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

body {
    font-family: 'Courier New', 'Lucida Console', monospace;
    background: #000000;
    color: #8fbc8f;
    min-height: 100vh;
    padding: 12px;
    text-transform: uppercase;
}

:root {
    --sidebar-width: 350px;
    --page-padding: 12px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    gap: 12px;
    height: calc(100vh - 24px);
    position: relative;
    /* For toggle positioning */
}

/* Allow collapsing at any size */
.container.sidebar-collapsed {
    grid-template-columns: 1fr;
}

.container.sidebar-collapsed>.controls {
    display: none !important;
}

.container.sidebar-collapsed .preview-container {
    grid-column: 1 / -1;
}

.sidebar-toggle {
    display: none;
    /* Hidden on desktop */
    position: absolute;
    z-index: 100;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        display: block;
        position: relative;
    }

    .controls {
        position: fixed;
        left: var(--page-padding);
        top: var(--page-padding);
        width: var(--sidebar-width);
        height: calc(100% - (var(--page-padding) * 2));
        z-index: 100;
        transform: translateX(0);
        border-right: 2px solid #8fbc8f;
    }

    .preview-container {
        height: calc(100vh - 24px);
        margin-left: calc(var(--sidebar-width) + var(--page-padding));
        width: calc(100% - var(--sidebar-width) - (var(--page-padding) * 2));
    }

    .container.sidebar-collapsed .controls {
        transform: translateX(-100%);
    }

    .container.sidebar-collapsed .preview-container {
        margin-left: var(--page-padding);
        width: calc(100% - (var(--page-padding) * 2));
    }

    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        position: fixed;
        left: calc(var(--sidebar-width) + var(--page-padding));
        top: 50%;
        transform: translateY(-50%);
        z-index: 101;
        width: 25px;
        height: 50px;
        background: #8fbc8f;
        color: #000000;
        border: 2px solid #8fbc8f;
        border-radius: 0;
        border-left: none;
        cursor: pointer;
        font-size: 18px;
        font-weight: bold;
    }

    .container.sidebar-collapsed .sidebar-toggle {
        left: var(--page-padding);
    }
}

.panel {
    background: #000000;
    border: 2px solid #8fbc8f;
    padding: 24px;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow-y: auto;
    scrollbar-width: none;
    /* Firefox: hide scrollbar */
    -ms-overflow-style: none;
    /* IE/Edge legacy */
    scrollbar-gutter: stable;
    /* Prevent layout shift when scrollability changes */
    min-width: 0;
}

/* Scrollbar - WebKit */
.controls::-webkit-scrollbar {
    width: 0;
    /* Hide scrollbar in Chrome/Safari/Edge */
    height: 0;
}

.controls::-webkit-scrollbar-track {
    background: transparent;
}

.controls::-webkit-scrollbar-thumb {
    background: transparent;
    border: none;
}

.controls::-webkit-scrollbar-thumb:hover {
    background: transparent;
}

.upload-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upload-section.drawer:not(.open) {
    gap: 0;
    padding-bottom: 0;
}

/* Drawer styling */
.drawer {
    border: 1px solid #8fbc8f;
    /* Always present, just controls visibility of content */
}

.drawer:not(.open) {
    padding-bottom: 0;
}

.drawer-header {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 6px;
    user-select: none;
    border-bottom: 1px solid #8fbc8f;
    line-height: 1.2;
}

.drawer-header .section-title {
    margin-bottom: 0;
}

.drawer-caret {
    color: #8fbc8f;
    font-size: 14px;
    width: 14px;
    display: inline-block;
    transition: transform 0.2s ease;
}

.drawer .drawer-content {
    max-height: 0;
    min-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
    width: 100%;
    flex-shrink: 0;
    box-sizing: border-box;
    padding: 12px 12px 0px 12px;
    /* Reduced bottom padding when closed */
}

.drawer.open .drawer-content {
    max-height: 1000px;
    opacity: 1;
    padding: 12px;
    /* Full padding when open */
}

/* Canvas width stays calculated for padding */
.curve-canvas {
    width: 100%;
    height: 120px;
    background: #000000;
    cursor: crosshair;
    border: 1px solid #8fbc8f;
    display: block;
}

.upload-box {
    position: relative;
    border: 2px solid #8fbc8f;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #000000;
}

.upload-box:hover {
    border-color: #7aa87a;
    background: #0a0a0a;
}

.upload-box.dragover {
    border-color: #ff6b6b;
    background: #0a0000;
}

.upload-box.disabled {
    border-color: #444;
    background: #111;
    color: #666;
    cursor: not-allowed;
}

.upload-box.disabled .upload-text,
.upload-box.disabled .upload-hint {
    color: #666;
}

.upload-box input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.upload-text {
    color: #8fbc8f;
    font-size: 14px;
    margin-bottom: 8px;
}

.upload-hint {
    color: #7aa87a;
    font-size: 12px;
}

.preview-thumb {
    max-width: 60px;
    max-height: 60px;
    margin-top: 8px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.control-group.drawer:not(.open) {
    gap: 0;
    padding-bottom: 0;
}

.control-label {
    color: #8fbc8f;
    font-size: 14px;
    font-weight: bold;
}

.slider-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.slider-container.inline {
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

