/* =============================
   ESTILOS GLOBALES Y NAVEGACIÓN
   ============================= */
:root {
    --bg-color: #ffffff;
    --panel-bg: #f8f9fa;
    --cell-bg: #ffffff;
    --cell-hover: #eef2f5;
    --text-main: #333333;
    --text-muted: #666666;
    --accent-blue: #5DADE2;
    --accent-green: #F4D03F;
    --accent-yellow: #FF69B4;
    --border-radius: 8px;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #FFF9E6;
    color: var(--text-main);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.btn-volver-sim {
    position: absolute;
    top: 20px;
    left: 20px;
    display: inline-block;
    padding: 12px 24px;
    background-color: transparent;
    color: #FF69B4;
    text-decoration: none;
    border-radius: 6px;
    font-size: 21px;
    border: 2px solid #FF69B4;
    transition: all 0.2s ease;
    z-index: 1000;
}

.btn-volver-sim:hover {
    background-color: rgba(255, 105, 180, 0.1); 
    color: #E91E63; 
    border-color: #E91E63;
    box-shadow: 0 4px 8px rgba(255, 105, 180, 0.2);
}

.logo-top-right {
    position: absolute;
    top: 20px;
    right: 20px;
    height: 52px;
    z-index: 1000;
}

.container {
    background-color: var(--panel-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    max-width: 800px;
    width: 100%;
    position: relative;
    border: 1px solid #e0e0e0;
}

h1 {
    font-size: 1.5rem;
    margin-top: 0;
    border-bottom: 2px solid #5DADE2;
    padding-bottom: 10px;
    color: #5DADE2;
}

.info-panel {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* ==========================
   GRILLA DE MEMORIA Y CELDAS
   ========================== */
.ram-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 8px;
    margin-bottom: 30px;
    position: relative;
}

.cell {
    background-color: var(--cell-bg);
    border: 2px solid #cccccc;
    border-radius: var(--border-radius);
    padding: 8px;
    text-align: center;
    transition: all 0.2s ease;
    position: relative;
    cursor: text;
}

.cell .address {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 5px;
    pointer-events: none;
}

.cell .value {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 1rem;
    font-weight: bold;
    pointer-events: none;
    color: #333333;
}

.cell:hover {
    background-color: var(--cell-hover);
    border-color: var(--accent-blue);
}

/* ==========================
   ESTADOS VISUALES DINÁMICOS
   ========================== */
.cell.pointer {
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(93, 173, 226, 0.3);
    cursor: pointer;
}

.cell.pointer:hover { 
    box-shadow: 0 0 15px rgba(93, 173, 226, 0.6); 
}

.cell.target { 
    background-color: rgba(93, 173, 226, 0.15); 
}

.cell.vector {
    border-color: var(--accent-green);
    background-color: rgba(244, 208, 63, 0.15);
}

.cell.string {
    border-color: var(--accent-yellow);
    background-color: rgba(255, 105, 180, 0.15);
}

.cell.string-null { 
    color: var(--accent-yellow);
    font-weight: bold; 
}

/* ===============
   CONTROLES Y LOG
   =============== */
.controls {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

button {
    background-color: #ffffff;
    color: #333333;
    border: 1px solid #cccccc;
    padding: 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: bold;
    font-size: 0.85rem;
    transition: all 0.2s;
}

button:hover {
    background-color: #eaf2f8;
    border-color: var(--accent-blue);
}

.log {
    margin-top: 20px;
    padding: 10px;
    background: #eaf2f8;
    border: 1px solid #5DADE2;
    border-radius: 6px;
    font-family: monospace;
    color: #2c3e50;
    min-height: 20px;
}

/* =======================================
   ELEMENTOS UI ESPECÍFICOS (Switch y SVG)
   ======================================= */
#svgLayer {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 100;
}

.toggle-container {
    display: flex;
    align-items: center;
    gap: 10px;
    grid-column: span 4;
    margin-bottom: 10px;
}

.switch { position: relative; 
    display: inline-block; 
    width: 50px; 
    height: 24px; 
}

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

.slider { 
    position: absolute; 
    cursor: pointer; 
    top: 0; 
    left: 0; 
    right: 0; 
    bottom: 0; 
    background-color: #cccccc; 
    transition: .4s; 
    border-radius: 34px; 
}

.slider:before { 
    position: absolute; 
    content: ""; 
    height: 16px; 
    width: 16px; 
    left: 4px; 
    bottom: 4px; 
    background-color: white; 
    transition: .4s; 
    border-radius: 50%; 
}

input:checked + .slider { 
    background-color: var(--accent-blue); 
}

input:checked + .slider:before { 
    transform: translateX(26px); 
}

/* =================================================
   ESTILOS PARA STRUCTS, PADDING Y CELDAS DE RELLENO
   ================================================= */
.cell.struct-member {
    border-color: #9b59b6;
    background-color: rgba(155, 89, 182, 0.15);
}

.cell.padding {
    background-color: #e0e0e0;
    border: 1px dashed #999999;
    color: #555555;
    opacity: 0.8;
}

.cell.padding .value {
    font-size: 0.8rem;
    font-style: italic;
}

/* ================================================
   ESTILOS PARA VARIABLES INDIVIDUALES (INT Y CHAR)
   ================================================ */
.cell.single-int {
    border-color: var(--accent-green);
    background-color: rgba(244, 208, 63, 0.15);
}

.cell.single-char {
    border-color: var(--accent-yellow);
    background-color: rgba(255, 105, 180, 0.15);
}

/* ============================================================
   SOBREESCRIBIENDO ESTILOS PARA EL SEGMENTO DE MEMORIA OCUPADA
   ============================================================ */
.sizeof-container {
    background-color: #FFF9E6 !important;
    border-color: #F4D03F !important;
}

.sizeof-container button {
    background-color: #FF69B4 !important;
    color: white !important;
    border: none !important;
}

#sizeofResult {
    color: #5DADE2 !important;
}

/* ================================
   ESTILO PARA EL RECUADRO FANTASMA
   ================================ */
.ghost-box {
    position: absolute;
    border: 2px dashed #5DADE2 !important;
    background-color: rgba(234, 242, 248, 0.95) !important;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2) !important;
    z-index: 1000;
    pointer-events: none;
    width: 50px;
    padding: 5px !important;
}

/* =================
   DISEÑO RESPONSIVO
   ================= */
@media (max-width: 850px) {
    .ram-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 600px) {
    .btn-volver-sim {
        padding: 7px 14px;
        font-size: 13px;
    }
    body { padding: 10px; }
    .container { 
        padding: 15px; 
        margin-top: 4rem;
    }
    .controls { 
        display: grid; 
        grid-template-columns: 1fr; 
    }
    .controls button,
    .sizeof-container { 
        grid-column: 1 / -1 !important; 
    }
    .sizeof-container { flex-direction: column; gap: 15px; }
    .cell { padding: 5px; }
    .cell .value { font-size: 0.9rem; }
    .cell .address { font-size: 0.65rem; }
    .logo-top-right {display: none;}
}