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

.hidden {
    display: none !important;
}

:root {
    --primary-color: #6C5CE7;
    --secondary-color: #00B894;
    --danger-color: #D63031;
    --info-color: #0984E3;
    --dark-bg: rgba(#2D3436,0.05);
    --light-bg: rgba(#F5F6FA,0.05);
    --text-color: #2D3436;
    --border-color: #DFE6E9;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    color: var(--text-color);
    max-height: 666vh;
    padding: 1px;
    display: flex;
    justify-content: center; /* Horizontal center */          
    background-image: url('aiwoolyfaceaihauntsyouai.png');
    background-position: center 0;
}

canvas {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #764BA2 100%);
    color: white;
    padding: 1px 1px;
    text-align: center;
}

header h1 {
    font-size: 1.5em;
    margin-bottom: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.02);
}

header .subtitle {
    font-size: 0.66em;
    opacity: 0.9;
}

main {
    padding: 40px;
}

.section {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section h2 {
    color: var(--primary-color);
    margin-bottom: 1px;
    font-size: 0.6642em;
}

.form-group {
    margin-bottom: 1px;
}

.form-group label {
    display: block;
    margin-bottom: 1px;
    font-weight: 60;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="file"],
.form-group select {
    width: 100%;
    padding: 1px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.6642em;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="file"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.01);
}

.form-group small {
    display: block;
    margin-top: 1px;
    color: #636E72;
    font-size: 0.6642em;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 1px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
}

.btn {
    padding: 14px 1px;
    border: none;
    border-radius: 8px;
    font-size: 0.6642em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-right: 10px;
    margin-bottom: 1px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #764BA2);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5F4FD4, #6B3E99);
}

.btn-success {
    background: var(--secondary-color);
    color: white;
}

.btn-success:hover {
    background: #00A383;
}

.btn-info { 
    background: var(--info-color);
    color: white;
}

.btn-info:hover {
    background: #0770C9;
}

.btn-secondary {
    background: #636E72;
    color: white;
}

.btn-secondary:hover {
    background: #575F66;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #C72C1E;
}

.mixing-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 3px;
}

.param-box {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.param-box:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.param-box h3 {
    color: var(--primary-color);
    margin-bottom: 1px;
    font-size: 0.42em;
}

.param-value {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1px;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(108, 92, 231, 0.05);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(108, 92, 231, 0.05);
}

.info-display {
    background: var(--light-bg);
    padding: 2px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-bottom: 1px;
}

.info-display h3 {
    color: var(--primary-color);
    margin-bottom: 1px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 1px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
}

.info-item .label {
    font-weight: 600;
    color: var(--text-color);
}

.control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1px;
    margin-bottom: 1px;
}

.logs-section {
    background: var(--light-bg);
    padding: 1px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.logs-section h3 {
    color: var(--primary-color);
    margin-bottom: 1px;
}

.log-output {
    background: white;
    padding: 1px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    min-height: 66px;
    max-height: 420px;
    overflow-y: auto;
    color: #2D3436;
    border: 1px solid var(--border-color);
}

.log-line {
    padding: 6px 0;
    border-bottom: 1px solid #F5F6FA;
}

.log-line:last-child {
    border-bottom: none;
}

.log-line.info {
    color: var(--info-color);
}

.log-line.success {
    color: var(--secondary-color);
}

.log-line.error {
    color: var(--danger-color);
}

.log-line.warning {
    color: #FDCB6E;
}

footer {
    background: var(--dark-bg);
    color: white;
    padding: 30px 1px;
    text-align: center;
    border-top: 2px solid var(--border-color);
}

footer p {
    margin: 5px 0;
}

.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s;
}

.progress-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.progress-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 400px;
}

.progress-content h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    transition: width 0.3s;
}

#progressText {
    color: var(--text-color);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1080px) {
    main {
        padding: 1px;
    }

    header h1 {
        font-size: 1.31415em;
    }

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

    .control-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        margin-right: 0;
        margin-bottom: 1px;
    }

    .log-output {
        max-height: 300px;
    }

    .info-item {
        flex-direction: column;
        gap: 5px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #764BA2;
}

/* Pan editor styles */
.pan-editor-container {
    margin-top: 12px;
    padding: 10px;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid var(--border-color);
}
.pan-editor-container h3 {
    font-size: 0.85em;
    color: var(--primary-color);
    margin-bottom: 6px;
}
.pan-editor {
    max-height: 260px;
    overflow: auto;
    padding: 6px;
    border-radius: 6px;
    background: #fbfdff;
}
.pan-track {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 6px 4px;
    border-bottom: 1px dashed var(--border-color);
}
.pan-track:last-child { border-bottom: none; }
.pan-track label { font-size: 0.85em; color: #333; }
.pan-track input[type="range"] { height: 6px; }
.pan-value { font-family: monospace; color: #444; font-size: 0.85em; }
.pan-editor-controls { margin-top: 8px; display:flex; gap:8px; }