:root {
    --bg-color: #0f172a;
    --panel-bg: #1e293b;
    --header-bg: rgba(30, 41, 59, 0.8);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --accent-secondary: #475569;
    --border-color: #334155;
    --font-ui: 'Inter', sans-serif;
    --font-code: 'Fira Code', monospace;
}

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

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

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
}

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

.logo-icon {
    font-size: 1.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.project-name-container {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    padding: 0 20px;
}

#project-name {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-ui);
    width: 250px;
    text-align: center;
    outline: none;
    transition: all 0.2s ease;
}

#project-name:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-family: var(--font-ui);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.2);
}

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

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

.btn-secondary:hover {
    background-color: #64748b;
}

/* Main Layout */
.app-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Workspace Panel */
.workspace-panel {
    flex: 2;
    position: relative;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.workspace-tabs {
    display: flex;
    background: #0f172a;
    height: 40px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    padding: 0 20px;
    cursor: pointer;
    font-family: var(--font-ui);
    font-weight: 500;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    background: rgba(255, 255, 255, 0.05);
}

.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

/* Simulator Styles */
.sim-component-instance {
    position: absolute;
    width: 80px;
    height: 80px;
    cursor: grab;
    user-select: none;
}
.sim-component-instance:active {
    cursor: grabbing;
}

/* Blockly injects its own elements, we just provide the container */
.code-panel {
    flex: 1;
    flex-direction: column;
    background-color: var(--panel-bg);
    min-width: 300px;
    display: none; /* Escondido por padrão */
}

.code-panel.active {
    display: flex;
}

/* Code Preview Panel */
.code-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.code-header h2 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.code-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

#code-preview {
    font-family: var(--font-code);
    font-size: 0.875rem;
    line-height: 1.5;
    color: #e2e8f0;
    white-space: pre-wrap;
}

/* Custom Scrollbar for Code Panel */
.code-content::-webkit-scrollbar {
    width: 8px;
}
.code-content::-webkit-scrollbar-track {
    background: transparent;
}
.code-content::-webkit-scrollbar-thumb {
    background-color: var(--accent-secondary);
    border-radius: 4px;
}

/* Customizações do Menu Lateral (Toolbox) Blockly */
.blocklyToolboxDiv {
    width: 280px !important;
    min-width: 280px !important;
    padding-top: 10px;
}

.blocklyTreeLabel, 
.blocklyTreeRow span,
.blocklyTreeRow text {
    font-family: var(--font-ui) !important;
    font-size: 1.4rem !important; /* Bem maior */
    color: #0A2540 !important; /* Azul Escuro */
    fill: #0A2540 !important; /* Para SVG */
    font-weight: 800 !important;
}

.blocklyTreeRow {
    min-height: 55px !important; /* Mais altura */
    padding: 10px !important;
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

/* Transforma o FieldAngle numa meia lua visual */
.blocklyAnglePicker {
    clip-path: inset(0 0 50% 0);
}

/* Estilos para Estruturas (Cenários) */
.sim-component-instance {
    position: absolute;
    transform-origin: top left;
    z-index: 50; /* Componentes ficam acima das estruturas */
}

.sim-structure-instance {
    position: absolute;
    transform-origin: top left;
    z-index: 10; /* Fica atrás dos componentes (z-index 50) e fios */
}

/* Quando bloqueado, a imagem não recebe eventos de mouse (passa através) */
.sim-structure-instance[data-locked="true"] {
    pointer-events: none;
    opacity: 0.8; /* Leve transparência para indicar que está fixo */
}

.structure-lock-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 24px;
    height: 24px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #ccc;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: all 0.2s;
    pointer-events: auto; /* O botão SEMPRE recebe eventos, mesmo se o pai estiver locked */
}

.structure-lock-btn:hover {
    background: white;
    transform: scale(1.1);
}