:root {
    --bg-color: #1a1a1a;
    --panel-bg: #252525;
    --text-color: #e0e0e0;
    --accent-color: #ff3e3e; /* Markforged Red-ish */
    --accent-hover: #ff6666;
    --border-color: #444;
    --code-bg: #111;
    --success-color: #4caf50;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', monospace;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

header {
    background-color: var(--panel-bg);
    border-bottom: 2px solid var(--accent-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

header .subtitle {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-left: 1rem;
    border-left: 1px solid var(--border-color);
    padding-left: 1rem;
}

main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.controls-panel {
    width: 400px;
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
}

.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--code-bg);
    overflow: hidden;
    position: relative;
}

/* Sections */
.control-section {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.control-section h2 {
    margin-top: 0;
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 0.6rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    border-radius: 4px;
    box-sizing: border-box;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.checkbox-group input {
    margin-right: 0.8rem;
}

/* Collapsible Details */
details {
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

details summary {
    padding: 0.8rem;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.03);
    font-size: 0.9rem;
    font-weight: 500;
    list-style: none; /* Hide default triangle in some browsers */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

details summary::-webkit-details-marker {
    display: none;
}

details summary::after {
    content: '+';
    font-family: var(--font-mono);
}

details[open] summary::after {
    content: '-';
}

details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.details-content {
    padding: 1rem;
    background-color: var(--bg-color);
}

/* Preview Area */
#code-preview {
    flex: 1;
    padding: 2rem;
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    color: #a9b7c6;
    overflow: auto;
    white-space: pre;
}

.action-bar {
    padding: 1rem 2rem;
    background-color: var(--panel-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: background-color 0.2s;
}

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

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

/* Utility */
.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    border-radius: 3px;
    margin-left: 0.5rem;
    text-transform: uppercase;
}

.badge-verified {
    background-color: rgba(76, 175, 80, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.badge-unverified {
    background-color: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid #ffc107;
}

.tooltip {
    font-size: 0.8rem;
    color: #888;
    margin-top: 0.2rem;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #666;
}