.slider {
    width: 100%;
    height: 8px;
    background: #000000;
    border: 1px solid #8fbc8f;
    outline: none;
    appearance: none;
    cursor: pointer;
}

.slider:focus {
    outline: none;
}

.slider:hover {
    background: #0a0a0a;
}

.slider::-webkit-slider-runnable-track {
    height: 8px;
    background: #000000;
    border: 1px solid #8fbc8f;
}

.slider::-moz-range-track {
    height: 8px;
    background: #000000;
    border: 1px solid #8fbc8f;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: #8fbc8f;
    cursor: pointer;
    border: 1px solid #000000;
    margin-top: -5px;
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #8fbc8f;
    cursor: pointer;
    border: 1px solid #000000;
}

.slider-value {
    color: #7aa87a;
    font-size: 12px;
    text-align: center;
    font-weight: bold;
    /* Add this */
}

.curves-container {
    background: #000000;
    border: 1px solid #8fbc8f;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}


.preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.loupe-overlay {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.preview-canvas {
    max-width: 100%;
    max-height: 100%;
    border: 2px solid #8fbc8f;
    background: #000000;
}

.preview-canvas.cursor-hidden {
    cursor: none;
}

.no-preview {
    color: #7aa87a;
    font-size: 18px;
    text-align: center;
}

.section-title {
    color: #8fbc8f;
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 8px;
}

.reset-btn {
    background: #000000;
    border: 1px solid #ff6b6b;
    color: #ff6b6b;
    padding: 8px 16px;
    font-size: 12px;
    cursor: pointer;
    margin-top: 10px;
    display: inline-block;
}

.reset-btn:hover {
    background: #0a0000;
}

.action-btn {
    background: #000000;
    border: 1px solid #8fbc8f;
    color: #8fbc8f;
    padding: 10px 16px;
    font-size: 12px;
    cursor: pointer;
}

.action-btn:hover {
    background: #0a0a0a;
}

/* Brutalist checkboxes */
input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 1px solid #8fbc8f;
    background: #000000;
    cursor: pointer;
    vertical-align: middle;
}

input[type="checkbox"]:hover {
    background: #0a0a0a;
}

input[type="checkbox"]:focus {
    outline: 2px solid #8fbc8f;
}

input[type="checkbox"]:checked {
    background: #8fbc8f;
    border-color: #8fbc8f;
}

input[type="checkbox"]:checked::after {
    content: "X";
    color: #000000;
    font-weight: bold;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Brutalist radio buttons */
input[type="radio"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 1px solid #8fbc8f;
    background: #000000;
    cursor: pointer;
    vertical-align: middle;
    border-radius: 0;
    /* Keep square for brutalist look */
}

input[type="radio"]:hover {
    background: #0a0a0a;
}

input[type="radio"]:focus {
    outline: 2px solid #8fbc8f;
}

input[type="radio"]:checked {
    background: #8fbc8f;
    border-color: #8fbc8f;
}

input[type="radio"]:checked::after {
    content: "●";
    color: #000000;
    font-weight: bold;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    line-height: 1;
}

/* Brutalist text inputs */
input[type="text"] {
    background: #000000;
    border: 1px solid #8fbc8f;
    color: #8fbc8f;
    padding: 4px 8px;
    font-family: inherit;
    font-size: 12px;
    width: 100%;
    box-sizing: border-box;
}

input[type="text"]:hover {
    background: #0a0a0a;
}

input[type="text"]:focus {
    outline: 2px solid #8fbc8f;
    background: #0a0a0a;
}

input[type="text"]::placeholder {
    color: #7aa87a;
    opacity: 0.7;
}

/* Brutalist number inputs */
input[type="number"] {
    appearance: none;
    background: #000000;
    border: 1px solid #8fbc8f;
    color: #8fbc8f;
    padding: 4px 8px;
    font-family: inherit;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: bold;
}

input[type="number"]:hover {
    background: #0a0a0a;
}

input[type="number"]:focus {
    outline: 2px solid #8fbc8f;
    background: #0a0a0a;
}

/* Hide default number input spinners and replace with brutalist ones */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    appearance: none;
    margin: 0;
}

/* Firefox */
input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

/* We'll use a wrapper approach for the spinner buttons */
.number-input-wrapper {
    position: relative;
    display: inline-block;
}

.number-input-wrapper input[type="number"] {
    padding-right: 25px;
    /* Make room for buttons */
    position: relative;
    width: 100%;
    box-sizing: border-box;
    height: auto;
    min-height: 24px;
}

.number-spinner {
    position: absolute;
    right: 0;
    top: 1px;
    bottom: 1px;
    width: 20px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid #8fbc8f;
}

.number-spinner-btn {
    flex: 1;
    background: #8fbc8f;
    border: none;
    color: #000000;
    cursor: pointer;
    font-size: 8px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}

.number-spinner-btn:first-child {
    border-bottom: 1px solid #000000;
}

.number-spinner-btn:hover {
    background: #7aa87a;
}

.number-spinner-btn:active {
    background: #6a9a6a;
}

/* Ensure buttons also get uppercase text */
button {
    text-transform: uppercase;
    font: inherit;
    font-weight: bold;
}

/* Label styling for radio buttons */
label {
    color: #8fbc8f;
    cursor: pointer;
    user-select: none;
}

/* Rotate caret when drawer is open */
.drawer.open .drawer-caret {
    transform: rotate(120deg);
}