600;
    color: var(--text-title);
    font-size: 1.05rem;
    line-height: 1.2;
}

.song-details-wrapper .selected-song-name {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
    word-break: break-word; /* Ensure long titles wrap */
    white-space: normal;
}

.op-buttons {
    display: inline-flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.op-btn {
    font-size: 0.875rem;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color-darker);
    background-color: var(--bg-card);
    cursor: pointer;
    font-weight: 600;
    border-radius: 0.375rem;
    white-space: nowrap;
    color: var(--text-main);
}

.op-btn.op-add.active {
    background-color: var(--color-success); /* Green */
    border-color: var(--color-success-hover);
    color: white;
}
.op-btn.op-sub.active {
    background-color: var(--color-danger); /* Red */
    border-color: var(--color-danger-hover);
    color: white;
}

.card-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0.25rem;
    border-radius: 3px;
    flex-shrink: 0; /* Prevent close button from shrinking */
}
.card-close:hover {
    background: var(--bg-code);
    color: var(--text-title);
}

/* Constrain alchemy plot so it doesn't grow the page height excessively */
#alchemy-plot {
    width: 100% !important;
    max-height: 480px;
    height: 360px;
    display: block;
}

.alchemy-card .field-row {
    display: flex;
    flex-direction: column;
}
/* Small helpers for alchemy form rows */
.param-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.param-row input[type="range"] {
    flex-grow: 1;
}
.param-row input[type="number"] {
    width: 6rem;
}
.param-help {
    font-size: 0.8rem;
    color: var(--text-muted);
    width: 100%;
    margin-top: -0.25rem;
}

/* Responsive adjustment for Desktop view */
@media (min-width: 500px) {
    .alchemy-card-header .left-group {
        flex-direction: row; /* Side-by-side on wider screens */
        align-items: center;
        gap: 1rem;
    }
}

/* --- Tooltips / Info Icons --- */
.info-tooltip {
    position: relative;
    display: inline-block;
    margin-left: 0.35rem;
    cursor: help;
    vertical-align: middle;
}

.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: #3B82F6; /* Keep standard blue for icon */
    color: white;
    font-size: 13px;
    font-weight: 600;
    font-family: Georgia, serif;
    line-height: 1;
    user-select: none;
    transition: background-color 0.2s;
}

.info-icon::before {
    content: "i";
    font-style: italic;
    display: block;
    padding-bottom: 1px; /* Fine-tune vertical centering */
}

.info-tooltip:hover .info-icon,
.info-tooltip:focus .info-icon {
    background-color: var(--color-primary);
}

/* Tooltip text */
.tooltip-text {
    visibility: hidden;
    opacity: 0;
    width: 280px;
    background-color: #1F2937; /* Always dark for tooltips */
    color: #F9FAFB;
    text-align: left;
    border-radius: 6px;
    padding: 0.75rem;
    position: absolute;
    z-index: 1000;
    bottom: 125%;
    left: 50%;
    margin-left: -140px;
    font-size: 0.875rem;
    line-height: 1.4;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.2), 0 2px 4px -2px rgb(0 0 0 / 0.2);
    transition: opacity 0.3s;
    pointer-events: none;
}

/* Arrow */
.tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #1F2937 transparent transparent transparent;
}

/* Show tooltip on hover/focus */
.info-tooltip:hover .tooltip-text,
.info-tooltip:focus .tooltip-text,
.info-tooltip:active .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Mobile: show tooltip below on smaller screens */
@media (max-width: 640px) {
    .tooltip-text {
        width: 240px;
        margin-left: -120px;
        bottom: auto;
        top: 125%;
    }

    .tooltip-text::after {
        top: auto;
        bottom: 100%;
        border-color: transparent transparent #1F2937 transparent;
    }
}

/* Label with tooltip helper */
.label-with-tooltip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* --- Chat page summary styles (for JavaScript-assigned colors) --- */
.summary-header { background-color: var(--bg-code); }
.summary-content { background-color: var(--bg-body); }
.processing-summary { background-color: var(--status-pending-bg); }
.attempt-success { background-color: var(--status-success-bg); }
.attempt-error { background-color: var(--status-failure-bg); }
.attempt-content { background-color: var(--bg-body); }

/* --- Message box styles (for dynamically created message boxes) --- */
.message-box {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--bg-card);
    color: var(--text-main);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-color);
    max-width: 400px;
    z-index: 1000;
}
.message-box h3 {
    color: var(--text-title);
    margin: 0 0 10px 0;
}
.message-box .close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}
.message-box .close-btn:hover {
    color: var(--text-title);
}