:root {
    --primary: #00B894;
    --secondary: #55EFC4;
    --accent: #FDCB6E;
    --bg: #0A1A14;
    --bg-panel: rgba(20, 40, 32, 0.6);
    --bg-input: rgba(10, 26, 20, 0.8);
    --text-primary: #f0fdf9;
    --text-secondary: #8ab9aa;
    --border: rgba(85, 239, 196, 0.2);
    --border-radius: 12px;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'Fira Code', monospace;
    --transition: 250ms ease;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(0, 184, 148, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(85, 239, 196, 0.05) 0%, transparent 50%);
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

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

.app-header h1 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

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

.app-header code {
    font-family: var(--font-mono);
    background: var(--bg-input);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--accent);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    flex: 1;
    min-height: 0;
}

.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.left-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.right-panel {
    display: flex;
    flex-direction: column;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

textarea {
    width: 100%;
    height: 120px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 1rem;
    resize: vertical;
    transition: border-color var(--transition);
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
}

textarea::placeholder {
    color: rgba(138, 185, 170, 0.5);
}

.input-controls {
    margin-top: 1rem;
    display: flex;
    align-items: center;
}

/* Button Styles */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: var(--primary);
    color: #000;
}

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: rgba(85, 239, 196, 0.1);
    border-color: var(--secondary);
}

.icon-btn {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}

.icon-btn:hover {
    background: rgba(0, 184, 148, 0.2);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: relative;
    width: 36px;
    height: 20px;
    background-color: var(--bg-input);
    transition: .4s;
    border-radius: 34px;
    border: 1px solid var(--border);
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: rgba(0, 184, 148, 0.3);
    border-color: var(--primary);
}

input:checked+.slider:before {
    transform: translateX(16px);
    background-color: var(--primary);
}

.label-text {
    margin-left: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Commands List */
.commands-container {
    flex: 1;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-input);
    max-height: 400px;
}

.empty-state {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.command-item {
    display: flex;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    align-items: baseline;
    transition: background var(--transition);
}

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

.command-item:hover,
.command-item.active {
    background: rgba(0, 184, 148, 0.1);
}

.cmd-letter {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent);
    width: 24px;
    flex-shrink: 0;
}

.cmd-params {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 0.875rem;
    flex: 1;
    word-wrap: break-word;
}

.cmd-desc {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-left: 1rem;
    width: 100px;
    text-align: right;
    flex-shrink: 0;
}

/* Preview Canvas */
.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.canvas-container {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    cursor: grab;
}

.canvas-container:active {
    cursor: grabbing;
}

svg {
    width: 100%;
    height: 100%;
    transform-origin: center center;
    transition: transform 0.1s ease-out;
}

.grid-line {
    stroke: rgba(85, 239, 196, 0.1);
    stroke-width: 1;
}

.grid-line.major {
    stroke: rgba(85, 239, 196, 0.2);
}

.preview-controls {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.preview-controls label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-right: 0.5rem;
}

#viewbox-input {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    width: 140px;
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#zoom-level {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    width: 48px;
    text-align: center;
}

.control-point {
    fill: var(--accent);
    stroke: var(--bg);
    stroke-width: 2;
    cursor: pointer;
    transition: r 0.1s ease;
}

.control-point:hover {
    r: 6;
    fill: #fff;
}

.control-line {
    stroke: var(--accent);
    stroke-width: 1;
    stroke-dasharray: 4, 4;
    opacity: 0.5;
}

.grid-toggle-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-container {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Responsive */
@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .canvas-container {
        min-height: 400px;
    }
}