/* Spectral Brush Editor Styles */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #1e1e1e;
    color: #d4d4d4;
    overflow: hidden;
    height: 100vh;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
header {
    background: #252526;
    padding: 12px 20px;
    border-bottom: 1px solid #3e3e42;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 18px;
    font-weight: 600;
    color: #cccccc;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.file-info {
    font-size: 13px;
    color: #858585;
}

/* Main content area */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Canvas container (80% width) */
.canvas-container {
    flex: 1;
    position: relative;
    background: #1e1e1e;
    border-right: 1px solid #3e3e42;
}

#spectrogramCanvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
}

.canvas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(30, 30, 30, 0.9);
    pointer-events: none;
}

.canvas-overlay.hidden {
    display: none;
}

.canvas-overlay p {
    font-size: 16px;
    margin: 8px 0;
}

.canvas-overlay .hint {
    font-size: 13px;
    color: #858585;
}

/* Toolbar (20% width) */
.toolbar {
    width: 250px;
    background: #252526;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
}

.toolbar h3 {
    font-size: 14px;
    font-weight: 600;
    color: #cccccc;
    margin-bottom: 5px;
}

.btn-toolbar {
    padding: 8px 12px;
    background: #0e639c;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}

.btn-toolbar:hover {
    background: #1177bb;
}

.btn-toolbar:disabled {
    background: #3e3e42;
    color: #858585;
    cursor: not-allowed;
}

.btn-toolbar.btn-danger {
    background: #a82d2d;
}

.btn-toolbar.btn-danger:hover:not(:disabled) {
    background: #c94242;
}

.curve-list {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.curve-item {
    padding: 8px 10px;
    background: #2d2d30;
    border-radius: 3px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s;
    border: 1px solid transparent;
}

.curve-item:hover {
    background: #3e3e42;
}

.curve-item.selected {
    background: #094771;
    border-color: #0e639c;
}

/* Control panel (bottom) */
.control-panel {
    background: #252526;
    border-top: 1px solid #3e3e42;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.control-section {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-section label {
    font-size: 13px;
    color: #cccccc;
    white-space: nowrap;
}

.select-input {
    padding: 4px 8px;
    background: #3c3c3c;
    color: #cccccc;
    border: 1px solid #3e3e42;
    border-radius: 3px;
    font-size: 13px;
    cursor: pointer;
}

.slider {
    width: 150px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: #3e3e42;
    border-radius: 2px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: #0e639c;
    border-radius: 50%;
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: #0e639c;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.number-input {
    width: 60px;
    padding: 4px 6px;
    background: #3c3c3c;
    color: #cccccc;
    border: 1px solid #3e3e42;
    border-radius: 3px;
    font-size: 13px;
}

.playback-controls {
    gap: 8px;
}

.btn-playback {
    padding: 6px 12px;
    background: #0e639c;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}

.btn-playback:hover:not(:disabled) {
    background: #1177bb;
}

.btn-playback:disabled {
    background: #3e3e42;
    color: #858585;
    cursor: not-allowed;
}

.btn-playback kbd {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 11px;
}

/* Action bar (bottom) */
.action-bar {
    background: #2d2d30;
    border-top: 1px solid #3e3e42;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.action-group {
    display: flex;
    gap: 8px;
}

.btn-action {
    padding: 6px 12px;
    background: #3c3c3c;
    color: #cccccc;
    border: 1px solid #3e3e42;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s, border-color 0.2s;
}

.btn-action:hover:not(:disabled) {
    background: #505050;
    border-color: #0e639c;
}

.btn-action:disabled {
    color: #858585;
    cursor: not-allowed;
}

.btn-primary {
    padding: 6px 16px;
    background: #0e639c;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #1177bb;
}

/* Icon styling */
.icon {
    font-size: 14px;
    line-height: 1;
}

/* Modal */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #252526;
    padding: 30px;
    border: 1px solid #3e3e42;
    border-radius: 5px;
    width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #858585;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: #cccccc;
}

.modal-content h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #cccccc;
}

.modal-content h3 {
    font-size: 16px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #cccccc;
}

.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.shortcuts-table th,
.shortcuts-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid #3e3e42;
}

.shortcuts-table th {
    background: #2d2d30;
    font-weight: 600;
    color: #cccccc;
}

.shortcuts-table td {
    color: #d4d4d4;
}

.shortcuts-table kbd {
    background: #3c3c3c;
    border: 1px solid #3e3e42;
    padding: 3px 8px;
    border-radius: 3px;
    font-family: monospace;
    font-size: 12px;
}

.modal-content ul {
    list-style: none;
    padding-left: 0;
}

.modal-content li {
    padding: 5px 0;
    color: #d4d4d4;
}

.modal-content li strong {
    color: #cccccc;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #1e1e1e;
}

::-webkit-scrollbar-thumb {
    background: #3e3e42;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4e4e52;
}