/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-dark: #f8fafc;
    --panel-dark: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --accent-primary: #2563eb;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    --accent-glow: rgba(37, 99, 235, 0.15);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition-speed: 0.3s;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden;
    line-height: 1.5;
}

/* App Layout */
.app-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    width: 100vw;
    height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    background-color: var(--panel-dark);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    z-index: 10;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.3);
}

.app-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.logo-icon {
    font-size: 20px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.logo-area h1 {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 12px;
    color: var(--text-secondary);
}

.config-section {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    padding: 24px;
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 20px 0;
}

/* Form Styling */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.select-wrapper {
    position: relative;
}

select, input[type="text"], input[type="number"], input[type="color"] {
    width: 100%;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

select:focus, input[type="text"]:focus, input[type="number"]:focus, input[type="color"]:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-glow);
}

input[type="color"] {
    padding: 4px;
    height: 42px;
    cursor: pointer;
}

select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

.select-wrapper::after {
    content: "▼";
    font-size: 10px;
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-secondary);
}

/* Slider Controls */
.slider-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

input[type="range"] {
    flex: 1;
    appearance: none;
    background: rgba(255, 255, 255, 0.1);
    height: 6px;
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    box-shadow: 0 0 8px var(--accent-primary);
    transition: transform var(--transition-speed);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider-val {
    font-family: var(--font-mono);
    font-size: 13px;
    width: 45px;
    text-align: right;
}

/* Checkbox Toggle */
.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    transition: background-color var(--transition-speed);
}

.toggle-container input {
    display: none;
}

.toggle-container input:checked + .toggle-switch {
    background: var(--accent-gradient);
}

.toggle-switch::after {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: white;
    top: 3px;
    left: 3px;
    transition: transform var(--transition-speed);
}

.toggle-container input:checked + .toggle-switch::after {
    transform: translateX(20px);
}

/* Button & Controls Footer */
.controls {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.btn {
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.1s, box-shadow var(--transition-speed), filter var(--transition-speed);
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.25);
}

.btn-primary:hover:not(:disabled) {
    filter: brightness(1.1);
    box-shadow: 0 6px 20px rgba(0, 210, 255, 0.4);
}

.btn-secondary {
    background-color: rgba(0, 0, 0, 0.04);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: rgba(0, 0, 0, 0.08);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

/* Loading Spinner */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s infinite linear;
}

.hidden {
    display: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Viewport Area */
.viewport-area {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    background-color: #0c0f1d;
}

#canvas-container {
    flex: 1;
    width: 100%;
    position: relative;
}

.viewport-instructions {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    padding: 8px 16px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    font-size: 11px;
    color: var(--text-secondary);
    pointer-events: none;
    text-align: center;
}

/* Console Panel */
.console-panel {
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: height var(--transition-speed);
}

.console-panel.collapsed {
    height: 40px;
}

.console-panel:not(.collapsed) {
    height: 350px;
}

.console-header {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    cursor: pointer;
}

.console-header h3 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
}

.btn-toggle-console {
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: 12px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 600;
}

.console-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #334155;
    background-color: #f1f5f9;
    border: none;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

.btn-row {
    display: flex;
    gap: 12px;
    width: 100%;
}
.btn-row .btn {
    flex: 1;
    margin: 0;
}