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

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
    background: #808080;
    min-height: 100vh;
    padding: 20px;
    color: #ffffff;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: #1a1a1a;
    border: 3px solid #F94327;
    overflow: hidden;
}

header {
    background: #808080;
    color: #ffffff;
    padding: 30px;
    text-align: center;
    border-bottom: 3px solid #F94327;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 8px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 200;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.subtitle {
    font-size: 0.95em;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
    letter-spacing: 1.5px;
}

main {
    padding: 25px;
}

h2 {
    margin-bottom: 20px;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 1.4em;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

h3 {
    margin-bottom: 15px;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 1.2em;
    font-weight: 300;
    text-transform: uppercase;
}

h4 {
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 1em;
    font-weight: 300;
    text-transform: uppercase;
}

.mode-selector {
    margin-bottom: 25px;
    background: #808080;
    padding: 20px;
    border: 2px solid #333333;
}

.mode-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.mode-btn {
    padding: 20px;
    border: 2px solid #333333;
    background: #1a1a1a;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mode-btn:hover {
    border-color: #F94327;
    background: #222222;
}

.mode-btn.active {
    border-color: #F94327;
    background: #808080;
}

.mode-btn strong {
    font-size: 1.1em;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
}

.mode-btn span {
    font-size: 0.85em;
    color: #999999;
}

.mode-panel {
    display: none;
    padding: 20px;
    background: #808080;
    border: 2px solid #333333;
    margin-bottom: 20px;
}

.mode-panel.active {
    display: block;
}

.mode-panel > p {
    margin-bottom: 15px;
    color: #cccccc;
    line-height: 1.5;
}

.file-input-group {
    margin-bottom: 18px;
}

.file-input-group label {
    display: block;
    margin-bottom: 8px;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
    font-size: 0.9em;
}

input[type="file"] {
    display: block;
    margin-top: 8px;
    padding: 12px;
    border: 2px solid #333333;
    width: 100%;
    cursor: pointer;
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

input[type="file"]:hover {
    border-color: #F94327;
    background: #222222;
}

input[type="text"] {
    display: block;
    margin-top: 8px;
    padding: 12px;
    border: 2px solid #333333;
    width: 100%;
    font-size: 1em;
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

input[type="text"]:focus {
    outline: none;
    border-color: #F94327;
}

.filename {
    display: block;
    margin-top: 8px;
    color: #cccccc;
    font-size: 0.85em;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.convert-btn, .download-btn {
    width: 100%;
    padding: 16px;
    background: #404040;
    color: #ffffff;
    border: 2px solid #F94327;
    font-size: 1.1em;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 10px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.convert-btn:hover:not(:disabled), .download-btn:hover {
    background: #ffffff;
    color: #F94327;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
}

.convert-btn:disabled {
    background: #333333;
    color: #666666;
    cursor: not-allowed;
}

#progress-section, #download-section {
    padding: 20px;
    background: #808080;
    border: 2px solid #333333;
    margin-top: 20px;
}

.hidden {
    display: none;
}

.progress-bar {
    width: 100%;
    height: 30px;
    background: #333333;
    overflow: hidden;
    margin: 15px 0;
    border: 2px solid #F94327;
}

.progress-fill {
    height: 100%;
    background: #F94327;
    width: 0%;
    transition: width 0.3s;
}

.log-output {
    background: #0a0a0a;
    border: 2px solid #333333;
    padding: 15px;
    max-height: 200px;
    overflow-y: auto;
    font-family: 'Helvetica Neue', Helvetica, Arial, monospace;
    font-weight: 300;
    font-size: 0.85em;
    margin-top: 15px;
    color: #00ff00;
}

.log-output div {
    padding: 2px 0;
}

.instruction {
    margin-top: 15px;
    color: #cccccc;
    font-size: 0.9em;
    line-height: 1.5;
}

footer {
    padding: 20px;
    background: #808080;
    border-top: 2px solid #F94327;
}

details {
    cursor: pointer;
}

summary {
    font-weight: 400;
    color: #ffffff;
    padding: 12px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase;
    border: 2px solid #333333;
}

summary:hover {
    background: #1a1a1a;
    border-color: #F94327;
}

.info-box {
    padding: 15px;
    margin-top: 10px;
    background: #1a1a1a;
    border: 2px solid #333333;
}

.info-box ul {
    margin: 10px 0 10px 20px;
}

.info-box li {
    margin: 8px 0;
    color: #cccccc;
}

.info-box code {
    background: #808080;
    padding: 3px 8px;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, monospace;
    font-weight: 300;
    border: 1px solid #333333;
}

/* Waveform Editor Styles */
#waveform-section {
    padding: 25px;
    background: #808080;
    border: 2px solid #F94327;
    margin-top: 20px;
}

.sample-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background: #1a1a1a;
    border: 2px solid #333333;
}

.sample-selector button {
    padding: 10px 20px;
    background: #404040;
    color: #ffffff;
    border: 2px solid #F94327;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
}

.sample-selector button:hover:not(:disabled) {
    background: #ffffff;
}

.sample-selector button:disabled {
    background: #333333;
    color: #666666;
    cursor: not-allowed;
}

