/* --- LAYOUT WORKSPACE GREEN (MANTIDO FIEL AO ORIGINAL) --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
	--workspace-bg: #0a0a0a; --surface-bg: #141414; 
	--surface-alt: #1a1a1a; --border-color: #1a1a1a; --border-hover: #10b981;
	--text-primary: #e0e0e0; --text-secondary: #9ca3af; --text-tertiary: #6b7280;
	--accent: #10b981; --accent-soft: rgba(16, 185, 129, 0.15);
	--danger: #ef4444; --warning: #f59e0b; --info: #3b82f6;
	--radius-md: 6px; --radius-sm: 4px; 
	--space-md: 8px;
	--font-sm: 10px; --font-md: 11px; --font-lg: 12px; --font-xl: 14px;
}

body { font-family: 'Inter', sans-serif; background: var(--workspace-bg); color: var(--text-primary); height: 100vh; overflow: hidden; font-size: var(--font-md); }

/* Header */
.app-header { height: 48px; background: var(--surface-bg); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; padding: 0 12px; justify-content: space-between; }
.header-title { font-size: var(--font-xl); font-weight: 700; color: var(--accent); display: flex; align-items: center; gap: 8px; }

/* Grid Principal */
.app-main { height: calc(100vh - 48px); padding: var(--space-md); display: grid; grid-template-columns: 240px 280px minmax(0, 1fr); gap: var(--space-md); }

/* Painéis */
.panel-col { display: flex; flex-direction: column; gap: var(--space-md); overflow: hidden; height: 100%; }
.panel-card { background: var(--surface-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: var(--space-md); display: flex; flex-direction: column; flex: 1; overflow: hidden; }

/* Scroll Area */
.scroll-content { flex: 1; overflow-y: auto; padding-right: 4px; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--surface-alt); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 2px; }

/* Section Headers */
.section-head { color: var(--accent); font-weight: 600; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; font-size: var(--font-lg); text-transform: uppercase; letter-spacing: 0.5px; padding-bottom: 6px; border-bottom: 1px solid var(--surface-alt); }

/* Navigation Items */
.nav-item { padding: 10px; background: var(--surface-alt); border: 1px solid var(--border-color); margin-bottom: 6px; border-radius: var(--radius-sm); cursor: pointer; display: flex; align-items: center; gap: 10px; transition: 0.2s; }
.nav-item:hover { border-color: var(--accent); transform: translateX(2px); }
.nav-item.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* Controls */
.ctrl-group { margin-bottom: 15px; background: var(--surface-alt); padding: 10px; border-radius: var(--radius-sm); }
.ctrl-label { display: flex; justify-content: space-between; margin-bottom: 5px; color: var(--text-secondary); font-size: 10px; }
.ctrl-range { width: 100%; accent-color: var(--accent); cursor: pointer; }
.ctrl-select { width: 100%; background: var(--workspace-bg); color: var(--text-primary); border: 1px solid #333; padding: 5px; border-radius: 4px; margin-bottom: 5px; font-size: 11px; }

.btn-action { width: 100%; padding: 8px; background: var(--accent); color: #000; border: none; border-radius: 4px; font-weight: 600; cursor: pointer; margin-top: 5px; }
.btn-action:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #d32f2f; }

/* Info/Metrics */
.metric-row { display: flex; justify-content: space-between; margin-bottom: 4px; font-size: 11px; border-bottom: 1px dashed #333; padding-bottom: 2px; }
.metric-val { font-weight: 700; color: var(--text-primary); }

/* Canvas Container */
.canvas-wrapper { flex: 1; position: relative; background: #000; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border-color); }
.sim-canvas { width: 100%; height: 100%; display: none; }
.sim-canvas.active { display: block; }

/* Overlays */
.overlay-info { position: absolute; top: 10px; left: 10px; background: rgba(0,0,0,0.7); padding: 8px; border-radius: 4px; border: 1px solid #333; pointer-events: none; z-index: 10; }
.equation-display { font-family: monospace; color: var(--accent); font-size: 12px; margin-bottom: 4px; }

/* Modules visibility */
.module-ctrl { display: none; }
.module-ctrl.active { display: block; animation: fadeIn 0.3s; }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }

.header-right { display: flex; align-items: center; gap: 6px; }
.back-button {
	background: var(--color-bg-page); border: 1px solid var(--border-color); color: var(--text-primary);
	padding: 6px; border-radius: var(--radius-sm); cursor: pointer; font-size: var(--font-sm);
	display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; transition: all 0.2s;
}
.back-button:hover {
	border-color: var(--accent); color: var(--accent); transform: translateY(-1px);
}