:root {
    --bg-color: #000000;
    --text-color: #ECE0DB;
    --text-muted: #A38D84;
    --accent-primary: #FF007F;
    --accent-wine: #840444;
    --accent-orange: #FF7037;
    --accent-red: #FF3131;
    --accent-base: #DFCAC1;
    --container-fill: #151515;
    --border-base: #5C524C;
    --border-contrast: #ECE0DB;
}

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

body {
    font-family: "Helvetica Neue", Helvetica, system-ui, -apple-system, Arial, sans-serif !important;
    font-weight: 400 !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
}

p, li {
    font-weight: 400 !important;
}

strong, b, h1, h2, h3, h4, h5, h6, th {
    font-weight: 500 !important;
}

.container {
    max-width: 1400px;
    margin: 0;
    padding: 2rem;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
}

.logo {
    font-size: 3rem;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
    color: var(--accent-orange);
}

.logo .highlight {
    color: var(--text-color);
}

.subtitle {
    color: var(--text-color);
    font-size: 1.1rem;
}

/* Scannable Containers */
.technical-panel {
    background: var(--container-fill);
    border: 1px solid var(--border-base);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border-base);
    border-radius: 8px;
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-color);
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent-orange);
    background: var(--container-fill);
}

.dropzone-icon {
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.dropzone h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.dropzone p {
    color: var(--text-muted);
}

/* Workspace Grid */
.workspace {
    margin-top: 2rem;
}

.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .panel-grid {
        grid-template-columns: 1fr;
    }
}

.column-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-base);
    padding-bottom: 1rem;
}

.filename-badge {
    background: var(--bg-color);
    border: 1px solid var(--border-base);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--accent-base);
}

.btn-small {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    height: auto;
}

/* Audio Player Customization */
.audio-player {
    width: 100%;
}

audio {
    width: 100%;
    height: 40px;
    border-radius: 4px;
    outline: none;
    border: 1px solid var(--border-base);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-base);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    background: var(--bg-color);
    color: var(--text-color);
}

.btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.primary-btn {
    width: 100%;
}

.magic-btn {
    background: var(--accent-wine);
    color: var(--text-color);
    border-color: var(--accent-primary);
    width: 100%;
    padding: 1rem;
}

.magic-btn:hover {
    background: var(--accent-primary);
    color: var(--text-color);
}

.download-btn {
    background: var(--accent-orange);
    color: var(--bg-color);
    border-color: var(--accent-orange);
}

.download-btn:hover {
    background: var(--text-color);
    color: var(--bg-color);
    border-color: var(--text-color);
}

.actions {
    display: flex;
    gap: 1rem;
}

.split-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

/* Process Action Container */
.process-action-container {
    text-align: center;
    padding: 2rem 0;
    border: 1px solid var(--border-base);
    background: var(--bg-color);
    border-radius: 4px;
}

.info-text {
    color: var(--accent-base);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    padding: 0 1rem;
}

/* Audit Pre-formatted Text Codeboxes */
.audit-container {
    background: var(--container-fill);
    border: 1px solid var(--border-contrast);
    border-radius: 4px;
    overflow: hidden;
}

.audit-header {
    background: var(--bg-color);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-contrast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.audit-header h4 {
    color: var(--accent-orange);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.audit-content {
    font-family: monospace;
    font-size: 0.85rem;
    padding: 1rem;
    overflow-x: auto;
    color: var(--text-color);
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
}

/* Syntax Highlighting overrides for audit text */
.audit-content .syntax-accent {
    color: var(--accent-primary);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-base);
    border-left-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Layout Utilities for scannability */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

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

th {
    color: var(--accent-base);
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* NEW: Batch Layout & Stem Items */
.danger-btn {
    background: transparent;
    color: var(--accent-red);
    border-color: var(--accent-red);
}

.danger-btn:hover {
    background: var(--accent-red);
    color: var(--text-color);
}

.stem-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stem-item {
    background: var(--bg-color);
    border: 1px solid var(--border-base);
    border-radius: 6px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stem-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.menu {
    position: relative;
    display: inline-block;
}

.ellipsis-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0 0.5rem;
}

.menu-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background-color: var(--container-fill);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.5);
    z-index: 10;
    border: 1px solid var(--border-base);
    border-radius: 4px;
    overflow: hidden;
}

.menu-content.show {
    display: block;
}

.menu-content a, .menu-content button {
    color: var(--text-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    border-bottom: 1px solid var(--border-base);
    white-space: nowrap;
}

.menu-content a:hover, .menu-content button:hover {
    background-color: var(--border-base);
}

.menu-content a:last-child, .menu-content button:last-child {
    border-bottom: none;
}

/* Collapsible HTML Audit */
details.audit-collapse {
    border: 1px solid var(--border-contrast);
    border-radius: 4px;
    background: var(--container-fill);
    overflow: hidden;
}

details.audit-collapse summary {
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--accent-orange);
    user-select: none;
    background: var(--bg-color);
    border-bottom: 1px solid transparent;
}

details.audit-collapse[open] summary {
    border-bottom: 1px solid var(--border-contrast);
}

details.audit-collapse .audit-content {
    border: none;
    margin: 0;
}

/* Mixdown Panel Styles */
.mixdown-section {
    margin-top: 2rem;
    width: 100%;
}

.mixdown-panel {
    border-color: var(--accent-primary);
    background: var(--bg-color);
}

.mixdown-controls {
    display: flex;
    justify-content: center;
    padding: 1rem 0;
}

#mixdown-results {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-base);
}

.mix-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mix-item h4 {
    color: var(--accent-orange);
}

/* Login Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}