:root {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success-color: #10b981;
    --radius: 8px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.app-header {
    text-align: center;
    margin-bottom: 2rem;
}

.app-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

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

.workspace {
    background-color: var(--surface-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex: 1;
}

.toolbar {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.secondary-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: inherit;
}

.secondary-btn:hover:not(:disabled) {
    background-color: var(--border-color);
}

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

.action-btn:hover:not(:disabled) {
    filter: brightness(1.1);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(1);
}

input[type="text"],
textarea {
    flex: 1;
    padding: 0.6rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    min-height: 38px;
}

input[type="color"] {
    width: 40px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: none;
    cursor: pointer;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    user-select: none;
}

.checkbox-wrapper input[type="checkbox"] {
    accent-color: var(--primary-color);
    width: 16px;
    height: 16px;
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.canvas-wrapper {
    flex: 1;
    background-color: #000;
    /* Dark background for canvas area */
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

canvas {
    max-width: 100%;
    max-height: 80vh;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    cursor: crosshair;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 1rem;
    position: absolute;
    inset: 0;
    cursor: pointer;
    transition: background-color 0.2s;
}

.empty-state:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.instructions {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.instructions h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.instructions ol {
    padding-left: 1.5rem;
}

.instructions li {
    margin-bottom: 0.25rem;
}

/* Selection Box Styling */
.selection-box {
    border: 2px dashed var(--primary-color);
    background-color: rgba(59, 130, 246, 0.1);
    position: absolute;
    pointer-events: none;
}

/* Formatting Buttons */
.format-group {
    display: flex;
    gap: 2px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2px;
}

.icon-btn {
    padding: 0.4rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-color);
    border-radius: 4px;
}

.icon-btn:hover:not(:disabled) {
    background-color: var(--border-color);
}

.icon-btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* Color Dropdown Styles */
.color-dropdown-container {
    position: relative;
    display: inline-block;
}

.color-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0.5rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    display: flex;
    gap: 1rem;
    align-items: center;
    z-index: 100;
    min-width: 200px;
    justify-content: center;
}

.color-panel.hidden {
    display: none;
}

.color-preview-group {
    display: flex;
    gap: 4px;
    align-items: center;
}

.color-preview {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    display: inline-block;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.app-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

/* Magnifier */
.magnifier {
    position: absolute;
    width: 120px;
    height: 120px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 50;
    color: var(--text-muted);
    font-size: 0.9rem;
    user-select: none;
}

.checkbox-wrapper input[type="checkbox"] {
    accent-color: var(--primary-color);
    width: 16px;
    height: 16px;
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.canvas-wrapper {
    flex: 1;
    background-color: #000;
    /* Dark background for canvas area */
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

canvas {
    max-width: 100%;
    max-height: 80vh;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    cursor: crosshair;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 1rem;
    position: absolute;
    inset: 0;
    cursor: pointer;
    transition: background-color 0.2s;
}

.empty-state:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.instructions {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.instructions h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.instructions ol {
    padding-left: 1.5rem;
}

.instructions li {
    margin-bottom: 0.25rem;
}

/* Selection Box Styling */
.selection-box {
    border: 2px dashed var(--primary-color);
    background-color: rgba(59, 130, 246, 0.1);
    position: absolute;
    pointer-events: none;
}

/* Formatting Buttons */
.format-group {
    display: flex;
    gap: 2px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2px;
}

.icon-btn {
    padding: 0.4rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-color);
    border-radius: 4px;
}

.icon-btn:hover:not(:disabled) {
    background-color: var(--border-color);
}

.icon-btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* Color Dropdown Styles */
.color-dropdown-container {
    position: relative;
    display: inline-block;
}

.color-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0.5rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    display: flex;
    gap: 1rem;
    align-items: center;
    z-index: 100;
    min-width: 200px;
    justify-content: center;
}

.color-panel.hidden {
    display: none;
}

.color-preview-group {
    display: flex;
    gap: 4px;
    align-items: center;
}

.color-preview {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    display: inline-block;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.app-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

/* Magnifier */
.magnifier {
    position: absolute;
    width: 120px;
    height: 120px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 50;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    background-color: #fff;
}

.magnifier.hidden {
    display: none;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 4px;
}

/* Adjustment Controls */
.adjustment-controls {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background-color: var(--surface-color);
    border-left: 1px solid var(--border-color);
    padding-left: 0.8rem;
    margin-left: 0.5rem;
}

.adjustment-controls.hidden {
    display: none;
}

.separator {
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.setting-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.num-input {
    width: 60px;
    padding: 0.4rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 0.9rem;
}

.btn-group {
    display: flex;
    gap: 2px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2px;
}

input[type="color"] {
    width: 40px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: none;
    cursor: pointer;
}