.sample-selector span {
    font-weight: 400;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase;
}

.waveform-container {
    position: relative;
    background: #0a0a0a;
    overflow: hidden;
    margin-bottom: 20px;
    border: 3px solid #F94327;
}

#waveform-canvas {
    display: block;
    width: 100%;
    height: 250px;
    cursor: crosshair;
}

#waveform-markers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    pointer-events: all;
    cursor: ew-resize;
}

.marker::before {
    content: attr(data-label);
    position: absolute;
    top: 5px;
    left: 5px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 4px 10px;
    font-size: 0.7em;
    white-space: nowrap;
    pointer-events: none;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    border: 1px solid currentColor;
}

.marker.in-point {
    background: #4ade80;
}

.marker.out-point {
    background: #f87171;
}

.marker.loop-start {
    background: #60a5fa;
}

.marker.loop-end {
    background: #a78bfa;
}

.waveform-controls {
    background: #1a1a1a;
    padding: 20px;
    border: 2px solid #333333;
}

.control-group {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.control-group button {
    padding: 10px 16px;
    background: #404040;
    color: #ffffff;
    border: 2px solid #F94327;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85em;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
}

.control-group button:hover {
    background: #ffffff;
}

.marker-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.marker-value {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: #808080;
    padding: 8px;
    border: 2px solid #333333;
}

.marker-value label {
    font-weight: 400;
    color: #ffffff;
    font-size: 0.85em;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase;
}

.marker-value input[type="number"] {
    padding: 6px;
    border: 2px solid #333333;
    font-size: 0.85em;
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.marker-value input[type="number"]:focus {
    outline: none;
    border-color: #F94327;
}

.time-display {
    font-size: 0.8em;
    color: #cccccc;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.apply-all-btn {
    padding: 8px 14px;
    background: #808080;
    color: #ffffff;
    border: 2px solid #F94327;
    cursor: pointer;
    font-size: 0.8em;
    transition: all 0.2s;
    margin-top: 5px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 400;
    text-transform: uppercase;
}

.apply-all-btn:hover {
    background: #404040;
    color: #ffffff;
}

.apply-all-master-btn {
    width: 100%;
    padding: 15px 20px;
    background: #F94327;
    color: #ffffff;
    border: 3px solid #F94327;
    cursor: pointer;
    font-size: 1em;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.2s;
    margin-bottom: 20px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.apply-all-master-btn:hover {
    background: #d63515;
    border-color: #d63515;
}

.playback-settings {
    background: #808080;
    padding: 18px;
    border: 2px solid #333333;
    margin-bottom: 20px;
}

.playback-settings h4 {
    margin: 0 0 15px 0;
    color: #ffffff;
    font-size: 1em;
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.setting-row:last-child {
    margin-bottom: 0;
}

.setting-row label {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9em;
    color: #cccccc;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.setting-row input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #F94327;
}

.setting-row input[type="number"] {
    width: 100px;
    padding: 8px;
    border: 2px solid #333333;
    font-size: 0.85em;
    background: #1a1a1a;
    color: #ffffff;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
}

.setting-row input[type="number"]:focus {
    outline: none;
    border-color: #F94327;
}

.setting-row input[type="range"] {
    flex: 1;
    min-width: 150px;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: #333333;
    outline: none;
}

.setting-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: #404040;
    border: 2px solid #F94327;
    cursor: pointer;
    transition: all 0.2s;
}

.setting-row input[type="range"]::-webkit-slider-thumb:hover {
    background: #ffffff;
}

.setting-row input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: #404040;
    border: 2px solid #F94327;
    cursor: pointer;
    transition: all 0.2s;
}

.setting-row input[type="range"]::-moz-range-thumb:hover {
    background: #ffffff;
}

.setting-value {
    font-size: 0.85em;
    color: #ffffff;
    min-width: 70px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: bold;
}

.creative-controls {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.creative-btn {
    padding: 6px 12px;
    background: #1a1a1a;
    color: #ffffff;
    border: 2px solid #666666;
    cursor: pointer;
    font-size: 0.75em;
    transition: all 0.2s;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: bold;
}

.creative-btn:hover {
    background: #404040;
    color: #ffffff;
    border-color: #F94327;
}

/* Button click feedback animation */
@keyframes buttonPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
    }
    50% {
        transform: scale(0.95);
        box-shadow: 0 0 0 10px rgba(245, 158, 11, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0);
    }
}

.button-clicked {
    animation: buttonPulse 0.4s ease-out;
}

/* Status toast notification */
.status-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #404040;
    color: #ffffff;
    padding: 15px 25px;
    border: 3px solid #F94327;
    font-size: 0.95em;
    font-weight: bold;
    z-index: 10000;
    animation: slideIn 0.3s ease-out, slideOut 0.3s ease-in 2.7s;
    pointer-events: none;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-transform: uppercase;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

@media (max-width: 600px) {
    .mode-buttons {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.8em;
    }

    .marker-values {
        grid-template-columns: 1fr;
    }

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

    .sample-selector {
        flex-direction: column;
        gap: 10px;
    }

    #waveform-canvas {
        height: 250px;
    }
}